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class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Characteristics</span> </div> </a> <ul id="toc-Characteristics-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Features" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Features"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Features</span> </div> </a> <button aria-controls="toc-Features-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Features subsection</span> </button> <ul id="toc-Features-sublist" class="vector-toc-list"> <li id="toc-Stars" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Stars"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Stars</span> </div> </a> <ul id="toc-Stars-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Exoplanets" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Exoplanets"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Exoplanets</span> </div> </a> <ul id="toc-Exoplanets-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Star_clusters" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Star_clusters"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.3</span> <span>Star clusters</span> </div> </a> <ul id="toc-Star_clusters-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Molecular_clouds" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Molecular_clouds"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.4</span> <span>Molecular clouds</span> </div> </a> <ul id="toc-Molecular_clouds-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Deep_space_objects" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Deep_space_objects"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.5</span> <span>Deep space objects</span> </div> </a> <ul id="toc-Deep_space_objects-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Other_features" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Other_features"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.6</span> <span>Other features</span> </div> </a> <ul id="toc-Other_features-sublist" class="vector-toc-list"> </ul> </li> </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">4</span> <span>See also</span> </div> </a> <ul id="toc-See_also-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">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliography" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliography"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Bibliography</span> </div> </a> <ul id="toc-Bibliography-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">7</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">Cygnus (constellation)</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 92 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-92" 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">92 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/Swaan_(sterrebeeld)" title="Swaan (sterrebeeld) – Afrikaans" lang="af" hreflang="af" data-title="Swaan (sterrebeeld)" 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%A7%D9%84%D8%AF%D8%AC%D8%A7%D8%AC%D8%A9_(%D9%83%D9%88%D9%83%D8%A8%D8%A9)" title="الدجاجة (كوكبة) – Arabic" lang="ar" hreflang="ar" data-title="الدجاجة (كوكبة)" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-hyw mw-list-item"><a href="https://hyw.wikipedia.org/wiki/%D4%BF%D5%A1%D6%80%D5%A1%D5%BA_(%D5%B0%D5%A1%D5%B4%D5%A1%D5%BD%D5%BF%D5%A5%D5%B2%D5%B8%D6%82%D5%A9%D5%AB%D6%82%D5%B6)" title="Կարապ (համաստեղութիւն) – Western Armenian" lang="hyw" hreflang="hyw" data-title="Կարապ (համաստեղութիւն)" data-language-autonym="Արեւմտահայերէն" data-language-local-name="Western Armenian" class="interlanguage-link-target"><span>Արեւմտահայերէն</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Qu_(b%C3%BCrc)" title="Qu (bürc) – Azerbaijani" lang="az" hreflang="az" data-title="Qu (bürc)" data-language-autonym="Azərbaycanca" data-language-local-name="Azerbaijani" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Thian-g%C3%B4-ch%C5%8D" title="Thian-gô-chō – Minnan" lang="nan" hreflang="nan" data-title="Thian-gô-chō" 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-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%90%D2%A1%D2%A1%D0%BE%D1%88_(%D0%B9%D0%BE%D0%BD%D0%B4%D0%BE%D2%99%D0%BB%D0%BE%D2%A1)" title="Аҡҡош (йондоҙлоҡ) – Bashkir" lang="ba" hreflang="ba" data-title="Аҡҡош (йондоҙлоҡ)" data-language-autonym="Башҡортса" data-language-local-name="Bashkir" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9B%D0%B5%D0%B1%D0%B5%D0%B4%D0%B7%D1%8C_(%D1%81%D1%83%D0%B7%D0%BE%D1%80%E2%80%99%D0%B5)" title="Лебедзь (сузор’е) – Belarusian" lang="be" hreflang="be" data-title="Лебедзь (сузор’е)" 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%9B%D0%B5%D0%B1%D0%B5%D0%B4%D0%B7%D1%8C_(%D1%81%D1%83%D0%B7%D0%BE%D1%80%E2%80%99%D0%B5)" title="Лебедзь (сузор’е) – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Лебедзь (сузор’е)" 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%9B%D0%B5%D0%B1%D0%B5%D0%B4_(%D1%81%D1%8A%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%B8%D0%B5)" title="Лебед (съзвездие) – Bulgarian" lang="bg" hreflang="bg" data-title="Лебед (съзвездие)" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bo mw-list-item"><a href="https://bo.wikipedia.org/wiki/%E0%BD%84%E0%BD%84%E0%BC%8B%E0%BD%91%E0%BD%80%E0%BD%A2%E0%BC%8B%E0%BD%A6%E0%BE%90%E0%BD%A2%E0%BC%8B%E0%BD%9A%E0%BD%BC%E0%BD%98%E0%BC%8B" title="ངང་དཀར་སྐར་ཚོམ་ – Tibetan" lang="bo" hreflang="bo" data-title="ངང་དཀར་སྐར་ཚོམ་" data-language-autonym="བོད་ཡིག" data-language-local-name="Tibetan" class="interlanguage-link-target"><span>བོད་ཡིག</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Labud_(sazvije%C5%BE%C4%91e)" title="Labud (sazviježđe) – Bosnian" lang="bs" hreflang="bs" data-title="Labud (sazviježđe)" 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/Alarc%27h_(steredeg)" title="Alarc'h (steredeg) – Breton" lang="br" hreflang="br" data-title="Alarc'h (steredeg)" 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/Constel%C2%B7laci%C3%B3_del_Cigne" title="Constel·lació del Cigne – Catalan" lang="ca" hreflang="ca" data-title="Constel·lació del Cigne" 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/Souhv%C4%9Bzd%C3%AD_Labut%C4%9B" title="Souhvězdí Labutě – Czech" lang="cs" hreflang="cs" data-title="Souhvězdí Labutě" 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/Cygnus_(Custellazione)" title="Cygnus (Custellazione) – Corsican" lang="co" hreflang="co" data-title="Cygnus (Custellazione)" 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/Cygnus_(cytser)" title="Cygnus (cytser) – Welsh" lang="cy" hreflang="cy" data-title="Cygnus (cytser)" 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/Svanen" title="Svanen – Danish" lang="da" hreflang="da" data-title="Svanen" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Schwan_(Sternbild)" title="Schwan (Sternbild) – German" lang="de" hreflang="de" data-title="Schwan (Sternbild)" 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/Luik_(t%C3%A4htkuju)" title="Luik (tähtkuju) – Estonian" lang="et" hreflang="et" data-title="Luik (tähtkuju)" 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%9A%CF%8D%CE%BA%CE%BD%CE%BF%CF%82_(%CE%B1%CF%83%CF%84%CE%B5%CF%81%CE%B9%CF%83%CE%BC%CF%8C%CF%82)" title="Κύκνος (αστερισμός) – Greek" lang="el" hreflang="el" data-title="Κύκνος (αστερισμός)" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Cygnus_(constelaci%C3%B3n)" title="Cygnus (constelación) – Spanish" lang="es" hreflang="es" data-title="Cygnus (constelación)" 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/Cigno_(konstelacio)" title="Cigno (konstelacio) – Esperanto" lang="eo" hreflang="eo" data-title="Cigno (konstelacio)" 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/Cygnus_(konstelazioa)" title="Cygnus (konstelazioa) – Basque" lang="eu" hreflang="eu" data-title="Cygnus (konstelazioa)" 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/%D9%85%D8%A7%DA%A9%DB%8C%D8%A7%D9%86_(%D8%B5%D9%88%D8%B1%D8%AA_%D9%81%D9%84%DA%A9%DB%8C)" title="ماکیان (صورت فلکی) – Persian" lang="fa" hreflang="fa" data-title="ماکیان (صورت فلکی)" 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/Cygne_(constellation)" title="Cygne (constellation) – French" lang="fr" hreflang="fr" data-title="Cygne (constellation)" 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/An_Eala" title="An Eala – Irish" lang="ga" hreflang="ga" data-title="An Eala" 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/Cygnus" title="Cygnus – Galician" lang="gl" hreflang="gl" data-title="Cygnus" data-language-autonym="Galego" data-language-local-name="Galician" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-hak mw-list-item"><a href="https://hak.wikipedia.org/wiki/Thi%C3%AAn-ng%C3%B2-chho" title="Thiên-ngò-chho – Hakka Chinese" lang="hak" hreflang="hak" data-title="Thiên-ngò-chho" data-language-autonym="客家語 / Hak-kâ-ngî" data-language-local-name="Hakka Chinese" class="interlanguage-link-target"><span>客家語 / Hak-kâ-ngî</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B0%B1%EC%A1%B0%EC%9E%90%EB%A6%AC" title="백조자리 – Korean" lang="ko" hreflang="ko" data-title="백조자리" 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/%D4%BF%D5%A1%D6%80%D5%A1%D5%BA_(%D5%B0%D5%A1%D5%B4%D5%A1%D5%BD%D5%BF%D5%A5%D5%B2%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6)" title="Կարապ (համաստեղություն) – Armenian" lang="hy" hreflang="hy" data-title="Կարապ (համաստեղություն)" 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%B9%E0%A4%82%E0%A4%B8_%E0%A4%A4%E0%A4%BE%E0%A4%B0%E0%A4%BE%E0%A4%AE%E0%A4%82%E0%A4%A1%E0%A4%B2" title="हंस तारामंडल – Hindi" lang="hi" hreflang="hi" data-title="हंस तारामंडल" 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/Labud_(zvije%C5%BE%C4%91e)" title="Labud (zviježđe) – Croatian" lang="hr" hreflang="hr" data-title="Labud (zviježđe)" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ig mw-list-item"><a href="https://ig.wikipedia.org/wiki/Cygnus_(%C3%ACgw%C3%A8_kpakpando)" title="Cygnus (ìgwè kpakpando) – Igbo" lang="ig" hreflang="ig" data-title="Cygnus (ìgwè kpakpando)" data-language-autonym="Igbo" data-language-local-name="Igbo" class="interlanguage-link-target"><span>Igbo</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Cygnus" title="Cygnus – Indonesian" lang="id" hreflang="id" data-title="Cygnus" 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-os mw-list-item"><a href="https://os.wikipedia.org/wiki/%D0%94%D0%BE%D0%BD%D1%8B%D1%85%D1%8A%D0%B0%D0%B7_(%D1%81%D1%82%D1%8A%D0%B0%D0%BB%D1%8B%D0%B3%D1%83%D0%BF%D0%BF%D0%B0%D1%80)" title="Доныхъаз (стъалыгуппар) – Ossetic" lang="os" hreflang="os" data-title="Доныхъаз (стъалыгуппар)" data-language-autonym="Ирон" data-language-local-name="Ossetic" class="interlanguage-link-target"><span>Ирон</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Svanurinn_(stj%C3%B6rnumerki)" title="Svanurinn (stjörnumerki) – Icelandic" lang="is" hreflang="is" data-title="Svanurinn (stjörnumerki)" data-language-autonym="Íslenska" data-language-local-name="Icelandic" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Cigno_(costellazione)" title="Cigno (costellazione) – Italian" lang="it" hreflang="it" data-title="Cigno (costellazione)" 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%91%D7%A8%D7%91%D7%95%D7%A8_(%D7%A7%D7%91%D7%95%D7%A6%D7%AA_%D7%9B%D7%95%D7%9B%D7%91%D7%99%D7%9D)" title="ברבור (קבוצת כוכבים) – Hebrew" lang="he" hreflang="he" data-title="ברבור (קבוצת כוכבים)" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Cygnus" title="Cygnus – Javanese" lang="jv" hreflang="jv" data-title="Cygnus" data-language-autonym="Jawa" data-language-local-name="Javanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%92%E1%83%94%E1%83%93%E1%83%98%E1%83%A1_%E1%83%97%E1%83%90%E1%83%9C%E1%83%90%E1%83%95%E1%83%90%E1%83%A0%E1%83%A1%E1%83%99%E1%83%95%E1%83%9A%E1%83%90%E1%83%95%E1%83%94%E1%83%93%E1%83%98" title="გედის თანავარსკვლავედი – Georgian" lang="ka" hreflang="ka" data-title="გედის თანავარსკვლავედი" 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%90%D2%9B%D2%9B%D1%83_%D1%88%D0%BE%D2%9B%D0%B6%D2%B1%D0%BB%D0%B4%D1%8B%D0%B7%D1%8B" title="Аққу шоқжұлдызы – Kazakh" lang="kk" hreflang="kk" data-title="Аққу шоқжұлдызы" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Cygnus_(ranneves)" title="Cygnus (ranneves) – Cornish" lang="kw" hreflang="kw" data-title="Cygnus (ranneves)" data-language-autonym="Kernowek" data-language-local-name="Cornish" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Dajaja_(kundinyota)" title="Dajaja (kundinyota) – Swahili" lang="sw" hreflang="sw" data-title="Dajaja (kundinyota)" data-language-autonym="Kiswahili" data-language-local-name="Swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%90%D0%BA_%D0%BA%D1%83%D1%83_(%D1%82%D0%BE%D0%BF_%D0%B6%D1%8B%D0%BB%D0%B4%D1%8B%D0%B7)" title="Ак куу (топ жылдыз) – Kyrgyz" lang="ky" hreflang="ky" data-title="Ак куу (топ жылдыз)" data-language-autonym="Кыргызча" data-language-local-name="Kyrgyz" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Cygnus_(constellatio)" title="Cygnus (constellatio) – Latin" lang="la" hreflang="la" data-title="Cygnus (constellatio)" data-language-autonym="Latina" data-language-local-name="Latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Gulbis_(zvaigzn%C4%81js)" title="Gulbis (zvaigznājs) – Latvian" lang="lv" hreflang="lv" data-title="Gulbis (zvaigznājs)" 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/Cygnus_(St%C3%A4rebild)" title="Cygnus (Stärebild) – Luxembourgish" lang="lb" hreflang="lb" data-title="Cygnus (Stärebild)" 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/Gulb%C4%97_(%C5%BEvaig%C5%BEdynas)" title="Gulbė (žvaigždynas) – Lithuanian" lang="lt" hreflang="lt" data-title="Gulbė (žvaigždynas)" 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/Hatty%C3%BA_csillagk%C3%A9p" title="Hattyú csillagkép – Hungarian" lang="hu" hreflang="hu" data-title="Hattyú csillagkép" 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%9B%D0%B5%D0%B1%D0%B5%D0%B4_(%D1%81%D0%BE%D1%95%D0%B2%D0%B5%D0%B7%D0%B4%D0%B8%D0%B5)" title="Лебед (соѕвездие) – Macedonian" lang="mk" hreflang="mk" data-title="Лебед (соѕвездие)" 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%9C%E0%B4%BE%E0%B4%AF%E0%B4%B0" title="ജായര – Malayalam" lang="ml" hreflang="ml" data-title="ജായര" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B9%E0%A4%82%E0%A4%B8_(%E0%A4%A4%E0%A4%BE%E0%A4%B0%E0%A4%95%E0%A4%BE%E0%A4%B8%E0%A4%AE%E0%A5%82%E0%A4%B9)" title="हंस (तारकासमूह) – Marathi" lang="mr" hreflang="mr" data-title="हंस (तारकासमूह)" data-language-autonym="मराठी" data-language-local-name="Marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%B3%D9%8A%D8%AC%D9%86%D8%A7%D8%B3" title="سيجناس – Egyptian Arabic" lang="arz" hreflang="arz" data-title="سيجناس" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Undan_(buruj)" title="Undan (buruj) – Malay" lang="ms" hreflang="ms" data-title="Undan (buruj)" 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-cdo mw-list-item"><a href="https://cdo.wikipedia.org/wiki/Ti%C4%95ng-ng%C3%B2%CC%A4-c%C3%B4%CC%A4" title="Tiĕng-ngò̤-cô̤ – Mindong" lang="cdo" hreflang="cdo" data-title="Tiĕng-ngò̤-cô̤" data-language-autonym="閩東語 / Mìng-dĕ̤ng-ngṳ̄" data-language-local-name="Mindong" class="interlanguage-link-target"><span>閩東語 / Mìng-dĕ̤ng-ngṳ̄</span></a></li><li class="interlanguage-link interwiki-mdf mw-list-item"><a href="https://mdf.wikipedia.org/wiki/%D0%9E%D0%B7%D1%8F%D0%BB" title="Озял – Moksha" lang="mdf" hreflang="mdf" data-title="Озял" data-language-autonym="Мокшень" data-language-local-name="Moksha" class="interlanguage-link-target"><span>Мокшень</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%86%E1%80%AD%E1%80%AF%E1%80%84%E1%80%BA%E1%80%94%E1%80%95%E1%80%BA_(%E1%80%80%E1%80%BC%E1%80%9A%E1%80%BA%E1%80%85%E1%80%AF%E1%80%90%E1%80%94%E1%80%BA%E1%80%B8)" title="ဆိုင်နပ် (ကြယ်စုတန်း) – Burmese" lang="my" hreflang="my" data-title="ဆိုင်နပ် (ကြယ်စုတန်း)" 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/Zwaan_(sterrenbeeld)" title="Zwaan (sterrenbeeld) – Dutch" lang="nl" hreflang="nl" data-title="Zwaan (sterrenbeeld)" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%B9%E0%A4%82%E0%A4%B8_%E0%A4%A4%E0%A4%BE%E0%A4%B0%E0%A4%BE%E0%A4%AE%E0%A4%82%E0%A4%A1%E0%A4%B2" title="हंस तारामंडल – Nepali" lang="ne" hreflang="ne" data-title="हंस तारामंडल" data-language-autonym="नेपाली" data-language-local-name="Nepali" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-ja badge-Q17437798 badge-goodarticle mw-list-item" title="good article badge"><a href="https://ja.wikipedia.org/wiki/%E3%81%AF%E3%81%8F%E3%81%A1%E3%82%87%E3%81%86%E5%BA%A7" title="はくちょう座 – Japanese" lang="ja" hreflang="ja" data-title="はくちょう座" 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-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Swaan_(st%C3%A4%C3%A4rbil)" title="Swaan (stäärbil) – Northern Frisian" lang="frr" hreflang="frr" data-title="Swaan (stäärbil)" data-language-autonym="Nordfriisk" data-language-local-name="Northern Frisian" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Svanen" title="Svanen – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Svanen" 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/Svana" title="Svana – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Svana" 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/Cigne_(constellacion)" title="Cigne (constellacion) – Occitan" lang="oc" hreflang="oc" data-title="Cigne (constellacion)" 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/Oqqush_(yulduz_turkumi)" title="Oqqush (yulduz turkumi) – Uzbek" lang="uz" hreflang="uz" data-title="Oqqush (yulduz turkumi)" 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/%DB%81%D9%86%D8%B3_%D8%AA%D8%A7%D8%B1%DB%81_%D8%AC%DA%BE%D8%B1%D9%85%D9%B9" title="ہنس تارہ جھرمٹ – Western Punjabi" lang="pnb" hreflang="pnb" data-title="ہنس تارہ جھرمٹ" 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 mw-list-item"><a href="https://pl.wikipedia.org/wiki/Gwiazdozbi%C3%B3r_%C5%81ab%C4%99dzia" title="Gwiazdozbiór Łabędzia – Polish" lang="pl" hreflang="pl" data-title="Gwiazdozbiór Łabędzia" 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/Cygnus" title="Cygnus – Portuguese" lang="pt" hreflang="pt" data-title="Cygnus" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Leb%C4%83da_(constela%C8%9Bie)" title="Lebăda (constelație) – Romanian" lang="ro" hreflang="ro" data-title="Lebăda (constelație)" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9B%D0%B5%D0%B1%D0%B5%D0%B4%D1%8C_(%D1%81%D0%BE%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%B8%D0%B5)" title="Лебедь (созвездие) – Russian" lang="ru" hreflang="ru" data-title="Лебедь (созвездие)" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/%D0%9A%D1%83%D0%B1%D0%B0_(%D1%81%D1%83%D0%BB%D1%83%D1%81%D1%82%D0%B0%D1%80_%D0%B1%D3%A9%D0%BB%D3%A9%D1%85%D1%82%D3%A9%D1%80%D3%A9)" title="Куба (сулустар бөлөхтөрө) – Yakut" lang="sah" hreflang="sah" data-title="Куба (сулустар бөлөхтөрө)" data-language-autonym="Саха тыла" data-language-local-name="Yakut" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Cygnus_(constellation)" title="Cygnus (constellation) – Simple English" lang="en-simple" hreflang="en-simple" data-title="Cygnus (constellation)" 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/Labu%C5%A5_(s%C3%BAhvezdie)" title="Labuť (súhvezdie) – Slovak" lang="sk" hreflang="sk" data-title="Labuť (súhvezdie)" 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/Labod_(ozvezdje)" title="Labod (ozvezdje) – Slovenian" lang="sl" hreflang="sl" data-title="Labod (ozvezdje)" 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%9B%D0%B0%D0%B1%D1%83%D0%B4_(%D1%81%D0%B0%D0%B7%D0%B2%D0%B5%D0%B6%D1%92%D0%B5)" title="Лабуд (сазвежђе) – Serbian" lang="sr" hreflang="sr" data-title="Лабуд (сазвежђе)" 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/Labud_(zvije%C5%BE%C4%91e)" title="Labud (zviježđe) – Serbo-Croatian" lang="sh" hreflang="sh" data-title="Labud (zviježđe)" 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/Joutsen_(t%C3%A4hdist%C3%B6)" title="Joutsen (tähdistö) – Finnish" lang="fi" hreflang="fi" data-title="Joutsen (tähdistö)" 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/Svanen_(stj%C3%A4rnbild)" title="Svanen (stjärnbild) – Swedish" lang="sv" hreflang="sv" data-title="Svanen (stjärnbild)" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Cygnus_(konstelasyon)" title="Cygnus (konstelasyon) – Tagalog" lang="tl" hreflang="tl" data-title="Cygnus (konstelasyon)" data-language-autonym="Tagalog" data-language-local-name="Tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a 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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=20.62&de=42.03&zoom=2&show_grid=1&show_constellation_lines=1&show_constellation_boundaries=1&show_const_names=1&show_galaxies=1&img_source=IMG_all">20<sup>h</sup> 37<sup>m</sup> 12<sup>s</sup>, +42° 01′ 48″</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"></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">Constellation in the northern celestial hemisphere</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><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 plainlist"><caption class="infobox-title">Cygnus</caption><tbody><tr><td colspan="2" class="infobox-subheader" style="font-size: 110%;">Constellation</td></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Cygnus_IAU.svg" class="mw-file-description" title="Cygnus"><img alt="Cygnus" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Cygnus_IAU.svg/290px-Cygnus_IAU.svg.png" decoding="async" width="290" height="357" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Cygnus_IAU.svg/435px-Cygnus_IAU.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Cygnus_IAU.svg/580px-Cygnus_IAU.svg.png 2x" data-file-width="606" data-file-height="745" /></a></span><div class="infobox-caption"><a href="/wiki/List_of_stars_in_Cygnus" title="List of stars in Cygnus">List of stars in Cygnus</a></div></td></tr><tr><th scope="row" class="infobox-label">Abbreviation</th><td class="infobox-data">Cyg</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Genitive_case" title="Genitive case">Genitive</a></th><td class="infobox-data">Cygni</td></tr><tr><th scope="row" class="infobox-label">Pronunciation</th><td class="infobox-data"><span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="'s' in 'sigh'">s</span><span title="/ɪ/: 'i' in 'kit'">ɪ</span><span title="/ɡ/: 'g' in 'guy'">ɡ</span><span title="'n' in 'nigh'">n</span><span title="/ə/: 'a' in 'about'">ə</span><span title="'s' in 'sigh'">s</span></span>/</a></span></span>, genitive <span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="'s' in 'sigh'">s</span><span title="/ɪ/: 'i' in 'kit'">ɪ</span><span title="/ɡ/: 'g' in 'guy'">ɡ</span><span title="'n' in 'nigh'">n</span><span title="/aɪ/: 'i' in 'tide'">aɪ</span></span>/</a></span></span></td></tr><tr><th scope="row" class="infobox-label">Symbolism</th><td class="infobox-data">the <a href="/wiki/Swan" title="Swan">Swan</a> or <a href="/wiki/Northern_Cross_(asterism)" title="Northern Cross (asterism)">Northern Cross</a></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Right_ascension" title="Right ascension">Right ascension</a></th><td class="infobox-data"><span class="nowrap">20.62<sup>h</sup> </span></td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Declination" title="Declination">Declination</a></th><td class="infobox-data">+42.03°</td></tr><tr><th scope="row" class="infobox-label">Quadrant</th><td class="infobox-data">NQ4</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/88_modern_constellations_by_area" class="mw-redirect" title="88 modern constellations by area">Area</a></th><td class="infobox-data">804 sq. deg. (<a href="/wiki/88_modern_constellations_by_area" class="mw-redirect" title="88 modern constellations by area">16th</a>)</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Asterism_(astronomy)" title="Asterism (astronomy)">Main stars</a></th><td class="infobox-data">9</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Bayer_designation" title="Bayer designation">Bayer</a>/<a href="/wiki/Flamsteed_designation" title="Flamsteed designation">Flamsteed</a><br />stars</th><td class="infobox-data">84</td></tr><tr><th scope="row" class="infobox-label">Stars with <a href="/wiki/Exoplanet" title="Exoplanet">planets</a></th><td class="infobox-data">97</td></tr><tr><th scope="row" class="infobox-label">Stars brighter than 3.00<sup>m</sup></th><td class="infobox-data">4</td></tr><tr><th scope="row" class="infobox-label">Stars within 10.00 pc (32.62 ly)</th><td class="infobox-data">1</td></tr><tr><th scope="row" class="infobox-label">Brightest star</th><td class="infobox-data"><a href="/wiki/Deneb" title="Deneb">Deneb</a> (α Cyg) (1.25<sup><a href="/wiki/Apparent_magnitude" title="Apparent magnitude">m</a></sup>)</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Messier_object" title="Messier object">Messier objects</a></th><td class="infobox-data">2</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Meteor_shower" title="Meteor shower">Meteor showers</a></th><td class="infobox-data"><a href="/w/index.php?title=October_Cygnids&action=edit&redlink=1" class="new" title="October Cygnids (page does not exist)">October Cygnids</a><br /><a href="/wiki/Kappa_Cygnids" title="Kappa Cygnids">Kappa Cygnids</a></td></tr><tr><th scope="row" class="infobox-label">Bordering<br />constellations</th><td class="infobox-data"><a href="/wiki/Cepheus_(constellation)" title="Cepheus (constellation)">Cepheus</a><br /><a href="/wiki/Draco_(constellation)" title="Draco (constellation)">Draco</a><br /><a href="/wiki/Lyra" title="Lyra">Lyra</a><br /><a href="/wiki/Vulpecula" title="Vulpecula">Vulpecula</a><br /><a href="/wiki/Pegasus_(constellation)" title="Pegasus (constellation)">Pegasus</a><br /><a href="/wiki/Lacerta" title="Lacerta">Lacerta</a></td></tr><tr><td colspan="2" class="infobox-below" style="font-size: smaller;"><b>Visible at latitudes between +<a href="/wiki/North_Pole" title="North Pole">90</a>° and −<a href="/wiki/40th_parallel_south" title="40th parallel south">40</a>°.</b><br /><b>Best visible at 21:00 (9 p.m.) during the month of <span style="font-size:120%">September</span>.</b></td></tr></tbody></table> <p><b>Cygnus</b> is a northern <a href="/wiki/Constellation" title="Constellation">constellation</a> on the plane of the <a href="/wiki/Milky_Way" title="Milky Way">Milky Way</a>, deriving its name from the <a href="/wiki/Latinisation_of_names" title="Latinisation of names">Latinized</a> <a href="/wiki/Greek_language" title="Greek language">Greek</a> word for <a href="/wiki/Swan" title="Swan">swan</a>.<sup id="cite_ref-Starwatch_1-0" class="reference"><a href="#cite_note-Starwatch-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Cygnus is one of the most recognizable constellations of the northern summer and autumn, and it features a prominent <a href="/wiki/Asterism_(astronomy)" title="Asterism (astronomy)">asterism</a> known as the <a href="/wiki/Northern_Cross_(asterism)" title="Northern Cross (asterism)">Northern Cross</a> (in contrast to the <a href="/wiki/Southern_Cross" class="mw-redirect" title="Southern Cross">Southern Cross</a>). Cygnus was among the 48 constellations listed by the 2nd century astronomer <a href="/wiki/Ptolemy" title="Ptolemy">Ptolemy</a>, and it remains one of the 88 modern constellations. </p><p>Cygnus contains <a href="/wiki/Deneb" title="Deneb">Deneb</a> (ذنب, translit. <i>ḏanab,</i> tail) – one of the <a href="/wiki/Brightest_stars" class="mw-redirect" title="Brightest stars">brightest stars</a> in the night sky and the most distant <a href="/wiki/First-magnitude_star" title="First-magnitude star">first-magnitude star</a> – as its "tail star" and one corner of the <a href="/wiki/Summer_Triangle" title="Summer Triangle">Summer Triangle</a> the constellation forming an east pointing <a href="/wiki/Altitude_(triangle)" title="Altitude (triangle)">altitude of the triangle</a>.<sup id="cite_ref-Starwatch_1-1" class="reference"><a href="#cite_note-Starwatch-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> It also has some notable X-ray sources and the giant <a href="/wiki/Stellar_association" title="Stellar association">stellar association</a> of <a href="/wiki/Cygnus_OB2" title="Cygnus OB2">Cygnus OB2</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> One of the stars of this association, <a href="/wiki/NML_Cygni" title="NML Cygni">NML Cygni</a>, is one of the <a href="/wiki/List_of_largest_known_stars" class="mw-redirect" title="List of largest known stars">largest stars currently known</a>. The constellation is also home to <a href="/wiki/Cygnus_X-1" title="Cygnus X-1">Cygnus X-1</a>, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a <a href="/wiki/Black_hole" title="Black hole">black hole</a>. Many star systems in Cygnus have known planets as a result of the <a href="/wiki/Kepler_Mission" class="mw-redirect" title="Kepler Mission">Kepler Mission</a> observing one patch of the sky, an area around Cygnus. </p><p>Most of the east has part of the <a href="/wiki/Hercules%E2%80%93Corona_Borealis_Great_Wall" title="Hercules–Corona Borealis Great Wall">Hercules–Corona Borealis Great Wall</a> in the <a href="/wiki/Deep-sky_object" title="Deep-sky object">deep sky</a>, a giant <a href="/wiki/Galaxy_filament" title="Galaxy filament">galaxy filament</a> that is the largest known structure in the observable universe, covering most of the northern sky. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History_and_mythology">History and mythology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=1" title="Edit section: History and mythology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="In_Eastern_and_World_Astronomy">In Eastern and World Astronomy</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=2" title="Edit section: In Eastern and World Astronomy"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Cygnus_in_Chinese_astronomy" title="Cygnus in Chinese astronomy">Cygnus in Chinese astronomy</a></div> <p>In <a href="/wiki/Polynesia" title="Polynesia">Polynesia</a>, Cygnus was often recognized as a separate constellation. In <a href="/wiki/Tonga" title="Tonga">Tonga</a> it was called <i>Tuula-lupe</i>, and in the <a href="/wiki/Tuamotus" title="Tuamotus">Tuamotus</a> it was called <i>Fanui-tai</i>. In <a href="/wiki/New_Zealand" title="New Zealand">New Zealand</a> it was called <i>Mara-tea</i>, in the <a href="/wiki/Society_Islands" title="Society Islands">Society Islands</a> it was called <i>Pirae-tea</i> or <i>Taurua-i-te-haapa-raa-manu</i>, and in the Tuamotus it was called <i>Fanui-raro</i>. Beta Cygni was named in New Zealand; it was likely called <i>Whetu-kaupo</i>. Gamma Cygni was called <i>Fanui-runga</i> in the Tuamotus.