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subsection</span> </button> <ul id="toc-Physical_characteristics-sublist" class="vector-toc-list"> <li id="toc-Coloration" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Coloration"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Coloration</span> </div> </a> <ul id="toc-Coloration-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-History" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#History"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>History</span> </div> </a> <ul id="toc-History-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Structure" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Structure"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Structure</span> </div> </a> <ul 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</ul> </li> <li id="toc-Evolution" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Evolution"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Evolution</span> </div> </a> <ul id="toc-Evolution-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-See_also" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#See_also"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>See also</span> </div> </a> <ul id="toc-See_also-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Notes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Notes"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Notes</span> </div> </a> <ul id="toc-Notes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">9</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Orion Nebula</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 78 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-78" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">78 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Orionnewel" title="Orionnewel – Afrikaans" lang="af" hreflang="af" data-title="Orionnewel" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B3%D8%AF%D9%8A%D9%85_%D8%A7%D9%84%D8%AC%D8%A8%D8%A7%D8%B1" title="سديم الجبار – Arabic" lang="ar" hreflang="ar" data-title="سديم الجبار" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Nebulosa_d%27Ori%C3%B3n" title="Nebulosa d'Orión – Asturian" lang="ast" hreflang="ast" data-title="Nebulosa d'Orión" data-language-autonym="Asturianu" data-language-local-name="Asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/NGC_1976" title="NGC 1976 – Azerbaijani" lang="az" hreflang="az" data-title="NGC 1976" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%95%E0%A6%BE%E0%A6%B2%E0%A6%AA%E0%A7%81%E0%A6%B0%E0%A7%81%E0%A6%B7_%E0%A6%A8%E0%A7%80%E0%A6%B9%E0%A6%BE%E0%A6%B0%E0%A6%BF%E0%A6%95%E0%A6%BE" title="কালপুরুষ নীহারিকা – Bangla" lang="bn" hreflang="bn" data-title="কালপুরুষ নীহারিকা" data-language-autonym="বাংলা" data-language-local-name="Bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bjn mw-list-item"><a href="https://bjn.wikipedia.org/wiki/Nebula_Orion" title="Nebula Orion – Banjar" lang="bjn" hreflang="bjn" data-title="Nebula Orion" data-language-autonym="Banjar" data-language-local-name="Banjar" class="interlanguage-link-target"><span>Banjar</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Messier_42" title="Messier 42 – Minnan" lang="nan" hreflang="nan" data-title="Messier 42" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A2%D1%83%D0%BC%D0%B0%D0%BD%D0%BD%D0%B0%D1%81%D1%86%D1%8C_%D0%90%D1%80%D1%8B%D1%91%D0%BD%D0%B0" title="Туманнасць Арыёна – Belarusian" lang="be" hreflang="be" data-title="Туманнасць Арыёна" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A2%D1%83%D0%BC%D0%B0%D0%BD%D0%BD%D0%B0%D1%81%D1%8C%D1%86%D1%8C_%D0%90%D1%80%D1%8B%D1%91%D0%BD%D0%B0" title="Туманнасьць Арыёна – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Туманнасьць Арыёна" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9E%D1%80%D0%B8%D0%BE%D0%BD_(%D0%BC%D1%8A%D0%B3%D0%BB%D1%8F%D0%B2%D0%B8%D0%BD%D0%B0)" title="Орион (мъглявина) – Bulgarian" lang="bg" hreflang="bg" data-title="Орион (мъглявина)" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Orionova_maglina" title="Orionova maglina – Bosnian" lang="bs" hreflang="bs" data-title="Orionova maglina" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Nivlennad_Orion" title="Nivlennad Orion – Breton" lang="br" hreflang="br" data-title="Nivlennad Orion" data-language-autonym="Brezhoneg" data-language-local-name="Breton" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Nebulosa_d%27Ori%C3%B3" title="Nebulosa d'Orió – Catalan" lang="ca" hreflang="ca" data-title="Nebulosa d'Orió" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Mlhovina_v_Orionu" title="Mlhovina v Orionu – Czech" lang="cs" hreflang="cs" data-title="Mlhovina v Orionu" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-co mw-list-item"><a href="https://co.wikipedia.org/wiki/Nebulosa_d%27Orione" title="Nebulosa d'Orione – Corsican" lang="co" hreflang="co" data-title="Nebulosa d'Orione" data-language-autonym="Corsu" data-language-local-name="Corsican" class="interlanguage-link-target"><span>Corsu</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Nifwl_Mawr_Orion" title="Nifwl Mawr Orion – Welsh" lang="cy" hreflang="cy" data-title="Nifwl Mawr Orion" data-language-autonym="Cymraeg" data-language-local-name="Welsh" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Oriont%C3%A5gen" title="Oriontågen – Danish" lang="da" hreflang="da" data-title="Oriontågen" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de badge-Q17437796 badge-featuredarticle mw-list-item" title="featured article badge"><a href="https://de.wikipedia.org/wiki/Orionnebel" title="Orionnebel – German" lang="de" hreflang="de" data-title="Orionnebel" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Orioni_udu" title="Orioni udu – Estonian" lang="et" hreflang="et" data-title="Orioni udu" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9D%CE%B5%CF%86%CE%AD%CE%BB%CF%89%CE%BC%CE%B1_%CF%84%CE%BF%CF%85_%CE%A9%CF%81%CE%AF%CF%89%CE%BD%CE%B1" title="Νεφέλωμα του Ωρίωνα – Greek" lang="el" hreflang="el" data-title="Νεφέλωμα του Ωρίωνα" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es badge-Q17437798 badge-goodarticle mw-list-item" title="good article badge"><a href="https://es.wikipedia.org/wiki/Nebulosa_de_Ori%C3%B3n" title="Nebulosa de Orión – Spanish" lang="es" hreflang="es" data-title="Nebulosa de Orión" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Nebulozo_de_Oriono" title="Nebulozo de Oriono – Esperanto" lang="eo" hreflang="eo" data-title="Nebulozo de Oriono" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Orion_nebulosa" title="Orion nebulosa – Basque" lang="eu" hreflang="eu" data-title="Orion nebulosa" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B3%D8%AD%D8%A7%D8%A8%DB%8C_%D8%B4%DA%A9%D8%A7%D8%B1%DA%86%DB%8C" title="سحابی شکارچی – Persian" lang="fa" hreflang="fa" data-title="سحابی شکارچی" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/N%C3%A9buleuse_d%27Orion" title="Nébuleuse d'Orion – French" lang="fr" hreflang="fr" data-title="Nébuleuse d'Orion" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Buaile_an_Bhodaigh" title="Buaile an Bhodaigh – Irish" lang="ga" hreflang="ga" data-title="Buaile an Bhodaigh" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Nebulosa_de_Ori%C3%B3n" title="Nebulosa de Orión – Galician" lang="gl" hreflang="gl" data-title="Nebulosa de Orión" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%98%A4%EB%A6%AC%EC%98%A8_%EC%84%B1%EC%9A%B4" title="오리온 성운 – Korean" lang="ko" hreflang="ko" data-title="오리온 성운" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%95%D6%80%D5%AB%D5%B8%D5%B6%D5%AB_%D5%B4%D5%AB%D5%A3%D5%A1%D5%B4%D5%A1%D5%AE%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Օրիոնի միգամածություն – Armenian" lang="hy" hreflang="hy" data-title="Օրիոնի միգամածություն" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%93%E0%A4%B0%E0%A4%BE%E0%A4%AF%E0%A4%A8_%E0%A4%A8%E0%A5%80%E0%A4%B9%E0%A4%BE%E0%A4%B0%E0%A4%BF%E0%A4%95%E0%A4%BE" title="ओरायन नीहारिका – Hindi" lang="hi" hreflang="hi" data-title="ओरायन नीहारिका" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Messier_42" title="Messier 42 – Croatian" lang="hr" hreflang="hr" data-title="Messier 42" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Nebula_Orion" title="Nebula Orion – Indonesian" lang="id" hreflang="id" data-title="Nebula Orion" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-zu mw-list-item"><a href="https://zu.wikipedia.org/wiki/Umqongo_ImPambano" title="Umqongo ImPambano – Zulu" lang="zu" hreflang="zu" data-title="Umqongo ImPambano" data-language-autonym="IsiZulu" data-language-local-name="Zulu" class="interlanguage-link-target"><span>IsiZulu</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/%C3%93r%C3%ADon%C3%BEokan" title="Óríonþokan – Icelandic" lang="is" hreflang="is" data-title="Óríonþokan" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it badge-Q17437796 badge-featuredarticle mw-list-item" title="featured article badge"><a href="https://it.wikipedia.org/wiki/Nebulosa_di_Orione" title="Nebulosa di Orione – Italian" lang="it" hreflang="it" data-title="Nebulosa di Orione" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A2%D7%A8%D7%A4%D7%99%D7%9C%D7%99%D7%AA_%D7%90%D7%95%D7%A8%D7%99%D7%95%D7%9F" title="ערפילית אוריון – Hebrew" lang="he" hreflang="he" data-title="ערפילית אוריון" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9D%E1%83%A0%E1%83%98%E1%83%9D%E1%83%9C%E1%83%98%E1%83%A1_%E1%83%9C%E1%83%98%E1%83%A1%E1%83%9A%E1%83%94%E1%83%A3%E1%83%9A%E1%83%98" title="ორიონის ნისლეული – Georgian" lang="ka" hreflang="ka" data-title="ორიონის ნისლეული" data-language-autonym="ქართული" data-language-local-name="Georgian" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9E%D1%80%D0%B8%D0%BE%D0%BD_%D1%82%D2%B1%D0%BC%D0%B0%D0%BD%D0%B4%D1%8B%D2%93%D1%8B" title="Орион тұмандығы – Kazakh" lang="kk" hreflang="kk" data-title="Орион тұмандығы" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Nebula_ya_Jabari" title="Nebula ya Jabari – Swahili" lang="sw" hreflang="sw" data-title="Nebula ya Jabari" data-language-autonym="Kiswahili" data-language-local-name="Swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Oriona_migl%C4%81js" title="Oriona miglājs – Latvian" lang="lv" hreflang="lv" data-title="Oriona miglājs" data-language-autonym="Latviešu" data-language-local-name="Latvian" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Orionniwwel" title="Orionniwwel – Luxembourgish" lang="lb" hreflang="lb" data-title="Orionniwwel" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxembourgish" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Didysis_Oriono_%C5%ABkas" title="Didysis Oriono ūkas – Lithuanian" lang="lt" hreflang="lt" data-title="Didysis Oriono ūkas" data-language-autonym="Lietuvių" data-language-local-name="Lithuanian" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Orion-k%C3%B6d" title="Orion-köd – Hungarian" lang="hu" hreflang="hu" data-title="Orion-köd" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9E%D1%80%D0%B8%D0%BE%D0%BD_(%D0%BC%D0%B0%D0%B3%D0%BB%D0%B8%D0%BD%D0%B0)" title="Орион (маглина) – Macedonian" lang="mk" hreflang="mk" data-title="Орион (маглина)" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%93%E0%B4%B1%E0%B4%BF%E0%B4%AF%E0%B5%BA_%E0%B4%A8%E0%B5%86%E0%B4%AC%E0%B5%81%E0%B4%B2" title="ഓറിയൺ നെബുല – Malayalam" lang="ml" hreflang="ml" data-title="ഓറിയൺ നെബുല" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mzn mw-list-item"><a href="https://mzn.wikipedia.org/wiki/%D9%85%D8%B3%DB%8C%D9%87_%DB%B4%DB%B2" title="مسیه ۴۲ – Mazanderani" lang="mzn" hreflang="mzn" data-title="مسیه ۴۲" data-language-autonym="مازِرونی" data-language-local-name="Mazanderani" class="interlanguage-link-target"><span>مازِرونی</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Nebula_Belantik" title="Nebula Belantik – Malay" lang="ms" hreflang="ms" data-title="Nebula Belantik" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%A1%E1%80%AD%E1%80%AF%E1%80%9B%E1%80%AD%E1%80%AF%E1%80%84%E1%80%BA%E1%80%9A%E1%80%BD%E1%80%94%E1%80%BA_%E1%80%94%E1%80%80%E1%80%BA%E1%80%97%E1%80%BB%E1%80%B0%E1%80%9C%E1%80%AC" title="အိုရိုင်ယွန် နက်ဗျူလာ – Burmese" lang="my" hreflang="my" data-title="အိုရိုင်ယွန် နက်ဗျူလာ" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Burmese" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Orionnevel" title="Orionnevel – Dutch" lang="nl" hreflang="nl" data-title="Orionnevel" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%AA%E3%83%AA%E3%82%AA%E3%83%B3%E5%A4%A7%E6%98%9F%E9%9B%B2" title="オリオン大星雲 – Japanese" lang="ja" hreflang="ja" data-title="オリオン大星雲" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ce mw-list-item"><a href="https://ce.wikipedia.org/wiki/NGC_1976" title="NGC 1976 – Chechen" lang="ce" hreflang="ce" data-title="NGC 1976" data-language-autonym="Нохчийн" data-language-local-name="Chechen" class="interlanguage-link-target"><span>Нохчийн</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Oriont%C3%A5ken" title="Oriontåken – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Oriontåken" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Oriont%C3%A5ka" title="Oriontåka – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Oriontåka" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Nebulosa_d%27Orion" title="Nebulosa d'Orion – Occitan" lang="oc" hreflang="oc" data-title="Nebulosa d'Orion" data-language-autonym="Occitan" data-language-local-name="Occitan" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Orion_katta_tumanligi" title="Orion katta tumanligi – Uzbek" lang="uz" hreflang="uz" data-title="Orion katta tumanligi" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%B4%DA%A9%D8%A7%D8%B1%DB%8C_%D8%A8%D8%AF%D9%84%DB%8C" title="شکاری بدلی – Western Punjabi" lang="pnb" hreflang="pnb" data-title="شکاری بدلی" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pl badge-Q17437798 badge-goodarticle mw-list-item" title="good article badge"><a href="https://pl.wikipedia.org/wiki/Wielka_Mg%C5%82awica_w_Orionie" title="Wielka Mgławica w Orionie – Polish" lang="pl" hreflang="pl" data-title="Wielka Mgławica w Orionie" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Nebulosa_de_%C3%93rion" title="Nebulosa de Órion – Portuguese" lang="pt" hreflang="pt" data-title="Nebulosa de Órion" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro badge-Q17437798 badge-goodarticle mw-list-item" title="good article badge"><a href="https://ro.wikipedia.org/wiki/Nebuloasa_Orion" title="Nebuloasa Orion – Romanian" lang="ro" hreflang="ro" data-title="Nebuloasa Orion" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru badge-Q17437798 badge-goodarticle mw-list-item" title="good article badge"><a href="https://ru.wikipedia.org/wiki/%D0%A2%D1%83%D0%BC%D0%B0%D0%BD%D0%BD%D0%BE%D1%81%D1%82%D1%8C_%D0%9E%D1%80%D0%B8%D0%BE%D0%BD%D0%B0" title="Туманность Ориона – Russian" lang="ru" hreflang="ru" data-title="Туманность Ориона" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Orion_nebula" title="Orion nebula – Simple English" lang="en-simple" hreflang="en-simple" data-title="Orion nebula" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Ori%C3%B3n_(hmlovina)" title="Orión (hmlovina) – Slovak" lang="sk" hreflang="sk" data-title="Orión (hmlovina)" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Orionova_meglica" title="Orionova meglica – Slovenian" lang="sl" hreflang="sl" data-title="Orionova meglica" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9E%D1%80%D0%B8%D0%BE%D0%BD_(%D0%BC%D0%B0%D0%B3%D0%BB%D0%B8%D0%BD%D0%B0)" title="Орион (маглина) – Serbian" lang="sr" hreflang="sr" data-title="Орион (маглина)" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Messier_42" title="Messier 42 – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Messier 42" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croatian" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Orionin_sumu" title="Orionin sumu – Finnish" lang="fi" hreflang="fi" data-title="Orionin sumu" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Orionnebulosan" title="Orionnebulosan – Swedish" lang="sv" hreflang="sv" data-title="Orionnebulosan" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%92%E0%AE%B0%E0%AE%BF%E0%AE%AF%E0%AE%A9%E0%AF%8D_%E0%AE%A8%E0%AF%86%E0%AE%AA%E0%AF%81%E0%AE%B2%E0%AE%BE" title="ஒரியன் நெபுலா – Tamil" lang="ta" hreflang="ta" data-title="ஒரியன் நெபுலா" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/NGC_1976" title="NGC 1976 – Tatar" lang="tt" hreflang="tt" data-title="NGC 1976" data-language-autonym="Татарча / tatarça" data-language-local-name="Tatar" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%99%E0%B8%9A%E0%B8%B4%E0%B8%A7%E0%B8%A5%E0%B8%B2%E0%B8%99%E0%B8%B2%E0%B8%A2%E0%B8%9E%E0%B8%A3%E0%B8%B2%E0%B8%99" title="เนบิวลานายพราน – Thai" lang="th" hreflang="th" data-title="เนบิวลานายพราน" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Orion_Bulutsusu" title="Orion Bulutsusu – Turkish" lang="tr" hreflang="tr" data-title="Orion Bulutsusu" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A2%D1%83%D0%BC%D0%B0%D0%BD%D0%BD%D1%96%D1%81%D1%82%D1%8C_%D0%9E%D1%80%D1%96%D0%BE%D0%BD%D0%B0" title="Туманність Оріона – Ukrainian" lang="uk" hreflang="uk" data-title="Туманність Оріона" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Tinh_v%C3%A2n_L%E1%BA%A1p_H%E1%BB%99" title="Tinh vân Lạp Hộ – Vietnamese" lang="vi" hreflang="vi" data-title="Tinh vân Lạp Hộ" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Orion_Nebula" title="Orion Nebula – Waray" lang="war" hreflang="war" data-title="Orion Nebula" data-language-autonym="Winaray" data-language-local-name="Waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%8C%8E%E6%88%B7%E5%BA%A7%E5%A4%A7%E6%98%9F%E4%BA%91" title="猎户座大星云 – Wu" lang="wuu" hreflang="wuu" data-title="猎户座大星云" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%8D%B5%E6%88%B6%E5%BA%A7%E5%A4%A7%E6%98%9F%E9%9B%B2" title="獵戶座大星雲 – Cantonese" lang="yue" hreflang="yue" data-title="獵戶座大星雲" data-language-autonym="粵語" data-language-local-name="Cantonese" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/NGC_1976" title="NGC 1976 – Zazaki" lang="diq" hreflang="diq" data-title="NGC 1976" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%8C%8E%E6%88%B7%E5%BA%A7%E5%A4%A7%E6%98%9F%E4%BA%91" title="猎户座大星云 – Chinese" lang="zh" hreflang="zh" data-title="猎户座大星云" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q13903#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav 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map" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/20px-Jupiter_and_moon.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/30px-Jupiter_and_moon.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/40px-Jupiter_and_moon.png 2x" data-file-width="128" data-file-height="128" /></span></span> <a rel="nofollow" class="external text" href="http://www.wikisky.org/?ra=5.5881388888889&de=-5.3911111111111&zoom=4&show_grid=1&show_constellation_lines=1&show_constellation_boundaries=1&show_const_names=1&show_galaxies=1&img_source=IMG_all">05<sup>h</sup> 35<sup>m</sup> 17.3<sup>s</sup>, −05° 23′ 28″</a></span></div></div> <div id="mw-indicator-good-star" class="mw-indicator"><div class="mw-parser-output"><span typeof="mw:File"><a href="/wiki/Wikipedia:Good_articles*" title="This is a good article. Click here for more information."><img alt="This is a good article. Click here for more information." src="//upload.wikimedia.org/wikipedia/en/thumb/9/94/Symbol_support_vote.svg/19px-Symbol_support_vote.svg.png" decoding="async" width="19" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/94/Symbol_support_vote.svg/29px-Symbol_support_vote.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/94/Symbol_support_vote.svg/39px-Symbol_support_vote.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(Redirected from <a href="/w/index.php?title=NGC_1976&redirect=no" class="mw-redirect" title="NGC 1976">NGC 1976</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Diffuse nebula in the constellation Orion</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><caption class="infobox-title">Orion Nebula</caption><tbody><tr><th colspan="2" class="infobox-above"><a href="/wiki/Diffuse_nebula" class="mw-redirect" title="Diffuse nebula">Diffuse nebula</a></th></tr><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg/300px-Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg" decoding="async" width="300" height="300" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg/450px-Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg/600px-Orion_Nebula_-_Hubble_2006_mosaic_18000.jpg 2x" data-file-width="18000" data-file-height="18000" /></a></span><div class="infobox-caption">The entire Orion Nebula in a composite image of visible light and infrared; taken by <a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble Space Telescope</a> in 2006</div></td></tr><tr><th colspan="2" class="infobox-header">Observation data: <a href="/wiki/Epoch_(astronomy)#Julian_years_and_J2000" title="Epoch (astronomy)">J2000</a> <a href="/wiki/Epoch_(astronomy)" title="Epoch (astronomy)">epoch</a></th></tr><tr><th scope="row" class="infobox-label" style="background: inherit;">Subtype</th><td class="infobox-data"><a href="/wiki/Reflection_nebula" title="Reflection nebula">Reflection</a>/<a href="/wiki/Emission_nebula" title="Emission nebula">Emission</a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background: inherit;"><a href="/wiki/Right_ascension" title="Right ascension">Right ascension</a></th><td class="infobox-data"><span class="nowrap">05<sup>h</sup> 35<sup>m</sup> 17.3<sup>s</sup></span><sup id="cite_ref-simbad_1-0" class="reference"><a href="#cite_note-simbad-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background: inherit;"><a href="/wiki/Declination" title="Declination">Declination</a></th><td class="infobox-data">−05° 23′ 28″<sup id="cite_ref-simbad_1-1" class="reference"><a href="#cite_note-simbad-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background: inherit;">Distance</th><td class="infobox-data">1,344±20 <a href="/wiki/Light-year" title="Light-year">ly</a>   (412<sup id="cite_ref-arxiv0902_3-0" class="reference"><a href="#cite_note-arxiv0902-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Parsec" title="Parsec">pc</a>)</td></tr><tr><th scope="row" class="infobox-label" style="background: inherit;"><a href="/wiki/Apparent_magnitude" title="Apparent magnitude">Apparent magnitude</a> (V)</th><td class="infobox-data">4.0<sup id="cite_ref-SEDS_4-0" class="reference"><a href="#cite_note-SEDS-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background: inherit;">Apparent dimensions (V)</th><td class="infobox-data">65×60 <a href="/wiki/Minute_of_arc" class="mw-redirect" title="Minute of arc">arcmins</a><sup id="cite_ref-revised_ngc_5-0" class="reference"><a href="#cite_note-revised_ngc-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background: inherit;"><a href="/wiki/Constellation" title="Constellation">Constellation</a></th><td class="infobox-data"><a href="/wiki/Orion_(constellation)" title="Orion (constellation)">Orion</a></td></tr><tr><th colspan="2" class="infobox-header">Physical characteristics</th></tr><tr><th scope="row" class="infobox-label" style="background: inherit;"><a href="/wiki/Radius" title="Radius">Radius</a></th><td class="infobox-data">12<style data-mw-deduplicate="TemplateStyles:r1041539562">.mw-parser-output .citation{word-wrap:break-word}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}</style><sup class="citation nobold" id="ref_Anone"><a href="#endnote_Anone">[a]</a></sup> ly</td></tr><tr><th scope="row" class="infobox-label" style="background: inherit;"><a href="/wiki/Absolute_magnitude" title="Absolute magnitude">Absolute magnitude</a> (V)</th><td class="infobox-data">-4.1</td></tr><tr><th colspan="2" class="infobox-header"></th></tr><tr><th scope="row" class="infobox-label" style="background: inherit;">Notable features</th><td class="infobox-data"><a href="/wiki/Trapezium_(astronomy)" class="mw-redirect" title="Trapezium (astronomy)">Trapezium cluster</a></td></tr><tr><th scope="row" class="infobox-label" style="background: inherit;">Designations</th><td class="infobox-data"><a href="/wiki/New_General_Catalogue" title="New General Catalogue">NGC</a> 1976, M42,<br />LBN 974, <a href="/wiki/Sharpless_catalog" title="Sharpless catalog">Sharpless</a> 281</td></tr><tr><td colspan="2" class="infobox-below noprint">See also: <a href="/wiki/Category:Lists_of_nebulae" title="Category:Lists of nebulae">Lists of nebulae</a></td></tr></tbody></table> <p>The <b>Orion Nebula</b> (also known as <b>Messier 42</b>, <b>M42</b>, or <b>NGC 1976</b>) is a <a href="/wiki/Diffuse_nebula" class="mw-redirect" title="Diffuse nebula">diffuse nebula</a> situated in the <a href="/wiki/Milky_Way" title="Milky Way">Milky Way</a>, being south of <a href="/wiki/Orion%27s_Belt" title="Orion's Belt">Orion's Belt</a> in the <a href="/wiki/Orion_(constellation)" title="Orion (constellation)">constellation of Orion</a>,<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1041539562"><sup class="citation nobold" id="ref_Bnone"><a href="#endnote_Bnone">[b]</a></sup> and is known as the middle "star" in the "sword" of Orion. It is one of the brightest <a href="/wiki/Nebula" title="Nebula">nebulae</a> and is visible to the <a href="/wiki/Naked_eye" title="Naked eye">naked eye</a> in the night sky with an <a href="/wiki/Apparent_magnitude" title="Apparent magnitude">apparent magnitude</a> of 4.0. It is 1,344 ± 20 <a href="/wiki/Light-year" title="Light-year">light-years</a> (412.1 ± 6.1 <a href="/wiki/Parsec" title="Parsec">pc</a>) away<sup id="cite_ref-arxiv0902_3-1" class="reference"><a href="#cite_note-arxiv0902-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-pasj59_5_6-0" class="reference"><a href="#cite_note-pasj59_5-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> and is the closest region of massive <a href="/wiki/Star_formation" title="Star formation">star formation</a> to <a href="/wiki/Earth" title="Earth">Earth</a>. The M42 nebula is estimated to be 24 light-years across (so its apparent size from Earth is approximately 1 degree). It has a mass of about 2,000 times that of the <a href="/wiki/Sun" title="Sun">Sun</a>. Older texts frequently refer to the Orion Nebula as the <b>Great Nebula</b> in Orion or the <b>Great Orion Nebula</b>.