<sup id="cite_ref-FOOTNOTEMakemson1941282_3-0" class="reference"><a href="#cite_note-FOOTNOTEMakemson1941282-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Deneb was also often a given name, in <a href="/wiki/Astronomy_in_the_medieval_Islamic_world" title="Astronomy in the medieval Islamic world">the Islamic world of astronomy</a>. The name <i>Deneb</i> comes from the <a href="/wiki/Arabic" title="Arabic">Arabic</a> name <i>dhaneb</i>, meaning "tail", from the phrase <i>Dhanab ad-Dajājah</i>, which means "the tail of the hen". </p> <div class="mw-heading mw-heading3"><h3 id="In_Western_astronomy">In Western astronomy</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=3" title="Edit section: In Western astronomy"><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:Sidney_Hall_-_Urania%27s_Mirror_-_Lacerta,_Cygnus,_Lyra,_Vulpecula_and_Anser.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/76/Sidney_Hall_-_Urania%27s_Mirror_-_Lacerta%2C_Cygnus%2C_Lyra%2C_Vulpecula_and_Anser.jpg/260px-Sidney_Hall_-_Urania%27s_Mirror_-_Lacerta%2C_Cygnus%2C_Lyra%2C_Vulpecula_and_Anser.jpg" decoding="async" width="260" height="183" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/76/Sidney_Hall_-_Urania%27s_Mirror_-_Lacerta%2C_Cygnus%2C_Lyra%2C_Vulpecula_and_Anser.jpg/390px-Sidney_Hall_-_Urania%27s_Mirror_-_Lacerta%2C_Cygnus%2C_Lyra%2C_Vulpecula_and_Anser.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/76/Sidney_Hall_-_Urania%27s_Mirror_-_Lacerta%2C_Cygnus%2C_Lyra%2C_Vulpecula_and_Anser.jpg/520px-Sidney_Hall_-_Urania%27s_Mirror_-_Lacerta%2C_Cygnus%2C_Lyra%2C_Vulpecula_and_Anser.jpg 2x" data-file-width="3566" data-file-height="2504" /></a><figcaption>Cygnus as depicted in <i><a href="/wiki/Urania%27s_Mirror" title="Urania's Mirror">Urania's Mirror</a></i>, a set of constellation cards published in London c.1825. Surrounding it are Lacerta, Vulpecula and Lyra.</figcaption></figure> <p>In <a href="/wiki/Greek_mythology" title="Greek mythology">Greek mythology</a>, Cygnus has been identified with several different legendary swans. <a href="/wiki/Zeus" title="Zeus">Zeus</a> disguised himself as a swan to seduce <a href="/wiki/Leda_(mythology)" title="Leda (mythology)">Leda</a>, <a href="/wiki/Sparta" title="Sparta">Spartan</a> king <a href="/wiki/Tyndareus" title="Tyndareus">Tyndareus</a>'s wife, who gave birth to the <a href="/wiki/Castor_and_Pollux" title="Castor and Pollux">Gemini</a>, <a href="/wiki/Helen_of_Troy" title="Helen of Troy">Helen of Troy</a>, and <a href="/wiki/Clytemnestra" title="Clytemnestra">Clytemnestra</a>;<sup id="cite_ref-FOOTNOTERidpathTirion2001134–137_4-0" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Orpheus" title="Orpheus">Orpheus</a> was transformed into a swan after his murder, and was said to have been placed in the sky next to his <a href="/wiki/Lyre" title="Lyre">lyre</a> (<a href="/wiki/Lyra" title="Lyra">Lyra</a>); and a man named <a href="/wiki/Cycnus" title="Cycnus">Cygnus</a> (Greek for <i>swan</i>) was transformed into his namesake. </p><p>Later Romans also associated this constellation with the tragic story of <a href="/wiki/Phaethon" title="Phaethon">Phaethon</a>, the son of <a href="/wiki/Helios" title="Helios">Helios</a> the sun god, who demanded to ride his father's sun chariot for a day. Phaethon, however, was unable to control the reins, forcing Zeus to destroy the chariot (and Phaethon) with a thunderbolt, causing it to plummet to the earth into the river <a href="/wiki/Eridanus_(constellation)" title="Eridanus (constellation)">Eridanus</a>. According to the myth, Phaethon's close friend or lover, <a href="/wiki/Cycnus_of_Liguria" title="Cycnus of Liguria">Cygnus of Liguria</a>, grieved bitterly and spent many days diving into the river to collect Phaethon's bones to give him a proper burial. The gods were so touched by Cygnus's devotion that they turned him into a swan and placed him among the stars.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-msh_7-0" class="reference"><a href="#cite_note-msh-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>In <a href="/wiki/Ovid" title="Ovid">Ovid</a>'s <i><a href="/wiki/Metamorphoses" title="Metamorphoses">Metamorphoses</a></i>, there are three people named Cygnus, all of whom are transformed into swans. Alongside Cygnus, noted above, he mentions <a href="/wiki/Cycnus_(son_of_Apollo)" title="Cycnus (son of Apollo)">a boy from Aetolia</a> who throws himself off a cliff when his companion <a href="/w/index.php?title=Phyllius&action=edit&redlink=1" class="new" title="Phyllius (page does not exist)">Phyllius</a> refuses to give him a tamed bull that he demands, but he is transformed into a swan and flies away.<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> He also mentions <a href="/wiki/Cycnus_of_Kolonai" title="Cycnus of Kolonai">a son of Poseidon</a>, an invulnerable warrior in the <a href="/wiki/Trojan_War" title="Trojan War">Trojan War</a> who is eventually killed by <a href="/wiki/Achilles" title="Achilles">Achilles</a>, but <a href="/wiki/Poseidon" title="Poseidon">Poseidon</a> saves him by transforming him into a swan.<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> </p><p>Together with other <a href="/wiki/Bird" title="Bird">avian</a> constellations near the <a href="/wiki/Summer_solstice" title="Summer solstice">summer solstice</a>, <a href="/wiki/Lyra#History" title="Lyra">Vultur cadens</a> and <a href="/wiki/Aquila_(constellation)" title="Aquila (constellation)">Aquila</a>, Cygnus may be a significant part of the origin of the myth of the <a href="/wiki/Stymphalian_Birds" class="mw-redirect" title="Stymphalian Birds">Stymphalian Birds</a>, one of <a href="/wiki/The_Twelve_Labours" class="mw-redirect" title="The Twelve Labours">The Twelve Labours</a> of <a href="/wiki/Hercules" title="Hercules">Hercules</a>.<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-heading2"><h2 id="Characteristics">Characteristics</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=4" title="Edit section: Characteristics"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>A very large constellation, Cygnus is bordered by Cepheus to the north and east, Draco to the north and west, Lyra to the west, Vulpecula to the south, Pegasus to the southeast and Lacerta to the east. The three-letter abbreviation for the constellation, as adopted by the IAU in 1922, is "Cyg".<sup id="cite_ref-pa30_469_12-0" class="reference"><a href="#cite_note-pa30_469-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> The official constellation boundaries, as set by Belgian astronomer <a href="/wiki/Eug%C3%A8ne_Joseph_Delporte" title="Eugène Joseph Delporte">Eugène Delporte</a> in 1930, are defined as a polygon of 28 segments. In the <a href="/wiki/Equatorial_coordinate_system" title="Equatorial coordinate system">equatorial coordinate system</a>, the <a href="/wiki/Right_ascension" title="Right ascension">right ascension</a> coordinates of these borders lie between <span class="nowrap">19<sup>h</sup> 07.3<sup>m</sup> </span> and <span class="nowrap">22<sup>h</sup> 02.3<sup>m</sup> </span>, while the <a href="/wiki/Declination" title="Declination">declination</a> coordinates are between 27.73° and 61.36°.<sup id="cite_ref-boundary_13-0" class="reference"><a href="#cite_note-boundary-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Covering 804 square degrees and around 1.9% of the night sky, Cygnus ranks 16th of the 88 constellations in size.<sup id="cite_ref-thompson07_14-0" class="reference"><a href="#cite_note-thompson07-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>Cygnus <a href="/wiki/Culmination" title="Culmination">culminates</a> at midnight on 29 June, and is most visible in the evening from the early summer to mid-autumn in the Northern Hemisphere.<sup id="cite_ref-thompson07_14-1" class="reference"><a href="#cite_note-thompson07-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p>Normally, Cygnus is depicted with Delta and Epsilon Cygni as its wings. <a href="/wiki/Deneb" title="Deneb">Deneb</a>, the brightest in the constellation is at its tail, and Albireo as the tip of its beak.<sup id="cite_ref-FOOTNOTERidpathTirion2001134–137_4-1" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>There are several <a href="/wiki/Asterism_(astronomy)" title="Asterism (astronomy)">asterisms</a> in Cygnus. In the 17th-century German celestial cartographer <a href="/wiki/Johann_Bayer" title="Johann Bayer">Johann Bayer</a>'s star atlas the <i>Uranometria</i>, Alpha, Beta and Gamma Cygni form the pole of a cross, while Delta and Epsilon form the cross beam. The nova P Cygni was then considered to be the body of Christ.<sup id="cite_ref-wagman_15-0" class="reference"><a href="#cite_note-wagman-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Features">Features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=5" title="Edit section: Features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Kru%C5%A1n%C3%A9_hory,_Hora_sv._%C5%A0ebesti%C3%A1na,_imgp0651-71info_(2018-05).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/74/Kru%C5%A1n%C3%A9_hory%2C_Hora_sv._%C5%A0ebesti%C3%A1na%2C_imgp0651-71info_%282018-05%29.jpg/220px-Kru%C5%A1n%C3%A9_hory%2C_Hora_sv._%C5%A0ebesti%C3%A1na%2C_imgp0651-71info_%282018-05%29.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/74/Kru%C5%A1n%C3%A9_hory%2C_Hora_sv._%C5%A0ebesti%C3%A1na%2C_imgp0651-71info_%282018-05%29.jpg/330px-Kru%C5%A1n%C3%A9_hory%2C_Hora_sv._%C5%A0ebesti%C3%A1na%2C_imgp0651-71info_%282018-05%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/74/Kru%C5%A1n%C3%A9_hory%2C_Hora_sv._%C5%A0ebesti%C3%A1na%2C_imgp0651-71info_%282018-05%29.jpg/440px-Kru%C5%A1n%C3%A9_hory%2C_Hora_sv._%C5%A0ebesti%C3%A1na%2C_imgp0651-71info_%282018-05%29.jpg 2x" data-file-width="3072" data-file-height="2048" /></a><figcaption>Cygnus is superimposed as main stars constellation over a photo of the according section of the night sky </figcaption></figure> <p>There is an abundance of <a href="/wiki/Deep-sky_object" title="Deep-sky object">deep-sky objects</a>, with many <a href="/wiki/Open_cluster" title="Open cluster">open clusters</a>, <a href="/wiki/Nebula" title="Nebula">nebulae</a> of various types and supernova remnants found in Cygnus due to its position on the Milky Way. </p><p>Its <a href="/wiki/Molecular_cloud" title="Molecular cloud">molecular clouds</a> form the <b>Cygnus Rift</b> <a href="/wiki/Dark_nebula_constellation" class="mw-redirect" title="Dark nebula constellation">dark nebula constellation</a>, comprising one end of the <a href="/wiki/Great_Rift_(astronomy)" title="Great Rift (astronomy)">Great Rift</a> along the Milky Way's <a href="/wiki/Galactic_plane" title="Galactic plane">galactic plane</a>. The rift begins around the <a href="/wiki/Northern_Coalsack" class="mw-redirect" title="Northern Coalsack">Northern Coalsack</a>, and partially obscures the larger <a href="/wiki/Cygnus_molecular_cloud_complex" class="mw-redirect" title="Cygnus molecular cloud complex">Cygnus molecular cloud complex</a> behind it, which the <a href="/wiki/North_America_Nebula" title="North America Nebula">North America Nebula</a> is part of. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:SRG-eROSITA_all-sky_image.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/43/SRG-eROSITA_all-sky_image.jpg/350px-SRG-eROSITA_all-sky_image.jpg" decoding="async" width="350" height="178" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/43/SRG-eROSITA_all-sky_image.jpg/525px-SRG-eROSITA_all-sky_image.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/43/SRG-eROSITA_all-sky_image.jpg/700px-SRG-eROSITA_all-sky_image.jpg 2x" data-file-width="3770" data-file-height="1915" /></a><figcaption>On the left image side are the bright <a href="/wiki/North_America_Nebula" title="North America Nebula">North America Nebula</a> (left bright part) with <a href="/wiki/Sadr_region" class="mw-redirect" title="Sadr region">Sadr region</a> (right bright part) in the <a href="/wiki/Cygnus_X_(star_complex)" title="Cygnus X (star complex)">Cygnus X</a> region, visually interrupted by the Cygnus rift, of the Cygnus constellation, in this x-ray image.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Stars">Stars</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=6" title="Edit section: Stars"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/List_of_stars_in_Cygnus" title="List of stars in Cygnus">List of stars in Cygnus</a></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:CygnusCC.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f5/CygnusCC.jpg/170px-CygnusCC.jpg" decoding="async" width="170" height="250" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f5/CygnusCC.jpg/255px-CygnusCC.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f5/CygnusCC.jpg/340px-CygnusCC.jpg 2x" data-file-width="435" data-file-height="640" /></a><figcaption>The constellation Cygnus as it can be seen by the naked eye, with the <a href="/wiki/Northern_Cross_(asterism)" title="Northern Cross (asterism)">Northern Cross</a> in the middle.</figcaption></figure> <p>Bayer catalogued many stars in the constellation, giving them the <a href="/wiki/Bayer_designation" title="Bayer designation">Bayer designations</a> from Alpha to Omega and then using lowercase Roman letters to g. <a href="/wiki/John_Flamsteed" title="John Flamsteed">John Flamsteed</a> added the Roman letters h, i, k, l and m (these stars were considered <i>informes</i> by Bayer as they lay outside the asterism of Cygnus), but were dropped by <a href="/wiki/Francis_Baily" title="Francis Baily">Francis Baily</a>.<sup id="cite_ref-wagman_15-1" class="reference"><a href="#cite_note-wagman-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:A_young_star_takes_centre_stage.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6a/A_young_star_takes_centre_stage.jpg/220px-A_young_star_takes_centre_stage.jpg" decoding="async" width="220" height="221" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6a/A_young_star_takes_centre_stage.jpg/330px-A_young_star_takes_centre_stage.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6a/A_young_star_takes_centre_stage.jpg/440px-A_young_star_takes_centre_stage.jpg 2x" data-file-width="716" data-file-height="718" /></a><figcaption><a href="/wiki/V1331_Cygni" title="V1331 Cygni">V1331 Cygni</a> is located in the dark cloud LDN 981.