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>The Orion Nebula is one of the most scrutinized and photographed objects in the night sky and is among the most intensely studied celestial features.<sup id="cite_ref-successor_8-0" class="reference"><a href="#cite_note-successor-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The nebula has revealed much about the process of how <a href="/wiki/Star" title="Star">stars</a> and <a href="/wiki/Planet" title="Planet">planetary</a> systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed <a href="/wiki/Protoplanetary_disk" title="Protoplanetary disk">protoplanetary disks</a> and <a href="/wiki/Brown_dwarf" title="Brown dwarf">brown dwarfs</a> within the nebula, intense and <a href="/wiki/Turbulence" title="Turbulence">turbulent motions</a> of the gas, and the <a href="/wiki/Photoionization" title="Photoionization">photo-ionizing</a> effects of massive nearby stars in the nebula. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Physical_characteristics">Physical characteristics</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=1" title="Edit section: Physical characteristics"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><span><video id="mwe_player_0" poster="//upload.wikimedia.org/wikipedia/commons/thumb/d/df/Hubble_Snaps_View_of_the_Orion_Nebula.ogv/300px--Hubble_Snaps_View_of_the_Orion_Nebula.ogv.jpg" controls="" preload="none" data-mw-tmh="" class="mw-file-element" width="300" height="225" data-durationhint="333" data-mwtitle="Hubble_Snaps_View_of_the_Orion_Nebula.ogv" data-mwprovider="wikimediacommons" resource="/wiki/File:Hubble_Snaps_View_of_the_Orion_Nebula.ogv"><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/d/df/Hubble_Snaps_View_of_the_Orion_Nebula.ogv/Hubble_Snaps_View_of_the_Orion_Nebula.ogv.240p.vp9.webm" type="video/webm; codecs="vp9, opus"" data-transcodekey="240p.vp9.webm" data-width="320" data-height="240" /><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/d/df/Hubble_Snaps_View_of_the_Orion_Nebula.ogv/Hubble_Snaps_View_of_the_Orion_Nebula.ogv.360p.webm" type="video/webm; codecs="vp8, vorbis"" data-transcodekey="360p.webm" data-width="320" data-height="240" /><source src="//upload.wikimedia.org/wikipedia/commons/d/df/Hubble_Snaps_View_of_the_Orion_Nebula.ogv" type="video/ogg; codecs="theora, vorbis"" data-width="320" data-height="240" /><source src="//upload.wikimedia.org/wikipedia/commons/transcoded/d/df/Hubble_Snaps_View_of_the_Orion_Nebula.ogv/Hubble_Snaps_View_of_the_Orion_Nebula.ogv.144p.mjpeg.mov" type="video/quicktime" data-transcodekey="144p.mjpeg.mov" data-width="192" data-height="144" /></video></span><figcaption>Discussing the location of the Orion Nebula, what is seen within the star-formation region, and the effects of interstellar winds in shaping the nebula</figcaption></figure> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Orion_composite1.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Orion_composite1.jpg/200px-Orion_composite1.jpg" decoding="async" width="200" height="452" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Orion_composite1.jpg/300px-Orion_composite1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5b/Orion_composite1.jpg/400px-Orion_composite1.jpg 2x" data-file-width="1266" data-file-height="2862" /></a><figcaption>The constellation of Orion with the Orion Nebula (lower middle)</figcaption></figure> <p>The Orion Nebula is visible with the naked eye even from areas affected by <a href="/wiki/Light_pollution" title="Light pollution">light pollution</a>. It is seen as the middle "star" in the "sword" of Orion, which are the three stars located south of Orion's Belt. The "star" appears fuzzy to sharp-eyed observers, and the nebulosity is obvious through <a href="/wiki/Binoculars" title="Binoculars">binoculars</a> or a small <a href="/wiki/Telescope" title="Telescope">telescope</a>. The peak surface brightness of the central region of M42 is about 17 Mag/arcsec<sup>2</sup> and the outer bluish glow has a peak surface brightness of 21.3 Mag/arcsec<sup>2</sup>.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>The Orion Nebula contains a very young <a href="/wiki/Open_cluster" title="Open cluster">open cluster</a>, known as the <a href="/wiki/Trapezium_Cluster" title="Trapezium Cluster">Trapezium Cluster</a> due to the <a href="/wiki/Asterism_(astronomy)" title="Asterism (astronomy)">asterism</a> of its primary four stars within a diameter of 1.5 light years. Two of these can be resolved into their component binary systems on nights with good <a href="/wiki/Astronomical_seeing" title="Astronomical seeing">seeing</a>, giving a total of six stars. The stars of the Trapezium Cluster, along with many other stars, are still in their <a href="/wiki/Star_formation" title="Star formation">early years</a>. The Trapezium Cluster is a component of the much larger Orion Nebula cluster, an association of about 2,800 stars within a diameter of 20 light years.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> The Orion Nebula is in turn surrounded by the much larger <a href="/wiki/Orion_molecular_cloud_complex" title="Orion molecular cloud complex">Orion molecular cloud complex</a> which is hundreds of light years across, spanning the whole Orion Constellation. Two million years ago the Orion Nebula cluster may have been the home of the <a href="/wiki/Runaway_star" class="mw-redirect" title="Runaway star">runaway stars</a> <a href="/wiki/AE_Aurigae" title="AE Aurigae">AE Aurigae</a>, <a href="/wiki/53_Arietis" title="53 Arietis">53 Arietis</a>, and <a href="/wiki/Mu_Columbae" title="Mu Columbae">Mu Columbae</a>, which are currently moving away from the nebula at speeds greater than 100 km/s (62 mi/s).<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Coloration">Coloration</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=2" title="Edit section: Coloration"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Observers have long noted a distinctive greenish tint to the nebula, in addition to regions of red and of blue-violet. The red hue is a result of the <a href="/wiki/H-alpha" class="mw-redirect" title="H-alpha">Hα</a> recombination line <a href="/wiki/Radiation" title="Radiation">radiation</a> at a <a href="/wiki/Wavelength" title="Wavelength">wavelength</a> of 656.3 <a href="/wiki/Nanometer" class="mw-redirect" title="Nanometer">nm</a>. The blue-violet coloration is the reflected radiation from the massive <a href="/wiki/Stellar_classification" title="Stellar classification">O-class</a> stars at the core of the nebula. </p><p>The green hue was a puzzle for astronomers in the early part of the 20th century because none of the known <a href="/wiki/Spectral_line" title="Spectral line">spectral lines</a> at that time could explain it. There was some speculation that the lines were caused by a new element, and the name <a href="/wiki/Nebulium" title="Nebulium">nebulium</a> was coined for this mysterious material. With better understanding of <a href="/wiki/Atomic_physics" title="Atomic physics">atomic physics</a>, however, it was later determined that the green spectrum was caused by a low-probability <a href="/wiki/Electron" title="Electron">electron</a> transition in <a href="/wiki/Doubly_ionized_oxygen" title="Doubly ionized oxygen">doubly ionized oxygen</a>, a so-called "<a href="/wiki/Forbidden_line" class="mw-redirect" title="Forbidden line">forbidden transition</a>". This radiation was impossible to reproduce in the laboratory at the time, because it depended on the <a href="https://en.wiktionary.org/wiki/quiescence#English" class="extiw" title="wiktionary:quiescence">quiescent</a> and nearly collision-free environment found in the high vacuum of deep space.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=3" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:M42m.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/48/M42m.jpg/220px-M42m.jpg" decoding="async" width="220" height="224" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/48/M42m.jpg/330px-M42m.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/48/M42m.jpg/440px-M42m.jpg 2x" data-file-width="730" data-file-height="742" /></a><figcaption>Messier's drawing of the Orion Nebula in his 1771 memoir, <i>Mémoires de l'Académie Royale</i></figcaption></figure> <p>There has been speculation that the <a href="/wiki/Maya_civilization" title="Maya civilization">Mayans</a> of <a href="/wiki/Central_America" title="Central America">Central America</a> may have described the nebula within their "Three Hearthstones" creation myth; if so, the three would correspond to two stars at the base of Orion, <a href="/wiki/Rigel" title="Rigel">Rigel</a> and <a href="/wiki/Saiph" title="Saiph">Saiph</a>, and another, <a href="/wiki/Alnitak" title="Alnitak">Alnitak</a> at the tip of the "belt" of the imagined hunter, the vertices of a nearly perfect equilateral triangle<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Vagueness" title="Wikipedia:Vagueness"><span title="3 points always perfectly determine a triangle. Do you mean almost an equilateral triangle? If so, off by what %-age? (January 2012)">vague</span></a></i>]</sup> with <a href="/wiki/Orion%27s_Sword" title="Orion's Sword">Orion's Sword</a> (including the Orion Nebula) in the middle of the triangle<sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Vagueness" title="Wikipedia:Vagueness"><span title=""middle" could mean just "inside", in which case say that specifically, rather than leaving the construction "centered" in play. (Every triangle does have a point where its three medians meet; you could mean close to there; IIRC, the closer it is to equilateral, the closer to there the 3 pairwise intersections of the perpendicular bisectors lie, and likewise those intersections of the bisectors of the vertex angles. (January 2012)">vague</span></a></i>]</sup> seen as the smudge of smoke from <a href="/wiki/Copal" title="Copal">copal</a> incense in a modern myth, or, in (the translation it suggests of) an ancient one, the literal or figurative embers of a fiery creation.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Krupp1999_14-0" class="reference"><a href="#cite_note-Krupp1999-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>Neither <a href="/wiki/Ptolemy" title="Ptolemy">Ptolemy</a>'s <i><a href="/wiki/Almagest" title="Almagest">Almagest</a></i> nor <a href="/wiki/Abd_al-Rahman_al-Sufi" title="Abd al-Rahman al-Sufi">al Sufi</a>'s <i><a href="/wiki/Book_of_Fixed_Stars" class="mw-redirect" title="Book of Fixed Stars">Book of Fixed Stars</a></i> noted this nebula, even though they both listed patches of nebulosity elsewhere in the night sky; nor did <a href="/wiki/Galileo_Galilei" title="Galileo Galilei">Galileo</a> mention it, even though he also made telescopic observations surrounding it in 1610 and 1617.<sup id="cite_ref-James_15-0" class="reference"><a href="#cite_note-James-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> This has led to some speculation that a flare-up of the illuminating stars may have increased the brightness of the nebula.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p><p>The first discovery of the diffuse nebulous nature of the Orion Nebula is generally credited to French astronomer <a href="/wiki/Nicolas-Claude_Fabri_de_Peiresc" title="Nicolas-Claude Fabri de Peiresc">Nicolas-Claude Fabri de Peiresc</a>, on November 26, 1610, when he made a record of observing it with a <a href="/wiki/Refracting_telescope" title="Refracting telescope">refracting telescope</a> purchased by his patron <a href="/wiki/Guillaume_du_Vair" title="Guillaume du Vair">Guillaume du Vair</a>.<sup id="cite_ref-James_15-1" class="reference"><a href="#cite_note-James-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>The first published observation of the nebula was by the Jesuit mathematician and astronomer <a href="/wiki/Johann_Baptist_Cysat" title="Johann Baptist Cysat">Johann Baptist Cysat</a> of <a href="/wiki/Lucerne" title="Lucerne">Lucerne</a> in his 1619 monograph on the comets (describing observations of the nebula that may date back to 1611).<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> <sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> He made comparisons between it and a bright <a href="/wiki/Comet" title="Comet">comet</a> seen in 1618 and described how the nebula appeared through his telescope as: </p> <style data-mw-deduplicate="TemplateStyles:r1244412712">.mw-parser-output .templatequote{overflow:hidden;margin:1em 0;padding:0 32px}.mw-parser-output .templatequotecite{line-height:1.5em;text-align:left;margin-top:0}@media(min-width:500px){.mw-parser-output .templatequotecite{padding-left:1.6em}}</style><blockquote class="templatequote"><p>one sees how in like manner some stars are compressed into a very narrow space and how round about and between the stars a white light like that of a white cloud is poured out.<sup id="cite_ref-Schreiber_19-0" class="reference"><a href="#cite_note-Schreiber-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup></p></blockquote> <p>His description of the center stars as different from a comet's head in that they were a "rectangle" may have been an early description of the <a href="/wiki/Trapezium_Cluster" title="Trapezium Cluster">Trapezium Cluster</a>.<sup id="cite_ref-James_15-2" class="reference"><a href="#cite_note-James-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Schreiber_19-1" class="reference"><a href="#cite_note-Schreiber-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> (The first detection of three of the four stars of this cluster is credited to <a href="/wiki/Galileo_Galilei" title="Galileo Galilei">Galileo Galilei</a> in a February 4, 1617.<sup id="cite_ref-Bard_21-0" class="reference"><a href="#cite_note-Bard-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> <sup id="cite_ref-Original_22-0" class="reference"><a href="#cite_note-Original-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup>)<sup class="noprint Inline-Template noprint Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:No_original_research#Primary,_secondary_and_tertiary_sources" title="Wikipedia:No original research"><span title="This claim needs references to reliable secondary sources. (February 2024)">non-primary source needed</span></a></i>]</sup> </p><p>The nebula was independently "discovered" (though visible to the naked eye) by several other prominent astronomers in the following years, including by <a href="/wiki/Giovanni_Battista_Hodierna" title="Giovanni Battista Hodierna">Giovanni Battista Hodierna</a> (whose sketch was the first published in <i><a href="/wiki/De_systemate_orbis_cometici,_deque_admirandis_coeli_characteribus" title="De systemate orbis cometici, deque admirandis coeli characteribus">De systemate orbis cometici, deque admirandis coeli characteribus</a></i>).<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> In 1659, Dutch scientist <a href="/wiki/Christiaan_Huygens" title="Christiaan Huygens">Christiaan Huygens</a> published the first detailed drawing of the central region of the nebula in <i>Systema Saturnium</i>.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Charles_Messier" title="Charles Messier">Charles Messier</a> observed the nebula on March 4, 1769, and he also noted three of the stars in Trapezium. Messier published the first edition of his catalog of deep sky objects in 1774 (completed in 1771).<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> As the Orion Nebula was the 42nd object in his list, it became identified as M42. </p> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Henry_Drape_Orion_nebula_1880_inverted.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Henry_Drape_Orion_nebula_1880_inverted.jpg/200px-Henry_Drape_Orion_nebula_1880_inverted.jpg" decoding="async" width="200" height="175" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Henry_Drape_Orion_nebula_1880_inverted.jpg/300px-Henry_Drape_Orion_nebula_1880_inverted.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Henry_Drape_Orion_nebula_1880_inverted.jpg/400px-Henry_Drape_Orion_nebula_1880_inverted.jpg 2x" data-file-width="450" data-file-height="393" /></a><figcaption><a href="/wiki/Henry_Draper" title="Henry Draper">Henry Draper</a>'s 1880 photograph of the Orion Nebula, the first ever taken.</figcaption></figure> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Orion-Nebula_A_A_Common.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Orion-Nebula_A_A_Common.jpg/200px-Orion-Nebula_A_A_Common.jpg" decoding="async" width="200" height="152" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Orion-Nebula_A_A_Common.jpg/300px-Orion-Nebula_A_A_Common.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9f/Orion-Nebula_A_A_Common.jpg/400px-Orion-Nebula_A_A_Common.jpg 2x" data-file-width="1056" data-file-height="800" /></a><figcaption>One of Andrew Ainslie Common's 1883 photographs of the Orion Nebula, the first to show that a long exposure could record new stars and nebulae invisible to the human eye.</figcaption></figure> <p>In 1865 English <a href="/wiki/Amateur_astronomer" class="mw-redirect" title="Amateur astronomer">amateur astronomer</a> <a href="/wiki/William_Huggins" title="William Huggins">William Huggins</a> used his visual <a href="/wiki/Spectroscopy" title="Spectroscopy">spectroscopy</a> method to examine the nebula showing it, like other nebulae he had examined, was made up of "luminous gas".<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> On September 30, 1880 <a href="/wiki/Henry_Draper" title="Henry Draper">Henry Draper</a> used the new <a href="/wiki/Dry_plate" class="mw-redirect" title="Dry plate">dry plate</a> photographic process with an 11-inch (28 cm) <a href="/wiki/Refracting_telescope" title="Refracting telescope">refracting telescope</a> to make a 51-minute exposure of the Orion Nebula, the first instance of <a href="/wiki/Astrophotography" title="Astrophotography">astrophotography</a> of a nebula in history. Another set of photographs of the nebula in 1883 saw a breakthrough in astronomical photography when amateur astronomer <a href="/wiki/Andrew_Ainslie_Common" title="Andrew Ainslie Common">Andrew Ainslie Common</a> used the dry plate process to record several images in exposures up to 60 minutes with a 36-inch (91 cm) <a href="/wiki/Reflecting_telescope" title="Reflecting telescope">reflecting telescope</a> that he constructed in the backyard of his home in <a href="/wiki/Ealing" title="Ealing">Ealing</a>, west London. These images for the first time showed stars and nebula detail too faint to be seen by the human eye.<sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p><p>In 1902, <a href="/wiki/Hermann_Carl_Vogel" title="Hermann Carl Vogel">Vogel</a> and Eberhard discovered differing velocities within the nebula, and by 1914 astronomers at <a href="/wiki/Marseilles" class="mw-redirect" title="Marseilles">Marseilles</a> had used the interferometer to detect rotation and irregular motions. Campbell and Moore confirmed these results using the spectrograph, demonstrating turbulence within the nebula.<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </p><p>In 1931, <a href="/wiki/Robert_Julius_Trumpler" title="Robert Julius Trumpler">Robert J. Trumpler</a> noted that the fainter stars near the <a href="/wiki/Trapezium_(astronomy)" class="mw-redirect" title="Trapezium (astronomy)">Trapezium</a> formed a cluster, and he was the first to name them the Trapezium cluster. Based on their magnitudes and spectral types, he derived a distance estimate of 1,800 light years. This was three times farther than the commonly accepted distance estimate of the period but was much closer to the modern value.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> </p><p>In 1993, the <a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble Space Telescope</a> first observed the Orion Nebula. Since then, the nebula has been a frequent target for HST studies. The images have been used to build a detailed model of the nebula in three dimensions. <a href="/wiki/Protoplanetary_disk" title="Protoplanetary disk">Protoplanetary disks</a> have been observed around most of the newly formed stars in the nebula, and the destructive effects of high levels of <a href="/wiki/Ultraviolet" title="Ultraviolet">ultraviolet</a> energy from the most massive stars have been studied.<sup id="cite_ref-salisbury_30-0" class="reference"><a href="#cite_note-salisbury-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> </p><p>In 2005, the <i>Advanced Camera for Surveys</i> instrument of the Hubble Space Telescope finished capturing the most detailed image of the nebula yet taken. The image was taken through 104 orbits of the telescope, capturing over 3,000 stars down to the 23rd magnitude, including infant <a href="/wiki/Brown_dwarf" title="Brown dwarf">brown dwarfs</a> and possible brown dwarf <a href="/wiki/Binary_star" title="Binary star">binary stars</a>.<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> A year later, scientists working with the HST announced the first ever masses of a pair of eclipsing binary brown dwarfs, <a href="/wiki/2MASS_J05352184%E2%80%930546085" class="mw-redirect" title="2MASS J05352184–0546085">2MASS J05352184–0546085</a>. The pair are located in the Orion Nebula and have approximate masses of 0.054 <a href="/wiki/Solar_mass" title="Solar mass"><var>M</var><sub>☉</sub></a> and 0.034 <var>M</var><sub>☉</sub> respectively, with an orbital period of 9.8 days. Surprisingly, the more massive of the two also turned out to be the less luminous.<sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> </p><p>In October 2023, astronomers, based on observations of the Orion Nebula with the <a href="/wiki/James_Webb_Space_Telescope" title="James Webb Space Telescope">James Webb Space Telescope</a>, reported the discovery of <i>pairs</i> of <a href="/wiki/Rogue_planet" title="Rogue planet">rogue planets</a>, similar in mass to the planet <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>, and called <a href="/wiki/JuMBOs" class="mw-redirect" title="JuMBOs">JuMBOs</a> (short for <a href="/wiki/Jupiter_Mass_Binary_Objects" class="mw-redirect" title="Jupiter Mass Binary Objects">Jupiter Mass Binary Objects</a>).<sup id="cite_ref-NYT-20231002_33-0" class="reference"><a href="#cite_note-NYT-20231002-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Structure">Structure</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=4" title="Edit section: Structure"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Regioni_celesti_scelte_-_SpadaOrione.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/Regioni_celesti_scelte_-_SpadaOrione.png/350px-Regioni_celesti_scelte_-_SpadaOrione.png" decoding="async" width="350" height="262" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/db/Regioni_celesti_scelte_-_SpadaOrione.png/525px-Regioni_celesti_scelte_-_SpadaOrione.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/db/Regioni_celesti_scelte_-_SpadaOrione.png/700px-Regioni_celesti_scelte_-_SpadaOrione.png 2x" data-file-width="3000" data-file-height="2242" /></a><figcaption>A <a href="/wiki/Starchart" class="mw-redirect" title="Starchart">starchart</a> of the Orion Nebula.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Trapezium_cluster_optical_and_infrared_comparison.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Trapezium_cluster_optical_and_infrared_comparison.jpg/220px-Trapezium_cluster_optical_and_infrared_comparison.jpg" decoding="async" width="220" height="110" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Trapezium_cluster_optical_and_infrared_comparison.jpg/330px-Trapezium_cluster_optical_and_infrared_comparison.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ed/Trapezium_cluster_optical_and_infrared_comparison.jpg/440px-Trapezium_cluster_optical_and_infrared_comparison.jpg 2x" data-file-width="791" data-file-height="395" /></a><figcaption>Optical images reveal clouds of gas and dust in the Orion Nebula; an infrared image (right) reveals the new stars shining within.</figcaption></figure> <p>The entirety of the Orion Nebula extends across a 1° region of the sky, and includes <a href="/wiki/Interstellar_cloud" title="Interstellar cloud">neutral clouds of gas and dust</a>, <a href="/wiki/Star_cluster" title="Star cluster">associations of stars</a>, <a href="/wiki/H_II_region" title="H II region">ionized volumes of gas</a>, and <a href="/wiki/Reflection_nebula" title="Reflection nebula">reflection nebulae</a>. </p><p>The Nebula is part of a much larger nebula that is known as the <a href="/wiki/Orion_molecular_cloud_complex" title="Orion molecular cloud complex">Orion molecular cloud complex</a>. The Orion molecular cloud complex extends throughout the <a href="/wiki/Constellation" title="Constellation">constellation</a> of <a href="/wiki/Orion_(constellation)" title="Orion (constellation)">Orion</a> and includes <a href="/wiki/Barnard%27s_Loop" title="Barnard's Loop">Barnard's Loop</a>, the <a href="/wiki/Horsehead_Nebula" title="Horsehead Nebula">Horsehead Nebula</a>, <a href="/wiki/Messier_43" title="Messier 43">M43</a>, <a href="/wiki/Messier_78" title="Messier 78">M78</a>, and the <a href="/wiki/Flame_Nebula" title="Flame Nebula">Flame Nebula</a>. Stars are forming throughout the entire Cloud Complex, but most of the young stars are concentrated in dense clusters like the one illuminating the Orion Nebula.<sup id="cite_ref-Megeath_34-0" class="reference"><a href="#cite_note-Megeath-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> <sup id="cite_ref-Kuhn15_35-0" class="reference"><a href="#cite_note-Kuhn15-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:The_Orion_A_molecular_cloud_from_VISTA.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/The_Orion_A_molecular_cloud_from_VISTA.jpg/220px-The_Orion_A_molecular_cloud_from_VISTA.jpg" decoding="async" width="220" height="128" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/The_Orion_A_molecular_cloud_from_VISTA.jpg/330px-The_Orion_A_molecular_cloud_from_VISTA.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/The_Orion_A_molecular_cloud_from_VISTA.jpg/440px-The_Orion_A_molecular_cloud_from_VISTA.jpg 2x" data-file-width="39578" data-file-height="23069" /></a><figcaption>Orion A molecular cloud from <a href="/wiki/VISTA_(telescope)" title="VISTA (telescope)">VISTA</a> reveals many young stars and other objects.<sup id="cite_ref-36" class="reference"><a href="#cite_note-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup></figcaption></figure> <p>The current astronomical model for the nebula consists of an ionized (<a href="/wiki/H_II_region" title="H II region">H II</a>) region, roughly centered on <a href="/wiki/Theta1_Orionis_C" title="Theta1 Orionis C">Theta<sup>1</sup> Orionis C</a>, which lies on the side of an elongated molecular cloud in a cavity formed by the massive young stars.<sup id="cite_ref-ODell_37-0" class="reference"><a href="#cite_note-ODell-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> (Theta<sup>1</sup> Orionis C emits 3-4 times as much photoionizing light as the next brightest star, Theta<sup>2</sup> Orionis A.) The H II region has a temperature ranging up to 10,000 K, but this temperature falls dramatically near the edge of the nebula.<sup id="cite_ref-Balick_38-0" class="reference"><a href="#cite_note-Balick-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> The nebulous emission comes primarily from photoionized gas on the back surface of the cavity.<sup id="cite_ref-ODell09_39-0" class="reference"><a href="#cite_note-ODell09-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> The H II region is surrounded by an irregular, concave bay of more neutral, high-density cloud, with clumps of neutral gas lying outside the bay area. This in turn lies on the perimeter of the Orion Molecular Cloud. The gas in the molecular cloud displays a range of velocities and turbulence, particularly around the core region. Relative movements are up to 10 km/s (22,000 mi/h), with local variations of up to 50 km/s and possibly more.<sup id="cite_ref-Balick_38-1" class="reference"><a href="#cite_note-Balick-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> </p><p>Observers have given names to various features in the Orion Nebula. The dark bay that extends from the north into the bright region is known as "Sinus Magnus",<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> also called the "Fish's Mouth". The illuminated regions to both sides are called the "Wings". Other features include "The Sword", "The Thrust", and "The Sail".<sup id="cite_ref-41" class="reference"><a href="#cite_note-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Star_formation">Star formation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=5" title="Edit section: Star formation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:M42proplyds.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/M42proplyds.jpg/220px-M42proplyds.jpg" decoding="async" width="220" height="164" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/da/M42proplyds.jpg/330px-M42proplyds.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/da/M42proplyds.jpg/440px-M42proplyds.jpg 2x" data-file-width="510" data-file-height="381" /></a><figcaption>View of several <a href="/wiki/Proplyd" title="Proplyd">proplyds</a> within the Orion Nebula taken by the <a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble Space Telescope</a></figcaption></figure> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Star_Formation_Fireworks_in_Orion.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Star_Formation_Fireworks_in_Orion.jpg/220px-Star_Formation_Fireworks_in_Orion.jpg" decoding="async" width="220" height="218" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Star_Formation_Fireworks_in_Orion.jpg/330px-Star_Formation_Fireworks_in_Orion.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cf/Star_Formation_Fireworks_in_Orion.jpg/440px-Star_Formation_Fireworks_in_Orion.jpg 2x" data-file-width="3864" data-file-height="3825" /></a><figcaption>Star Formation Fireworks in Orion</figcaption></figure> <p>The Orion Nebula is an example of a <a href="/wiki/Stellar_nursery" class="mw-redirect" title="Stellar nursery">stellar nursery</a> where new stars are being born. Observations of the nebula have revealed approximately 700 stars in various stages of formation within the nebula. </p><p>In 1979 observations with the <a href="/wiki/Andr%C3%A9_Lallemand" title="André Lallemand">Lallemand electronic camera</a> at the <a href="/wiki/Pic_du_Midi_Observatory" class="mw-redirect" title="Pic du Midi Observatory">Pic-du-Midi Observatory</a> showed six unresolved high-ionization sources near the <a href="/wiki/Trapezium_Cluster" title="Trapezium Cluster">Trapezium Cluster</a>. These sources were interpreted as partly ionized globules (PIGs). The idea was that these objects are being ionized from the outside by M42.<sup id="cite_ref-42" class="reference"><a href="#cite_note-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> Later observations with the <a href="/wiki/Very_Large_Array" title="Very Large Array">Very Large Array</a> showed solar-system-sized condensations associated with these sources. Here the idea appeared that these objects might be low-mass stars surrounded by an evaporating protostellar accretion disk.<sup id="cite_ref-43" class="reference"><a href="#cite_note-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup> In 1993 observations with the <a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble Space Telescope</a> have yielded the major confirmation of <a href="/wiki/Protoplanetary_disk" title="Protoplanetary disk">protoplanetary disks</a> within the Orion Nebula, which have been dubbed <a href="/wiki/Proplyds" class="mw-redirect" title="Proplyds">proplyds</a>.<sup id="cite_ref-44" class="reference"><a href="#cite_note-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-45" class="reference"><a href="#cite_note-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup> HST has revealed more than 150 of these within the nebula, and they are considered to be systems in the earliest stages of <a href="/wiki/Solar_system_formation" class="mw-redirect" title="Solar system formation">solar system formation</a>. The sheer numbers of them have been used as evidence that the formation of planetary systems is fairly common in the <a href="/wiki/Universe" title="Universe">universe</a>. </p><p><a href="/wiki/Stellar_evolution" title="Stellar evolution">Stars form</a> when clumps of <a href="/wiki/Hydrogen" title="Hydrogen">hydrogen</a> and other gases in an <a href="/wiki/H_II_region" title="H II region">H II region</a> contract under their own gravity. As the gas collapses, the central clump grows stronger and the gas heats to extreme temperatures by converting <a href="/wiki/Gravitational_potential_energy" class="mw-redirect" title="Gravitational potential energy">gravitational potential energy</a> to <a href="/wiki/Thermal_energy" title="Thermal energy">thermal energy</a>. If the temperature gets high enough, <a href="/wiki/Nuclear_fusion" title="Nuclear fusion">nuclear fusion</a> will ignite and form a <a href="/wiki/Protostar" title="Protostar">protostar</a>. The protostar is 'born' when it begins to emit enough radiative energy to balance out its gravity and halt <a href="/wiki/Gravitational_collapse" title="Gravitational collapse">gravitational collapse</a>. </p><p>Typically, a cloud of material remains a substantial distance from the star before the fusion reaction ignites. This remnant cloud is the protostar's protoplanetary disk, where planets may form. Recent <a href="/wiki/Infrared" title="Infrared">infrared</a> observations show that dust grains in these protoplanetary disks are growing, beginning on the path towards forming <a href="/wiki/Planetesimal" title="Planetesimal">planetesimals</a>.<sup id="cite_ref-46" class="reference"><a href="#cite_note-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> </p><p>Once the protostar enters into its <a href="/wiki/Main_sequence" title="Main sequence">main sequence</a> phase, it is classified as a star. Even though most planetary disks can form planets, observations show that intense stellar radiation should have destroyed any proplyds that formed near the Trapezium group, if the group is as old as the low mass stars in the cluster.<sup id="cite_ref-salisbury_30-1" class="reference"><a href="#cite_note-salisbury-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> Since proplyds are found very close to the Trapezium group, it can be argued that those stars are much younger than the rest of the cluster members.<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1041539562"><sup class="citation nobold" id="ref_Cnone"><a href="#endnote_Cnone">[c]</a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Stellar_wind_and_effects">Stellar wind and effects</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=6" title="Edit section: Stellar wind and effects"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Once formed, the stars within the nebula emit a stream of charged particles known as a <a href="/wiki/Stellar_wind" title="Stellar wind">stellar wind</a>. <a href="/wiki/OB_star" title="OB star">Massive stars</a> and <a href="/wiki/T_Tauri_star" title="T Tauri star">young stars</a> have much stronger stellar winds than the <a href="/wiki/Sun" title="Sun">Sun</a>.<sup id="cite_ref-47" class="reference"><a href="#cite_note-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup> The wind forms shock waves or hydrodynamical instabilities when it encounters the gas in the nebula, which then shapes the gas clouds. The shock waves from stellar wind also play a large part in stellar formation by compacting the gas clouds, creating density inhomogeneities that lead to gravitational collapse of the cloud. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Ripples.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Ripples.png/220px-Ripples.png" decoding="async" width="220" height="121" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Ripples.png/330px-Ripples.png 1.5x, //upload.wikimedia.org/wikipedia/commons/a/a3/Ripples.png 2x" data-file-width="341" data-file-height="188" /></a><figcaption> View of the ripples (<a href="/wiki/Kelvin%E2%80%93Helmholtz_instability" title="Kelvin–Helmholtz instability">Kelvin–Helmholtz instability</a>) formed by the action of stellar winds on the cloud.</figcaption></figure> <p>There are three different kinds of shocks in the Orion Nebula. Many are featured in <a href="/wiki/Herbig%E2%80%93Haro_objects" class="mw-redirect" title="Herbig–Haro objects">Herbig–Haro objects</a>:<sup id="cite_ref-48" class="reference"><a href="#cite_note-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> </p> <ul><li><a href="/wiki/Bow_shock" title="Bow shock">Bow shocks</a> are stationary and are formed when two particle streams collide with each other. They are present near the hottest stars in the nebula where the stellar wind speed is estimated to be thousands of kilometers per second and in the outer parts of the nebula where the speeds are tens of kilometers per second. Bow shocks can also form at the front end of stellar jets when the jet hits <a href="/wiki/Interstellar_medium" title="Interstellar medium">interstellar particles</a>.</li> <li>Jet-driven shocks are formed from jets of material sprouting off newborn <a href="/wiki/T_Tauri_stars" class="mw-redirect" title="T Tauri stars">T Tauri stars</a>. These narrow streams are traveling at hundreds of kilometers per second, and become shocks when they encounter relatively stationary gases.</li> <li>Warped shocks appear bow-like to an observer. They are produced when a jet-driven shock encounters gas moving in a cross-current.</li> <li>The interaction of the stellar wind with the surrounding cloud also forms "waves" which are believed to be due to the hydrodynamical <a href="/wiki/Kelvin-Helmholtz_instability" class="mw-redirect" title="Kelvin-Helmholtz instability">Kelvin-Helmholtz instability</a>.<sup id="cite_ref-49" class="reference"><a href="#cite_note-49"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup></li></ul> <p>The dynamic gas motions in M42 are complex, but are trending out through the opening in the bay and toward the Earth.<sup id="cite_ref-Balick_38-2" class="reference"><a href="#cite_note-Balick-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> The large neutral area behind the ionized region is currently contracting under its own gravity. </p><p>There are also <a href="/wiki/Supersonic" class="mw-redirect" title="Supersonic">supersonic</a> "bullets" of gas piercing the hydrogen clouds of the Orion Nebula. Each bullet is ten times the diameter of <a href="/wiki/Pluto" title="Pluto">Pluto</a>'s orbit and tipped with iron atoms glowing in the infrared. They were probably formed one thousand years earlier from an unknown violent event.<sup id="cite_ref-50" class="reference"><a href="#cite_note-50"><span class="cite-bracket">[</span>50<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Evolution">Evolution</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=7" title="Edit section: Evolution"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Orion.nebula.arp.750pix.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Orion.nebula.arp.750pix.jpg/220px-Orion.nebula.arp.750pix.jpg" decoding="async" width="220" height="237" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Orion.nebula.arp.750pix.jpg/330px-Orion.nebula.arp.750pix.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Orion.nebula.arp.750pix.jpg/440px-Orion.nebula.arp.750pix.jpg 2x" data-file-width="2730" data-file-height="2940" /></a><figcaption>Panoramic image of the center of the nebula, taken by the Hubble Telescope. This view is about 2.5 light years across. The Trapezium is at center left.</figcaption></figure> <p><a href="/wiki/Interstellar_cloud" title="Interstellar cloud">Interstellar clouds</a> like the Orion Nebula are found throughout <a href="/wiki/Galaxy" title="Galaxy">galaxies</a> such as the <a href="/wiki/Milky_Way" title="Milky Way">Milky Way</a>. They begin as gravitationally bound blobs of cold, neutral hydrogen, intermixed with traces of other elements. The cloud can contain hundreds of thousands of <a href="/wiki/Solar_mass" title="Solar mass">solar masses</a> and extend for hundreds of light years. The tiny force of gravity that could compel the cloud to collapse is counterbalanced by the very faint pressure of the gas in the cloud. </p><p>Whether due to collisions with a spiral arm, or through the shock wave emitted from <a href="/wiki/Supernova" title="Supernova">supernovae</a>, the atoms are precipitated into heavier molecules and the result is a molecular cloud. This presages the formation of stars within the cloud, usually thought to be within a period of 10–30 million years, as regions pass the <a href="/wiki/Jeans_mass" class="mw-redirect" title="Jeans mass">Jeans mass</a> and the destabilized volumes collapse into disks. The disk concentrates at the core to form a star, which may be surrounded by a protoplanetary disk. This is the current stage of evolution of the nebula, with additional stars still forming from the collapsing molecular cloud. The youngest and brightest stars we now see in the Orion Nebula are thought to be less than 300,000 years old,<sup id="cite_ref-51" class="reference"><a href="#cite_note-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> and the brightest may be only 10,000 years in age. Some of these collapsing stars can be particularly massive, and can emit large quantities of ionizing <a href="/wiki/Ultraviolet" title="Ultraviolet">ultraviolet</a> radiation. An example of this is seen with the Trapezium cluster. Over time the ultraviolet light from the massive stars at the center of the nebula will push away the surrounding gas and dust in a process called <a href="/wiki/Photoevaporation" title="Photoevaporation">photoevaporation</a>. This process is responsible for creating the interior cavity of the nebula, allowing the stars at the core to be viewed from Earth.<sup id="cite_ref-successor_8-1" class="reference"><a href="#cite_note-successor-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The largest of these stars have short life spans and will evolve to become supernovae. </p><p>Within about 100,000 years, most of the gas and dust will be ejected. The remains will form a young open cluster, a cluster of bright, young stars surrounded by wispy filaments from the former cloud.<sup id="cite_ref-52" class="reference"><a href="#cite_note-52"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup> </p> <div style="clear:both;" class=""></div> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=8" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col"> <ul><li><a href="/wiki/Barnard%27s_Loop" title="Barnard's Loop">Barnard's Loop</a></li> <li><a href="/wiki/Kleinmann%E2%80%93Low_Nebula" title="Kleinmann–Low Nebula">Kleinmann–Low Nebula</a></li> <li><a href="/wiki/Flame_Nebula" title="Flame Nebula">Flame Nebula</a> (NGC 2024)</li> <li><a href="/wiki/Horsehead_Nebula" title="Horsehead Nebula">Horsehead Nebula</a></li> <li><i><a href="/wiki/Hubble_3D" class="mw-redirect" title="Hubble 3D">Hubble 3D</a></i> (2010), an IMAX film with an elaborate CGI fly-through of the Orion Nebula</li> <li><a href="/wiki/List_of_diffuse_nebulae" title="List of diffuse nebulae">List of diffuse nebulae</a></li> <li><a href="/wiki/List_of_Messier_objects" class="mw-redirect" title="List of Messier objects">List of Messier objects</a></li> <li><a href="/wiki/Messier_43" title="Messier 43">Messier 43</a>, which is part of the Orion Nebula</li> <li><a href="/wiki/Messier_78" title="Messier 78">Messier 78</a>, a reflection nebula</li> <li><a href="/wiki/New_General_Catalogue" title="New General Catalogue">New General Catalogue</a></li> <li><a href="/wiki/Orion_correlation_theory" title="Orion correlation theory">Orion correlation theory</a></li> <li><a href="/wiki/Orion_molecular_cloud_complex" title="Orion molecular cloud complex">Orion molecular cloud complex</a></li> <li><a href="/wiki/Orion_OB1" title="Orion OB1">Orion OB1</a></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=9" title="Edit section: Notes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ol type="a"> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1041539562"><span class="citation wikicite" id="endnote_Anone"><a href="#ref_Anone"><b><sup>^</sup></b></a></span> 1,270 × tan( 66′ / 2 ) = 12 ly. radius</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1041539562"><span class="citation wikicite" id="endnote_Bnone"><a href="#ref_Bnone"><b><sup>^</sup></b></a></span> From temperate zones in the Northern Hemisphere, the nebula appears below the Belt of Orion; from temperate zones in the Southern Hemisphere the nebula appears above the Belt.</li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1041539562"><span class="citation wikicite" id="endnote_Cnone"><a href="#ref_Cnone"><b><sup>^</sup></b></a></span> C. Robert O'Dell commented about this Wikipedia article, "The only egregious error is the last sentence in the Stellar Formation section. It should actually read 'Even though most planetary disks can form planets, observations show that intense stellar radiation should have destroyed any proplyds that formed near the Trapezium group, if the group is as old as the low mass stars in the cluster. Since proplyds are found very close to the Trapezium group, it can be argued that those stars are much younger than the rest of the cluster members.'"</li> </ol> </div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=10" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-simbad-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-simbad_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-simbad_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+7538">"NGC 7538"</a>. <i><a href="/wiki/SIMBAD" title="SIMBAD">SIMBAD</a></i>. <a href="/wiki/Centre_de_donn%C3%A9es_astronomiques_de_Strasbourg" title="Centre de données astronomiques de Strasbourg">Centre de données astronomiques de Strasbourg</a><span class="reference-accessdate">. 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(October 1987). <a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F165648">"Solar System--sized Condensations in the Orion Nebula"</a>. <i>Astrophysical Journal</i>. <b>321</b>: 516. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1987ApJ...321..516C">1987ApJ...321..516C</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F165648">10.1086/165648</a></span>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0004-637X">0004-637X</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astrophysical+Journal&rft.atitle=Solar+System--sized+Condensations+in+the+Orion+Nebula&rft.volume=321&rft.pages=516&rft.date=1987-10&rft.issn=0004-637X&rft_id=info%3Adoi%2F10.1086%2F165648&rft_id=info%3Abibcode%2F1987ApJ...321..516C&rft.aulast=Churchwell&rft.aufirst=E.