<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></figcaption></figure> <p>There are several bright stars in Cygnus. α Cygni, called <a href="/wiki/Deneb" title="Deneb">Deneb</a>, is the brightest star in Cygnus. It is a white <a href="/wiki/Supergiant" title="Supergiant">supergiant</a> star of spectral type A2Iae that varies between magnitudes 1.21 and 1.29,<sup id="cite_ref-AAVSOalf_17-0" class="reference"><a href="#cite_note-AAVSOalf-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> one of the largest and most luminous A-class stars known.<sup id="cite_ref-illinois-deneb_18-0" class="reference"><a href="#cite_note-illinois-deneb-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> It is located about 2600 light-years away.<sup id="cite_ref-earthsky_19-0" class="reference"><a href="#cite_note-earthsky-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> Its traditional name means "tail" and refers to its position in the constellation. <a href="/wiki/Albireo" title="Albireo">Albireo</a>, designated β Cygni, is a celebrated <a href="/wiki/Binary_star" title="Binary star">binary star</a> among amateur astronomers for its contrasting hues. The primary is an orange-hued giant star of magnitude 3.1 and the secondary is a blue-green hued star of magnitude 5.1.<sup id="cite_ref-drimmel2021_20-0" class="reference"><a href="#cite_note-drimmel2021-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> The system is 430 light-years away and is visible in large binoculars and all amateur telescopes.<sup id="cite_ref-illinois-albireo_21-0" class="reference"><a href="#cite_note-illinois-albireo-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Gamma_Cygni" title="Gamma Cygni">γ Cygni</a>, traditionally named Sadr, is a yellow-tinged supergiant star of magnitude 2.2, 1800 light-years away. Its traditional name means "breast" and refers to its position in the constellation.<sup id="cite_ref-illinois-sadr_22-0" class="reference"><a href="#cite_note-illinois-sadr-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Delta_Cygni" title="Delta Cygni">δ Cygni</a> (the proper name is Fawaris<sup id="cite_ref-IAU-LSN_23-0" class="reference"><a href="#cite_note-IAU-LSN-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup>) is another bright binary star in Cygnus, 166 light-years with a period of 800 years. The primary is a blue-white hued giant star of magnitude 2.9, and the secondary is a star of magnitude 6.6. The two components are visible in a medium-sized amateur telescope.<sup id="cite_ref-illinois-deltacygni_24-0" class="reference"><a href="#cite_note-illinois-deltacygni-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> The fifth star in Cygnus above magnitude 3 is Aljanah,<sup id="cite_ref-IAU-LSN_23-1" class="reference"><a href="#cite_note-IAU-LSN-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> designated <a href="/wiki/Epsilon_Cygni" title="Epsilon Cygni">ε Cygni</a>. It is an orange-hued giant star of magnitude 2.5, 72 light-years from Earth.<sup id="cite_ref-illinois-gienah_25-0" class="reference"><a href="#cite_note-illinois-gienah-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FOOTNOTERidpathTirion2001134–37_26-0" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–37-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </p><p>There are several other dimmer double and binary stars in Cygnus. <a href="/wiki/Mu_Cygni" title="Mu Cygni">μ Cygni</a> is a binary star with an optical tertiary component. The binary system has a period of 790 years and is 73 light-years from Earth. The primary and secondary, both white stars, are of magnitude 4.8 and 6.2, respectively. The unrelated tertiary component is of magnitude 6.9. Though the tertiary component is visible in binoculars, the primary and secondary currently require a medium-sized amateur telescope to split, as they will through the year 2020. The two stars will be closest between 2043 and 2050, when they will require a telescope with larger aperture to split. The stars <a href="/wiki/30_Cygni" title="30 Cygni">30</a> and <a href="/wiki/31_Cygni" title="31 Cygni">31 Cygni</a> form a contrasting double star similar to the brighter Albireo. The two are visible in binoculars. The primary, 31 Cygni, is an orange-hued star of magnitude 3.8, 1400 light-years from Earth. The secondary, 30 Cygni, appears blue-green. It is of spectral type A5IIIn and magnitude 4.83, and is around 610 light-years from Earth.<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> 31 Cygni itself is a binary star; the tertiary component is a blue star of magnitude 7.0. <a href="/wiki/Psi_Cygni" title="Psi Cygni">ψ Cygni</a> is a binary star visible in small amateur telescopes, with two white components. The primary is of magnitude 5.0 and the secondary is of magnitude 7.5. <a href="/wiki/61_Cygni" title="61 Cygni">61 Cygni</a> is a binary star visible in large binoculars or a small amateur telescope. It is 11.4 light-years from Earth and has a period of 750 years. Both components are orange-hued dwarf (<a href="/wiki/Main_sequence" title="Main sequence">main sequence</a>) stars; the primary is of magnitude 5.2 and the secondary is of magnitude 6.1. 61 Cygni is significant because <a href="/wiki/Friedrich_Wilhelm_Bessel" title="Friedrich Wilhelm Bessel">Friedrich Wilhelm Bessel</a> determined its <a href="/wiki/Parallax" title="Parallax">parallax</a> in 1838, the first star to have a known parallax.<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><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>Located near <a href="/wiki/Eta_Cygni" title="Eta Cygni">η Cygni</a> is the <a href="/wiki/X-ray" title="X-ray">X-ray</a> source <a href="/wiki/Cygnus_X-1" title="Cygnus X-1">Cygnus X-1</a>, which is now thought to be caused by a <a href="/wiki/Black_hole" title="Black hole">black hole</a> accreting matter in a binary star system. This was the first X-ray source widely believed to be a black hole.<sup id="cite_ref-esa20041105_30-0" class="reference"><a href="#cite_note-esa20041105-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup><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> It is located approximately 2.2 kiloparsecs from the <a href="/wiki/Sun" title="Sun">Sun</a>.<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> There is also <a href="/wiki/Supergiant_star" class="mw-redirect" title="Supergiant star">supergiant</a> <a href="/wiki/Variable_star" title="Variable star">variable star</a> in the system which is known as <a href="/wiki/HDE_226868" class="mw-redirect" title="HDE 226868">HDE 226868</a>.<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Albireo.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/5/57/Albireo.jpg" decoding="async" width="198" height="205" class="mw-file-element" data-file-width="198" data-file-height="205" /></a><figcaption>The two component stars of <a href="/wiki/Albireo" title="Albireo">Albireo</a> are easily distinguished, even in a small telescope.</figcaption></figure> <p>Cygnus also contains several other noteworthy X-ray sources. <a href="/wiki/Cygnus_X-3" title="Cygnus X-3">Cygnus X-3</a> is a <a href="/wiki/Microquasar" title="Microquasar">microquasar</a> containing a <a href="/wiki/Wolf%E2%80%93Rayet_star" title="Wolf–Rayet star">Wolf–Rayet star</a> in orbit around a very compact object,<sup id="cite_ref-2Kim_34-0" class="reference"><a href="#cite_note-2Kim-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> with a period of only 4.8 hours.<sup id="cite_ref-Becker_35-0" class="reference"><a href="#cite_note-Becker-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> The system is one of the most intrinsically luminous X-ray sources observed.<sup id="cite_ref-Koerding_36-0" class="reference"><a href="#cite_note-Koerding-36"><span class="cite-bracket">[</span>36<span class="cite-bracket">]</span></a></sup> The system undergoes periodic outbursts of unknown nature,<sup id="cite_ref-Fender_37-0" class="reference"><a href="#cite_note-Fender-37"><span class="cite-bracket">[</span>37<span class="cite-bracket">]</span></a></sup> and during one such outburst, the system was found to be emitting <a href="/wiki/Muon" title="Muon">muons</a>, likely caused by <a href="/wiki/Neutrino" title="Neutrino">neutrinos</a>.<sup id="cite_ref-Marshak_38-0" class="reference"><a href="#cite_note-Marshak-38"><span class="cite-bracket">[</span>38<span class="cite-bracket">]</span></a></sup> While the compact object is thought to be a <a href="/wiki/Neutron_star" title="Neutron star">neutron star</a> or possibly a black hole,<sup id="cite_ref-Zdziarski_39-0" class="reference"><a href="#cite_note-Zdziarski-39"><span class="cite-bracket">[</span>39<span class="cite-bracket">]</span></a></sup> it is possible that the object is instead a more exotic stellar remnant, possibly the first discovered <a href="/wiki/Quark_star" title="Quark star">quark star</a>, hypothesized due to its production of cosmic rays<sup id="cite_ref-Baym_40-0" class="reference"><a href="#cite_note-Baym-40"><span class="cite-bracket">[</span>40<span class="cite-bracket">]</span></a></sup> that cannot be explained if the object is a normal neutron star. The system also emits <a href="/wiki/Cosmic_ray" title="Cosmic ray">cosmic rays</a> and <a href="/wiki/Gamma_ray" title="Gamma ray">gamma rays</a>, and has helped shed insight on to the formation of such rays.<sup id="cite_ref-MacKeown_41-0" class="reference"><a href="#cite_note-MacKeown-41"><span class="cite-bracket">[</span>41<span class="cite-bracket">]</span></a></sup> <a href="/w/index.php?title=Cygnus_X-2&action=edit&redlink=1" class="new" title="Cygnus X-2 (page does not exist)">Cygnus X-2</a> is another <a href="/wiki/X-ray_binary" title="X-ray binary">X-ray binary</a>, containing an A-type giant in orbit around a neutron star with a 9.8-day period.<sup id="cite_ref-Crampton_42-0" class="reference"><a href="#cite_note-Crampton-42"><span class="cite-bracket">[</span>42<span class="cite-bracket">]</span></a></sup> The system is interesting due to the rather small mass of the companion star, as most <a href="/wiki/Millisecond_pulsar" title="Millisecond pulsar">millisecond pulsars</a> have much more massive companions.<sup id="cite_ref-King_43-0" class="reference"><a href="#cite_note-King-43"><span class="cite-bracket">[</span>43<span class="cite-bracket">]</span></a></sup> Another black hole in Cygnus is <a href="/wiki/V404_Cygni" title="V404 Cygni">V404 Cygni</a>, which consists of a <a href="/wiki/K-type_star" class="mw-redirect" title="K-type star">K-type star</a> orbiting around a black hole of around 12 solar masses.<sup id="cite_ref-Shahbaz_44-0" class="reference"><a href="#cite_note-Shahbaz-44"><span class="cite-bracket">[</span>44<span class="cite-bracket">]</span></a></sup> The black hole, similar to that of Cygnus X-3, has been hypothesized to be a quark star.<sup id="cite_ref-Kovács_45-0" class="reference"><a href="#cite_note-Kovács-45"><span class="cite-bracket">[</span>45<span class="cite-bracket">]</span></a></sup> <a href="/w/index.php?title=4U_2129%2B_47&action=edit&redlink=1" class="new" title="4U 2129+ 47 (page does not exist)">4U 2129+ 47</a> is another X-ray binary containing a neutron star which undergoes outbursts,<sup id="cite_ref-Nowak_46-0" class="reference"><a href="#cite_note-Nowak-46"><span class="cite-bracket">[</span>46<span class="cite-bracket">]</span></a></sup> as is <a href="/w/index.php?title=EXO_2030%2B_375&action=edit&redlink=1" class="new" title="EXO 2030+ 375 (page does not exist)">EXO 2030+ 375</a>.<sup id="cite_ref-WilsonC_47-0" class="reference"><a href="#cite_note-WilsonC-47"><span class="cite-bracket">[</span>47<span class="cite-bracket">]</span></a></sup> </p><p>Cygnus is also home to several <a href="/wiki/Variable_star" title="Variable star">variable stars</a>. <a href="/wiki/SS_Cygni" title="SS Cygni">SS Cygni</a> is a <a href="/wiki/Dwarf_nova" title="Dwarf nova">dwarf nova</a> which undergoes outbursts every 7–8 weeks. The system's total magnitude varies from 12th magnitude at its dimmest to 8th magnitude at its brightest. The two objects in the system are incredibly close together, with an orbital period of less than 0.28 days.<sup id="cite_ref-Honey_48-0" class="reference"><a href="#cite_note-Honey-48"><span class="cite-bracket">[</span>48<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Chi_Cygni" title="Chi Cygni">χ Cygni</a> is a <a href="/wiki/Red_giant" title="Red giant">red giant</a> and the second-brightest <a href="/wiki/Mira_variable" title="Mira variable">Mira variable</a> star at its maximum. It ranges between magnitudes 3.3 and 14.2, and spectral types S6,2e to S10,4e (MSe) over a period of 408 days;<sup id="cite_ref-AAVSOchi_49-0" class="reference"><a href="#cite_note-AAVSOchi-49"><span class="cite-bracket">[</span>49<span class="cite-bracket">]</span></a></sup> it has a diameter of 300 <a href="/wiki/Solar_diameter" class="mw-redirect" title="Solar diameter">solar diameters</a> and is 350 light-years from Earth. <a href="/wiki/P_Cygni" title="P Cygni">P Cygni</a> is a <a href="/wiki/Luminous_blue_variable" title="Luminous blue variable">luminous blue variable</a> that brightened suddenly to 3rd magnitude in 1600 AD. Since 1715, the star has been of 5th magnitude,<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> despite being more than 5000 light-years from Earth. The star's <a href="/wiki/Stellar_spectrum" class="mw-redirect" title="Stellar spectrum">spectrum</a> is unusual in that it contains very strong emission lines resulting from surrounding nebulosity.<sup id="cite_ref-Markova_51-0" class="reference"><a href="#cite_note-Markova-51"><span class="cite-bracket">[</span>51<span class="cite-bracket">]</span></a></sup> <a href="/wiki/W_Cygni" title="W Cygni">W Cygni</a> is a <a href="/wiki/Semi-regular_variable" class="mw-redirect" title="Semi-regular variable">semi-regular variable</a> <a href="/wiki/Red_giant" title="Red giant">red giant</a> star, 618 light-years from Earth.It has a maximum magnitude of 5.10 and a minimum magnitude 6.83; its period of 131 days. It is a <a href="/wiki/Red_giant" title="Red giant">red giant</a> ranging between spectral types M4e-M6e(Tc:)III,<sup id="cite_ref-AAVSOW_52-0" class="reference"><a href="#cite_note-AAVSOW-52"><span class="cite-bracket">[</span>52<span class="cite-bracket">]</span></a></sup> <a href="/wiki/NML_Cygni" title="NML Cygni">NML Cygni</a> is a red <a href="/wiki/Hypergiant" title="Hypergiant">hypergiant</a> semi-regular variable star located at 5,300 light-years away from Earth. It is <a href="/wiki/List_of_largest_known_stars" class="mw-redirect" title="List of largest known stars">one of largest stars currently known</a> in the galaxy with a radius exceeding 1,000 <a href="/wiki/Solar_radius" title="Solar radius">solar radii</a>.<sup id="cite_ref-53" class="reference"><a href="#cite_note-53"><span class="cite-bracket">[</span>53<span class="cite-bracket">]</span></a></sup> Its magnitude is around 16.6, its period is about 940 days.