&rft.au=Felli%2C+M.&rft.au=Wood%2C+D.+O.+S.&rft.au=Massi%2C+M.&rft_id=https%3A%2F%2Fdoi.org%2F10.1086%252F165648&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrion+Nebula" class="Z3988"></span></span> </li> <li id="cite_note-44"><span class="mw-cite-backlink"><b><a href="#cite_ref-44">^</a></b></span> <span class="reference-text"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMcCaughreanO'dell1996" class="citation journal cs1">McCaughrean, Mark J.; et al. (1996). <a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F117934">"Direct Imaging of Circumstellar Disks in the Orion Nebula"</a>. <i><a href="/wiki/Astronomical_Journal" class="mw-redirect" title="Astronomical Journal">Astronomical Journal</a></i>. <b>111</b>: 1977. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1996AJ....111.1977M">1996AJ....111.1977M</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F117934">10.1086/117934</a></span>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:122335780">122335780</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astronomical+Journal&rft.atitle=Direct+Imaging+of+Circumstellar+Disks+in+the+Orion+Nebula&rft.volume=111&rft.pages=1977&rft.date=1996&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A122335780%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1086%2F117934&rft_id=info%3Abibcode%2F1996AJ....111.1977M&rft.aulast=McCaughrean&rft.aufirst=Mark+J.&rft.au=O%27dell%2C+C.+Robert&rft_id=https%3A%2F%2Fdoi.org%2F10.1086%252F117934&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrion+Nebula" class="Z3988"></span></span> </li> <li id="cite_note-45"><span class="mw-cite-backlink"><b><a href="#cite_ref-45">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFO'dellWenHu1993" class="citation journal cs1">O'dell, C. R.; Wen, Zheng; Hu, Xihai (June 1993). <a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F172786">"Discovery of New Objects in the Orion Nebula on HST Images: Shocks, Compact Sources, and Protoplanetary Disks"</a>. <i>Astrophysical Journal</i>. <b>410</b>: 696. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/1993ApJ...410..696O">1993ApJ...410..696O</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F172786">10.1086/172786</a></span>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0004-637X">0004-637X</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astrophysical+Journal&rft.atitle=Discovery+of+New+Objects+in+the+Orion+Nebula+on+HST+Images%3A+Shocks%2C+Compact+Sources%2C+and+Protoplanetary+Disks&rft.volume=410&rft.pages=696&rft.date=1993-06&rft.issn=0004-637X&rft_id=info%3Adoi%2F10.1086%2F172786&rft_id=info%3Abibcode%2F1993ApJ...410..696O&rft.aulast=O%27dell&rft.aufirst=C.+R.&rft.au=Wen%2C+Zheng&rft.au=Hu%2C+Xihai&rft_id=https%3A%2F%2Fdoi.org%2F10.1086%252F172786&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrion+Nebula" class="Z3988"></span></span> </li> <li id="cite_note-46"><span class="mw-cite-backlink"><b><a href="#cite_ref-46">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFKassis,_Marc2006" class="citation journal cs1">Kassis, Marc; et al. (2006). <a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F498404">"Mid-Infrared Emission at Photodissociation Regions in the Orion Nebula"</a>. <i><a href="/wiki/Astrophysical_Journal" class="mw-redirect" title="Astrophysical Journal">Astrophysical Journal</a></i>. <b>637</b> (2): 823–837. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2006ApJ...637..823K">2006ApJ...637..823K</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F498404">10.1086/498404</a></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astrophysical+Journal&rft.atitle=Mid-Infrared+Emission+at+Photodissociation+Regions+in+the+Orion+Nebula&rft.volume=637&rft.issue=2&rft.pages=823-837&rft.date=2006&rft_id=info%3Adoi%2F10.1086%2F498404&rft_id=info%3Abibcode%2F2006ApJ...637..823K&rft.au=Kassis%2C+Marc&rft_id=https%3A%2F%2Fdoi.org%2F10.1086%252F498404&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrion+Nebula" class="Z3988"></span> See also the <a rel="nofollow" class="external text" href="http://www.keckobservatory.org/news/science/060109_orion/index.html">press release</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20061024081423/http://www.keckobservatory.org/news/science/060109_orion/index.html">Archived</a> October 24, 2006, at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></span> </li> <li id="cite_note-47"><span class="mw-cite-backlink"><b><a href="#cite_ref-47">^</a></b></span> <span class="reference-text">Ker Than, January 11, 2006, "<a rel="nofollow" class="external text" href="http://www.space.com/scienceastronomy/060111_orion_news.html">The Splendor of Orion: A Star Factory Unveiled</a>", Space.com</span> </li> <li id="cite_note-48"><span class="mw-cite-backlink"><b><a href="#cite_ref-48">^</a></b></span> <span class="reference-text">"<a rel="nofollow" class="external text" href="http://www.vanderbilt.edu/news/releases?id=23966">Mapping Orion's Winds</a>", January 16, 2006, <i>Vanderbilt News Service</i></span> </li> <li id="cite_note-49"><span class="mw-cite-backlink"><b><a href="#cite_ref-49">^</a></b></span> <span class="reference-text">Denise Chow. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130626131145/http://www.nbcnews.com/id/38757647">Young stars blamed for space cloud ripples</a>, <i><a href="/wiki/NBC_News" title="NBC News">NBC News</a></i></span> </li> <li id="cite_note-50"><span class="mw-cite-backlink"><b><a href="#cite_ref-50">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.gemini.edu/index.php?q=node/226">"Gemini's Laser Vision Reveals Striking New Details in Orion Nebula"</a>. <i>Gemini Observatory</i>. March 22, 2007<span class="reference-accessdate">. Retrieved <span class="nowrap">June 1,</span> 2010</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Gemini+Observatory&rft.atitle=Gemini%27s+Laser+Vision+Reveals+Striking+New+Details+in+Orion+Nebula&rft.date=2007-03-22&rft_id=http%3A%2F%2Fwww.gemini.edu%2Findex.php%3Fq%3Dnode%2F226&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrion+Nebula" class="Z3988"></span></span> </li> <li id="cite_note-51"><span class="mw-cite-backlink"><b><a href="#cite_ref-51">^</a></b></span> <span class="reference-text">"<a rel="nofollow" class="external text" href="http://archive.seds.org/hst/OrionFull.html">Detail of the Orion Nebula</a>", HST image and text.</span> </li> <li id="cite_note-52"><span class="mw-cite-backlink"><b><a href="#cite_ref-52">^</a></b></span> <span class="reference-text">Kroupa, P., Aarseth, S.J., Hurley, J. 2001, MNRAS, 321, 699, <a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/2001MNRAS.321..699K">"The formation of a bound star cluster: from the Orion nebula cluster to the Pleiades"</a></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Orion_Nebula&action=edit&section=11" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 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related to this article: <div style="margin-left: 10px;"><b><a href="https://en.wikisource.org/wiki/The_Great_Nebula_in_Orion" class="extiw" title="wikisource:The Great Nebula in Orion">The Great Nebula in Orion</a></b></div></div></div> </div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1235681985"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1237033735"><div class="side-box side-box-right plainlinks sistersitebox"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/38px-Wikisource-logo.svg.png" decoding="async" width="38" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/57px-Wikisource-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/76px-Wikisource-logo.svg.png 2x" data-file-width="410" data-file-height="430" /></span></span></div> <div class="side-box-text plainlist"><a href="/wiki/Wikisource" title="Wikisource">Wikisource</a> has original text related to this article: <div style="margin-left: 10px;"><b><a href="https://en.wikisource.org/wiki/Telescopic_Research_on_the_Nebula_of_Orion" class="extiw" title="wikisource:Telescopic Research on the Nebula of Orion">Telescopic Research on the Nebula of Orion</a></b></div></div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://collection.sciencemuseumgroup.org.uk/people/cp44411/andrew-anslie-common">Orion Nebula photographs taken by Andrew Ainslie Common in 1883, part of the London Science Museum's collection</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20130606055340/http://alienworlds.southwales.ac.uk/OrionNebula.html">Animated tour of the Orion Nebula</a> at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a> (archived June 6, 2013), University of South Wales</li> <li><a rel="nofollow" class="external text" href="http://chandra.harvard.edu/photo/2007/orion/">Orion Nebula observed by Chandra/HST</a></li> <li><a rel="nofollow" class="external text" href="http://www.gemini.edu/index.php?option=content&task=view&id=226">Orion Nebula observed by Gemini Observatory</a></li> <li><a rel="nofollow" class="external text" href="http://www.spacetelescope.org/images/archive/freesearch/orion+nebula/viewall/1">Orion Nebula at ESA/Hubble</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20090130091659/http://www.spacetelescope.org/images/archive/freesearch/orion+nebula/viewall/1">Archived</a> January 30, 2009, at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></li> <li><a rel="nofollow" class="external text" href="http://messier.seds.org/m/m042.html">Messier 42, SEDS Messier pages</a> and specifically <a rel="nofollow" class="external text" href="http://spider.seds.org/ngc/ngc.cgi?m42">NGC 1976</a>.</li> <li><a rel="nofollow" class="external text" href="http://hubblesite.org/newscenter/newsdesk/archive/releases/2006/01/image/a">January 2006 Hubble Space Telescope image of the Orion Nebula</a></li> <li><a rel="nofollow" class="external text" href="http://hubblesite.org/newscenter/newsdesk/archive/releases/2006/01/image/e">January 2006 Hubble Space Telescope image of the Trapezium cluster</a></li> <li><a rel="nofollow" class="external text" href="http://messier.seds.org/more/m042_hst2.html">Orion Nebula M42, Hubble Images</a></li> <li><a rel="nofollow" class="external text" href="http://spaceflightnow.com/news/n0101/19orion/">Remarkable new views captured of Orion Nebula</a>, SpaceFlight Now, 2001.</li> <li><a rel="nofollow" class="external text" href="http://www.nightskyinfo.com/archive/orion_nebula">NightSkyInfo.com – The Great Orion Nebula</a></li> <li><a href="/wiki/Astronomy_Picture_of_the_Day" title="Astronomy Picture of the Day">Astronomy Picture of the Day</a> <ul><li><a rel="nofollow" class="external text" href="https://apod.nasa.gov/apod/ap100410.html">Spitzer's Orion</a> 2010 April 10</li> <li><a rel="nofollow" class="external text" href="https://apod.nasa.gov/apod/ap091222.html">Planetary Systems Now Forming in Orion</a> 2009 December 22</li> <li><a rel="nofollow" class="external text" href="https://apod.nasa.gov/apod/ap081023.html">Great Orion Nebulae</a> 2008 October 23</li></ul></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGray,_MeghanSzymanek,_NikCrowther,_Paul" class="citation web cs1">Gray, Meghan; et al. <a rel="nofollow" class="external text" href="http://www.deepskyvideos.com/videos/messier/M42_orion_nebula.html">"M42 – Orion Nebula"</a>. <i>Deep Sky Videos</i>. <a href="/wiki/Brady_Haran" title="Brady Haran">Brady Haran</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Deep+Sky+Videos&rft.atitle=M42+%E2%80%93+Orion+Nebula&rft.au=Gray%2C+Meghan&rft.au=Szymanek%2C+Nik&rft.au=Crowther%2C+Paul&rft_id=http%3A%2F%2Fwww.deepskyvideos.com%2Fvideos%2Fmessier%2FM42_orion_nebula.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOrion+Nebula" class="Z3988"></span></li> <li class="mw-empty-elt"></li> <li>The Orion Nebula on <a href="/wiki/WikiSky" class="mw-redirect" title="WikiSky">WikiSky</a>: <a rel="nofollow" class="external text" href="http://www.wikisky.org/?object=Orion+Nebula&img_source=DSS2">DSS2</a>, <a rel="nofollow" class="external text" href="http://www.wikisky.org/?object=Orion+Nebula&img_source=SDSS">SDSS</a>, <a rel="nofollow" class="external text" href="http://www.wikisky.org/?object=Orion+Nebula&img_source=GALEX">GALEX</a>, <a rel="nofollow" class="external text" href="http://www.wikisky.org/?object=Orion+Nebula&img_source=IRAS">IRAS</a>, <a rel="nofollow" class="external text" href="http://www.wikisky.org/?object=Orion+Nebula&img_source=HALPHA">Hydrogen α</a>, <a rel="nofollow" class="external text" href="http://www.wikisky.org/?object=Orion+Nebula&img_source=RASS">X-Ray</a>, <a rel="nofollow" class="external text" href="http://www.wikisky.org/?object=Orion+Nebula&img_source=IMG_all">Astrophoto</a>, <a rel="nofollow" class="external text" href="http://www.wikisky.org/?object=Orion+Nebula">Sky Map</a>, <a rel="nofollow" class="external text" href="http://www.wikisky.org/starview?object=Orion+Nebula">Articles and images</a></li> <li><a rel="nofollow" class="external text" href="http://www.eso.org/public/unitedkingdom/news/eso1701/?lang">ESO: Hidden Secrets of Orion’s Clouds</a> incl. Photos and animations</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist 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.navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Messier_objects" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Messier_objects" title="Template:Messier objects"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Messier_objects" title="Template talk:Messier objects"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Messier_objects" title="Special:EditPage/Template:Messier objects"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Messier_objects" style="font-size:114%;margin:0 4em"><a href="/wiki/Messier_object" title="Messier object">Messier objects</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_Messier_objects" class="mw-redirect" title="List of Messier objects">List</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Crab_Nebula" title="Crab Nebula">M1</a></li> <li><a href="/wiki/Messier_2" title="Messier 2">M2</a></li> <li><a href="/wiki/Messier_3" title="Messier 3">M3</a></li> <li><a href="/wiki/Messier_4" title="Messier 4">M4</a></li> <li><a href="/wiki/Messier_5" title="Messier 5">M5</a></li> <li><a href="/wiki/Butterfly_Cluster" title="Butterfly Cluster">M6</a></li> <li><a href="/wiki/Messier_7" title="Messier 7">M7</a></li> <li><a href="/wiki/Lagoon_Nebula" title="Lagoon Nebula">M8</a></li> <li><a href="/wiki/Messier_9" title="Messier 9">M9</a></li> <li><a href="/wiki/Messier_10" title="Messier 10">M10</a></li> <li><a href="/wiki/Wild_Duck_Cluster" title="Wild Duck Cluster">M11</a></li> <li><a href="/wiki/Messier_12" title="Messier 12">M12</a></li> <li><a href="/wiki/Messier_13" title="Messier 13">M13</a></li> <li><a href="/wiki/Messier_14" title="Messier 14">M14</a></li> <li><a href="/wiki/Messier_15" title="Messier 15">M15</a></li> <li><a href="/wiki/Eagle_Nebula" title="Eagle Nebula">M16</a></li> <li><a href="/wiki/Omega_Nebula" title="Omega Nebula">M17</a></li> <li><a href="/wiki/Messier_18" title="Messier 18">M18</a></li> <li><a href="/wiki/Messier_19" title="Messier 19">M19</a></li> <li><a href="/wiki/Trifid_Nebula" title="Trifid Nebula">M20</a></li> <li><a href="/wiki/Messier_21" title="Messier 21">M21</a></li> <li><a href="/wiki/Messier_22" title="Messier 22">M22</a></li> <li><a href="/wiki/Messier_23" title="Messier 23">M23</a></li> <li><a href="/wiki/Small_Sagittarius_Star_Cloud" title="Small Sagittarius Star Cloud">M24</a></li> <li><a href="/wiki/Messier_25" title="Messier 25">M25</a></li> <li><a href="/wiki/Messier_26" title="Messier 26">M26</a></li> <li><a href="/wiki/Dumbbell_Nebula" title="Dumbbell Nebula">M27</a></li> <li><a href="/wiki/Messier_28" title="Messier 28">M28</a></li> <li><a href="/wiki/Messier_29" title="Messier 29">M29</a></li> <li><a href="/wiki/Messier_30" title="Messier 30">M30</a></li> <li><a href="/wiki/Andromeda_Galaxy" title="Andromeda Galaxy">M31</a></li> <li><a href="/wiki/Messier_32" title="Messier 32">M32</a></li> <li><a href="/wiki/Triangulum_Galaxy" title="Triangulum Galaxy">M33</a></li> <li><a href="/wiki/Messier_34" title="Messier 34">M34</a></li> <li><a href="/wiki/Messier_35" title="Messier 35">M35</a></li> <li><a href="/wiki/Messier_36" title="Messier 36">M36</a></li> <li><a href="/wiki/Messier_37" title="Messier 37">M37</a></li> <li><a href="/wiki/Messier_38" title="Messier 38">M38</a></li> <li><a href="/wiki/Messier_39" title="Messier 39">M39</a></li> <li><a href="/wiki/Winnecke_4" title="Winnecke 4">M40</a></li> <li><a href="/wiki/Messier_41" title="Messier 41">M41</a></li> <li><a class="mw-selflink selflink">M42</a></li> <li><a href="/wiki/Messier_43" title="Messier 43">M43</a></li> <li><a href="/wiki/Beehive_Cluster" title="Beehive Cluster">M44</a></li> <li><a href="/wiki/Pleiades" title="Pleiades">M45</a></li> <li><a href="/wiki/Messier_46" title="Messier 46">M46</a></li> <li><a href="/wiki/Messier_47" title="Messier 47">M47</a></li> <li><a href="/wiki/Messier_48" title="Messier 48">M48</a></li> <li><a href="/wiki/Messier_49" title="Messier 49">M49</a></li> <li><a href="/wiki/Messier_50" title="Messier 50">M50</a></li> <li><a href="/wiki/Whirlpool_Galaxy" title="Whirlpool Galaxy">M51</a></li> <li><a href="/wiki/Messier_52" title="Messier 52">M52</a></li> <li><a href="/wiki/Messier_53" title="Messier 53">M53</a></li> <li><a href="/wiki/Messier_54" title="Messier 54">M54</a></li> <li><a href="/wiki/Messier_55" title="Messier 55">M55</a></li> <li><a href="/wiki/Messier_56" title="Messier 56">M56</a></li> <li><a href="/wiki/Ring_Nebula" title="Ring Nebula">M57</a></li> <li><a href="/wiki/Messier_58" title="Messier 58">M58</a></li> <li><a href="/wiki/Messier_59" title="Messier 59">M59</a></li> <li><a href="/wiki/Messier_60" title="Messier 60">M60</a></li> <li><a href="/wiki/Messier_61" title="Messier 61">M61</a></li> <li><a href="/wiki/Messier_62" title="Messier 62">M62</a></li> <li><a href="/wiki/Messier_63" title="Messier 63">M63</a></li> <li><a href="/wiki/Black_Eye_Galaxy" title="Black Eye Galaxy">M64</a></li> <li><a href="/wiki/Messier_65" title="Messier 65">M65</a></li> <li><a href="/wiki/Messier_66" title="Messier 66">M66</a></li> <li><a href="/wiki/Messier_67" title="Messier 67">M67</a></li> <li><a href="/wiki/Messier_68" title="Messier 68">M68</a></li> <li><a href="/wiki/Messier_69" title="Messier 69">M69</a></li> <li><a href="/wiki/Messier_70" title="Messier 70">M70</a></li> <li><a href="/wiki/Messier_71" title="Messier 71">M71</a></li> <li><a href="/wiki/Messier_72" title="Messier 72">M72</a></li> <li><a href="/wiki/Messier_73" title="Messier 73">M73</a></li> <li><a href="/wiki/Messier_74" title="Messier 74">M74</a></li> <li><a href="/wiki/Messier_75" title="Messier 75">M75</a></li> <li><a href="/wiki/Little_Dumbbell_Nebula" title="Little Dumbbell Nebula">M76</a></li> <li><a href="/wiki/Messier_77" title="Messier 77">M77</a></li> <li><a href="/wiki/Messier_78" title="Messier 78">M78</a></li> <li><a href="/wiki/Messier_79" title="Messier 79">M79</a></li> <li><a href="/wiki/Messier_80" title="Messier 80">M80</a></li> <li><a href="/wiki/Messier_81" title="Messier 81">M81</a></li> <li><a href="/wiki/Messier_82" title="Messier 82">M82</a></li> <li><a href="/wiki/Messier_83" title="Messier 83">M83</a></li> <li><a href="/wiki/Messier_84" title="Messier 84">M84</a></li> <li><a href="/wiki/Messier_85" title="Messier 85">M85</a></li> <li><a href="/wiki/Messier_86" title="Messier 86">M86</a></li> <li><a href="/wiki/Messier_87" title="Messier 87">M87</a></li> <li><a href="/wiki/Messier_88" title="Messier 88">M88</a></li> <li><a href="/wiki/Messier_89" title="Messier 89">M89</a></li> <li><a href="/wiki/Messier_90" title="Messier 90">M90</a></li> <li><a href="/wiki/Messier_91" title="Messier 91">M91</a></li> <li><a href="/wiki/Messier_92" title="Messier 92">M92</a></li> <li><a href="/wiki/Messier_93" title="Messier 93">M93</a></li> <li><a href="/wiki/Messier_94" title="Messier 94">M94</a></li> <li><a href="/wiki/Messier_95" title="Messier 95">M95</a></li> <li><a href="/wiki/Messier_96" title="Messier 96">M96</a></li> <li><a href="/wiki/Owl_Nebula" title="Owl Nebula">M97</a></li> <li><a href="/wiki/Messier_98" title="Messier 98">M98</a></li> <li><a href="/wiki/Messier_99" title="Messier 99">M99</a></li> <li><a href="/wiki/Messier_100" title="Messier 100">M100</a></li> <li><a href="/wiki/Pinwheel_Galaxy" title="Pinwheel Galaxy">M101</a></li> <li><a href="/wiki/Messier_102" title="Messier 102">M102</a></li> <li><a href="/wiki/Messier_103" title="Messier 103">M103</a></li> <li>Added <ul><li><a href="/wiki/Sombrero_Galaxy" title="Sombrero Galaxy">M104</a></li> <li><a href="/wiki/Messier_105" title="Messier 105">M105</a></li> <li><a href="/wiki/Messier_106" title="Messier 106">M106</a></li> <li><a href="/wiki/Messier_107" title="Messier 107">M107</a></li> <li><a href="/wiki/Messier_108" title="Messier 108">M108</a></li> <li><a href="/wiki/Messier_109" title="Messier 109">M109</a></li> <li><a href="/wiki/Messier_110" title="Messier 110">M110</a></li></ul></li></ul> </div></td><td class="noviewer navbox-image" rowspan="2" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/Charles_Messier" title="Charles Messier"><img alt="Painting of Charles Messier, creator of the Messier catalog" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Charles_Messier.jpg/80px-Charles_Messier.jpg" decoding="async" width="80" height="101" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Charles_Messier.jpg/120px-Charles_Messier.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Charles_Messier.jpg/160px-Charles_Messier.jpg 2x" data-file-width="621" data-file-height="787" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">See also</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Caldwell_catalogue" title="Caldwell catalogue">Caldwell catalogue</a></li> <li><a href="/wiki/Catalogue_of_Nebulae_and_Clusters_of_Stars" title="Catalogue of Nebulae and Clusters of Stars">Catalogue of Nebulae and Clusters of Stars</a></li> <li><a href="/wiki/Herschel_400_Catalogue" title="Herschel 400 Catalogue">Herschel 400 Catalogue</a></li> <li><a href="/wiki/Index_Catalogue" class="mw-redirect" title="Index Catalogue">Index Catalogue</a></li> <li><a href="/wiki/New_General_Catalogue" title="New General Catalogue">New General Catalogue</a></li> <li><a href="/wiki/Revised_New_General_Catalogue" class="mw-redirect" title="Revised New General Catalogue">Revised New General Catalogue</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3" style="font-weight:bold;"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Messier_objects" title="Category:Messier objects">Category</a></li> <li><span class="noviewer" typeof="mw:File"><span title="Commons page"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/12px-Commons-logo.svg.png" decoding="async" width="12" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/24px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span> <a href="https://commons.wikimedia.org/wiki/Category:Messier_objects" class="extiw" title="commons:Category:Messier objects">Commons</a></li> <li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Symbol_portal_class.svg" class="mw-file-description" title="Portal"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/16px-Symbol_portal_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/23px-Symbol_portal_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/31px-Symbol_portal_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span> <a href="/wiki/Portal:Astronomy" title="Portal:Astronomy">Portal</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Sharpless_catalog" style="padding:3px"><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Sh_2_objects" title="Template:Sh 2 objects"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Sh_2_objects" title="Template talk:Sh 2 objects"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Sh_2_objects" title="Special:EditPage/Template:Sh 2 objects"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Sharpless_catalog" style="font-size:114%;margin:0 4em"><a href="/wiki/Sharpless_catalog" title="Sharpless catalog">Sharpless catalog</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Sh_2-1" title="Sh 2-1">Sh 2-1</a></li> <li><a href="/wiki/Sh_2-2" title="Sh 2-2">Sh 2-2</a></li> <li><a href="/wiki/RCW_120" title="RCW 120">Sh 2-3</a></li> <li><a href="/w/index.php?title=Sh_2-4&action=edit&redlink=1" class="new" title="Sh 2-4 (page does not exist)">Sh 2-4</a></li> <li><a href="/wiki/NGC_6357" title="NGC 6357">Sh 2-5</a></li> <li><a href="/wiki/NGC_6302" title="NGC 6302">Sh 2-6</a></li> <li><a href="/wiki/Sh_2-7" title="Sh 2-7">Sh 2-7</a></li> <li><a href="/wiki/NGC_6334" title="NGC 6334">Sh 2-8</a></li> <li><a href="/wiki/Sh_2-9" title="Sh 2-9">Sh 2-9</a></li> <li><a href="/wiki/Sh_2-10" title="Sh 2-10">Sh 2-10</a></li> <li><a href="/wiki/NGC_6357" title="NGC 6357">Sh 2-11</a></li> <li><a href="/w/index.php?title=Sh_2-12&action=edit&redlink=1" class="new" title="Sh 2-12 (page does not exist)">Sh 2-12</a></li> <li><a href="/w/index.php?title=Sh_2-13&action=edit&redlink=1" class="new" title="Sh 2-13 (page does not exist)">Sh 2-13</a></li> <li><a href="/w/index.php?title=Sh_2-14&action=edit&redlink=1" class="new" title="Sh 2-14 (page does not exist)">Sh 2-14</a></li> <li><a href="/w/index.php?title=Sh_2-15&action=edit&redlink=1" class="new" title="Sh 2-15 (page does not exist)">Sh 2-15</a></li> <li><a href="/w/index.php?title=Sh_2-16&action=edit&redlink=1" class="new" title="Sh 2-16 (page does not exist)">Sh 2-16</a></li> <li><a href="/w/index.php?title=Sh_2-17&action=edit&redlink=1" class="new" title="Sh 2-17 (page does not exist)">Sh 2-17</a></li> <li><a href="/w/index.php?title=Sh_2-18&action=edit&redlink=1" class="new" title="Sh 2-18 (page does not exist)">Sh 2-18</a></li> <li><a href="/w/index.php?title=Sh_2-19&action=edit&redlink=1" class="new" title="Sh 2-19 (page does not exist)">Sh 2-19</a></li> <li><a href="/w/index.php?title=Sh_2-20&action=edit&redlink=1" class="new" title="Sh 2-20 (page does not exist)">Sh 2-20</a></li> <li><a href="/w/index.php?title=Sh_2-21&action=edit&redlink=1" class="new" title="Sh 2-21 (page does not exist)">Sh 2-21</a></li> <li><a href="/w/index.php?title=Sh_2-22&action=edit&redlink=1" class="new" title="Sh 2-22 (page does not exist)">Sh 2-22</a></li> <li><a href="/w/index.php?title=Sh_2-23&action=edit&redlink=1" class="new" title="Sh 2-23 (page does not exist)">Sh 2-23</a></li> <li><a href="/w/index.php?title=Sh_2-24&action=edit&redlink=1" class="new" title="Sh 2-24 (page does not exist)">Sh 2-24</a></li> <li><a href="/wiki/Lagoon_Nebula" title="Lagoon Nebula">Sh 2-25</a></li> <li><a href="/w/index.php?title=Sh_2-26&action=edit&redlink=1" class="new" title="Sh 2-26 (page does not exist)">Sh 2-26</a></li> <li><a href="/w/index.php?title=Sh_2-27&action=edit&redlink=1" class="new" title="Sh 2-27 (page does not exist)">Sh 2-27</a></li> <li><a href="/w/index.php?title=Sh_2-28&action=edit&redlink=1" class="new" title="Sh 2-28 (page does not exist)">Sh 2-28</a></li> <li><a href="/w/index.php?title=Sh_2-29&action=edit&redlink=1" class="new" title="Sh 2-29 (page does not exist)">Sh 2-29</a></li> <li><a href="/wiki/Trifid_Nebula" title="Trifid Nebula">Sh 2-30</a></li> <li><a href="/w/index.php?title=Sh_2-31&action=edit&redlink=1" class="new" title="Sh 2-31 (page does not exist)">Sh 2-31</a></li> <li><a href="/w/index.php?title=Sh_2-32&action=edit&redlink=1" class="new" title="Sh 2-32 (page does not exist)">Sh 2-32</a></li> <li><a href="/w/index.php?title=Sh_2-33&action=edit&redlink=1" class="new" title="Sh 2-33 (page does not exist)">Sh 2-33</a></li> <li><a href="/w/index.php?title=Sh_2-34&action=edit&redlink=1" class="new" title="Sh 2-34 (page does not exist)">Sh 2-34</a></li> <li><a href="/w/index.php?title=Sh_2-35&action=edit&redlink=1" class="new" title="Sh 2-35 (page does not exist)">Sh 2-35</a></li> <li><a href="/w/index.php?title=Sh_2-36&action=edit&redlink=1" class="new" title="Sh 2-36 (page does not exist)">Sh 2-36</a></li> <li><a href="/w/index.php?title=IC_1284&action=edit&redlink=1" class="new" title="IC 1284 (page does not exist)">Sh 2-37</a></li> <li><a href="/w/index.php?title=Sh_2-38&action=edit&redlink=1" class="new" title="Sh 2-38 (page does not exist)">Sh 2-38</a></li> <li><a href="/w/index.php?title=Sh_2-39&action=edit&redlink=1" class="new" title="Sh 2-39 (page does not exist)">Sh 2-39</a></li> <li><a href="/w/index.php?title=Sh_2-40&action=edit&redlink=1" class="new" title="Sh 2-40 (page does not exist)">Sh 2-40</a></li> <li><a href="/w/index.php?title=Sh_2-41&action=edit&redlink=1" class="new" title="Sh 2-41 (page does not exist)">Sh 2-41</a></li> <li><a href="/w/index.php?title=Sh_2-42&action=edit&redlink=1" class="new" title="Sh 2-42 (page does not exist)">Sh 2-42</a></li> <li><a href="/w/index.php?title=Sh_2-43&action=edit&redlink=1" class="new" title="Sh 2-43 (page does not exist)">Sh 2-43</a></li> <li><a href="/w/index.php?title=Sh_2-44&action=edit&redlink=1" class="new" title="Sh 2-44 (page does not exist)">Sh 2-44</a></li> <li><a href="/wiki/Omega_Nebula" title="Omega Nebula">Sh 2-45</a></li> <li><a href="/w/index.php?title=Sh_2-46&action=edit&redlink=1" class="new" title="Sh 2-46 (page does not exist)">Sh 2-46</a></li> <li><a href="/w/index.php?title=Sh_2-47&action=edit&redlink=1" class="new" title="Sh 2-47 (page does not exist)">Sh 2-47</a></li> <li><a href="/w/index.php?title=Sh_2-48&action=edit&redlink=1" class="new" title="Sh 2-48 (page does not exist)">Sh 2-48</a></li> <li><a href="/wiki/Eagle_Nebula" title="Eagle Nebula">Sh 2-49</a></li> <li><a href="/w/index.php?title=Sh_2-50&action=edit&redlink=1" class="new" title="Sh 2-50 (page does not exist)">Sh 2-50</a></li> <li><a href="/w/index.php?title=Sh_2-51&action=edit&redlink=1" class="new" title="Sh 2-51 (page does not exist)">Sh 2-51</a></li> <li><a href="/w/index.php?title=Abell_65&action=edit&redlink=1" class="new" title="Abell 65 (page does not exist)">Sh 2-52</a></li> <li><a href="/w/index.php?title=Sh_2-53&action=edit&redlink=1" class="new" title="Sh 2-53 (page does not exist)">Sh 2-53</a></li> <li><a href="/wiki/Sh_2-54" title="Sh 2-54">Sh 2-54</a></li> <li><a href="/w/index.php?title=Sh_2-55&action=edit&redlink=1" class="new" title="Sh 2-55 (page does not exist)">Sh 2-55</a></li> <li><a href="/w/index.php?title=Sh_2-56&action=edit&redlink=1" class="new" title="Sh 2-56 (page does not exist)">Sh 2-56</a></li> <li><a href="/w/index.php?title=Sh_2-57&action=edit&redlink=1" class="new" title="Sh 2-57 (page does not exist)">Sh 2-57</a></li> <li><a href="/w/index.php?title=Sh_2-58&action=edit&redlink=1" class="new" title="Sh 2-58 (page does not exist)">Sh 2-58</a></li> <li><a href="/w/index.php?title=Sh_2-59&action=edit&redlink=1" class="new" title="Sh 2-59 (page does not exist)">Sh 2-59</a></li> <li><a href="/w/index.php?title=Sh_2-60&action=edit&redlink=1" class="new" title="Sh 2-60 (page does not exist)">Sh 2-60</a></li> <li><a href="/w/index.php?title=Sh_2-61&action=edit&redlink=1" class="new" title="Sh 2-61 (page does not exist)">Sh 2-61</a></li> <li><a href="/w/index.php?title=Sh_2-62&action=edit&redlink=1" class="new" title="Sh 2-62 (page does not exist)">Sh 2-62</a></li> <li><a href="/w/index.php?title=Sh_2-63&action=edit&redlink=1" class="new" title="Sh 2-63 (page does not exist)">Sh 2-63</a></li> <li><a href="/wiki/Westerhout_40" title="Westerhout 40">Sh 2-64</a></li> <li><a href="/w/index.php?title=Sh_2-65&action=edit&redlink=1" class="new" title="Sh 2-65 (page does not exist)">Sh 2-65</a></li> <li><a href="/w/index.php?title=Sh_2-66&action=edit&redlink=1" class="new" title="Sh 2-66 (page does not exist)">Sh 2-66</a></li> <li><a href="/w/index.php?title=Sh_2-67&action=edit&redlink=1" class="new" title="Sh 2-67 (page does not exist)">Sh 2-67</a></li> <li><a href="/w/index.php?title=Sh_2-68&action=edit&redlink=1" class="new" title="Sh 2-68 (page does not exist)">Sh 2-68</a></li> <li><a href="/w/index.php?title=Sh_2-69&action=edit&redlink=1" class="new" title="Sh 2-69 (page does not exist)">Sh 2-69</a></li> <li><a href="/w/index.php?title=Sh_2-70&action=edit&redlink=1" class="new" title="Sh 2-70 (page does not exist)">Sh 2-70</a></li> <li><a href="/w/index.php?title=Sh_2-71&action=edit&redlink=1" class="new" title="Sh 2-71 (page does not exist)">Sh 2-71</a></li> <li><a href="/w/index.php?title=Sh_2-72&action=edit&redlink=1" class="new" title="Sh 2-72 (page does not exist)">Sh 2-72</a></li> <li><a href="/w/index.php?title=Sh_2-73&action=edit&redlink=1" class="new" title="Sh 2-73 (page does not exist)">Sh 2-73</a></li> <li><a href="/w/index.php?title=Sh_2-74&action=edit&redlink=1" class="new" title="Sh 2-74 (page does not exist)">Sh 2-74</a></li> <li><a href="/w/index.php?title=Sh_2-75&action=edit&redlink=1" class="new" title="Sh 2-75 (page does not exist)">Sh 2-75</a></li> <li><a href="/w/index.php?title=Sh_2-76&action=edit&redlink=1" class="new" title="Sh 2-76 (page does not exist)">Sh 2-76</a></li> <li><a href="/w/index.php?title=Sh_2-77&action=edit&redlink=1" class="new" title="Sh 2-77 (page does not exist)">Sh 2-77</a></li> <li><a href="/w/index.php?title=Sh_2-78&action=edit&redlink=1" class="new" title="Sh 2-78 (page does not exist)">Sh 2-78</a></li> <li><a href="/w/index.php?title=Sh_2-79&action=edit&redlink=1" class="new" title="Sh 2-79 (page does not exist)">Sh 2-79</a></li> <li><a href="/w/index.php?title=Sh_2-80&action=edit&redlink=1" class="new" title="Sh 2-80 (page does not exist)">Sh 2-80</a></li> <li><a href="/w/index.php?title=Sh_2-81&action=edit&redlink=1" class="new" title="Sh 2-81 (page does not exist)">Sh 2-81</a></li> <li><a href="/w/index.php?title=Sh_2-82&action=edit&redlink=1" class="new" title="Sh 2-82 (page does not exist)">Sh 2-82</a></li> <li><a href="/w/index.php?title=Sh_2-83&action=edit&redlink=1" class="new" title="Sh 2-83 (page does not exist)">Sh 2-83</a></li> <li><a href="/w/index.php?title=Sh_2-84&action=edit&redlink=1" class="new" title="Sh 2-84 (page does not exist)">Sh 2-84</a></li> <li><a href="/w/index.php?title=Sh_2-85&action=edit&redlink=1" class="new" title="Sh 2-85 (page does not exist)">Sh 2-85</a></li> <li><a href="/wiki/NGC_6820_and_NGC_6823" title="NGC 6820 and NGC 6823">Sh 2-86</a></li> <li><a href="/w/index.php?title=Sh_2-87&action=edit&redlink=1" class="new" title="Sh 2-87 (page does not exist)">Sh 2-87</a></li> <li><a href="/wiki/Sh_2-88" title="Sh 2-88">Sh 2-88</a></li> <li><a href="/w/index.php?title=Sh_2-89&action=edit&redlink=1" class="new" title="Sh 2-89 (page does not exist)">Sh 2-89</a></li> <li><a href="/w/index.php?title=Sh_2-90&action=edit&redlink=1" class="new" title="Sh 2-90 (page does not exist)">Sh 2-90</a></li> <li><a href="/w/index.php?title=Sh_2-91&action=edit&redlink=1" class="new" title="Sh 2-91 (page does not exist)">Sh 2-91</a></li> <li><a href="/w/index.php?title=Sh_2-92&action=edit&redlink=1" class="new" title="Sh 2-92 (page does not exist)">Sh 2-92</a></li> <li><a href="/w/index.php?title=Sh_2-93&action=edit&redlink=1" class="new" title="Sh 2-93 (page does not exist)">Sh 2-93</a></li> <li><a href="/w/index.php?title=Sh_2-94&action=edit&redlink=1" class="new" title="Sh 2-94 (page does not exist)">Sh 2-94</a></li> <li><a href="/w/index.php?title=Sh_2-95&action=edit&redlink=1" class="new" title="Sh 2-95 (page does not exist)">Sh 2-95</a></li> <li><a href="/w/index.php?title=Sh_2-96&action=edit&redlink=1" class="new" title="Sh 2-96 (page does not exist)">Sh 2-96</a></li> <li><a href="/w/index.php?title=Sh_2-97&action=edit&redlink=1" class="new" title="Sh 2-97 (page does not exist)">Sh 2-97</a></li> <li><a href="/w/index.php?title=Sh_2-98&action=edit&redlink=1" class="new" title="Sh 2-98 (page does not exist)">Sh 2-98</a></li> <li><a href="/w/index.php?title=Sh_2-99&action=edit&redlink=1" class="new" title="Sh 2-99 (page does not exist)">Sh 2-99</a></li> <li><a href="/w/index.php?title=Sh_2-100&action=edit&redlink=1" class="new" title="Sh 2-100 (page does not exist)">Sh 2-100</a></li> <li><a href="/wiki/Sh_2-101" title="Sh 2-101">Sh 2-101</a></li> <li><a href="/w/index.php?title=Sh_2-102&action=edit&redlink=1" class="new" title="Sh 2-102 (page does not exist)">Sh 2-102</a></li> <li><a href="/wiki/Cygnus_Loop" title="Cygnus Loop">Sh 2-103</a></li> <li><a href="/w/index.php?title=Sh_2-104&action=edit&redlink=1" class="new" title="Sh 2-104 (page does not exist)">Sh 2-104</a></li> <li><a href="/wiki/Crescent_Nebula" title="Crescent Nebula">Sh 2-105</a></li> <li><a href="/wiki/Sh_2-106" title="Sh 2-106">Sh 2-106</a></li> <li><a href="/w/index.php?title=Sh_2-107&action=edit&redlink=1" class="new" title="Sh 2-107 (page does not exist)">Sh 2-107</a></li> <li><a href="/wiki/Sadr_Region" title="Sadr Region">Sh 2-108</a></li> <li><a href="/w/index.php?title=Sh_2-109&action=edit&redlink=1" class="new" title="Sh 2-109 (page does not exist)">Sh 2-109</a></li> <li><a href="/w/index.php?title=Sh_2-110&action=edit&redlink=1" class="new" title="Sh 2-110 (page does not exist)">Sh 2-110</a></li> <li><a href="/w/index.php?title=Sh_2-111&action=edit&redlink=1" class="new" title="Sh 2-111 (page does not exist)">Sh 2-111</a></li> <li><a href="/w/index.php?title=Sh_2-112&action=edit&redlink=1" class="new" title="Sh 2-112 (page does not exist)">Sh 2-112</a></li> <li><a href="/wiki/Sh_2-113" title="Sh 2-113">Sh 2-113</a></li> <li><a href="/w/index.php?title=Sh_2-114&action=edit&redlink=1" class="new" title="Sh 2-114 (page does not exist)">Sh 2-114</a></li> <li><a href="/w/index.php?title=Sh_2-115&action=edit&redlink=1" class="new" title="Sh 2-115 (page does not exist)">Sh 2-115</a></li> <li><a href="/w/index.php?title=Sh_2-116&action=edit&redlink=1" class="new" title="Sh 2-116 (page does not exist)">Sh 2-116</a></li> <li><a href="/wiki/North_America_Nebula" title="North America Nebula">Sh 2-117</a></li> <li><a href="/w/index.php?title=Sh_2-118&action=edit&redlink=1" class="new" title="Sh 2-118 (page does not exist)">Sh 2-118</a></li> <li><a href="/w/index.php?title=Sh_2-119&action=edit&redlink=1" class="new" title="Sh 2-119 (page does not exist)">Sh 2-119</a></li> <li><a href="/w/index.php?title=Sh_2-120&action=edit&redlink=1" class="new" title="Sh 2-120 (page does not exist)">Sh 2-120</a></li> <li><a href="/w/index.php?title=Sh_2-121&action=edit&redlink=1" class="new" title="Sh 2-121 (page does not exist)">Sh 2-121</a></li> <li><a href="/w/index.php?title=Sh_2-122&action=edit&redlink=1" class="new" title="Sh 2-122 (page does not exist)">Sh 2-122</a></li> <li><a href="/w/index.php?title=Sh_2-123&action=edit&redlink=1" class="new" title="Sh 2-123 (page does not exist)">Sh 2-123</a></li> <li><a href="/w/index.php?title=Sh_2-124&action=edit&redlink=1" class="new" title="Sh 2-124 (page does not exist)">Sh 2-124</a></li> <li><a href="/wiki/IC_5146" title="IC 5146">Sh 2-125</a></li> <li><a href="/w/index.php?title=Sh_2-126&action=edit&redlink=1" class="new" title="Sh 2-126 (page does not exist)">Sh 2-126</a></li> <li><a href="/w/index.php?title=Sh_2-127&action=edit&redlink=1" class="new" title="Sh 2-127 (page does not exist)">Sh 2-127</a></li> <li><a href="/w/index.php?title=Sh_2-128&action=edit&redlink=1" class="new" title="Sh 2-128 (page does not exist)">Sh 2-128</a></li> <li><a href="/w/index.php?title=Sh_2-129&action=edit&redlink=1" class="new" title="Sh 2-129 (page does not exist)">Sh 2-129</a></li> <li><a href="/w/index.php?title=Sh_2-130&action=edit&redlink=1" class="new" title="Sh 2-130 (page does not exist)">Sh 2-130</a></li> <li><a href="/wiki/Elephant%27s_Trunk_Nebula" title="Elephant's Trunk Nebula">Sh 2-131</a></li> <li><a href="/w/index.php?title=Sh_2-132&action=edit&redlink=1" class="new" title="Sh 2-132 (page does not exist)">Sh 2-132</a></li> <li><a href="/w/index.php?title=Sh_2-133&action=edit&redlink=1" class="new" title="Sh 2-133 (page does not exist)">Sh 2-133</a></li> <li><a href="/w/index.php?title=Sh_2-134&action=edit&redlink=1" class="new" title="Sh 2-134 (page does not exist)">Sh 2-134</a></li> <li><a href="/w/index.php?title=Sh_2-135&action=edit&redlink=1" class="new" title="Sh 2-135 (page does not exist)">Sh 2-135</a></li> <li><a href="/wiki/Ghost_Nebula" title="Ghost Nebula">Sh 2-136</a></li> <li><a href="/w/index.php?title=Sh_2-137&action=edit&redlink=1" class="new" title="Sh 2-137 (page does not exist)">Sh 2-137</a></li> <li><a href="/w/index.php?title=Sh_2-138&action=edit&redlink=1" class="new" title="Sh 2-138 (page does not exist)">Sh 2-138</a></li> <li><a href="/w/index.php?title=Sh_2-139&action=edit&redlink=1" class="new" title="Sh 2-139 (page does not exist)">Sh 2-139</a></li> <li><a href="/wiki/Sh_2-140" title="Sh 2-140">Sh 2-140</a></li> <li><a href="/w/index.php?title=Sh_2-141&action=edit&redlink=1" class="new" title="Sh 2-141 (page does not exist)">Sh 2-141</a></li> <li><a href="/wiki/NGC_7380" title="NGC 7380">Sh 2-142</a></li> <li><a href="/w/index.php?title=Sh_2-143&action=edit&redlink=1" class="new" title="Sh 2-143 (page does not exist)">Sh 2-143</a></li> <li><a href="/w/index.php?title=Sh_2-144&action=edit&redlink=1" class="new" title="Sh 2-144 (page does not exist)">Sh 2-144</a></li> <li><a href="/w/index.php?title=Sh_2-145&action=edit&redlink=1" class="new" title="Sh 2-145 (page does not exist)">Sh 2-145</a></li> <li><a href="/w/index.php?title=Sh_2-146&action=edit&redlink=1" class="new" title="Sh 2-146 (page does not exist)">Sh 2-146</a></li> <li><a href="/w/index.php?title=Sh_2-147&action=edit&redlink=1" class="new" title="Sh 2-147 (page does not exist)">Sh 2-147</a></li> <li><a href="/w/index.php?title=Sh_2-148&action=edit&redlink=1" class="new" title="Sh 2-148 (page does not exist)">Sh 2-148</a></li> <li><a href="/w/index.php?title=Sh_2-149&action=edit&redlink=1" class="new" title="Sh 2-149 (page does not exist)">Sh 2-149</a></li> <li><a href="/w/index.php?title=Sh_2-150&action=edit&redlink=1" class="new" title="Sh 2-150 (page does not exist)">Sh 2-150</a></li> <li><a href="/w/index.php?title=Sh_2-151&action=edit&redlink=1" class="new" title="Sh 2-151 (page does not exist)">Sh 2-151</a></li> <li><a href="/w/index.php?title=Sh_2-152&action=edit&redlink=1" class="new" title="Sh 2-152 (page does not exist)">Sh 2-152</a></li> <li><a href="/w/index.php?title=Sh_2-153&action=edit&redlink=1" class="new" title="Sh 2-153 (page does not exist)">Sh 2-153</a></li> <li><a href="/w/index.php?title=Sh_2-154&action=edit&redlink=1" class="new" title="Sh 2-154 (page does not exist)">Sh 2-154</a></li> <li><a href="/wiki/Sh_2-155" title="Sh 2-155">Sh 2-155</a></li> <li><a href="/w/index.php?title=IC_1470&action=edit&redlink=1" class="new" title="IC 1470 (page does not exist)">Sh 2-156</a></li> <li><a href="/w/index.php?title=Sh_2-157&action=edit&redlink=1" class="new" title="Sh 2-157 (page does not exist)">Sh 2-157</a></li> <li><a href="/wiki/NGC_7538" title="NGC 7538">Sh 2-158</a></li> <li><a href="/w/index.php?title=Sh_2-159&action=edit&redlink=1" class="new" title="Sh 2-159 (page does not exist)">Sh 2-159</a></li> <li><a href="/w/index.php?title=Sh_2-160&action=edit&redlink=1" class="new" title="Sh 2-160 (page does not exist)">Sh 2-160</a></li> <li><a href="/w/index.php?title=Sh_2-161&action=edit&redlink=1" class="new" title="Sh 2-161 (page does not exist)">Sh 2-161</a></li> <li><a href="/wiki/NGC_7635" class="mw-redirect" title="NGC 7635">Sh 2-162</a></li> <li><a href="/w/index.php?title=Sh_2-163&action=edit&redlink=1" class="new" title="Sh 2-163 (page does not exist)">Sh 2-163</a></li> <li><a href="/w/index.php?title=Sh_2-164&action=edit&redlink=1" class="new" title="Sh 2-164 (page does not exist)">Sh 2-164</a></li> <li><a href="/w/index.php?title=Sh_2-165&action=edit&redlink=1" class="new" title="Sh 2-165 (page does not exist)">Sh 2-165</a></li> <li><a href="/w/index.php?title=Sh_2-166&action=edit&redlink=1" class="new" title="Sh 2-166 (page does not exist)">Sh 2-166</a></li> <li><a href="/w/index.php?title=Sh_2-167&action=edit&redlink=1" class="new" title="Sh 2-167 (page does not exist)">Sh 2-167</a></li> <li><a href="/w/index.php?title=Sh_2-168&action=edit&redlink=1" class="new" title="Sh 2-168 (page does not exist)">Sh 2-168</a></li> <li><a href="/w/index.php?title=Sh_2-169&action=edit&redlink=1" class="new" title="Sh 2-169 (page does not exist)">Sh 2-169</a></li> <li><a href="/w/index.php?title=Sh_2-170&action=edit&redlink=1" class="new" title="Sh 2-170 (page does not exist)">Sh 2-170</a></li> <li><a href="/wiki/NGC_7822" title="NGC 7822">Sh 2-171</a></li> <li><a href="/w/index.php?title=Sh_2-172&action=edit&redlink=1" class="new" title="Sh 2-172 (page does not exist)">Sh 2-172</a></li> <li><a href="/w/index.php?title=Sh_2-173&action=edit&redlink=1" class="new" title="Sh 2-173 (page does not exist)">Sh 2-173</a></li> <li><a href="/w/index.php?title=Sh_2-174&action=edit&redlink=1" class="new" title="Sh 2-174 (page does not exist)">Sh 2-174</a></li> <li><a href="/w/index.php?title=Sh_2-175&action=edit&redlink=1" class="new" title="Sh 2-175 (page does not exist)">Sh 2-175</a></li> <li><a href="/w/index.php?title=Sh_2-176&action=edit&redlink=1" class="new" title="Sh 2-176 (page does not exist)">Sh 2-176</a></li> <li><a href="/w/index.php?title=Sh_2-177&action=edit&redlink=1" class="new" title="Sh 2-177 (page does not exist)">Sh 2-177</a></li> <li><a href="/w/index.php?title=Sh_2-178&action=edit&redlink=1" class="new" title="Sh 2-178 (page does not exist)">Sh 2-178</a></li> <li><a href="/w/index.php?title=Sh_2-179&action=edit&redlink=1" class="new" title="Sh 2-179 (page does not exist)">Sh 2-179</a></li> <li><a href="/w/index.php?title=Sh_2-180&action=edit&redlink=1" class="new" title="Sh 2-180 (page does not exist)">Sh 2-180</a></li> <li><a href="/w/index.php?title=Sh_2-181&action=edit&redlink=1" class="new" title="Sh 2-181 (page does not exist)">Sh 2-181</a></li> <li><a href="/w/index.php?title=Sh_2-182&action=edit&redlink=1" class="new" title="Sh 2-182 (page does not exist)">Sh 2-182</a></li> <li><a href="/w/index.php?title=Sh_2-183&action=edit&redlink=1" class="new" title="Sh 2-183 (page does not exist)">Sh 2-183</a></li> <li><a href="/wiki/NGC_281" title="NGC 281">Sh 2-184</a></li> <li><a href="/wiki/Sh_2-185" title="Sh 2-185">Sh 2-185</a></li> <li><a href="/w/index.php?title=Sh_2-186&action=edit&redlink=1" class="new" title="Sh 2-186 (page does not exist)">Sh 2-186</a></li> <li><a href="/w/index.php?title=Sh_2-187&action=edit&redlink=1" class="new" title="Sh 2-187 (page does not exist)">Sh 2-187</a></li> <li><a href="/w/index.php?title=Sh_2-188&action=edit&redlink=1" class="new" title="Sh 2-188 (page does not exist)">Sh 2-188</a></li> <li><a href="/w/index.php?title=Abell_3&action=edit&redlink=1" class="new" title="Abell 3 (page does not exist)">Sh 2-189</a></li> <li><a href="/wiki/Heart_Nebula" title="Heart Nebula">Sh 2-190</a></li> <li><a href="/wiki/Maffei_1" title="Maffei 1">Sh 2-191</a></li> <li><a href="/w/index.php?title=Sh_2-192&action=edit&redlink=1" class="new" title="Sh 2-192 (page does not exist)">Sh 2-192</a></li> <li><a href="/w/index.php?title=Sh_2-193&action=edit&redlink=1" class="new" title="Sh 2-193 (page does not exist)">Sh 2-193</a></li> <li><a href="/w/index.php?title=Sh_2-194&action=edit&redlink=1" class="new" title="Sh 2-194 (page does not exist)">Sh 2-194</a></li> <li><a href="/w/index.php?title=Sh_2-195&action=edit&redlink=1" class="new" title="Sh 2-195 (page does not exist)">Sh 2-195</a></li> <li><a href="/w/index.php?title=Sh_2-196&action=edit&redlink=1" class="new" title="Sh 2-196 (page does not exist)">Sh 2-196</a></li> <li><a href="/wiki/Maffei_2" title="Maffei 2">Sh 2-197</a></li> <li><a href="/w/index.php?title=Sh_2-198&action=edit&redlink=1" class="new" title="Sh 2-198 (page does not exist)">Sh 2-198</a></li> <li><a href="/wiki/Westerhout_5" title="Westerhout 5">Sh 2-199</a></li> <li><a href="/wiki/Sh_2-201" title="Sh 2-201">Sh 2-201</a></li> <li><a href="/w/index.php?title=Sh_2-202&action=edit&redlink=1" class="new" title="Sh 2-202 (page does not exist)">Sh 2-202</a></li> <li><a href="/w/index.php?title=Sh_2-203&action=edit&redlink=1" class="new" title="Sh 2-203 (page does not exist)">Sh 2-203</a></li> <li><a href="/w/index.php?title=Sh_2-204&action=edit&redlink=1" class="new" title="Sh 2-204 (page does not exist)">Sh 2-204</a></li> <li><a href="/w/index.php?title=Sh_2-205&action=edit&redlink=1" class="new" title="Sh 2-205 (page does not exist)">Sh 2-205</a></li> <li><a href="/wiki/NGC_1491" title="NGC 1491">Sh 2-206</a></li> <li><a href="/w/index.php?title=Sh_2-207&action=edit&redlink=1" class="new" title="Sh 2-207 (page does not exist)">Sh 2-207</a></li> <li><a href="/w/index.php?title=Sh_2-208&action=edit&redlink=1" class="new" title="Sh 