<sup id="cite_ref-Imaging_the_Cool_Hypergiant_NML_Cygni’s_Dusty_Circumstellar_Envelope_with_Adaptive_Optics_54-0" class="reference"><a href="#cite_note-Imaging_the_Cool_Hypergiant_NML_Cygni’s_Dusty_Circumstellar_Envelope_with_Adaptive_Optics-54"><span class="cite-bracket">[</span>54<span class="cite-bracket">]</span></a></sup> </p><p>The star <a href="/wiki/KIC_8462852" class="mw-redirect" title="KIC 8462852">KIC 8462852</a> (Tabby's Star) has received widespread press coverage because of unusual light fluctuations.<sup id="cite_ref-55" class="reference"><a href="#cite_note-55"><span class="cite-bracket">[</span>55<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Exoplanets">Exoplanets</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=7" title="Edit section: Exoplanets"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Cygnus is one of the constellations that the <a href="/wiki/Kepler_space_telescope" title="Kepler space telescope">Kepler satellite</a> surveyed in its search for <a href="/wiki/Exoplanet" title="Exoplanet">exoplanets</a>, and as a result, there are about a hundred stars in Cygnus with known planets, the most of any constellation.<sup id="cite_ref-KeplerLocation_56-0" class="reference"><a href="#cite_note-KeplerLocation-56"><span class="cite-bracket">[</span>56<span class="cite-bracket">]</span></a></sup> One of the most notable systems is the <a href="/wiki/Kepler-11" title="Kepler-11">Kepler-11</a> system, containing six <a href="/wiki/Transiting_planet" class="mw-redirect" title="Transiting planet">transiting planets</a>, all within a plane of approximately one degree. It was the system with six exoplanets to be discovered.<sup id="cite_ref-Lissauer2011_Kepler-11_57-0" class="reference"><a href="#cite_note-Lissauer2011_Kepler-11-57"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup> With a spectral type of G6V, the star is somewhat cooler than the Sun. The planets are very close to the star; all but the last planet are closer to Kepler-11 than <a href="/wiki/Mercury_(planet)" title="Mercury (planet)">Mercury</a> is to the Sun, and all the planets are more massive than Earth, and have low densities. The planets have low densities.<sup id="cite_ref-Lissauer2013_Kepler-11_58-0" class="reference"><a href="#cite_note-Lissauer2013_Kepler-11-58"><span class="cite-bracket">[</span>58<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Lissauer2011_Kepler-11_57-1" class="reference"><a href="#cite_note-Lissauer2011_Kepler-11-57"><span class="cite-bracket">[</span>57<span class="cite-bracket">]</span></a></sup> The naked-eye star <a href="/wiki/16_Cygni" title="16 Cygni">16 Cygni</a>, a triple star approximately 70 light-years from Earth composed two Sun-like stars and a <a href="/wiki/Red_dwarf" title="Red dwarf">red dwarf</a>,<sup id="cite_ref-Raghavan_59-0" class="reference"><a href="#cite_note-Raghavan-59"><span class="cite-bracket">[</span>59<span class="cite-bracket">]</span></a></sup> contains a planet orbiting one of the sun-like stars, found due to variations in the star's radial velocity.<sup id="cite_ref-truemass_60-0" class="reference"><a href="#cite_note-truemass-60"><span class="cite-bracket">[</span>60<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Gliese_777" title="Gliese 777">Gliese 777</a>, another naked-eye multiple star system containing a yellow star and a red dwarf, also contains a planet. The planet is somewhat similar to <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>, but with slightly more mass and a more eccentric orbit.<sup id="cite_ref-Naef2003_61-0" class="reference"><a href="#cite_note-Naef2003-61"><span class="cite-bracket">[</span>61<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Vogt2005_62-0" class="reference"><a href="#cite_note-Vogt2005-62"><span class="cite-bracket">[</span>62<span class="cite-bracket">]</span></a></sup> The <a href="/wiki/Kepler-22" title="Kepler-22">Kepler-22</a> system is also notable for having the most Earth-like exoplanet when it was discovered in 2011.<sup id="cite_ref-bbc20111205_63-0" class="reference"><a href="#cite_note-bbc20111205-63"><span class="cite-bracket">[</span>63<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Star_clusters">Star clusters</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=8" title="Edit section: Star clusters"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The rich background of stars of Cygnus can make it difficult to make out <a href="/wiki/Open_cluster" title="Open cluster">open cluster</a>.<sup id="cite_ref-thompson07_14-2" class="reference"><a href="#cite_note-thompson07-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Messier_39" title="Messier 39">M39</a> (NGC 7092) is an open cluster 950 light-years from Earth that are visible to the unaided eye under dark skies. It is loose, with about 30 stars arranged over a wide area; their conformation appears triangular. The brightest stars of M39 are of the 7th magnitude.<sup id="cite_ref-FOOTNOTERidpathTirion2001134–137_4-2" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Another open cluster in Cygnus is <a href="/wiki/NGC_6910" title="NGC 6910">NGC 6910</a>, also called the Rocking Horse Cluster, possessing 16 stars with a diameter of 5 arcminutes visible in a small amateur instrument; it is of magnitude 7.4. The brightest of these are two gold-hued stars, which represent the bottom of the toy it is named for. A larger amateur instrument reveals 8 more stars, nebulosity to the east and west of the cluster, and a diameter of 9 arcminutes. The nebulosity in this region is part of the <a href="/wiki/Gamma_Cygni_Nebula" class="mw-redirect" title="Gamma Cygni Nebula">Gamma Cygni Nebula</a>. The other stars, approximately 3700 light-years from Earth, are mostly blue-white and very hot.<sup id="cite_ref-S&T_64-0" class="reference"><a href="#cite_note-S&T-64"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup> </p><p>Other open clusters in Cygnus include <a href="/w/index.php?title=Dolidze_9&action=edit&redlink=1" class="new" title="Dolidze 9 (page does not exist)">Dolidze 9</a>, <a href="/w/index.php?title=Collinder_421&action=edit&redlink=1" class="new" title="Collinder 421 (page does not exist)">Collinder 421</a>, <a href="/w/index.php?title=Dolidze_11&action=edit&redlink=1" class="new" title="Dolidze 11 (page does not exist)">Dolidze 11</a>, and <a href="/w/index.php?title=Berkeley_90&action=edit&redlink=1" class="new" title="Berkeley 90 (page does not exist)">Berkeley 90</a>. Dolidze 9, 2800 light-years from Earth and relatively young at 20 million light-years old, is a faint open cluster with up to 22 stars visible in small and medium-sized amateur telescopes. Nebulosity is visible to the north and east of the cluster, which is 7 arcminutes in diameter. The brightest star appears in the eastern part of the cluster and is of the 7th magnitude; another bright star has a yellow hue. Dolidze 11 is an open cluster 400 million years old, farthest away of the three at 3700 light-years. More than 10 stars are visible in an amateur instrument in this cluster, of similar size to Dolidze 9 at 7 arcminutes in diameter, whose brightest star is of magnitude 7.5. It, too, has nebulosity in the east. Collinder 421 is a particularly old open cluster at an age of approximately 1 billion years; it is of magnitude 10.1. 3100 light-years from Earth, more than 30 stars are visible in a diameter of 8 arcseconds. The prominent star in the north of the cluster has a golden color, whereas the stars in the south of the cluster appear orange. Collinder 421 appears to be embedded in nebulosity, which extends past the cluster's borders to its west. Berkeley 90 is a smaller open cluster, with a diameter of 5 arcminutes. More than 16 members appear in an amateur telescope.<sup id="cite_ref-S&T_64-1" class="reference"><a href="#cite_note-S&T-64"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Molecular_clouds">Molecular clouds</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=9" title="Edit section: Molecular clouds"><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:NGC7000_North_America_Nebula.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/NGC7000_North_America_Nebula.jpg/220px-NGC7000_North_America_Nebula.jpg" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e7/NGC7000_North_America_Nebula.jpg/330px-NGC7000_North_America_Nebula.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e7/NGC7000_North_America_Nebula.jpg/440px-NGC7000_North_America_Nebula.jpg 2x" data-file-width="1500" data-file-height="1500" /></a><figcaption>The <a href="/wiki/North_America_Nebula" title="North America Nebula">North America Nebula</a> (NGC 7000) is one of the most well-known nebulae in Cygnus.</figcaption></figure> <p><a href="/wiki/NGC_6826" title="NGC 6826">NGC 6826</a>, the Blinking Planetary Nebula, is a <a href="/wiki/Planetary_nebula" title="Planetary nebula">planetary nebula</a> with a magnitude of 8.5, 3200 light-years from Earth. It appears to "blink" in the eyepiece of a telescope because its central star is unusually bright<sup id="cite_ref-FOOTNOTELevy2005130–131_65-0" class="reference"><a href="#cite_note-FOOTNOTELevy2005130–131-65"><span class="cite-bracket">[</span>65<span class="cite-bracket">]</span></a></sup> (10th magnitude).<sup id="cite_ref-FOOTNOTERidpathTirion2001134–137_4-3" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> When an observer focuses on the star, the nebula appears to fade away.<sup id="cite_ref-FOOTNOTELevy2005130–131_65-1" class="reference"><a href="#cite_note-FOOTNOTELevy2005130–131-65"><span class="cite-bracket">[</span>65<span class="cite-bracket">]</span></a></sup> Less than one degree from the Blinking Planetary is the double star 16 Cygni.<sup id="cite_ref-FOOTNOTERidpathTirion2001134–137_4-4" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The <a href="/wiki/North_America_Nebula" title="North America Nebula">North America Nebula</a> (NGC 7000) is one of the most well-known nebulae in Cygnus, because it is visible to the unaided eye under dark skies, as a bright patch in the Milky Way. However, its characteristic shape is only visible in long-exposure photographs – it is difficult to observe in telescopes because of its low <a href="/wiki/Surface_brightness" title="Surface brightness">surface brightness</a>. It has low surface brightness because it is so large; at its widest, the North America Nebula is 2 degrees across. Illuminated by a hot embedded star of magnitude 6, NGC 7000 is 1500 light-years from Earth.<sup id="cite_ref-FOOTNOTERidpathTirion2001134–137_4-5" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Veil_Nebula_2015-08-15_42_30s-ISO1600_AB_42_136-117-185_CVF.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Veil_Nebula_2015-08-15_42_30s-ISO1600_AB_42_136-117-185_CVF.jpg/260px-Veil_Nebula_2015-08-15_42_30s-ISO1600_AB_42_136-117-185_CVF.jpg" decoding="async" width="260" height="173" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Veil_Nebula_2015-08-15_42_30s-ISO1600_AB_42_136-117-185_CVF.jpg/390px-Veil_Nebula_2015-08-15_42_30s-ISO1600_AB_42_136-117-185_CVF.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9c/Veil_Nebula_2015-08-15_42_30s-ISO1600_AB_42_136-117-185_CVF.jpg/520px-Veil_Nebula_2015-08-15_42_30s-ISO1600_AB_42_136-117-185_CVF.jpg 2x" data-file-width="3888" data-file-height="2592" /></a><figcaption>NGC 6992 (Eastern Veil Nebula – center) and NGC 6960 (Western Veil Nebula – upper right) photographed from a dark site</figcaption></figure> <p>To the south of <a href="/wiki/Epsilon_Cygni" title="Epsilon Cygni">Epsilon Cygni</a> is the <a href="/wiki/Veil_Nebula" title="Veil Nebula">Veil Nebula</a> (NGC 6960, 6979, 6992, and 6995), a 5,000-year-old <a href="/wiki/Supernova_remnant" title="Supernova remnant">supernova remnant</a> covering approximately 3 degrees of the sky -<sup id="cite_ref-objects_66-0" class="reference"><a href="#cite_note-objects-66"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup> it is over 50 light-years long.<sup id="cite_ref-FOOTNOTERidpathTirion2001134–137_4-6" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> Because of its appearance, it is also called the <a href="/wiki/Cygnus_Loop" title="Cygnus Loop">Cygnus Loop</a>.<sup id="cite_ref-objects_66-1" class="reference"><a href="#cite_note-objects-66"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup> The Loop is only visible in long-exposure astrophotographs. However, the brightest portion, NGC 6992, is faintly visible in binoculars, and a dimmer portion, NGC 6960, is visible in wide-angle telescopes.<sup id="cite_ref-FOOTNOTERidpathTirion2001134–137_4-7" class="reference"><a href="#cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>The <a href="/wiki/DR_6_nebula" class="mw-redirect" title="DR 6 nebula">DR 6 cluster</a> is also nicknamed the "Galactic Ghoul" because of the nebula's resemblance to a human face;<sup id="cite_ref-NASA2_67-0" class="reference"><a href="#cite_note-NASA2-67"><span class="cite-bracket">[</span>67<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Stars_Brewing_in_Cygnus_X.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/74/Stars_Brewing_in_Cygnus_X.jpg/220px-Stars_Brewing_in_Cygnus_X.jpg" decoding="async" width="220" height="200" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/74/Stars_Brewing_in_Cygnus_X.jpg/330px-Stars_Brewing_in_Cygnus_X.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/74/Stars_Brewing_in_Cygnus_X.jpg/440px-Stars_Brewing_in_Cygnus_X.jpg 2x" data-file-width="8800" data-file-height="8000" /></a><figcaption><a href="/wiki/Cygnus-X_(star_complex)" class="mw-redirect" title="Cygnus-X (star complex)">Cygnus X</a>, a large region of star-formation in Cygnus</figcaption></figure> <p>The <a href="/wiki/Gamma_Cygni_Nebula" class="mw-redirect" title="Gamma Cygni Nebula">Gamma Cygni Nebula</a> (IC 1318) includes both bright and dark nebulae in an area of over 4 degrees. <a href="/w/index.php?title=DWB_87&action=edit&redlink=1" class="new" title="DWB 87 (page does not exist)">DWB 87</a> is another of the many bright emission nebulae in Cygnus, 7.8 by 4.3 arcminutes. It is in the Gamma Cygni area. Two other emission nebulae include <a href="/w/index.php?title=Sharpless_2-112&action=edit&redlink=1" class="new" title="Sharpless 2-112 (page does not exist)">Sharpless 2-112</a> and <a href="/w/index.php?title=Sharpless_2-115&action=edit&redlink=1" class="new" title="Sharpless 2-115 (page does not exist)">Sharpless 2-115</a>. When viewed in an amateur telescope, Sharpless 2–112 appears to be in a teardrop shape. More of the nebula's eastern portion is visible with an <a href="/wiki/O_III" class="mw-redirect" title="O III">O III</a> (doubly ionized oxygen) filter. There is an orange star of magnitude 10 nearby and a star of magnitude 9 near the nebula's northwest edge. Further to the northwest, there is a dark rift and another bright patch. The whole nebula measures 15 arcminutes in diameter. Sharpless 2–115 is another emission nebula with a complex pattern of light and dark patches. Two pairs of stars appear in the nebula; it is larger near the southwestern pair. The open cluster Berkeley 90 is embedded in this large nebula, which measures 30 by 20 arcminutes.