2-208 (page does not exist)">Sh 2-208</a></li> <li><a href="/w/index.php?title=Sh_2-209&action=edit&redlink=1" class="new" title="Sh 2-209 (page does not exist)">Sh 2-209</a></li> <li><a href="/w/index.php?title=Sh_2-210&action=edit&redlink=1" class="new" title="Sh 2-210 (page does not exist)">Sh 2-210</a></li> <li><a href="/w/index.php?title=Sh_2-211&action=edit&redlink=1" class="new" title="Sh 2-211 (page does not exist)">Sh 2-211</a></li> <li><a href="/wiki/NGC_1624" title="NGC 1624">Sh 2-212</a></li> <li><a href="/w/index.php?title=Sh_2-213&action=edit&redlink=1" class="new" title="Sh 2-213 (page does not exist)">Sh 2-213</a></li> <li><a href="/w/index.php?title=Sh_2-214&action=edit&redlink=1" class="new" title="Sh 2-214 (page does not exist)">Sh 2-214</a></li> <li><a href="/w/index.php?title=Sh_2-215&action=edit&redlink=1" class="new" title="Sh 2-215 (page does not exist)">Sh 2-215</a></li> <li><a href="/w/index.php?title=Sh_2-216&action=edit&redlink=1" class="new" title="Sh 2-216 (page does not exist)">Sh 2-216</a></li> <li><a href="/w/index.php?title=Sh_2-217&action=edit&redlink=1" class="new" title="Sh 2-217 (page does not exist)">Sh 2-217</a></li> <li><a href="/w/index.php?title=Sh_2-218&action=edit&redlink=1" class="new" title="Sh 2-218 (page does not exist)">Sh 2-218</a></li> <li><a href="/w/index.php?title=Sh_2-219&action=edit&redlink=1" class="new" title="Sh 2-219 (page does not exist)">Sh 2-219</a></li> <li><a href="/wiki/California_Nebula" title="California Nebula">Sh 2-220</a></li> <li><a href="/w/index.php?title=Sh_2-221&action=edit&redlink=1" class="new" title="Sh 2-221 (page does not exist)">Sh 2-221</a></li> <li><a href="/wiki/NGC_1579" title="NGC 1579">Sh 2-222</a></li> <li><a href="/w/index.php?title=Sh_2-223&action=edit&redlink=1" class="new" title="Sh 2-223 (page does not exist)">Sh 2-223</a></li> <li><a href="/w/index.php?title=Sh_2-224&action=edit&redlink=1" class="new" title="Sh 2-224 (page does not exist)">Sh 2-224</a></li> <li><a href="/w/index.php?title=Sh_2-225&action=edit&redlink=1" class="new" title="Sh 2-225 (page does not exist)">Sh 2-225</a></li> <li><a href="/w/index.php?title=Sh_2-226&action=edit&redlink=1" class="new" title="Sh 2-226 (page does not exist)">Sh 2-226</a></li> <li><a href="/w/index.php?title=Sh_2-227&action=edit&redlink=1" class="new" title="Sh 2-227 (page does not exist)">Sh 2-227</a></li> <li><a href="/w/index.php?title=Sh_2-228&action=edit&redlink=1" class="new" title="Sh 2-228 (page does not exist)">Sh 2-228</a></li> <li><a href="/wiki/IC_405" title="IC 405">Sh 2-229</a></li> <li><a href="/w/index.php?title=Sh_2-230&action=edit&redlink=1" class="new" title="Sh 2-230 (page does not exist)">Sh 2-230</a></li> <li><a href="/w/index.php?title=Sh_2-231&action=edit&redlink=1" class="new" title="Sh 2-231 (page does not exist)">Sh 2-231</a></li> <li><a href="/w/index.php?title=Sh_2-232&action=edit&redlink=1" class="new" title="Sh 2-232 (page does not exist)">Sh 2-232</a></li> <li><a href="/w/index.php?title=Sh_2-233&action=edit&redlink=1" class="new" title="Sh 2-233 (page does not exist)">Sh 2-233</a></li> <li><a href="/w/index.php?title=IC_417&action=edit&redlink=1" class="new" title="IC 417 (page does not exist)">Sh 2-234</a></li> <li><a href="/w/index.php?title=Sh_2-235&action=edit&redlink=1" class="new" title="Sh 2-235 (page does not exist)">Sh 2-235</a></li> <li><a href="/w/index.php?title=Sh_2-236&action=edit&redlink=1" class="new" title="Sh 2-236 (page does not exist)">Sh 2-236</a></li> <li><a href="/wiki/NGC_1931" title="NGC 1931">Sh 2-237</a></li> <li><a href="/wiki/NGC_1555" title="NGC 1555">Sh 2-238</a></li> <li><a href="/w/index.php?title=Sh_2-239&action=edit&redlink=1" class="new" title="Sh 2-239 (page does not exist)">Sh 2-239</a></li> <li><a href="/wiki/Simeis_147" title="Simeis 147">Sh 2-240</a></li> <li><a href="/w/index.php?title=Sh_2-241&action=edit&redlink=1" class="new" title="Sh 2-241 (page does not exist)">Sh 2-241</a></li> <li><a href="/w/index.php?title=Sh_2-242&action=edit&redlink=1" class="new" title="Sh 2-242 (page does not exist)">Sh 2-242</a></li> <li><a href="/w/index.php?title=Sh_2-243&action=edit&redlink=1" class="new" title="Sh 2-243 (page does not exist)">Sh 2-243</a></li> <li><a href="/wiki/Crab_Nebula" title="Crab Nebula">Sh 2-244</a></li> <li><a href="/w/index.php?title=Sh_2-245&action=edit&redlink=1" class="new" title="Sh 2-245 (page does not exist)">Sh 2-245</a></li> <li><a href="/w/index.php?title=Sh_2-246&action=edit&redlink=1" class="new" title="Sh 2-246 (page does not exist)">Sh 2-246</a></li> <li><a href="/w/index.php?title=Sh_2-247&action=edit&redlink=1" class="new" title="Sh 2-247 (page does not exist)">Sh 2-247</a></li> <li><a href="/wiki/IC_443" title="IC 443">Sh 2-248</a></li> <li><a href="/w/index.php?title=Sh_2-249&action=edit&redlink=1" class="new" title="Sh 2-249 (page does not exist)">Sh 2-249</a></li> <li><a href="/w/index.php?title=Sh_2-250&action=edit&redlink=1" class="new" title="Sh 2-250 (page does not exist)">Sh 2-250</a></li> <li><a href="/w/index.php?title=Sh_2-251&action=edit&redlink=1" class="new" title="Sh 2-251 (page does not exist)">Sh 2-251</a></li> <li><a href="/w/index.php?title=Sh_2-252&action=edit&redlink=1" class="new" title="Sh 2-252 (page does not exist)">Sh 2-252</a></li> <li><a href="/w/index.php?title=Sh_2-253&action=edit&redlink=1" class="new" title="Sh 2-253 (page does not exist)">Sh 2-253</a></li> <li><a href="/w/index.php?title=Sh_2-254&action=edit&redlink=1" class="new" title="Sh 2-254 (page does not exist)">Sh 2-254</a></li> <li><a href="/w/index.php?title=Sh_2-255&action=edit&redlink=1" class="new" title="Sh 2-255 (page does not exist)">Sh 2-255</a></li> <li><a href="/w/index.php?title=Sh_2-256&action=edit&redlink=1" class="new" title="Sh 2-256 (page does not exist)">Sh 2-256</a></li> <li><a href="/w/index.php?title=Sh_2-257&action=edit&redlink=1" class="new" title="Sh 2-257 (page does not exist)">Sh 2-257</a></li> <li><a href="/w/index.php?title=Sh_2-258&action=edit&redlink=1" class="new" title="Sh 2-258 (page does not exist)">Sh 2-258</a></li> <li><a href="/w/index.php?title=Sh_2-259&action=edit&redlink=1" class="new" title="Sh 2-259 (page does not exist)">Sh 2-259</a></li> <li><a href="/w/index.php?title=Sh_2-260&action=edit&redlink=1" class="new" title="Sh 2-260 (page does not exist)">Sh 2-260</a></li> <li><a href="/w/index.php?title=Sh_2-261&action=edit&redlink=1" class="new" title="Sh 2-261 (page does not exist)">Sh 2-261</a></li> <li><a href="/w/index.php?title=Sh_2-262&action=edit&redlink=1" class="new" title="Sh 2-262 (page does not exist)">Sh 2-262</a></li> <li><a href="/w/index.php?title=Sh_2-263&action=edit&redlink=1" class="new" title="Sh 2-263 (page does not exist)">Sh 2-263</a></li> <li><a href="/wiki/Sh_2-264" title="Sh 2-264">Sh 2-264</a></li> <li><a href="/w/index.php?title=Sh_2-265&action=edit&redlink=1" class="new" title="Sh 2-265 (page does not exist)">Sh 2-265</a></li> <li><a href="/w/index.php?title=Sh_2-266&action=edit&redlink=1" class="new" title="Sh 2-266 (page does not exist)">Sh 2-266</a></li> <li><a href="/w/index.php?title=Sh_2-267&action=edit&redlink=1" class="new" title="Sh 2-267 (page does not exist)">Sh 2-267</a></li> <li><a href="/w/index.php?title=Sh_2-268&action=edit&redlink=1" class="new" title="Sh 2-268 (page does not exist)">Sh 2-268</a></li> <li><a href="/w/index.php?title=Sh_2-269&action=edit&redlink=1" class="new" title="Sh 2-269 (page does not exist)">Sh 2-269</a></li> <li><a href="/w/index.php?title=Sh_2-270&action=edit&redlink=1" class="new" title="Sh 2-270 (page does not exist)">Sh 2-270</a></li> <li><a href="/w/index.php?title=Sh_2-271&action=edit&redlink=1" class="new" title="Sh 2-271 (page does not exist)">Sh 2-271</a></li> <li><a href="/w/index.php?title=Sh_2-272&action=edit&redlink=1" class="new" title="Sh 2-272 (page does not exist)">Sh 2-272</a></li> <li><a href="/wiki/Fox_Fur_Nebula" title="Fox Fur Nebula">Sh 2-273</a></li> <li><a href="/wiki/Medusa_Nebula" title="Medusa Nebula">Sh 2-274</a></li> <li><a href="/wiki/Rosette_Nebula" title="Rosette Nebula">Sh 2-275</a></li> <li><a href="/wiki/Barnard%27s_Loop" title="Barnard's Loop">Sh 2-276</a></li> <li><a href="/wiki/Flame_Nebula" title="Flame Nebula">Sh 2-277</a></li> <li><a href="/w/index.php?title=Sh_2-278&action=edit&redlink=1" class="new" title="Sh 2-278 (page does not exist)">Sh 2-278</a></li> <li><a href="/wiki/Sh_2-279" title="Sh 2-279">Sh 2-279</a></li> <li><a href="/w/index.php?title=Sh_2-280&action=edit&redlink=1" class="new" title="Sh 2-280 (page does not exist)">Sh 2-280</a></li> <li><a class="mw-selflink selflink">Sh 2-281</a></li> <li><a href="/w/index.php?title=Sh_2-282&action=edit&redlink=1" class="new" title="Sh 2-282 (page does not exist)">Sh 2-282</a></li> <li><a href="/w/index.php?title=Sh_2-283&action=edit&redlink=1" class="new" title="Sh 2-283 (page does not exist)">Sh 2-283</a></li> <li><a href="/w/index.php?title=Sh_2-284&action=edit&redlink=1" class="new" title="Sh 2-284 (page does not exist)">Sh 2-284</a></li> <li><a href="/w/index.php?title=Sh_2-285&action=edit&redlink=1" class="new" title="Sh 2-285 (page does not exist)">Sh 2-285</a></li> <li><a href="/w/index.php?title=Sh_2-286&action=edit&redlink=1" class="new" title="Sh 2-286 (page does not exist)">Sh 2-286</a></li> <li><a href="/w/index.php?title=Sh_2-287&action=edit&redlink=1" class="new" title="Sh 2-287 (page does not exist)">Sh 2-287</a></li> <li><a href="/w/index.php?title=Sh_2-288&action=edit&redlink=1" class="new" title="Sh 2-288 (page does not exist)">Sh 2-288</a></li> <li><a href="/w/index.php?title=Sh_2-289&action=edit&redlink=1" class="new" title="Sh 2-289 (page does not exist)">Sh 2-289</a></li> <li><a href="/wiki/Abell_31" title="Abell 31">Sh 2-290</a></li> <li><a href="/w/index.php?title=Sh_2-291&action=edit&redlink=1" class="new" title="Sh 2-291 (page does not exist)">Sh 2-291</a></li> <li><a href="/wiki/IC_2177" title="IC 2177">Sh 2-292</a></li> <li><a href="/w/index.php?title=Sh_2-293&action=edit&redlink=1" class="new" title="Sh 2-293 (page does not exist)">Sh 2-293</a></li> <li><a href="/w/index.php?title=Sh_2-294&action=edit&redlink=1" class="new" title="Sh 2-294 (page does not exist)">Sh 2-294</a></li> <li><a href="/w/index.php?title=Sh_2-295&action=edit&redlink=1" class="new" title="Sh 2-295 (page does not exist)">Sh 2-295</a></li> <li><a href="/w/index.php?title=Sh_2-296&action=edit&redlink=1" class="new" title="Sh 2-296 (page does not exist)">Sh 2-296</a></li> <li><a href="/wiki/Sh_2-297" title="Sh 2-297">Sh 2-297</a></li> <li><a href="/wiki/NGC_2359" title="NGC 2359">Sh 2-298</a></li> <li><a href="/w/index.php?title=Sh_2-299&action=edit&redlink=1" class="new" title="Sh 2-299 (page does not exist)">Sh 2-299</a></li> <li><a href="/w/index.php?title=Sh_2-301&action=edit&redlink=1" class="new" title="Sh 2-301 (page does not exist)">Sh 2-301</a></li> <li><a href="/w/index.php?title=Sh_2-302&action=edit&redlink=1" class="new" title="Sh 2-302 (page does not exist)">Sh 2-302</a></li> <li><a href="/w/index.php?title=Sh_2-303&action=edit&redlink=1" class="new" title="Sh 2-303 (page does not exist)">Sh 2-303</a></li> <li><a href="/w/index.php?title=Sh_2-304&action=edit&redlink=1" class="new" title="Sh 2-304 (page does not exist)">Sh 2-304</a></li> <li><a href="/w/index.php?title=Sh_2-305&action=edit&redlink=1" class="new" title="Sh 2-305 (page does not exist)">Sh 2-305</a></li> <li><a href="/w/index.php?title=Sh_2-306&action=edit&redlink=1" class="new" title="Sh 2-306 (page does not exist)">Sh 2-306</a></li> <li><a href="/w/index.php?title=Sh_2-307&action=edit&redlink=1" class="new" title="Sh 2-307 (page does not exist)">Sh 2-307</a></li> <li><a href="/wiki/Sh_2-308" title="Sh 2-308">Sh 2-308</a></li> <li><a href="/w/index.php?title=Sh_2-309&action=edit&redlink=1" class="new" title="Sh 2-309 (page does not exist)">Sh 2-309</a></li> <li><a href="/w/index.php?title=Sh_2-310&action=edit&redlink=1" class="new" title="Sh 2-310 (page does not exist)">Sh 2-310</a></li> <li><a href="/w/index.php?title=Sh_2-311&action=edit&redlink=1" class="new" title="Sh 2-311 (page does not exist)">Sh 2-311</a></li> <li><a href="/w/index.php?title=Sh_2-312&action=edit&redlink=1" class="new" title="Sh 2-312 (page does not exist)">Sh 2-312</a></li> <li><a href="/wiki/Abell_35" title="Abell 35">Sh 2-313</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><i>See also:</i> <a href="/wiki/Gum_catalog" title="Gum catalog">Gum catalog</a></li> <li><a href="/wiki/Nebula" title="Nebula">Nebula</a></li> <li><a href="/wiki/RCW_Catalogue" title="RCW Catalogue">RCW Catalogue</a></li> <li><a href="/wiki/Stewart_Sharpless" title="Stewart Sharpless">Stewart Sharpless</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="New_General_Catalogue_1500_to_1999" style="padding:3px"><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:NGC_objects:1500-1999" title="Template:NGC objects:1500-1999"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:NGC_objects:1500-1999" title="Template talk:NGC objects:1500-1999"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:NGC_objects:1500-1999" title="Special:EditPage/Template:NGC objects:1500-1999"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="New_General_Catalogue_1500_to_1999" style="font-size:114%;margin:0 4em"><a href="/wiki/New_General_Catalogue" title="New General Catalogue">New General Catalogue</a> <small><i>1500 to 1999</i></small></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/w/index.php?title=NGC_1500&action=edit&redlink=1" class="new" title="NGC 1500 (page does not exist)">1500</a></li> <li><a href="/wiki/NGC_1501" title="NGC 1501">1501</a></li> <li><a href="/wiki/NGC_1502" title="NGC 1502">1502</a></li> <li><a href="/w/index.php?title=NGC_1503&action=edit&redlink=1" class="new" title="NGC 1503 (page does not exist)">1503</a></li> <li><a href="/w/index.php?title=NGC_1504&action=edit&redlink=1" class="new" title="NGC 1504 (page does not exist)">1504</a></li> <li><a href="/w/index.php?title=NGC_1505&action=edit&redlink=1" class="new" title="NGC 1505 (page does not exist)">1505</a></li> <li><a href="/w/index.php?title=NGC_1506&action=edit&redlink=1" class="new" title="NGC 1506 (page does not exist)">1506</a></li> <li><a href="/w/index.php?title=NGC_1507&action=edit&redlink=1" class="new" title="NGC 1507 (page does not exist)">1507</a></li> <li><a href="/w/index.php?title=NGC_1508&action=edit&redlink=1" class="new" title="NGC 1508 (page does not exist)">1508</a></li> <li><a href="/w/index.php?title=NGC_1509&action=edit&redlink=1" class="new" title="NGC 1509 (page does not exist)">1509</a></li> <li><a href="/wiki/NGC_1510" title="NGC 1510">1510</a></li> <li><a href="/wiki/NGC_1511" title="NGC 1511">1511</a></li> <li><a href="/wiki/NGC_1512" title="NGC 1512">1512</a></li> <li><a href="/wiki/NGC_1513" title="NGC 1513">1513</a></li> <li><a href="/wiki/NGC_1514" title="NGC 1514">1514</a></li> <li><a href="/w/index.php?title=NGC_1515&action=edit&redlink=1" class="new" title="NGC 1515 (page does not exist)">1515</a></li> <li><a href="/w/index.php?title=NGC_1516&action=edit&redlink=1" class="new" title="NGC 1516 (page does not exist)">1516</a></li> <li><a href="/w/index.php?title=NGC_1517&action=edit&redlink=1" class="new" title="NGC 1517 (page does not exist)">1517</a></li> <li><a href="/w/index.php?title=NGC_1518&action=edit&redlink=1" class="new" title="NGC 1518 (page does not exist)">1518</a></li> <li><a href="/w/index.php?title=NGC_1519&action=edit&redlink=1" class="new" title="NGC 1519 (page does not exist)">1519</a></li> <li><a href="/wiki/NGC_1520" class="mw-redirect" title="NGC 1520">1520</a></li> <li><a href="/w/index.php?title=NGC_1521&action=edit&redlink=1" class="new" title="NGC 1521 (page does not exist)">1521</a></li> <li><a href="/w/index.php?title=NGC_1522&action=edit&redlink=1" class="new" title="NGC 1522 (page does not exist)">1522</a></li> <li><a href="/wiki/NGC_1523" class="mw-redirect" title="NGC 1523">1523</a></li> <li><a href="/w/index.php?title=NGC_1524&action=edit&redlink=1" class="new" title="NGC 1524 (page does not exist)">1524</a></li> <li><a href="/w/index.php?title=NGC_1525&action=edit&redlink=1" class="new" title="NGC 1525 (page does not exist)">1525</a></li> <li><a href="/w/index.php?title=NGC_1526&action=edit&redlink=1" class="new" title="NGC 1526 (page does not exist)">1526</a></li> <li><a href="/w/index.php?title=NGC_1527&action=edit&redlink=1" class="new" title="NGC 1527 (page does not exist)">1527</a></li> <li><a href="/wiki/NGC_1528" title="NGC 1528">1528</a></li> <li><a href="/w/index.php?title=NGC_1529&action=edit&redlink=1" class="new" title="NGC 1529 (page does not exist)">1529</a></li> <li><a href="/wiki/NGC_1530" title="NGC 1530">1530</a></li> <li><a href="/wiki/NGC_1531" title="NGC 1531">1531</a></li> <li><a href="/wiki/NGC_1532" title="NGC 1532">1532</a></li> <li><a href="/wiki/NGC_1533" title="NGC 1533">1533</a></li> <li><a href="/w/index.php?title=NGC_1534&action=edit&redlink=1" class="new" title="NGC 1534 (page does not exist)">1534</a></li> <li><a href="/wiki/NGC_1535" title="NGC 1535">1535</a></li> <li><a href="/w/index.php?title=NGC_1536&action=edit&redlink=1" class="new" title="NGC 1536 (page does not exist)">1536</a></li> <li><a href="/wiki/NGC_1537" title="NGC 1537">1537</a></li> <li><a href="/w/index.php?title=NGC_1538&action=edit&redlink=1" class="new" title="NGC 1538 (page does not exist)">1538</a></li> <li><a href="/w/index.php?title=NGC_1539&action=edit&redlink=1" class="new" title="NGC 1539 (page does not exist)">1539</a></li> <li><a href="/w/index.php?title=NGC_1540&action=edit&redlink=1" class="new" title="NGC 1540 (page does not exist)">1540</a></li> <li><a href="/w/index.php?title=NGC_1541&action=edit&redlink=1" class="new" title="NGC 1541 (page does not exist)">1541</a></li> <li><a href="/w/index.php?title=NGC_1542&action=edit&redlink=1" class="new" title="NGC 1542 (page does not exist)">1542</a></li> <li><a href="/w/index.php?title=NGC_1543&action=edit&redlink=1" class="new" title="NGC 1543 (page does not exist)">1543</a></li> <li><a href="/w/index.php?title=NGC_1544&action=edit&redlink=1" class="new" title="NGC 1544 (page does not exist)">1544</a></li> <li><a href="/wiki/NGC_1545" title="NGC 1545">1545</a></li> <li><a href="/w/index.php?title=NGC_1546&action=edit&redlink=1" class="new" title="NGC 1546 (page does not exist)">1546</a></li> <li><a href="/w/index.php?title=NGC_1547&action=edit&redlink=1" class="new" title="NGC 1547 (page does not exist)">1547</a></li> <li><a href="/w/index.php?title=NGC_1548&action=edit&redlink=1" class="new" title="NGC 1548 (page does not exist)">1548</a></li> <li><a href="/wiki/NGC_1549" title="NGC 1549">1549</a></li> <li><a href="/w/index.php?title=NGC_1550&action=edit&redlink=1" class="new" title="NGC 1550 (page does not exist)">1550</a></li> <li><a href="/w/index.php?title=NGC_1551&action=edit&redlink=1" class="new" title="NGC 1551 (page does not exist)">1551</a></li> <li><a href="/w/index.php?title=NGC_1552&action=edit&redlink=1" class="new" title="NGC 1552 (page does not exist)">1552</a></li> <li><a href="/wiki/NGC_1553" title="NGC 1553">1553</a></li> <li><a href="/wiki/NGC_1554" title="NGC 1554">1554</a></li> <li><a href="/wiki/NGC_1555" title="NGC 1555">1555</a></li> <li><a href="/w/index.php?title=NGC_1556&action=edit&redlink=1" class="new" title="NGC 1556 (page does not exist)">1556</a></li> <li><a href="/wiki/NGC_1557" class="mw-redirect" title="NGC 1557">1557</a></li> <li><a href="/w/index.php?title=NGC_1558&action=edit&redlink=1" class="new" title="NGC 1558 (page does not exist)">1558</a></li> <li><a href="/wiki/NGC_1559" title="NGC 1559">1559</a></li> <li><a href="/wiki/NGC_1560" title="NGC 1560">1560</a></li> <li><a href="/w/index.php?title=NGC_1561&action=edit&redlink=1" class="new" title="NGC 1561 (page does not exist)">1561</a></li> <li><a href="/w/index.php?title=NGC_1562&action=edit&redlink=1" class="new" title="NGC 1562 (page does not exist)">1562</a></li> <li><a href="/w/index.php?title=NGC_1563&action=edit&redlink=1" class="new" title="NGC 1563 (page does not exist)">1563</a></li> <li><a href="/w/index.php?title=NGC_1564&action=edit&redlink=1" class="new" title="NGC 1564 (page does not exist)">1564</a></li> <li><a href="/w/index.php?title=NGC_1565&action=edit&redlink=1" class="new" title="NGC 1565 (page does not exist)">1565</a></li> <li><a href="/wiki/NGC_1566" title="NGC 1566">1566</a></li> <li><a href="/w/index.php?title=NGC_1567&action=edit&redlink=1" class="new" title="NGC 1567 (page does not exist)">1567</a></li> <li><a href="/w/index.php?title=NGC_1568&action=edit&redlink=1" class="new" title="NGC 1568 (page does not exist)">1568</a></li> <li><a href="/wiki/NGC_1569" title="NGC 1569">1569</a></li> <li><a href="/wiki/NGC_1570" title="NGC 1570">1570</a></li> <li><a href="/wiki/NGC_1571" class="mw-redirect" title="NGC 1571">1571</a></li> <li><a href="/w/index.php?title=NGC_1572&action=edit&redlink=1" class="new" title="NGC 1572 (page does not exist)">1572</a></li> <li><a href="/wiki/NGC_1573" title="NGC 1573">1573</a></li> <li><a href="/w/index.php?title=NGC_1574&action=edit&redlink=1" class="new" title="NGC 1574 (page does not exist)">1574</a></li> <li><a href="/w/index.php?title=NGC_1575&action=edit&redlink=1" class="new" title="NGC 1575 (page does not exist)">1575</a></li> <li><a href="/w/index.php?title=NGC_1576&action=edit&redlink=1" class="new" title="NGC 1576 (page does not exist)">1576</a></li> <li><a href="/w/index.php?title=NGC_1577&action=edit&redlink=1" class="new" title="NGC 1577 (page does not exist)">1577</a></li> <li><a href="/w/index.php?title=NGC_1578&action=edit&redlink=1" class="new" title="NGC 1578 (page does not exist)">1578</a></li> <li><a href="/wiki/NGC_1579" title="NGC 1579">1579</a></li> <li><a href="/w/index.php?title=NGC_1580&action=edit&redlink=1" class="new" title="NGC 1580 (page does not exist)">1580</a></li> <li><a href="/w/index.php?title=NGC_1581&action=edit&redlink=1" class="new" title="NGC 1581 (page does not exist)">1581</a></li> <li><a href="/w/index.php?title=NGC_1582&action=edit&redlink=1" class="new" title="NGC 1582 (page does not exist)">1582</a></li> <li><a href="/w/index.php?title=NGC_1583&action=edit&redlink=1" class="new" title="NGC 1583 (page does not exist)">1583</a></li> <li><a href="/w/index.php?title=NGC_1584&action=edit&redlink=1" class="new" title="NGC 1584 (page does not exist)">1584</a></li> <li><a href="/wiki/NGC_1585" title="NGC 1585">1585</a></li> <li><a href="/w/index.php?title=NGC_1586&action=edit&redlink=1" class="new" title="NGC 1586 (page does not exist)">1586</a></li> <li><a href="/w/index.php?title=NGC_1587&action=edit&redlink=1" class="new" title="NGC 1587 (page does not exist)">1587</a></li> <li><a href="/w/index.php?title=NGC_1588&action=edit&redlink=1" class="new" title="NGC 1588 (page does not exist)">1588</a></li> <li><a href="/w/index.php?title=NGC_1589&action=edit&redlink=1" class="new" title="NGC 1589 (page does not exist)">1589</a></li> <li><a href="/wiki/NGC_1590" title="NGC 1590">1590</a></li> <li><a href="/w/index.php?title=NGC_1591&action=edit&redlink=1" class="new" title="NGC 1591 (page does not exist)">1591</a></li> <li><a href="/wiki/NGC_1592" title="NGC 1592">1592</a></li> <li><a href="/w/index.php?title=NGC_1593&action=edit&redlink=1" class="new" title="NGC 1593 (page does not exist)">1593</a></li> <li><a href="/w/index.php?title=NGC_1594&action=edit&redlink=1" class="new" title="NGC 1594 (page does not exist)">1594</a></li> <li><a href="/w/index.php?title=NGC_1595&action=edit&redlink=1" class="new" title="NGC 1595 (page does not exist)">1595</a></li> <li><a href="/w/index.php?title=NGC_1596&action=edit&redlink=1" class="new" title="NGC 1596 (page does not exist)">1596</a></li> <li><a href="/w/index.php?title=NGC_1597&action=edit&redlink=1" class="new" title="NGC 1597 (page does not exist)">1597</a></li> <li><a href="/w/index.php?title=NGC_1598&action=edit&redlink=1" class="new" title="NGC 1598 (page does not exist)">1598</a></li> <li><a href="/w/index.php?title=NGC_1599&action=edit&redlink=1" class="new" title="NGC 1599 (page does not exist)">1599</a></li> <li><a href="/wiki/NGC_1600" title="NGC 1600">1600</a></li> <li><a href="/w/index.php?title=NGC_1601&action=edit&redlink=1" class="new" title="NGC 1601 (page does not exist)">1601</a></li> <li><a href="/w/index.php?title=NGC_1602&action=edit&redlink=1" class="new" title="NGC 