<sup id="cite_ref-S&T_64-2" class="reference"><a href="#cite_note-S&T-64"><span class="cite-bracket">[</span>64<span class="cite-bracket">]</span></a></sup> </p><p>Also of note is the <a href="/wiki/Crescent_Nebula" title="Crescent Nebula">Crescent Nebula</a> (NGC 6888), located between Gamma and Eta Cygni, which was formed by the <a href="/wiki/Wolf%E2%80%93Rayet_star" title="Wolf–Rayet star">Wolf–Rayet star</a> <a href="/wiki/WR_136" title="WR 136">HD 192163</a>. </p><p>In recent years, amateur astronomers have made some notable Cygnus discoveries. The "<a href="/wiki/Soap_bubble_nebula" class="mw-redirect" title="Soap bubble nebula">Soap bubble nebula</a>" (PN G75.5+1.7), near the Crescent nebula, was discovered on a digital image by Dave Jurasevich in 2007. In 2011, Austrian amateur Matthias Kronberger discovered a planetary nebula (<a href="/wiki/Kronberger_61" title="Kronberger 61">Kronberger 61</a>, now nicknamed "The Soccer Ball") on old survey photos, confirmed recently in images by the Gemini Observatory; both of these are likely too faint to be detected by eye in a small amateur scope. </p><p>But a much more obscure and relatively 'tiny' object—one which is readily seen in dark skies by amateur telescopes, under good conditions—is the newly discovered nebula (likely reflection type) associated with the star 4 Cygni (HD 183056): an approximately fan-shaped glowing region of several arcminutes' diameter, to the south and west of the fifth-magnitude star. It was first discovered visually near San Jose, California and publicly reported by amateur astronomer Stephen Waldee in 2007, and was confirmed photographically by Al Howard in 2010. California amateur astronomer Dana Patchick also says he detected it on the Palomar Observatory survey photos in 2005 but had not published it for others to confirm and analyze at the time of Waldee's first official notices and later 2010 paper. </p><p><a href="/wiki/Cygnus-X_(star_complex)" class="mw-redirect" title="Cygnus-X (star complex)">Cygnus X</a> is the largest star-forming region in the <a href="/wiki/Solar_neighborhood" class="mw-redirect" title="Solar neighborhood">solar neighborhood</a> and includes not only some of the <a href="/wiki/Most_luminous_stars" class="mw-redirect" title="Most luminous stars">brightest</a> and <a href="/wiki/List_of_most_massive_stars" title="List of most massive stars">most massive</a> stars known (such as <a href="/wiki/Cygnus_OB2-12" title="Cygnus OB2-12">Cygnus OB2-12</a>), but also <a href="/wiki/Cygnus_OB2" title="Cygnus OB2">Cygnus OB2</a>, a massive <a href="/wiki/Stellar_association" title="Stellar association">stellar association</a> classified by some authors as a young <a href="/wiki/Globular_cluster" title="Globular cluster">globular cluster</a>. </p><p><br /> </p> <div class="mw-heading mw-heading3"><h3 id="Deep_space_objects">Deep space objects</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=10" title="Edit section: Deep space objects"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/Cygnus_A" title="Cygnus A">Cygnus A</a> is the first <a href="/wiki/Radio_galaxy" title="Radio galaxy">radio galaxy</a> discovered; at a distance of 730 million light-years from Earth, it is the closest powerful radio galaxy. In the <a href="/wiki/Visible_spectrum" title="Visible spectrum">visible spectrum</a>, it appears as an <a href="/wiki/Elliptical_galaxy" title="Elliptical galaxy">elliptical galaxy</a> in a small <a href="/wiki/Galaxy_cluster" title="Galaxy cluster">cluster</a>. It is classified as an <a href="/wiki/Active_galaxy" class="mw-redirect" title="Active galaxy">active galaxy</a> because the <a href="/wiki/Supermassive_black_hole" title="Supermassive black hole">supermassive black hole</a> at its <a href="/wiki/Active_galactic_nucleus" title="Active galactic nucleus">nucleus</a> is accreting matter, which produces two <a href="/wiki/Astrophysical_jet" title="Astrophysical jet">jets</a> of matter from the poles. The jets' interaction with the <a href="/wiki/Interstellar_medium" title="Interstellar medium">interstellar medium</a> creates radio lobes, one source of radio emissions.<sup id="cite_ref-objects_66-2" class="reference"><a href="#cite_note-objects-66"><span class="cite-bracket">[</span>66<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Other_features">Other features</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=11" title="Edit section: Other features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Cygnus is also the apparent source of the <a href="/wiki/Weakly_interacting_massive_particle" title="Weakly interacting massive particle">WIMP</a>-wind due to the orientation of the solar system's rotation through the galactic halo.<sup id="cite_ref-68" class="reference"><a href="#cite_note-68"><span class="cite-bracket">[</span>68<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-69" class="reference"><a href="#cite_note-69"><span class="cite-bracket">[</span>69<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Milky_Way_Arms_ssc2008-10.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a7/Milky_Way_Arms_ssc2008-10.svg/300px-Milky_Way_Arms_ssc2008-10.svg.png" decoding="async" width="300" height="270" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a7/Milky_Way_Arms_ssc2008-10.svg/450px-Milky_Way_Arms_ssc2008-10.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a7/Milky_Way_Arms_ssc2008-10.svg/600px-Milky_Way_Arms_ssc2008-10.svg.png 2x" data-file-width="512" data-file-height="461" /></a><figcaption>Diagram of the <a href="/wiki/Milky_Way" title="Milky Way">Milky Way</a>'s spiral arms</figcaption></figure> <p>The local <a href="/wiki/Orion-Cygnus_Arm" class="mw-redirect" title="Orion-Cygnus Arm">Orion-Cygnus Arm</a> and the distant <a href="/wiki/Cygnus_Arm" class="mw-redirect" title="Cygnus Arm">Cygnus Arm</a> are two minor <a href="/wiki/Galactic_arm" class="mw-redirect" title="Galactic arm">galactic arms</a> named after Cygnus for lying in its background. </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=Cygnus_(constellation)&action=edit&section=12" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Cygnus_in_Chinese_astronomy" title="Cygnus in Chinese astronomy">Cygnus in Chinese astronomy</a></li> <li><a href="/wiki/Cygnus_(spacecraft)" title="Cygnus (spacecraft)">Cygnus (spacecraft)</a></li></ul> <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=Cygnus_(constellation)&action=edit&section=13" 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"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-Starwatch-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Starwatch_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Starwatch_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 id="CITEREFStuart_Clark2018" class="citation web cs1">Stuart Clark (29 July 2018). <a rel="nofollow" class="external text" href="https://www.theguardian.com/science/2018/jul/29/starwatch-the-bright-stars-of-the-summer-triangle">"Starwatch: the bright stars of the Summer Triangle"</a>. <i>The Guardian</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Guardian&rft.atitle=Starwatch%3A+the+bright+stars+of+the+Summer+Triangle&rft.date=2018-07-29&rft.au=Stuart+Clark&rft_id=https%3A%2F%2Fwww.theguardian.com%2Fscience%2F2018%2Fjul%2F29%2Fstarwatch-the-bright-stars-of-the-summer-triangle&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFChandra_X-ray_Observatory2012" class="citation web cs1"><a href="/wiki/Chandra_X-ray_Observatory" title="Chandra X-ray Observatory">Chandra X-ray Observatory</a> (8 November 2012). <a rel="nofollow" class="external text" href="https://scitechdaily.com/star-cluster-cygnus-ob2/">"Star Cluster Cygnus OB2"</a>. <i>SciTechDaily</i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=SciTechDaily&rft.atitle=Star+Cluster+Cygnus+OB2&rft.date=2012-11-08&rft.au=Chandra+X-ray+Observatory&rft_id=https%3A%2F%2Fscitechdaily.com%2Fstar-cluster-cygnus-ob2%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-FOOTNOTEMakemson1941282-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-FOOTNOTEMakemson1941282_3-0">^</a></b></span> <span class="reference-text"><a href="#CITEREFMakemson1941">Makemson 1941</a>, p. 282.</span> </li> <li id="cite_note-FOOTNOTERidpathTirion2001134–137-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-FOOTNOTERidpathTirion2001134–137_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FOOTNOTERidpathTirion2001134–137_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-FOOTNOTERidpathTirion2001134–137_4-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-FOOTNOTERidpathTirion2001134–137_4-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-FOOTNOTERidpathTirion2001134–137_4-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-FOOTNOTERidpathTirion2001134–137_4-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-FOOTNOTERidpathTirion2001134–137_4-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-FOOTNOTERidpathTirion2001134–137_4-7"><sup><i><b>h</b></i></sup></a></span> <span class="reference-text"><a href="#CITEREFRidpathTirion2001">Ridpath & Tirion 2001</a>, pp. 134–137.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text">P.K. Chen (2007)<i> A Constellation Album: Stars and Mythology of the Night Sky</i>, p. 70 (<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-931559-38-6" title="Special:BookSources/978-1-931559-38-6">978-1-931559-38-6</a>).</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPausanias" class="citation book cs1"><a href="/wiki/Pausanias_(geographer)" title="Pausanias (geographer)">Pausanias</a>. <i><a href="/wiki/Description_of_Greece" title="Description of Greece">Description of Greece</a></i>. <a rel="nofollow" class="external text" href="http://www.perseus.tufts.edu/hopper/text.jsp?doc=Paus.+1.30.3&fromdoc=Perseus%3Atext%3A1999.01.0160">1.30.3</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Description+of+Greece&rft.pages=1.30.3&rft.au=Pausanias&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-msh-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-msh_7-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMaurus_Servius_Honoratus" class="citation book cs1"><a href="/wiki/Maurus_Servius_Honoratus" class="mw-redirect" title="Maurus Servius Honoratus">Maurus Servius Honoratus</a>. <i>On <a href="/wiki/Aeneid" title="Aeneid">Aeneid</a></i>. <a rel="nofollow" class="external text" href="http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.02.0053%3Abook%3D10%3Acommline%3D189">10.189</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=On+Aeneid&rft.pages=10.189&rft.au=Maurus+Servius+Honoratus&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGrimalKershaw1990" class="citation book cs1">Grimal, Pierre; Kershaw, Stephen (1990). <a rel="nofollow" class="external text" href="https://archive.org/details/concisedictionar00grim/page/114/mode/2up?view=theater"><i>A concise dictionary of classical mythology</i></a>. Internet Archive (Reprint. 1994 ed.). Oxford, England ; Cambridge, Mass., USA : Blackwell. p. 114. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-631-16696-2" title="Special:BookSources/978-0-631-16696-2"><bdi>978-0-631-16696-2</bdi></a><span class="reference-accessdate">. Retrieved <span class="nowrap">2 November</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=A+concise+dictionary+of+classical+mythology&rft.pages=114&rft.edition=Reprint.+1994&rft.pub=Oxford%2C+England+%3B+Cambridge%2C+Mass.%2C+USA+%3A+Blackwell&rft.date=1990&rft.isbn=978-0-631-16696-2&rft.aulast=Grimal&rft.aufirst=Pierre&rft.au=Kershaw%2C+Stephen&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fconcisedictionar00grim%2Fpage%2F114%2Fmode%2F2up%3Fview%3Dtheater&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_book" title="Template:Cite book">cite book</a>}}</code>: CS1 maint: date and year (<a href="/wiki/Category:CS1_maint:_date_and_year" title="Category:CS1 maint: date and year">link</a>)</span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><a href="/wiki/Ovid" title="Ovid">Ovid</a>, <i><a href="/wiki/Metamorphoses" title="Metamorphoses">Metamorphoses</a></i> 7.371 ff.</span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"><a href="/wiki/Ovid" title="Ovid">Ovid</a>, <i><a href="/wiki/Metamorphoses" title="Metamorphoses">Metamorphoses</a></i> 12.64–145</span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text">Allen (1963) p. 56.</span> </li> <li id="cite_note-pa30_469-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-pa30_469_12-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRussell1922" class="citation journal cs1"><a href="/wiki/Henry_Norris_Russell" title="Henry Norris Russell">Russell, Henry Norris</a> (1922). "The New International Symbols for the Constellations". <i>Popular Astronomy</i>. <b>30</b>: 469. <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/1922PA.....30..469R">1922PA.....30..469R</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Popular+Astronomy&rft.atitle=The+New+International+Symbols+for+the+Constellations&rft.volume=30&rft.pages=469&rft.date=1922&rft_id=info%3Abibcode%2F1922PA.....30..469R&rft.aulast=Russell&rft.aufirst=Henry+Norris&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-boundary-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-boundary_13-0">^</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="https://www.iau.org/public/themes/constellations/#cyg">"Cygnus, Constellation Boundary"</a>. <i>The Constellations</i><span class="reference-accessdate">. Retrieved <span class="nowrap">9 December</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Constellations&rft.atitle=Cygnus%2C+Constellation+Boundary&rft_id=https%3A%2F%2Fwww.iau.org%2Fpublic%2Fthemes%2Fconstellations%2F%23cyg&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-thompson07-14"><span class="mw-cite-backlink">^ <a href="#cite_ref-thompson07_14-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-thompson07_14-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-thompson07_14-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFThompsonThompson,_Barbara2007" class="citation book cs1">Thompson, Robert; Thompson, Barbara (2007). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=ymt9nj_uPhwC&pg=PA214"><i>Illustrated Guide to Astronomical Wonders: From Novice to Master Observer</i></a>. Sebastopol, California: O'Reilly Media. pp. 214–15. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-596-52685-6" title="Special:BookSources/978-0-596-52685-6"><bdi>978-0-596-52685-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Illustrated+Guide+to+Astronomical+Wonders%3A+From+Novice+to+Master+Observer&rft.place=Sebastopol%2C+California&rft.pages=214-15&rft.pub=O%27Reilly+Media&rft.date=2007&rft.isbn=978-0-596-52685-6&rft.aulast=Thompson&rft.aufirst=Robert&rft.au=Thompson%2C+Barbara&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3Dymt9nj_uPhwC%26pg%3DPA214&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-wagman-15"><span class="mw-cite-backlink">^ <a href="#cite_ref-wagman_15-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-wagman_15-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWagman2003" class="citation book cs1">Wagman, Morton (2003). <i>Lost Stars: Lost, Missing and Troublesome Stars from the Catalogues of Johannes Bayer, Nicholas Louis de Lacaille, John Flamsteed, and Sundry Others</i>. 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(2021). <a rel="nofollow" class="external text" href="https://doi.org/10.1093%2Fmnras%2Fstaa4038">"A celestial matryoshka: Dynamical and spectroscopic analysis of the Albireo system"</a>. <i>Monthly Notices of the Royal Astronomical Society</i>. <b>502</b> (1): 328. <a href="/wiki/ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/2012.01277">2012.01277</a></span>. <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/2021MNRAS.502..328D">2021MNRAS.502..328D</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/10.1093%2Fmnras%2Fstaa4038">10.1093/mnras/staa4038</a></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Monthly+Notices+of+the+Royal+Astronomical+Society&rft.atitle=A+celestial+matryoshka%3A+Dynamical+and+spectroscopic+analysis+of+the+Albireo+system&rft.volume=502&rft.issue=1&rft.pages=328&rft.date=2021&rft_id=info%3Aarxiv%2F2012.01277&rft_id=info%3Adoi%2F10.1093%2Fmnras%2Fstaa4038&rft_id=info%3Abibcode%2F2021MNRAS.502..328D&rft.aulast=Drimmel&rft.aufirst=Ronald&rft.au=Sozzetti%2C+Alessandro&rft.au=Schr%C3%B6der%2C+Klaus-Peter&rft.au=Bastian%2C+Ulrich&rft.au=Pinamonti%2C+Matteo&rft.au=Jack%2C+Dennis&rft.au=Hern%C3%A1ndez+Huerta%2C+Missael+A.&rft_id=https%3A%2F%2Fdoi.org%2F10.1093%252Fmnras%252Fstaa4038&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-illinois-albireo-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-illinois-albireo_21-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJim_Kaler" class="citation web cs1">Jim Kaler. <a rel="nofollow" class="external text" href="http://stars.astro.illinois.edu/sow/albireo.html">"Albireo"</a>. <i>Stars</i><span class="reference-accessdate">. Retrieved <span class="nowrap">15 January</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Stars&rft.atitle=Albireo&rft.au=Jim+Kaler&rft_id=http%3A%2F%2Fstars.astro.illinois.edu%2Fsow%2Falbireo.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-illinois-sadr-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-illinois-sadr_22-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJim_Kaler2012" class="citation web cs1">Jim Kaler (30 November 2012). <a rel="nofollow" class="external text" href="http://stars.astro.illinois.edu/sow/sadr.html">"Sadr"</a>. <i>Stars</i><span class="reference-accessdate">. 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(1 November 2004). <a rel="nofollow" class="external text" href="https://apod.nasa.gov/apod/ap041101.html">"Spooky Star Forming Region DR 6"</a>. <i><a href="/wiki/Astronomy_Picture_of_the_Day" title="Astronomy Picture of the Day">Astronomy Picture of the Day</a></i>. <a href="/wiki/NASA" title="NASA">NASA</a><span class="reference-accessdate">. Retrieved <span class="nowrap">23 October</span> 2008</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Astronomy+Picture+of+the+Day&rft.atitle=Spooky+Star+Forming+Region+DR+6&rft.date=2004-11-01&rft_id=https%3A%2F%2Fapod.nasa.gov%2Fapod%2Fap041101.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-68"><span class="mw-cite-backlink"><b><a href="#cite_ref-68">^</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://web.mit.edu/physics/news/physicsatmit/physicsatmit_09_windsofchange_monroebattat.pdf">"Winds of Change"</a> <span class="cs1-format">(PDF)</span>. <i><a href="/wiki/Massachusetts_Institute_of_Technology" title="Massachusetts Institute of Technology">MIT</a></i>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20130404180757/http://web.mit.edu/physics/news/physicsatmit/physicsatmit_09_windsofchange_monroebattat.pdf">Archived</a> <span class="cs1-format">(PDF)</span> from the original on 4 April 2013<span class="reference-accessdate">. Retrieved <span class="nowrap">31 January</span> 2020</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=MIT&rft.atitle=Winds+of+Change&rft_id=http%3A%2F%2Fweb.mit.edu%2Fphysics%2Fnews%2Fphysicsatmit%2Fphysicsatmit_09_windsofchange_monroebattat.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> <li id="cite_note-69"><span class="mw-cite-backlink"><b><a href="#cite_ref-69">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBillardMayetGrignonSantos2011" class="citation journal cs1">Billard, J.; Mayet, F.; Grignon, C.; Santos, D. (2011). "Directional detection of Dark Matter with MIMAC: WIMP identification and track reconstruction". <i>Journal of Physics: Conference Series</i>. <b>309</b> (1): 012015. <a href="/wiki/ArXiv_(identifier)" class="mw-redirect" title="ArXiv (identifier)">arXiv</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://arxiv.org/abs/1101.2750">1101.2750</a></span>. <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/2011JPhCS.309a2015B">2011JPhCS.309a2015B</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1088%2F1742-6596%2F309%2F1%2F012015">10.1088/1742-6596/309/1/012015</a>. <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:85554552">85554552</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Journal+of+Physics%3A+Conference+Series&rft.atitle=Directional+detection+of+Dark+Matter+with+MIMAC%3A+WIMP+identification+and+track+reconstruction&rft.volume=309&rft.issue=1&rft.pages=012015&rft.date=2011&rft_id=info%3Aarxiv%2F1101.2750&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A85554552%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1088%2F1742-6596%2F309%2F1%2F012015&rft_id=info%3Abibcode%2F2011JPhCS.309a2015B&rft.aulast=Billard&rft.aufirst=J.&rft.au=Mayet%2C+F.&rft.au=Grignon%2C+C.&rft.au=Santos%2C+D.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Bibliography">Bibliography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cygnus_(constellation)&action=edit&section=14" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAllen1963" class="citation book cs1"><a href="/wiki/Richard_Hinckley_Allen" class="mw-redirect" title="Richard Hinckley Allen">Allen, R. H.</a> (1963). <a href="/wiki/Star_Names:_Their_Lore_and_Meaning" class="mw-redirect" title="Star Names: Their Lore and Meaning"><i>Star Names: Their Lore and Meaning</i></a> (Reprint ed.). New York, NY: Dover Publications Inc. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-486-21079-7" title="Special:BookSources/978-0-486-21079-7"><bdi>978-0-486-21079-7</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Star+Names%3A+Their+Lore+and+Meaning&rft.place=New+York%2C+NY&rft.edition=Reprint&rft.pub=Dover+Publications+Inc.&rft.date=1963&rft.isbn=978-0-486-21079-7&rft.aulast=Allen&rft.aufirst=R.+H.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLevy2005" class="citation book cs1">Levy, David H. (2005). <a rel="nofollow" class="external text" href="https://archive.org/details/deepskyobjects00davi"><i>Deep Sky Objects</i></a>. Prometheus Books. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-59102-361-6" title="Special:BookSources/978-1-59102-361-6"><bdi>978-1-59102-361-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Deep+Sky+Objects&rft.pub=Prometheus+Books&rft.date=2005&rft.isbn=978-1-59102-361-6&rft.aulast=Levy&rft.aufirst=David+H.&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fdeepskyobjects00davi&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMakemson1941" class="citation book cs1">Makemson, Maud Worcester (1941). <i>The Morning Star Rises: an account of Polynesian astronomy</i>. Yale University Press. <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/1941msra.book.....M">1941msra.book.....M</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Morning+Star+Rises%3A+an+account+of+Polynesian+astronomy&rft.pub=Yale+University+Press&rft.date=1941&rft_id=info%3Abibcode%2F1941msra.book.....M&rft.aulast=Makemson&rft.aufirst=Maud+Worcester&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRidpathTirion2001" class="citation cs2">Ridpath, Ian; Tirion, Wil (2001), <i>Stars and Planets Guide</i>, Princeton University Press, <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-691-08913-3" title="Special:BookSources/978-0-691-08913-3"><bdi>978-0-691-08913-3</bdi></a></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Stars+and+Planets+Guide&rft.pub=Princeton+University+Press&rft.date=2001&rft.isbn=978-0-691-08913-3&rft.aulast=Ridpath&rft.aufirst=Ian&rft.au=Tirion%2C+Wil&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACygnus+%28constellation%29" class="Z3988"></span></li> <li><a href="/wiki/Ian_Ridpath" title="Ian Ridpath">Ian Ridpath</a> and <a href="/wiki/Wil_Tirion" title="Wil Tirion">Wil Tirion</a> (2007). <i>Stars and Planets Guide</i>, Collins, London. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-00-725120-9" title="Special:BookSources/978-0-00-725120-9">978-0-00-725120-9</a>. Princeton University Press, Princeton. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-691-13556-4" title="Special:BookSources/978-0-691-13556-4">978-0-691-13556-4</a>.</li></ul> <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=Cygnus_(constellation)&action=edit&section=15" 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 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.navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Cygnus_(constellation)" title="Template:Cygnus (constellation)"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Cygnus_(constellation)" title="Template talk:Cygnus (constellation)"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Cygnus_(constellation)" title="Special:EditPage/Template:Cygnus (constellation)"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Constellation_of_Cygnus" style="font-size:114%;margin:0 4em"><a class="mw-selflink selflink">Constellation of Cygnus</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: center;"><div> <ul><li><a href="/wiki/List_of_stars_in_Cygnus" title="List of stars in Cygnus">List of stars in Cygnus</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Star" title="Star">Stars</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Bayer_designation" title="Bayer designation">Bayer</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Deneb" title="Deneb">α (Deneb)</a></li> <li><a href="/wiki/Albireo" title="Albireo">β (Albireo)</a></li> <li><a href="/wiki/Gamma_Cygni" title="Gamma Cygni">γ (Sadr)</a></li> <li><a href="/wiki/Delta_Cygni" title="Delta Cygni">δ (Fawaris)</a></li> <li><a href="/wiki/Epsilon_Cygni" title="Epsilon Cygni">ε (Aljanah)</a></li> <li><a href="/wiki/Zeta_Cygni" title="Zeta Cygni">ζ</a></li> <li><a href="/wiki/Eta_Cygni" title="Eta Cygni">η</a></li> <li><a href="/wiki/Theta_Cygni" title="Theta Cygni">θ</a></li> <li><a href="/wiki/Iota1_Cygni" title="Iota1 Cygni">ι<sup>1</sup></a></li> <li><a href="/wiki/Iota2_Cygni" title="Iota2 Cygni">ι<sup>2</sup></a></li> <li><a href="/wiki/Kappa_Cygni" title="Kappa Cygni">κ</a></li> <li><a href="/wiki/Lambda_Cygni" title="Lambda Cygni">λ</a></li> <li><a href="/wiki/Mu_Cygni" title="Mu Cygni">μ</a></li> <li><a href="/wiki/Nu_Cygni" title="Nu Cygni">ν</a></li> <li><a href="/wiki/Xi_Cygni" title="Xi Cygni">ξ</a></li> <li><a href="/wiki/30_Cygni" title="30 Cygni">o<sup>1</sup></a></li> <li><a href="/wiki/31_Cygni" title="31 Cygni">o<sup>2</sup></a></li> <li><a href="/wiki/32_Cygni" title="32 Cygni">ο<sup>3</sup></a></li> <li><a href="/wiki/Pi1_Cygni" title="Pi1 Cygni">π<sup>1</sup> (Azelfafage)</a></li> <li><a href="/wiki/Pi2_Cygni" title="Pi2 Cygni">π<sup>2</sup></a></li> <li><a href="/wiki/Rho_Cygni" title="Rho Cygni">ρ</a></li> <li><a href="/wiki/Sigma_Cygni" title="Sigma Cygni">σ</a></li> <li><a href="/wiki/Tau_Cygni" title="Tau Cygni">τ</a></li> <li><a href="/wiki/Upsilon_Cygni" title="Upsilon Cygni">υ</a></li> <li><a href="/wiki/Phi_Cygni" title="Phi Cygni">φ</a></li> <li><a href="/wiki/Chi_Cygni" title="Chi Cygni">χ</a></li> <li><a href="/wiki/Psi_Cygni" title="Psi Cygni">ψ</a></li> <li><a href="/wiki/Omega1_Cygni" title="Omega1 Cygni">ω<sup>1</sup></a></li> <li><a href="/wiki/Omega2_Cygni" title="Omega2 Cygni">ω<sup>2</sup></a></li> <li><a href="/wiki/P_Cygni" title="P Cygni">P</a></li> <li><a href="/wiki/Q_Cygni" title="Q Cygni">Q</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Flamsteed_designation" title="Flamsteed designation">Flamsteed</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/2_Cygni" title="2 Cygni">2</a></li> <li><a href="/wiki/4_Cygni" title="4 Cygni">4</a></li> <li><a href="/wiki/8_Cygni" title="8 Cygni">8</a></li> <li><a href="/wiki/9_Cygni" title="9 Cygni">9</a></li> <li><a href="/wiki/15_Cygni" title="15 Cygni">15</a></li> <li><a href="/wiki/16_Cygni" title="16 Cygni">16 (c)</a></li> <li><a href="/wiki/17_Cygni" title="17 Cygni">17</a></li> <li><a href="/wiki/20_Cygni" title="20 Cygni">20 (d)</a></li> <li><a href="/wiki/22_Cygni" title="22 Cygni">22</a></li> <li><a href="/wiki/23_Cygni" title="23 Cygni">23</a></li> <li><a href="/wiki/26_Cygni" title="26 Cygni">26 (e)</a></li> <li><a href="/wiki/27_Cygni" title="27 Cygni">27 (b<sup>1</sup>)</a></li> <li><a href="/wiki/28_Cygni" title="28 Cygni">28 (b<sup>2</sup>)</a></li> <li><a href="/wiki/29_Cygni" title="29 Cygni">29 (b<sup>3</sup>)</a></li> <li><a href="/wiki/33_Cygni" title="33 Cygni">33</a></li> <li><a href="/wiki/35_Cygni" title="35 Cygni">35</a></li> <li><a href="/wiki/39_Cygni" title="39 Cygni">39</a></li> <li><a href="/wiki/41_Cygni" title="41 Cygni">41</a></li> <li><a href="/wiki/47_Cygni" title="47 Cygni">47</a></li> <li><a href="/wiki/52_Cygni" title="52 Cygni">52</a></li> <li><a href="/wiki/55_Cygni" title="55 Cygni">55</a></li> <li><a href="/wiki/56_Cygni" title="56 Cygni">56</a></li> <li><a href="/wiki/57_Cygni" title="57 Cygni">57</a></li> <li><a href="/wiki/59_Cygni" title="59 Cygni">59 (f<sup>1</sup>)</a></li> <li><a href="/wiki/61_Cygni" title="61 Cygni">61</a></li> <li><a href="/wiki/63_Cygni" title="63 Cygni">63 (f<sup>2</sup>)</a></li> <li><a href="/wiki/68_Cygni" title="68 Cygni">68 (A)</a></li> <li><a href="/wiki/71_Cygni" title="71 Cygni">71 (g)</a></li> <li><a href="/wiki/72_Cygni" title="72 Cygni">72</a></li> <li><a href="/wiki/74_Cygni" title="74 Cygni">74</a></li> <li><a href="/wiki/75_Cygni" title="75 Cygni">75</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Variable_star_designation" class="mw-redirect" title="Variable star designation">Variable</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/R_Cygni" title="R Cygni">R</a></li> <li><a href="/wiki/T_Cygni" title="T Cygni">T</a></li> <li><a href="/wiki/W_Cygni" title="W Cygni">W</a></li> <li><a href="/wiki/X_Cygni" title="X Cygni">X</a></li> <li><a href="/wiki/Y_Cygni" title="Y Cygni">Y</a></li> <li><a href="/wiki/RW_Cygni" title="RW Cygni">RW</a></li> <li><a href="/wiki/SS_Cygni" title="SS Cygni">SS</a></li> <li><a href="/wiki/SU_Cygni" title="SU Cygni">SU</a></li> <li><a href="/wiki/TT_Cygni" title="TT Cygni">TT</a></li> <li><a href="/wiki/AZ_Cygni" title="AZ Cygni">AZ</a></li> <li><a href="/wiki/BC_Cygni" title="BC Cygni">BC</a></li> <li><a href="/wiki/BI_Cygni" title="BI Cygni">BI</a></li> <li><a href="/wiki/CH_Cygni" title="CH