1602 (page does not exist)">1602</a></li> <li><a href="/w/index.php?title=NGC_1603&action=edit&redlink=1" class="new" title="NGC 1603 (page does not exist)">1603</a></li> <li><a href="/w/index.php?title=NGC_1604&action=edit&redlink=1" class="new" title="NGC 1604 (page does not exist)">1604</a></li> <li><a href="/w/index.php?title=NGC_1605&action=edit&redlink=1" class="new" title="NGC 1605 (page does not exist)">1605</a></li> <li><a href="/w/index.php?title=NGC_1606&action=edit&redlink=1" class="new" title="NGC 1606 (page does not exist)">1606</a></li> <li><a href="/w/index.php?title=NGC_1607&action=edit&redlink=1" class="new" title="NGC 1607 (page does not exist)">1607</a></li> <li><a href="/w/index.php?title=NGC_1608&action=edit&redlink=1" class="new" title="NGC 1608 (page does not exist)">1608</a></li> <li><a href="/w/index.php?title=NGC_1609&action=edit&redlink=1" class="new" title="NGC 1609 (page does not exist)">1609</a></li> <li><a href="/wiki/NGC_1610" class="mw-redirect" title="NGC 1610">1610</a></li> <li><a href="/w/index.php?title=NGC_1611&action=edit&redlink=1" class="new" title="NGC 1611 (page does not exist)">1611</a></li> <li><a href="/w/index.php?title=NGC_1612&action=edit&redlink=1" class="new" title="NGC 1612 (page does not exist)">1612</a></li> <li><a href="/w/index.php?title=NGC_1613&action=edit&redlink=1" class="new" title="NGC 1613 (page does not exist)">1613</a></li> <li><a href="/wiki/NGC_1614" title="NGC 1614">1614</a></li> <li><a href="/w/index.php?title=NGC_1615&action=edit&redlink=1" class="new" title="NGC 1615 (page does not exist)">1615</a></li> <li><a href="/wiki/NGC_1616" title="NGC 1616">1616</a></li> <li><a href="/w/index.php?title=NGC_1617&action=edit&redlink=1" class="new" title="NGC 1617 (page does not exist)">1617</a></li> <li><a href="/w/index.php?title=NGC_1618&action=edit&redlink=1" class="new" title="NGC 1618 (page does not exist)">1618</a></li> <li><a href="/wiki/NGC_1619" class="mw-redirect" title="NGC 1619">1619</a></li> <li><a href="/wiki/NGC_1620" title="NGC 1620">1620</a></li> <li><a href="/w/index.php?title=NGC_1621&action=edit&redlink=1" class="new" title="NGC 1621 (page does not exist)">1621</a></li> <li><a href="/w/index.php?title=NGC_1622&action=edit&redlink=1" class="new" title="NGC 1622 (page does not exist)">1622</a></li> <li><a href="/w/index.php?title=NGC_1623&action=edit&redlink=1" class="new" title="NGC 1623 (page does not exist)">1623</a></li> <li><a href="/wiki/NGC_1624" title="NGC 1624">1624</a></li> <li><a href="/w/index.php?title=NGC_1625&action=edit&redlink=1" class="new" title="NGC 1625 (page does not exist)">1625</a></li> <li><a href="/w/index.php?title=NGC_1626&action=edit&redlink=1" class="new" title="NGC 1626 (page does not exist)">1626</a></li> <li><a href="/w/index.php?title=NGC_1627&action=edit&redlink=1" class="new" title="NGC 1627 (page does not exist)">1627</a></li> <li><a href="/w/index.php?title=NGC_1628&action=edit&redlink=1" class="new" title="NGC 1628 (page does not exist)">1628</a></li> <li><a href="/w/index.php?title=NGC_1629&action=edit&redlink=1" class="new" title="NGC 1629 (page does not exist)">1629</a></li> <li><a href="/w/index.php?title=NGC_1630&action=edit&redlink=1" class="new" title="NGC 1630 (page does not exist)">1630</a></li> <li><a href="/w/index.php?title=NGC_1631&action=edit&redlink=1" class="new" title="NGC 1631 (page does not exist)">1631</a></li> <li><a href="/w/index.php?title=NGC_1632&action=edit&redlink=1" class="new" title="NGC 1632 (page does not exist)">1632</a></li> <li><a href="/w/index.php?title=NGC_1633&action=edit&redlink=1" class="new" title="NGC 1633 (page does not exist)">1633</a></li> <li><a href="/w/index.php?title=NGC_1634&action=edit&redlink=1" class="new" title="NGC 1634 (page does not exist)">1634</a></li> <li><a href="/w/index.php?title=NGC_1635&action=edit&redlink=1" class="new" title="NGC 1635 (page does not exist)">1635</a></li> <li><a href="/w/index.php?title=NGC_1636&action=edit&redlink=1" class="new" title="NGC 1636 (page does not exist)">1636</a></li> <li><a href="/wiki/NGC_1637" title="NGC 1637">1637</a></li> <li><a href="/w/index.php?title=NGC_1638&action=edit&redlink=1" class="new" title="NGC 1638 (page does not exist)">1638</a></li> <li><a href="/wiki/NGC_1639" class="mw-redirect" title="NGC 1639">1639</a></li> <li><a href="/w/index.php?title=NGC_1640&action=edit&redlink=1" class="new" title="NGC 1640 (page does not exist)">1640</a></li> <li><a href="/w/index.php?title=NGC_1641&action=edit&redlink=1" class="new" title="NGC 1641 (page does not exist)">1641</a></li> <li><a href="/wiki/NGC_1642" title="NGC 1642">1642</a></li> <li><a href="/w/index.php?title=NGC_1643&action=edit&redlink=1" class="new" title="NGC 1643 (page does not exist)">1643</a></li> <li><a href="/w/index.php?title=NGC_1644&action=edit&redlink=1" class="new" title="NGC 1644 (page does not exist)">1644</a></li> <li><a href="/w/index.php?title=NGC_1645&action=edit&redlink=1" class="new" title="NGC 1645 (page does not exist)">1645</a></li> <li><a href="/w/index.php?title=NGC_1646&action=edit&redlink=1" class="new" title="NGC 1646 (page does not exist)">1646</a></li> <li><a href="/wiki/NGC_1647" title="NGC 1647">1647</a></li> <li><a href="/w/index.php?title=NGC_1648&action=edit&redlink=1" class="new" title="NGC 1648 (page does not exist)">1648</a></li> <li><a href="/w/index.php?title=NGC_1649&action=edit&redlink=1" class="new" title="NGC 1649 (page does not exist)">1649</a></li> <li><a href="/w/index.php?title=NGC_1650&action=edit&redlink=1" class="new" title="NGC 1650 (page does not exist)">1650</a></li> <li><a href="/w/index.php?title=NGC_1651&action=edit&redlink=1" class="new" title="NGC 1651 (page does not exist)">1651</a></li> <li><a href="/w/index.php?title=NGC_1652&action=edit&redlink=1" class="new" title="NGC 1652 (page does not exist)">1652</a></li> <li><a href="/w/index.php?title=NGC_1653&action=edit&redlink=1" class="new" title="NGC 1653 (page does not exist)">1653</a></li> <li><a href="/w/index.php?title=NGC_1654&action=edit&redlink=1" class="new" title="NGC 1654 (page does not exist)">1654</a></li> <li><a href="/wiki/NGC_1655" class="mw-redirect" title="NGC 1655">1655</a></li> <li><a href="/w/index.php?title=NGC_1656&action=edit&redlink=1" class="new" title="NGC 1656 (page does not exist)">1656</a></li> <li><a href="/w/index.php?title=NGC_1657&action=edit&redlink=1" class="new" title="NGC 1657 (page does not exist)">1657</a></li> <li><a href="/w/index.php?title=NGC_1658&action=edit&redlink=1" class="new" title="NGC 1658 (page does not exist)">1658</a></li> <li><a href="/w/index.php?title=NGC_1659&action=edit&redlink=1" class="new" title="NGC 1659 (page does not exist)">1659</a></li> <li><a href="/w/index.php?title=NGC_1660&action=edit&redlink=1" class="new" title="NGC 1660 (page does not exist)">1660</a></li> <li><a href="/w/index.php?title=NGC_1661&action=edit&redlink=1" class="new" title="NGC 1661 (page does not exist)">1661</a></li> <li><a href="/wiki/NGC_1662" title="NGC 1662">1662</a></li> <li><a href="/w/index.php?title=NGC_1663&action=edit&redlink=1" class="new" title="NGC 1663 (page does not exist)">1663</a></li> <li><a href="/wiki/NGC_1664" title="NGC 1664">1664</a></li> <li><a href="/w/index.php?title=NGC_1665&action=edit&redlink=1" class="new" title="NGC 1665 (page does not exist)">1665</a></li> <li><a href="/w/index.php?title=NGC_1666&action=edit&redlink=1" class="new" title="NGC 1666 (page does not exist)">1666</a></li> <li><a href="/w/index.php?title=NGC_1667&action=edit&redlink=1" class="new" title="NGC 1667 (page does not exist)">1667</a></li> <li><a href="/w/index.php?title=NGC_1668&action=edit&redlink=1" class="new" title="NGC 1668 (page does not exist)">1668</a></li> <li><a href="/w/index.php?title=NGC_1669&action=edit&redlink=1" class="new" title="NGC 1669 (page does not exist)">1669</a></li> <li><a href="/w/index.php?title=NGC_1670&action=edit&redlink=1" class="new" title="NGC 1670 (page does not exist)">1670</a></li> <li><a href="/wiki/NGC_1671" class="mw-redirect" title="NGC 1671">1671</a></li> <li><a href="/wiki/NGC_1672" title="NGC 1672">1672</a></li> <li><a href="/w/index.php?title=NGC_1673&action=edit&redlink=1" class="new" title="NGC 1673 (page does not exist)">1673</a></li> <li><a href="/wiki/NGC_1674" class="mw-redirect" title="NGC 1674">1674</a></li> <li><a href="/wiki/NGC_1675" class="mw-redirect" title="NGC 1675">1675</a></li> <li><a href="/w/index.php?title=NGC_1676&action=edit&redlink=1" class="new" title="NGC 1676 (page does not exist)">1676</a></li> <li><a href="/w/index.php?title=NGC_1677&action=edit&redlink=1" class="new" title="NGC 1677 (page does not exist)">1677</a></li> <li><a href="/w/index.php?title=NGC_1678&action=edit&redlink=1" class="new" title="NGC 1678 (page does not exist)">1678</a></li> <li><a href="/w/index.php?title=NGC_1679&action=edit&redlink=1" class="new" title="NGC 1679 (page does not exist)">1679</a></li> <li><a href="/w/index.php?title=NGC_1680&action=edit&redlink=1" class="new" title="NGC 1680 (page does not exist)">1680</a></li> <li><a href="/w/index.php?title=NGC_1681&action=edit&redlink=1" class="new" title="NGC 1681 (page does not exist)">1681</a></li> <li><a href="/w/index.php?title=NGC_1682&action=edit&redlink=1" class="new" title="NGC 1682 (page does not exist)">1682</a></li> <li><a href="/wiki/NGC_1683" title="NGC 1683">1683</a></li> <li><a href="/w/index.php?title=NGC_1684&action=edit&redlink=1" class="new" title="NGC 1684 (page does not exist)">1684</a></li> <li><a href="/w/index.php?title=NGC_1685&action=edit&redlink=1" class="new" title="NGC 1685 (page does not exist)">1685</a></li> <li><a href="/w/index.php?title=NGC_1686&action=edit&redlink=1" class="new" title="NGC 1686 (page does not exist)">1686</a></li> <li><a href="/w/index.php?title=NGC_1687&action=edit&redlink=1" class="new" title="NGC 1687 (page does not exist)">1687</a></li> <li><a href="/w/index.php?title=NGC_1688&action=edit&redlink=1" class="new" title="NGC 1688 (page does not exist)">1688</a></li> <li><a href="/w/index.php?title=NGC_1689&action=edit&redlink=1" class="new" title="NGC 1689 (page does not exist)">1689</a></li> <li><a href="/w/index.php?title=NGC_1690&action=edit&redlink=1" class="new" title="NGC 1690 (page does not exist)">1690</a></li> <li><a href="/w/index.php?title=NGC_1691&action=edit&redlink=1" class="new" title="NGC 1691 (page does not exist)">1691</a></li> <li><a href="/w/index.php?title=NGC_1692&action=edit&redlink=1" class="new" title="NGC 1692 (page does not exist)">1692</a></li> <li><a href="/w/index.php?title=NGC_1693&action=edit&redlink=1" class="new" title="NGC 1693 (page does not exist)">1693</a></li> <li><a href="/w/index.php?title=NGC_1694&action=edit&redlink=1" class="new" title="NGC 1694 (page does not exist)">1694</a></li> <li><a href="/w/index.php?title=NGC_1695&action=edit&redlink=1" class="new" title="NGC 1695 (page does not exist)">1695</a></li> <li><a href="/w/index.php?title=NGC_1696&action=edit&redlink=1" class="new" title="NGC 1696 (page does not exist)">1696</a></li> <li><a href="/w/index.php?title=NGC_1697&action=edit&redlink=1" class="new" title="NGC 1697 (page does not exist)">1697</a></li> <li><a href="/w/index.php?title=NGC_1698&action=edit&redlink=1" class="new" title="NGC 1698 (page does not exist)">1698</a></li> <li><a href="/w/index.php?title=NGC_1699&action=edit&redlink=1" class="new" title="NGC 1699 (page does not exist)">1699</a></li> <li><a href="/w/index.php?title=NGC_1700&action=edit&redlink=1" class="new" title="NGC 1700 (page does not exist)">1700</a></li> <li><a href="/wiki/NGC_1701" title="NGC 1701">1701</a></li> <li><a href="/w/index.php?title=NGC_1702&action=edit&redlink=1" class="new" title="NGC 1702 (page does not exist)">1702</a></li> <li><a href="/w/index.php?title=NGC_1703&action=edit&redlink=1" class="new" title="NGC 1703 (page does not exist)">1703</a></li> <li><a href="/w/index.php?title=NGC_1704&action=edit&redlink=1" class="new" title="NGC 1704 (page does not exist)">1704</a></li> <li><a href="/wiki/NGC_1705" title="NGC 1705">1705</a></li> <li><a href="/w/index.php?title=NGC_1706&action=edit&redlink=1" class="new" title="NGC 1706 (page does not exist)">1706</a></li> <li><a href="/wiki/NGC_1707" class="mw-redirect" title="NGC 1707">1707</a></li> <li><a href="/w/index.php?title=NGC_1708&action=edit&redlink=1" class="new" title="NGC 1708 (page does not exist)">1708</a></li> <li><a href="/w/index.php?title=NGC_1709&action=edit&redlink=1" class="new" title="NGC 1709 (page does not exist)">1709</a></li> <li><a href="/w/index.php?title=NGC_1710&action=edit&redlink=1" class="new" title="NGC 1710 (page does not exist)">1710</a></li> <li><a href="/w/index.php?title=NGC_1711&action=edit&redlink=1" class="new" title="NGC 1711 (page does not exist)">1711</a></li> <li><a href="/wiki/NGC_1712" title="NGC 1712">1712</a></li> <li><a href="/w/index.php?title=NGC_1713&action=edit&redlink=1" class="new" title="NGC 1713 (page does not exist)">1713</a></li> <li><a href="/wiki/NGC_1714" title="NGC 1714">1714</a></li> <li><a href="/w/index.php?title=NGC_1715&action=edit&redlink=1" class="new" title="NGC 1715 (page does not exist)">1715</a></li> <li><a href="/w/index.php?title=NGC_1716&action=edit&redlink=1" class="new" title="NGC 1716 (page does not exist)">1716</a></li> <li><a href="/w/index.php?title=NGC_1717&action=edit&redlink=1" class="new" title="NGC 1717 (page does not exist)">1717</a></li> <li><a href="/w/index.php?title=NGC_1718&action=edit&redlink=1" class="new" title="NGC 1718 (page does not exist)">1718</a></li> <li><a href="/w/index.php?title=NGC_1719&action=edit&redlink=1" class="new" title="NGC 1719 (page does not exist)">1719</a></li> <li><a href="/w/index.php?title=NGC_1720&action=edit&redlink=1" class="new" title="NGC 1720 (page does not exist)">1720</a></li> <li><a href="/wiki/NGC_1721" title="NGC 1721">1721</a></li> <li><a href="/w/index.php?title=NGC_1722&action=edit&redlink=1" class="new" title="NGC 1722 (page does not exist)">1722</a></li> <li><a href="/wiki/NGC_1723" title="NGC 1723">1723</a></li> <li><a href="/wiki/NGC_1724" class="mw-redirect" title="NGC 1724">1724</a></li> <li><a href="/wiki/NGC_1725" title="NGC 1725">1725</a></li> <li><a href="/w/index.php?title=NGC_1726&action=edit&redlink=1" class="new" title="NGC 1726 (page does not exist)">1726</a></li> <li><a href="/w/index.php?title=NGC_1727&action=edit&redlink=1" class="new" title="NGC 1727 (page does not exist)">1727</a></li> <li><a href="/wiki/NGC_1728" title="NGC 1728">1728</a></li> <li><a href="/w/index.php?title=NGC_1729&action=edit&redlink=1" class="new" title="NGC 1729 (page does not exist)">1729</a></li> <li><a href="/w/index.php?title=NGC_1730&action=edit&redlink=1" class="new" title="NGC 1730 (page does not exist)">1730</a></li> <li><a href="/w/index.php?title=NGC_1731&action=edit&redlink=1" class="new" title="NGC 1731 (page does not exist)">1731</a></li> <li><a href="/w/index.php?title=NGC_1732&action=edit&redlink=1" class="new" title="NGC 1732 (page does not exist)">1732</a></li> <li><a href="/w/index.php?title=NGC_1733&action=edit&redlink=1" class="new" title="NGC 1733 (page does not exist)">1733</a></li> <li><a href="/w/index.php?title=NGC_1734&action=edit&redlink=1" class="new" title="NGC 1734 (page does not exist)">1734</a></li> <li><a href="/w/index.php?title=NGC_1735&action=edit&redlink=1" class="new" title="NGC 1735 (page does not exist)">1735</a></li> <li><a href="/w/index.php?title=NGC_1736&action=edit&redlink=1" class="new" title="NGC 1736 (page does not exist)">1736</a></li> <li><a href="/w/index.php?title=NGC_1737&action=edit&redlink=1" class="new" title="NGC 1737 (page does not exist)">1737</a></li> <li><a href="/w/index.php?title=NGC_1738&action=edit&redlink=1" class="new" title="NGC 1738 (page does not exist)">1738</a></li> <li><a href="/w/index.php?title=NGC_1739&action=edit&redlink=1" class="new" title="NGC 1739 (page does not exist)">1739</a></li> <li><a href="/w/index.php?title=NGC_1740&action=edit&redlink=1" class="new" title="NGC 1740 (page does not exist)">1740</a></li> <li><a href="/wiki/NGC_1741" title="NGC 1741">1741</a></li> <li><a href="/wiki/NGC_1742" class="mw-redirect" title="NGC 1742">1742</a></li> <li><a href="/w/index.php?title=NGC_1743&action=edit&redlink=1" class="new" title="NGC 1743 (page does not exist)">1743</a></li> <li><a href="/w/index.php?title=NGC_1744&action=edit&redlink=1" class="new" title="NGC 1744 (page does not exist)">1744</a></li> <li><a href="/w/index.php?title=NGC_1745&action=edit&redlink=1" class="new" title="NGC 1745 (page does not exist)">1745</a></li> <li><a href="/wiki/NGC_1746" title="NGC 1746">1746</a></li> <li><a href="/w/index.php?title=NGC_1747&action=edit&redlink=1" class="new" title="NGC 1747 (page does not exist)">1747</a></li> <li><a href="/w/index.php?title=NGC_1748&action=edit&redlink=1" class="new" title="NGC 1748 (page does not exist)">1748</a></li> <li><a href="/w/index.php?title=NGC_1749&action=edit&redlink=1" class="new" title="NGC 1749 (page does not exist)">1749</a></li> <li><a href="/w/index.php?title=NGC_1750&action=edit&redlink=1" class="new" title="NGC 1750 (page does not exist)">1750</a></li> <li><a href="/w/index.php?title=NGC_1751&action=edit&redlink=1" class="new" title="NGC 1751 (page does not exist)">1751</a></li> <li><a href="/w/index.php?title=NGC_1752&action=edit&redlink=1" class="new" title="NGC 1752 (page does not exist)">1752</a></li> <li><a href="/w/index.php?title=NGC_1753&action=edit&redlink=1" class="new" title="NGC 1753 (page does not exist)">1753</a></li> <li><a href="/w/index.php?title=NGC_1754&action=edit&redlink=1" class="new" title="NGC 1754 (page does not exist)">1754</a></li> <li><a href="/wiki/NGC_1755" title="NGC 1755">1755</a></li> <li><a href="/w/index.php?title=NGC_1756&action=edit&redlink=1" class="new" title="NGC 1756 (page does not exist)">1756</a></li> <li><a href="/wiki/NGC_1757" class="mw-redirect" title="NGC 1757">1757</a></li> <li><a href="/w/index.php?title=NGC_1758&action=edit&redlink=1" class="new" title="NGC 1758 (page does not exist)">1758</a></li> <li><a href="/w/index.php?title=NGC_1759&action=edit&redlink=1" class="new" title="NGC 1759 (page does not exist)">1759</a></li> <li><a href="/w/index.php?title=NGC_1760&action=edit&redlink=1" class="new" title="NGC 1760 (page does not exist)">1760</a></li> <li><a href="/wiki/NGC_1761" title="NGC 1761">1761</a></li> <li><a href="/w/index.php?title=NGC_1762&action=edit&redlink=1" class="new" title="NGC 1762 (page does not exist)">1762</a></li> <li><a href="/wiki/NGC_1763" title="NGC 1763">1763</a></li> <li><a href="/w/index.php?title=NGC_1764&action=edit&redlink=1" class="new" title="NGC 1764 (page does not exist)">1764</a></li> <li><a href="/w/index.php?title=NGC_1765&action=edit&redlink=1" class="new" title="NGC 1765 (page does not exist)">1765</a></li> <li><a href="/w/index.php?title=NGC_1766&action=edit&redlink=1" class="new" title="NGC 1766 (page does not exist)">1766</a></li> <li><a href="/w/index.php?title=NGC_1767&action=edit&redlink=1" class="new" title="NGC 1767 (page does not exist)">1767</a></li> <li><a href="/w/index.php?title=NGC_1768&action=edit&redlink=1" class="new" title="NGC 1768 (page does not exist)">1768</a></li> <li><a href="/w/index.php?title=NGC_1769&action=edit&redlink=1" class="new" title="NGC 1769 (page does not exist)">1769</a></li> <li><a href="/w/index.php?title=NGC_1770&action=edit&redlink=1" class="new" title="NGC 1770 (page does not exist)">1770</a></li> <li><a href="/w/index.php?title=NGC_1771&action=edit&redlink=1" class="new" title="NGC 1771 (page does not exist)">1771</a></li> <li><a href="/w/index.php?title=NGC_1772&action=edit&redlink=1" class="new" title="NGC 1772 (page does not exist)">1772</a></li> <li><a href="/w/index.php?title=NGC_1773&action=edit&redlink=1" class="new" title="NGC 1773 (page does not exist)">1773</a></li> <li><a href="/w/index.php?title=NGC_1774&action=edit&redlink=1" class="new" title="NGC 1774 (page does not exist)">1774</a></li> <li><a href="/w/index.php?title=NGC_1775&action=edit&redlink=1" class="new" title="NGC 1775 (page does not exist)">1775</a></li> <li><a href="/w/index.php?title=NGC_1776&action=edit&redlink=1" class="new" title="NGC 1776 (page does not exist)">1776</a></li> <li><a href="/w/index.php?title=NGC_1777&action=edit&redlink=1" class="new" title="NGC 1777 (page does not exist)">1777</a></li> <li><a href="/w/index.php?title=NGC_1778&action=edit&redlink=1" class="new" title="NGC 1778 (page does not exist)">1778</a></li> <li><a href="/w/index.php?title=NGC_1779&action=edit&redlink=1" class="new" title="NGC 1779 (page does not exist)">1779</a></li> <li><a href="/w/index.php?title=NGC_1780&action=edit&redlink=1" class="new" title="NGC 1780 (page does not exist)">1780</a></li> <li><a href="/w/index.php?title=NGC_1781&action=edit&redlink=1" class="new" title="NGC 1781 (page does not exist)">1781</a></li> <li><a href="/w/index.php?title=NGC_1782&action=edit&redlink=1" class="new" title="NGC 1782 (page does not exist)">1782</a></li> <li><a href="/wiki/NGC_1783" title="NGC 1783">1783</a></li> <li><a href="/w/index.php?title=NGC_1784&action=edit&redlink=1" class="new" title="NGC 1784 (page does not exist)">1784</a></li> <li><a href="/w/index.php?title=NGC_1785&action=edit&redlink=1" class="new" title="NGC 1785 (page does not exist)">1785</a></li> <li><a href="/w/index.php?title=NGC_1786&action=edit&redlink=1" class="new" title="NGC 1786 (page does not exist)">1786</a></li> <li><a href="/w/index.php?title=NGC_1787&action=edit&redlink=1" class="new" title="NGC 1787 (page does not exist)">1787</a></li> <li><a href="/wiki/NGC_1788" title="NGC 1788">1788</a></li> <li><a href="/w/index.php?title=NGC_1789&action=edit&redlink=1" class="new" title="NGC 1789 (page does not exist)">1789</a></li> <li><a href="/wiki/NGC_1790" class="mw-redirect" title="NGC 1790">1790</a></li> <li><a href="/w/index.php?title=NGC_1791&action=edit&redlink=1" class="new" title="NGC 1791 (page does not exist)">1791</a></li> <li><a href="/wiki/NGC_1792" title="NGC 1792">1792</a></li> <li><a href="/w/index.php?title=NGC_1793&action=edit&redlink=1" class="new" title="NGC 1793 (page does not exist)">1793</a></li> <li><a href="/w/index.php?title=NGC_1794&action=edit&redlink=1" class="new" title="NGC 1794 (page does not exist)">1794</a></li> <li><a href="/w/index.php?title=NGC_1795&action=edit&redlink=1" class="new" title="NGC 1795 (page does not exist)">1795</a></li> <li><a href="/w/index.php?title=NGC_1796&action=edit&redlink=1" class="new" title="NGC 1796 (page does not exist)">1796</a></li> <li><a href="/w/index.php?title=NGC_1797&action=edit&redlink=1" class="new" title="NGC 1797 (page does not exist)">1797</a></li> <li><a href="/w/index.php?title=NGC_1798&action=edit&redlink=1" class="new" title="NGC 1798 (page does not exist)">1798</a></li> <li><a href="/w/index.php?title=NGC_1799&action=edit&redlink=1" class="new" title="NGC 1799 (page does not exist)">1799</a></li> <li><a href="/w/index.php?title=NGC_1800&action=edit&redlink=1" class="new" title="NGC 1800 (page does not exist)">1800</a></li> <li><a href="/w/index.php?title=NGC_1801&action=edit&redlink=1" class="new" title="NGC 1801 (page does not exist)">1801</a></li> <li><a href="/w/index.php?title=NGC_1802&action=edit&redlink=1" class="new" title="NGC 1802 (page does not exist)">1802</a></li> <li><a href="/wiki/NGC_1803" title="NGC 1803">1803</a></li> <li><a href="/w/index.php?title=NGC_1804&action=edit&redlink=1" class="new" title="NGC 1804 (page does not exist)">1804</a></li> <li><a href="/w/index.php?title=NGC_1805&action=edit&redlink=1" class="new" title="NGC 1805 (page does not exist)">1805</a></li> <li><a href="/wiki/NGC_1806" title="NGC 1806">1806</a></li> <li><a href="/wiki/NGC_1807" title="NGC 1807">1807</a></li> <li><a href="/wiki/NGC_1808" title="NGC 1808">1808</a></li> <li><a href="/w/index.php?title=NGC_1809&action=edit&redlink=1" class="new" title="NGC 1809 (page does not exist)">1809</a></li> <li><a href="/w/index.php?title=NGC_1810&action=edit&redlink=1" class="new" title="NGC 1810 (page does not exist)">1810</a></li> <li><a href="/w/index.php?title=NGC_1811&action=edit&redlink=1" class="new" title="NGC 1811 (page does not exist)">1811</a></li> <li><a href="/w/index.php?title=NGC_1812&action=edit&redlink=1" class="new" title="NGC 1812 (page does not exist)">1812</a></li> <li><a href="/w/index.php?title=NGC_1813&action=edit&redlink=1" class="new" title="NGC 1813 (page does not exist)">1813</a></li> <li><a href="/w/index.php?title=NGC_1814&action=edit&redlink=1" class="new" title="NGC 1814 (page does not exist)">1814</a></li> <li><a href="/w/index.php?title=NGC_1815&action=edit&redlink=1" class="new" title="NGC 1815 (page does not exist)">1815</a></li> <li><a href="/w/index.php?title=NGC_1816&action=edit&redlink=1" class="new" title="NGC 1816 (page does not exist)">1816</a></li> <li><a href="/wiki/NGC_1817" title="NGC 1817">1817</a></li> <li><a href="/wiki/NGC_1818" title="NGC 1818">1818</a></li> <li><a href="/wiki/NGC_1819" title="NGC 1819">1819</a></li> <li><a href="/wiki/NGC_1820" title="NGC 1820">1820</a></li> <li><a href="/w/index.php?title=NGC_1821&action=edit&redlink=1" class="new" title="NGC 1821 (page does not exist)">1821</a></li> <li><a href="/w/index.php?title=NGC_1822&action=edit&redlink=1" class="new" title="NGC 1822 (page does not exist)">1822</a></li> <li><a href="/w/index.php?title=NGC_1823&action=edit&redlink=1" class="new" title="NGC 1823 (page does not exist)">1823</a></li> <li><a href="/w/index.php?title=NGC_1824&action=edit&redlink=1" class="new" title="NGC 1824 (page does not exist)">1824</a></li> <li><a href="/w/index.php?title=NGC_1825&action=edit&redlink=1" class="new" title="NGC 1825 (page does not exist)">1825</a></li> <li><a href="/w/index.php?title=NGC_1826&action=edit&redlink=1" class="new" title="NGC 1826 (page does not exist)">1826</a></li> <li><a href="/w/index.php?title=NGC_1827&action=edit&redlink=1" class="new" title="NGC 1827 (page does not exist)">1827</a></li> <li><a href="/w/index.php?title=NGC_1828&action=edit&redlink=1" class="new" title="NGC 1828 (page does not exist)">1828</a></li> <li><a href="/w/index.php?title=NGC_1829&action=edit&redlink=1" class="new" title="NGC 1829 (page does not exist)">1829</a></li> <li><a href="/w/index.php?title=NGC_1830&action=edit&redlink=1" class="new" title="NGC 1830 (page does not exist)">1830</a></li> <li><a href="/w/index.php?title=NGC_1831&action=edit&redlink=1" class="new" title="NGC 1831 (page does not exist)">1831</a></li> <li><a href="/w/index.php?title=NGC_1832&action=edit&redlink=1" class="new" title="NGC 1832 (page does not exist)">1832</a></li> <li><a href="/w/index.php?title=NGC_1833&action=edit&redlink=1" class="new" title="NGC 1833 (page does not exist)">1833</a></li> <li><a href="/w/index.php?title=NGC_1834&action=edit&redlink=1" class="new" title="NGC 1834 (page does not exist)">1834</a></li> <li><a href="/w/index.php?title=NGC_1835&action=edit&redlink=1" class="new" title="NGC 1835 (page does not exist)">1835</a></li> <li><a href="/w/index.php?title=NGC_1836&action=edit&redlink=1" class="new" title="NGC 1836 (page does not exist)">1836</a></li> <li><a href="/w/index.php?title=NGC_1837&action=edit&redlink=1" class="new" title="NGC 1837 (page does not exist)">1837</a></li> <li><a href="/w/index.php?title=NGC_1838&action=edit&redlink=1" class="new" title="NGC 1838 (page does not exist)">1838</a></li> <li><a href="/w/index.php?title=NGC_1839&action=edit&redlink=1" class="new" title="NGC 1839 (page does not exist)">1839</a></li> <li><a href="/w/index.php?title=NGC_1840&action=edit&redlink=1" class="new" title="NGC 1840 (page does not exist)">1840</a></li> <li><a href="/w/index.php?title=NGC_1841&action=edit&redlink=1" class="new" title="NGC 1841 (page does not exist)">1841</a></li> <li><a href="/w/index.php?title=NGC_1842&action=edit&redlink=1" class="new" title="NGC 1842 (page does not exist)">1842</a></li> <li><a href="/w/index.php?title=NGC_1843&action=edit&redlink=1" class="new" title="NGC 1843 (page does not exist)">1843</a></li> <li><a href="/w/index.php?title=NGC_1844&action=edit&redlink=1" class="new" title="NGC 1844 (page does not exist)">1844</a></li> <li><a href="/w/index.php?title=NGC_1845&action=edit&redlink=1" class="new" title="NGC 1845 (page does not exist)">1845</a></li> <li><a href="/wiki/NGC_1846" title="NGC 1846">1846</a></li> <li><a href="/wiki/NGC_1847" title="NGC 1847">1847</a></li> <li><a href="/wiki/NGC_1848" class="mw-redirect" title="NGC 1848">1848</a></li> <li><a href="/w/index.php?title=NGC_1849&action=edit&redlink=1" class="new" title="NGC 1849 (page does not exist)">1849</a></li> <li><a href="/wiki/NGC_1850" title="NGC 1850">1850</a></li> <li><a href="/wiki/NGC_1851" title="NGC 1851">1851</a></li> <li><a href="/wiki/NGC_1852" title="NGC 1852">1852</a></li> <li><a href="/w/index.php?title=NGC_1853&action=edit&redlink=1" class="new" title="NGC 1853 (page does not exist)">1853</a></li> <li><a href="/wiki/NGC_1854" title="NGC 1854">1854</a></li> <li><a href="/wiki/NGC_1855" class="mw-redirect" title="NGC 1855">1855</a></li> <li><a href="/wiki/NGC_1856" title="NGC 1856">1856</a></li> <li><a href="/w/index.php?title=NGC_1857&action=edit&redlink=1" class="new" title="NGC 1857 (page does not exist)">1857</a></li> <li><a href="/wiki/NGC_1858" title="NGC 1858">1858</a></li> <li><a href="/wiki/NGC_1859" title="NGC 1859">1859</a></li> <li><a href="/wiki/NGC_1860" title="NGC 1860">1860</a></li> <li><a href="/w/index.php?title=NGC_1861&action=edit&redlink=1" class="new" title="NGC 1861 (page does not exist)">1861</a></li> <li><a href="/w/index.php?title=NGC_1862&action=edit&redlink=1" class="new" title="NGC 1862 (page does not exist)">1862</a></li> <li><a href="/w/index.php?title=NGC_1863&action=edit&redlink=1" class="new" title="NGC 1863 (page does not exist)">1863</a></li> <li><a href="/w/index.php?title=NGC_1864&action=edit&redlink=1" class="new" title="NGC 1864 (page does not exist)">1864</a></li> <li><a href="/w/index.php?title=NGC_1865&action=edit&redlink=1" class="new" title="NGC 1865 (page does not exist)">1865</a></li> <li><a href="/wiki/NGC_1866" title="NGC 1866">1866</a></li> <li><a href="/w/index.php?title=NGC_1867&action=edit&redlink=1" class="new" title="NGC 1867 (page does not exist)">1867</a></li> <li><a href="/wiki/NGC_1868" title="NGC 1868">1868</a></li> <li><a href="/wiki/NGC_1869" title="NGC 1869">1869</a></li> <li><a href="/w/index.php?title=NGC_1870&action=edit&redlink=1" class="new" title="NGC 1870 (page does not exist)">1870</a></li> <li><a href="/wiki/NGC_1871" title="NGC 1871">1871</a></li> <li><a href="/wiki/NGC_1872" title="NGC 1872">1872</a></li> <li><a href="/wiki/NGC_1873" title="NGC 1873">1873</a></li> <li><a href="/w/index.php?title=NGC_1874&action=edit&redlink=1" class="new" title="NGC 1874 (page does not exist)">1874</a></li> <li><a href="/w/index.php?title=NGC_1875&action=edit&redlink=1" class="new" title="NGC 1875 (page does not exist)">1875</a></li> <li><a href="/w/index.php?title=NGC_1876&action=edit&redlink=1" class="new" title="NGC 1876 (page does not exist)">1876</a></li> <li><a href="/w/index.php?title=NGC_1877&action=edit&redlink=1" class="new" title="NGC 1877 (page does not exist)">1877</a></li> <li><a href="/w/index.php?title=NGC_1878&action=edit&redlink=1" class="new" title="NGC 1878 (page does not exist)">1878</a></li> <li><a href="/w/index.php?title=NGC_1879&action=edit&redlink=1" class="new" title="NGC 1879 (page does not exist)">1879</a></li> <li><a href="/w/index.php?title=NGC_1880&action=edit&redlink=1" class="new" title="NGC 1880 (page does not exist)">1880</a></li> <li><a href="/w/index.php?title=NGC_1881&action=edit&redlink=1" class="new" title="NGC 1881 (page does not exist)">1881</a></li> <li><a href="/w/index.php?title=NGC_1882&action=edit&redlink=1" class="new" title="NGC 1882 (page does not exist)">1882</a></li> <li><a href="/w/index.php?title=NGC_1883&action=edit&redlink=1" class="new" title="NGC 1883 (page does not exist)">1883</a></li> <li><a href="/wiki/NGC_1884" class="mw-redirect" title="NGC 1884">1884</a></li> <li><a href="/w/index.php?title=NGC_1885&action=edit&redlink=1" class="new" title="NGC 1885 (page does not exist)">1885</a></li> <li><a href="/w/index.php?title=NGC_1886&action=edit&redlink=1" class="new" title="NGC 1886 (page does not exist)">1886</a></li> <li><a href="/w/index.php?title=NGC_1887&action=edit&redlink=1" class="new" title="NGC 1887 (page does not exist)">1887</a></li> <li><a href="/w/index.php?title=NGC_1888&action=edit&redlink=1" class="new" title="NGC 1888 (page does not exist)">1888</a></li> <li><a href="/w/index.php?title=NGC_1889&action=edit&redlink=1" class="new" title="NGC 1889 (page does not exist)">1889</a></li> <li><a href="/w/index.php?title=NGC_1890&action=edit&redlink=1" class="new" title="NGC 1890 (page does not exist)">1890</a></li> <li><a href="/wiki/NGC_1891" class="mw-redirect" title="NGC 1891">1891</a></li> <li><a href="/wiki/NGC_1892" title="NGC 1892">1892</a></li> <li><a href="/wiki/NGC_1893" title="NGC 1893">1893</a></li> <li><a href="/w/index.php?title=NGC_1894&action=edit&redlink=1" class="new" title="NGC 1894 (page does not exist)">1894</a></li> <li><a href="/w/index.php?title=NGC_1895&action=edit&redlink=1" class="new" title="NGC 1895 (page does not exist)">1895</a></li> <li><a href="/w/index.php?title=NGC_1896&action=edit&redlink=1" class="new" title="NGC 1896 (page does not exist)">1896</a></li> <li><a href="/w/index.php?title=NGC_1897&action=edit&redlink=1" class="new" title="NGC 1897 (page does not exist)">1897</a></li> <li><a href="/wiki/NGC_1898" title="NGC 1898">1898</a></li> <li><a href="/w/index.php?title=NGC_1899&action=edit&redlink=1" class="new" title="NGC 1899 (page does not exist)">1899</a></li> <li><a href="/w/index.php?title=NGC_1900&action=edit&redlink=1" class="new" title="NGC 1900 (page does not exist)">1900</a></li> <li><a href="/wiki/NGC_1901" title="NGC 1901">1901</a></li> <li><a href="/w/index.php?title=NGC_1902&action=edit&redlink=1" class="new" title="NGC 1902 (page does not exist)">1902</a></li> <li><a href="/wiki/NGC_1903" title="NGC 1903">1903</a></li> <li><a href="/wiki/Messier_79" title="Messier 79">1904</a></li> <li><a href="/w/index.php?title=NGC_1905&action=edit&redlink=1" class="new" title="NGC 1905 (page does not exist)">1905</a></li> <li><a href="/w/index.php?title=NGC_1906&action=edit&redlink=1" class="new" title="NGC 1906 (page does not exist)">1906</a></li> <li><a href="/wiki/NGC_1907" title="NGC 1907">1907</a></li> <li><a href="/wiki/NGC_1908" class="mw-redirect" title="NGC 1908">1908</a></li> <li><a href="/wiki/NGC_1909" class="mw-redirect" title="NGC 1909">1909</a></li> <li><a href="/wiki/NGC_1910" title="NGC 1910">1910</a></li> <li><a href="/w/index.php?title=NGC_1911&action=edit&redlink=1" class="new" title="NGC 1911 (page does not exist)">1911</a></li> <li><a href="/wiki/Messier_38" title="Messier 38">1912</a></li> <li><a href="/w/index.php?title=NGC_1913&action=edit&redlink=1" class="new" title="NGC 1913 (page does not exist)">1913</a></li> <li><a href="/w/index.php?title=NGC_1914&action=edit&redlink=1" class="new" title="NGC 1914 (page does not exist)">1914</a></li> <li><a href="/w/index.php?title=NGC_1915&action=edit&redlink=1" class="new" title="NGC 1915 (page does not exist)">1915</a></li> <li><a href="/w/index.php?title=NGC_1916&action=edit&redlink=1" class="new" title="NGC 1916 (page does not exist)">1916</a></li> <li><a href="/w/index.php?title=NGC_1917&action=edit&redlink=1" class="new" title="NGC 1917 (page does not exist)">1917</a></li> <li><a href="/w/index.php?title=NGC_1918&action=edit&redlink=1" class="new" title="NGC 1918 (page does not exist)">1918</a></li> <li><a href="/w/index.php?title=NGC_1919&action=edit&redlink=1" class="new" title="NGC 1919 (page does not exist)">1919</a></li> <li><a href="/w/index.php?title=NGC_1920&action=edit&redlink=1" class="new" title="NGC 1920 (page does not exist)">1920</a></li> <li><a href="/w/index.php?title=NGC_1921&action=edit&redlink=1" class="new" title="NGC 1921 (page does not exist)">1921</a></li> <li><a href="/w/index.php?title=NGC_1922&action=edit&redlink=1" class="new" title="NGC 1922 (page does not exist)">1922</a></li> <li><a href="/w/index.php?title=NGC_1923&action=edit&redlink=1" class="new" title="NGC 1923 (page does not exist)">1923</a></li> <li><a href="/wiki/NGC_1924" title="NGC 1924">1924</a></li> <li><a href="/w/index.php?title=NGC_1925&action=edit&redlink=1" class="new" title="NGC 1925 (page does not exist)">1925</a></li> <li><a href="/w/index.php?title=NGC_1926&action=edit&redlink=1" class="new" title="NGC 1926 (page does not exist)">1926</a></li> <li><a href="/wiki/NGC_1927" class="mw-redirect" title="NGC 1927">1927</a></li> <li><a href="/w/index.php?title=NGC_1928&action=edit&redlink=1" class="new" title="NGC 1928 (page does not exist)">1928</a></li> <li><a href="/wiki/NGC_1929" title="NGC 1929">1929</a></li> <li><a href="/w/index.php?title=NGC_1930&action=edit&redlink=1" class="new" title="NGC 1930 (page does not exist)">1930</a></li> <li><a href="/wiki/NGC_1931" title="NGC 1931">1931</a></li> <li><a href="/wiki/NGC_1932" class="mw-redirect" title="NGC 1932">1932</a></li> <li><a href="/w/index.php?title=NGC_1933&action=edit&redlink=1" class="new" title="NGC 1933 (page does not exist)">1933</a></li> <li><a href="/wiki/NGC_1934" title="NGC 1934">1934</a></li> <li><a href="/wiki/NGC_1935" title="NGC 1935">1935</a></li> <li><a href="/wiki/NGC_1936" title="NGC 1936">1936</a></li> <li><a href="/w/index.php?title=NGC_1937&action=edit&redlink=1" class="new" title="NGC 1937 (page does not exist)">1937</a></li> <li><a href="/w/index.php?title=NGC_1938&action=edit&redlink=1" class="new" title="NGC 1938 (page does not exist)">1938</a></li> <li><a href="/w/index.php?title=NGC_1939&action=edit&redlink=1" class="new" title="NGC 1939 (page does not exist)">1939</a></li> <li><a href="/w/index.php?title=NGC_1940&action=edit&redlink=1" class="new" title="NGC 1940 (page does not exist)">1940</a></li> <li><a href="/w/index.php?title=NGC_1941&action=edit&redlink=1" class="new" title="NGC 1941 (page does not exist)">1941</a></li> <li><a href="/w/index.php?title=NGC_1942&action=edit&redlink=1" class="new" title="NGC 1942 (page does not exist)">1942</a></li> <li><a href="/wiki/NGC_1943" title="NGC 1943">1943</a></li> <li><a href="/w/index.php?title=NGC_1944&action=edit&redlink=1" class="new" title="NGC 1944 (page does not exist)">1944</a></li> <li><a href="/w/index.php?title=NGC_1945&action=edit&redlink=1" class="new" title="NGC 1945 (page does not exist)">1945</a></li> <li><a href="/w/index.php?title=NGC_1946&action=edit&redlink=1" class="new" title="NGC 1946 (page does not exist)">1946</a></li> <li><a href="/wiki/NGC_1947" title="NGC 1947">1947</a></li> <li><a href="/w/index.php?title=NGC_1948&action=edit&redlink=1" class="new" title="NGC 1948 (page does not exist)">1948</a></li> <li><a href="/w/index.php?title=NGC_1949&action=edit&redlink=1" class="new" title="NGC 1949 (page does not exist)">1949</a></li> <li><a href="/w/index.php?title=NGC_1950&action=edit&redlink=1" class="new" title="NGC 1950 (page does not exist)">1950</a></li> <li><a href="/w/index.php?title=NGC_1951&action=edit&redlink=1" class="new" title="NGC 1951 (page does not exist)">1951</a></li> <li><a href="/wiki/Crab_Nebula" title="Crab Nebula">1952</a></li> <li><a href="/w/index.php?title=NGC_1953&action=edit&redlink=1" class="new" title="NGC 1953 (page does not exist)">1953</a></li> <li><a href="/wiki/NGC_1954" title="NGC 1954">1954</a></li> <li><a href="/wiki/NGC_1955" title="NGC 1955">1955</a></li> <li><a href="/w/index.php?title=NGC_1956&action=edit&redlink=1" class="new" title="NGC 1956 (page does not exist)">1956</a></li> <li><a href="/w/index.php?title=NGC_1957&action=edit&redlink=1" class="new" title="NGC 1957 (page does not exist)">1957</a></li> <li><a href="/w/index.php?title=NGC_1958&action=edit&redlink=1" class="new" title="NGC 1958 (page does not exist)">1958</a></li> <li><a href="/wiki/NGC_1959" title="NGC 1959">1959</a></li> <li><a href="/wiki/Messier_36" title="Messier 36">1960</a></li> <li><a href="/wiki/NGC_1961" title="NGC 1961">1961</a></li> <li><a href="/w/index.php?title=NGC_1962&action=edit&redlink=1" class="new" title="NGC 1962 (page does not exist)">1962</a></li> <li><a href="/wiki/NGC_1963" class="mw-redirect" title="NGC 1963">1963</a></li> <li><a href="/wiki/NGC_1964" title="NGC 1964">1964</a></li> <li><a href="/w/index.php?title=NGC_1965&action=edit&redlink=1" class="new" title="NGC 1965 (page does not exist)">1965</a></li> <li><a href="/w/index.php?title=NGC_1966&action=edit&redlink=1" class="new" title="NGC 1966 (page does not exist)">1966</a></li> <li><a href="/w/index.php?title=NGC_1967&action=edit&redlink=1" class="new" title="NGC 1967 (page does not exist)">1967</a></li> <li><a href="/w/index.php?title=NGC_1968&action=edit&redlink=1" class="new" title="NGC 1968 (page does not exist)">1968</a></li> <li><a href="/wiki/NGC_1969" title="NGC 1969">1969</a></li> <li><a href="/wiki/NGC_1970" title="NGC 1970">1970</a></li> <li><a href="/wiki/NGC_1971" title="NGC 1971">1971</a></li> <li><a href="/w/index.php?title=NGC_1972&action=edit&redlink=1" class="new" title="NGC 1972 (page does not exist)">1972</a></li> <li><a href="/wiki/Sh2-279" class="mw-redirect" title="Sh2-279">1973</a></li> <li><a href="/wiki/NGC_1974" title="NGC 1974">1974</a></li> <li><a href="/wiki/Sh2-279" class="mw-redirect" title="Sh2-279">1975</a></li> <li><a href="/wiki/NGC_1976" class="mw-redirect" title="NGC 1976">1976</a></li> <li><a href="/wiki/Sh2-279" class="mw-redirect" title="Sh2-279">1977</a></li> <li><a href="/wiki/NGC_1978" title="NGC 1978">1978</a></li> <li><a href="/wiki/NGC_1979" title="NGC 1979">1979</a></li> <li><a href="/wiki/NGC_1980" title="NGC 1980">1980</a></li> <li><a href="/wiki/NGC_1981" title="NGC 1981">1981</a></li> <li><a href="/wiki/Messier_43" title="Messier 43">1982</a></li> <li><a href="/wiki/NGC_1983" title="NGC 1983">1983</a></li> <li><a href="/wiki/NGC_1984" title="NGC 1984">1984</a></li> <li><a href="/wiki/NGC_1985" title="NGC 1985">1985</a></li> <li><a href="/wiki/NGC_1986" title="NGC 1986">1986</a></li> <li><a href="/wiki/NGC_1987" title="NGC 1987">1987</a></li> <li><a href="/wiki/NGC_1988" title="NGC 1988">1988</a></li> <li><a href="/wiki/NGC_1989" title="NGC 1989">1989</a></li> <li><a href="/wiki/NGC_1990" title="NGC 1990">1990</a></li> <li><a href="/wiki/NGC_1991" class="mw-redirect" title="NGC 1991">1991</a></li> <li><a href="/wiki/NGC_1992" title="NGC 1992">1992</a></li> <li><a href="/wiki/NGC_1993" title="NGC 1993">1993</a></li> <li><a href="/wiki/NGC_1994" title="NGC 1994">1994</a></li> <li><a href="/wiki/NGC_1995" title="NGC 1995">1995</a></li> <li><a href="/wiki/NGC_1996" title="NGC 1996">1996</a></li> <li><a href="/wiki/NGC_1997" title="NGC 1997">1997</a></li> <li><a href="/wiki/NGC_1998" title="NGC 1998">1998</a></li> <li><a href="/wiki/NGC_1999" title="NGC 1999">1999</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/Astronomical_catalog" title="Astronomical catalog">Astronomical catalog</a></li> <li><a href="/wiki/List_of_NGC_objects" title="List of NGC objects">List of NGC objects</a> <ul><li><a href="/wiki/List_of_NGC_objects_(1001%E2%80%932000)" title="List of NGC objects (1001–2000)">1001–2000</a></li></ul></li></ul> </div></td></tr></tbody></table></div> <style data-mw-deduplicate="TemplateStyles:r1130092004">.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;justify-content:center;align-items:baseline}.mw-parser-output .portal-bar-bordered{padding:0 2em;background-color:#fdfdfd;border:1px solid #a2a9b1;clear:both;margin:1em auto 0}.mw-parser-output .portal-bar-related{font-size:100%;justify-content:flex-start}.mw-parser-output .portal-bar-unbordered{padding:0 1.7em;margin-left:0}.mw-parser-output .portal-bar-header{margin:0 1em 0 0.5em;flex:0 0 auto;min-height:24px}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;flex:0 1 auto;padding:0.15em 0;column-gap:1em;align-items:baseline;margin:0;list-style:none}.mw-parser-output .portal-bar-content-related{margin:0;list-style:none}.mw-parser-output .portal-bar-item{display:inline-block;margin:0.15em 0.2em;min-height:24px;line-height:24px}@media screen and (max-width:768px){.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;flex-flow:column wrap;align-items:baseline}.mw-parser-output .portal-bar-header{text-align:center;flex:0;padding-left:0.5em;margin:0 auto}.mw-parser-output .portal-bar-related{font-size:100%;align-items:flex-start}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;align-items:center;flex:0;column-gap:1em;border-top:1px solid #a2a9b1;margin:0 auto;list-style:none}.mw-parser-output .portal-bar-content-related{border-top:none;margin:0;list-style:none}}.mw-parser-output .navbox+link+.portal-bar,.mw-parser-output .navbox+style+.portal-bar,.mw-parser-output .navbox+link+.portal-bar-bordered,.mw-parser-output .navbox+style+.portal-bar-bordered,.mw-parser-output .sister-bar+link+.portal-bar,.mw-parser-output .sister-bar+style+.portal-bar,.mw-parser-output .portal-bar+.navbox-styles+.navbox,.mw-parser-output .portal-bar+.navbox-styles+.sister-bar{margin-top:-1px}</style><div class="portal-bar noprint metadata noviewer portal-bar-bordered" role="navigation" aria-label="Portals"><span class="portal-bar-header"><a href="/wiki/Wikipedia:Contents/Portals" title="Wikipedia:Contents/Portals">Portals</a>:</span><ul class="portal-bar-content"><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/19px-Crab_Nebula.jpg" decoding="async" width="19" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/29px-Crab_Nebula.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/38px-Crab_Nebula.jpg 2x" data-file-width="3864" data-file-height="3864" /></span></span> </span><a href="/wiki/Portal:Astronomy" title="Portal:Astronomy">Astronomy</a></li><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><a href="/wiki/File:He1523a.jpg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/He1523a.jpg/16px-He1523a.jpg" decoding="async" width="16" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/He1523a.jpg/25px-He1523a.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5f/He1523a.jpg/33px-He1523a.jpg 2x" data-file-width="180" data-file-height="207" /></a></span> </span><a href="/wiki/Portal:Stars" title="Portal:Stars">Stars</a></li><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/21px-Earth-moon.jpg" decoding="async" width="21" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/32px-Earth-moon.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/42px-Earth-moon.jpg 2x" data-file-width="3000" data-file-height="2400" /></span></span> </span><a href="/wiki/Portal:Outer_space" title="Portal:Outer space">Outer space</a></li></ul></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"><style data-mw-deduplicate="TemplateStyles:r1038841319">.mw-parser-output .tooltip-dotted{border-bottom:1px dotted;cursor:help}</style></div><div role="navigation" class="navbox authority-control" aria-labelledby="Authority_control_databases_frameless&#124;text-top&#124;10px&#124;alt=Edit_this_at_Wikidata&#124;link=https&#58;//www.wikidata.org/wiki/Q13903#identifiers&#124;class=noprint&#124;Edit_this_at_Wikidata" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Authority_control_databases_frameless&#124;text-top&#124;10px&#124;alt=Edit_this_at_Wikidata&#124;link=https&#58;//www.wikidata.org/wiki/Q13903#identifiers&#124;class=noprint&#124;Edit_this_at_Wikidata" style="font-size:114%;margin:0 4em"><a href="/wiki/Help:Authority_control" title="Help:Authority control">Authority control databases</a> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q13903#identifiers" title="Edit this at Wikidata"><img alt="Edit this at Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">International</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://viaf.org/viaf/315127380">VIAF</a></span></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">National</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><span class="rt-commentedText tooltip tooltip-dotted" title="Orionnebel"><a rel="nofollow" class="external text" href="https://d-nb.info/gnd/1235788733">Germany</a></span></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/sh85095658">United States</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb122613708">France</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://data.bnf.fr/ark:/12148/cb122613708">BnF data</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="http://olduli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007550928105171">Israel</a></span></li></ul></div></td></tr></tbody></table></div> <p><br /> </p>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from 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