Cygni">CH</a></li> <li><a href="/wiki/KY_Cygni" title="KY Cygni">KY</a></li> <li><a href="/wiki/V380_Cygni" title="V380 Cygni">V380</a></li> <li><a href="/wiki/V389_Cygni" title="V389 Cygni">V389</a></li> <li><a href="/wiki/V404_Cygni" title="V404 Cygni">V404</a></li> <li><a href="/wiki/V476_Cygni" title="V476 Cygni">V476</a></li> <li><a href="/wiki/V1027_Cygni" title="V1027 Cygni">V1027</a></li> <li><a href="/wiki/V1057_Cygni" title="V1057 Cygni">V1057</a></li> <li><a href="/wiki/HR_7484" title="HR 7484">V1143</a></li> <li><a href="/wiki/V1191_Cygni" title="V1191 Cygni">V1191</a></li> <li><a href="/wiki/V1334_Cygni" title="V1334 Cygni">V1334</a></li> <li><a href="/wiki/NML_Cygni" title="NML Cygni">V1489</a></li> <li><a href="/wiki/V1500_Cygni" title="V1500 Cygni">V1500</a></li> <li><a href="/wiki/V1668_Cygni" title="V1668 Cygni">V1668</a></li> <li><a href="/wiki/V1794_Cygni" title="V1794 Cygni">V1794</a></li> <li><a href="/wiki/V1974_Cygni" title="V1974 Cygni">V1974</a></li> <li><a href="/wiki/KPD_1930%2B2752" title="KPD 1930+2752">V2214</a></li> <li><a href="/wiki/IRAS_19475%2B3119" title="IRAS 19475+3119">V2513</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Bright_Star_Catalogue" title="Bright Star Catalogue">HR</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_189276" title="HD 189276">7633</a></li> <li><a href="/wiki/HD_193322" title="HD 193322">7767</a></li> <li><a href="/wiki/HD_197036" title="HD 197036">7912</a></li> <li><a href="/wiki/HD_203857" title="HD 203857">8193</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Henry_Draper_Catalogue" title="Henry Draper Catalogue">HD</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_185269" title="HD 185269">185269</a></li> <li>185435</li> <li><a href="/wiki/HD_187123" title="HD 187123">187123</a></li> <li><a href="/wiki/HD_188753" title="HD 188753">188753</a></li> <li><a href="/wiki/HD_190655" title="HD 190655">190655</a></li> <li><a href="/wiki/HD_191806" title="HD 191806">191806</a></li> <li><a href="/wiki/HD_197037" title="HD 197037">197037</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Gliese_Catalogue_of_Nearby_Stars" title="Gliese Catalogue of Nearby Stars">Gliese</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gliese_777" title="Gliese 777">777</a></li> <li><a href="/wiki/Gliese_806" title="Gliese 806">806</a></li> <li><a href="/wiki/GJ_1245" title="GJ 1245">1245</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/List_of_exoplanets_discovered_using_the_Kepler_space_telescope" class="mw-redirect" title="List of exoplanets discovered using the Kepler space telescope">Kepler</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HAT-P-7" title="HAT-P-7">2</a></li> <li><a href="/wiki/HAT-P-11" title="HAT-P-11">3</a></li> <li><a href="/wiki/Kepler-5" title="Kepler-5">5</a></li> <li><a href="/wiki/Kepler-6" title="Kepler-6">6</a></li> <li><a href="/wiki/Kepler-11" title="Kepler-11">11</a></li> <li><a href="/wiki/Kepler-15" title="Kepler-15">15</a></li> <li><a href="/wiki/Kepler-16" title="Kepler-16">16</a></li> <li><a href="/wiki/Kepler-17" title="Kepler-17">17</a></li> <li><a href="/wiki/Kepler-18" title="Kepler-18">18</a></li> <li><a href="/wiki/Kepler-22" title="Kepler-22">22</a></li> <li><a href="/wiki/Kepler-23" title="Kepler-23">23</a></li> <li><a href="/wiki/Kepler-27" title="Kepler-27">27</a></li> <li><a href="/wiki/Kepler-28" title="Kepler-28">28</a></li> <li><a href="/wiki/Kepler-29" title="Kepler-29">29</a></li> <li><a href="/wiki/Kepler-31" title="Kepler-31">31</a></li> <li><a href="/wiki/Kepler-32" title="Kepler-32">32</a></li> <li><a href="/wiki/Kepler-33" title="Kepler-33">33</a></li> <li><a href="/wiki/Kepler-34" title="Kepler-34">34</a></li> <li><a href="/wiki/Kepler-35" title="Kepler-35">35</a></li> <li><a href="/wiki/Kepler-36" title="Kepler-36">36</a></li> <li><a href="/wiki/Kepler-39" title="Kepler-39">39</a></li> <li><a href="/wiki/Kepler-40" title="Kepler-40">40</a></li> <li><a href="/wiki/Kepler-41" title="Kepler-41">41</a></li> <li><a href="/wiki/Kepler-42" title="Kepler-42">42</a></li> <li><a href="/wiki/Kepler-43" title="Kepler-43">43</a></li> <li><a href="/wiki/Kepler-44" title="Kepler-44">44</a></li> <li><a href="/wiki/Kepler-45" title="Kepler-45">45</a></li> <li><a href="/wiki/Kepler-47" title="Kepler-47">47</a></li> <li><a href="/wiki/Kepler-51" title="Kepler-51">51</a></li> <li><a href="/wiki/Kepler-56" title="Kepler-56">56</a></li> <li><a href="/wiki/Kepler-61" title="Kepler-61">61</a></li> <li><a href="/wiki/Kepler-63" title="Kepler-63">63</a></li> <li><a href="/wiki/PH1" class="mw-redirect" title="PH1">64 (PH1)</a></li> <li><a href="/wiki/Kepler-66" title="Kepler-66">66</a></li> <li><a href="/wiki/Kepler-67" title="Kepler-67">67</a></li> <li><a href="/wiki/Kepler-68" title="Kepler-68">68</a></li> <li><a href="/wiki/Kepler-69" title="Kepler-69">69</a></li> <li><a href="/wiki/Kepler-70" title="Kepler-70">70</a></li> <li><a href="/wiki/Kepler-78" title="Kepler-78">78</a></li> <li><a href="/wiki/Kepler-80" title="Kepler-80">80</a></li> <li><a href="/wiki/Kepler-84" title="Kepler-84">84</a></li> <li><a href="/wiki/PH2" title="PH2">86 (PH2)</a></li> <li><a href="/wiki/Kepler-87" title="Kepler-87">87</a></li> <li><a href="/wiki/Kepler-89" title="Kepler-89">89</a></li> <li><a href="/wiki/Kepler-107" title="Kepler-107">107</a></li> <li><a href="/wiki/Kepler-167" title="Kepler-167">167</a></li> <li><a href="/wiki/Kepler-182" title="Kepler-182">182</a></li> <li><a href="/wiki/Kepler-186" title="Kepler-186">186</a></li> <li><a href="/wiki/Kepler-223" title="Kepler-223">223</a></li> <li><a href="/wiki/Kepler-289" title="Kepler-289">289</a></li> <li><a href="/wiki/Kepler-371" title="Kepler-371">371</a></li> <li><a href="/wiki/Kepler-385" title="Kepler-385">385</a></li> <li><a href="/wiki/Kepler-411" title="Kepler-411">411</a></li> <li><a href="/wiki/Kepler-419" title="Kepler-419">419</a></li> <li><a href="/wiki/Kepler-432" title="Kepler-432">432</a></li> <li><a href="/wiki/Kepler-445" title="Kepler-445">445</a></li> <li><a href="/wiki/2MASS_J19383260%2B4603591" class="mw-redirect" title="2MASS J19383260+4603591">451</a></li> <li><a href="/wiki/Kepler-452" title="Kepler-452">452</a></li> <li><a href="/wiki/Kepler-560" class="mw-redirect" title="Kepler-560">560</a></li> <li><a href="/wiki/Kepler-737" title="Kepler-737">737</a></li> <li><a href="/wiki/Kepler-1229" title="Kepler-1229">1229</a></li> <li><a href="/wiki/Kepler-1520" title="Kepler-1520">1520</a></li> <li><a href="/wiki/Kepler-1625" title="Kepler-1625">1625</a></li> <li><a href="/wiki/Kepler-1649" title="Kepler-1649">1649</a></li> <li><a href="/wiki/Kepler-1708" class="mw-redirect" title="Kepler-1708">1708</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Wolf-Rayet_star" class="mw-redirect" title="Wolf-Rayet star">WR</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/WR_133" title="WR 133">133</a></li> <li><a href="/wiki/WR_134" title="WR 134">134</a></li> <li><a href="/wiki/WR_135" title="WR 135">135</a></li> <li><a href="/wiki/WR_136" title="WR 136">136</a></li> <li><a href="/wiki/WR_137" title="WR 137">137</a></li> <li><a href="/wiki/WR_138a" title="WR 138a">138a</a></li> <li><a href="/wiki/WR_140" title="WR 140">140</a></li> <li><a href="/wiki/WR_142" title="WR 142">142</a></li> <li><a href="/wiki/WR_147" title="WR 147">147</a></li> <li><a href="/wiki/WR_148" title="WR 148">148</a></li> <li><a href="/wiki/WR_150" title="WR 150">150</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AFGL_2591" title="AFGL 2591">AFGL 2591</a></li> <li><a href="/wiki/BD%2B40%C2%B0_4210" class="mw-redirect" title="BD+40° 4210">BD+40° 4210</a></li> <li><a href="/wiki/BD%2B43_3654" title="BD+43 3654">BD+43 3654</a></li> <li><a href="/wiki/Cygnus_OB2-8A" title="Cygnus OB2-8A">Cygnus OB2 #8A</a></li> <li><a href="/wiki/Cygnus_OB2-12" title="Cygnus OB2-12">Cygnus OB2 #12</a></li> <li><a href="/wiki/Cygnus_X-1" title="Cygnus X-1">Cygnus X-1</a></li> <li><a href="/wiki/Cygnus_X-3" title="Cygnus X-3">Cygnus X-3</a></li> <li><a href="/wiki/G79.29%2B0.46" title="G79.29+0.46">G79.29+0.46</a></li> <li><a href="/wiki/G_208-44/208-45" class="mw-redirect" title="G 208-44/208-45">G 208-44</a></li> <li><a href="/wiki/G_208-44/208-45" class="mw-redirect" title="G 208-44/208-45">G 208-45</a></li> <li><a href="/wiki/GSC_03949-00967" title="GSC 03949-00967">GSC 03949-00967</a></li> <li><a href="/wiki/HAT-P-17" title="HAT-P-17">HAT-P-17</a></li> <li><a href="/wiki/KELT-9b#Host_star" title="KELT-9b">KELT-9</a></li> <li><a href="/wiki/KELT-20" title="KELT-20">KELT-20</a></li> <li><a href="/wiki/Tabby%27s_Star" title="Tabby's Star">KIC 8462852</a></li> <li><a href="/wiki/KIC_9832227" title="KIC 9832227">KIC 9832227</a></li> <li><a href="/wiki/KIC_9970396" title="KIC 9970396">KIC 9970396</a></li> <li><a href="/wiki/KIC_11026764" class="mw-redirect" title="KIC 11026764">KIC 11026764</a></li> <li><a href="/wiki/KIC_11145123" title="KIC 11145123">KIC 11145123</a></li> <li><a href="/wiki/KOI-5" title="KOI-5">KOI-5</a></li> <li><a href="/wiki/KOI-74" title="KOI-74">KOI-74</a></li> <li><a href="/wiki/KOI-81" title="KOI-81">KOI-81</a></li> <li><a href="/wiki/KOI-256" title="KOI-256">KOI-256</a></li> <li><a href="/wiki/MWC_349" title="MWC 349">MWC 349</a></li> <li><a href="/wiki/N6946-BH1" title="N6946-BH1">N6946-BH1</a></li> <li><a href="/wiki/PSR_J2032%2B4127" title="PSR J2032+4127">PSR J2032+4127</a></li> <li><a href="/wiki/SPECULOOS-3" title="SPECULOOS-3">SPECULOOS-3</a></li> <li><a href="/wiki/W75N(B)-VLA2" title="W75N(B)-VLA2">W75N(B)-VLA2</a></li> <li><a href="/wiki/WASP-48" title="WASP-48">WASP-48</a></li> <li><a href="/wiki/WISE_J2000%2B3629" title="WISE J2000+3629">WISE J2000+3629</a></li> <li><a href="/wiki/Wolf_1069" title="Wolf 1069">Wolf 1069</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Star_cluster" title="Star cluster">Star<br />clusters</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Stellar_association" title="Stellar association">Association</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cygnus_OB2" title="Cygnus OB2">Cygnus OB2</a></li> <li><a href="/wiki/Cygnus_OB7" title="Cygnus OB7">Cygnus OB7</a></li> <li><a href="/wiki/Cygnus_OB9" title="Cygnus OB9">Cygnus OB9</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Open_cluster" title="Open cluster">Open</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Berkeley_86" title="Berkeley 86">Berkeley 86</a></li> <li><a href="/wiki/DR_6" title="DR 6">DR 6</a></li> <li><a href="/wiki/IC_5146" title="IC 5146">IC 5146</a></li> <li><a href="/wiki/Messier_29" title="Messier 29">Messier 29</a></li> <li><a href="/wiki/Messier_39" title="Messier 39">Messier 39</a></li> <li><a href="/wiki/NGC_6811" title="NGC 6811">NGC 6811</a></li> <li><a href="/wiki/NGC_6819" title="NGC 6819">NGC 6819</a></li> <li><a href="/wiki/NGC_6834" title="NGC 6834">NGC 6834</a></li> <li><a href="/wiki/NGC_6866" title="NGC 6866">NGC 6866</a></li> <li><a href="/wiki/NGC_6871" title="NGC 6871">NGC 6871</a></li> <li><a href="/wiki/NGC_6910" title="NGC 6910">NGC 6910</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Molecular_cloud" title="Molecular cloud">Molecular<br />clouds</a></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/Cygnus_X_(star_complex)" title="Cygnus X (star complex)">Cygnus X</a> <small>(including <a href="/wiki/DR_21" title="DR 21">DR 21</a>)</small></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Nebula" title="Nebula">Nebulae</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Dark_nebula" title="Dark nebula">Dark</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Barnard_146" class="mw-redirect" title="Barnard 146">Barnard 146</a></li> <li><a href="/wiki/Barnard_147" title="Barnard 147">Barnard 147</a></li> <li><a href="/wiki/IC_5146" title="IC 5146">IC 5146</a></li> <li><a href="/wiki/L1014" title="L1014">L1014</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/H_II_region" title="H II region">H II</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NGC_6914" title="NGC 6914">NGC 6914</a></li> <li><a href="/wiki/North_America_Nebula" title="North America Nebula">North America Nebula</a></li> <li><a href="/wiki/Pelican_Nebula" title="Pelican Nebula">Pelican Nebula</a></li> <li><a href="/wiki/Sadr_Region" title="Sadr Region">Sadr Region</a></li> <li><a href="/wiki/Sh2-101" class="mw-redirect" title="Sh2-101">Sh2-101</a></li> <li><a href="/wiki/Sh2-106" class="mw-redirect" title="Sh2-106">Sh2-106</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Planetary_nebula" title="Planetary nebula">Planetary</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abell_78" title="Abell 78">Abell 78</a></li> <li><a href="/wiki/Egg_Nebula" title="Egg Nebula">Egg Nebula</a></li> <li><a href="/wiki/IRAS_19475%2B3119" title="IRAS 19475+3119">IRAS 19475+3119</a></li> <li><a href="/wiki/IRAS_20324%2B4057" title="IRAS 20324+4057">IRAS 20324+4057</a></li> <li><a href="/wiki/Kronberger_61" title="Kronberger 61">Kronberger 61</a></li> <li><a href="/wiki/M1-92" title="M1-92">M1-92</a></li> <li><a href="/wiki/NGC_6826" title="NGC 6826">NGC 6826</a></li> <li><a href="/wiki/NGC_6881" title="NGC 6881">NGC 6881</a></li> <li><a href="/wiki/NGC_6884" title="NGC 6884">NGC 6884</a></li> <li><a href="/wiki/NGC_7008" title="NGC 7008">NGC 7008</a></li> <li><a href="/wiki/NGC_7026" title="NGC 7026">NGC 7026</a></li> <li><a href="/wiki/NGC_7027" title="NGC 7027">NGC 7027</a></li> <li><a href="/wiki/NGC_7048" title="NGC 7048">NGC 7048</a></li> <li><a href="/wiki/Soap_Bubble_Nebula" title="Soap Bubble Nebula">Soap Bubble Nebula</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Wolf%E2%80%93Rayet_nebula" title="Wolf–Rayet nebula">WR</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Crescent_Nebula" title="Crescent Nebula">Crescent Nebula</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/Supernova_remnant" title="Supernova remnant">SNR</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cygnus_Loop" title="Cygnus Loop">Cygnus Loop</a> <small>(including <a href="/wiki/Veil_Nebula" title="Veil Nebula">Veil Nebula</a>)</small></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Galaxy" title="Galaxy">Galaxies</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/New_General_Catalogue" title="New General Catalogue">NGC</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NGC_6801" title="NGC 6801">6801</a></li> <li><a href="/wiki/NGC_6946" title="NGC 6946">6946</a></li> <li><a href="/wiki/NGC_7013" title="NGC 7013">7013</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3C_438" title="3C 438">3C 438</a></li> <li><a href="/wiki/4C_%2B48.48" title="4C +48.48">4C +48.48</a></li> <li><a href="/wiki/Cygnus_A" title="Cygnus A">Cygnus A</a></li> <li><a href="/wiki/ZTF_J203349.8%2B322901.1" class="mw-redirect" title="ZTF J203349.8+322901.1">ZTF J203349.8+322901.1</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Exoplanet" title="Exoplanet">Exoplanets</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:6em"><a href="/wiki/List_of_exoplanets_discovered_by_the_Kepler_space_telescope" title="List of exoplanets discovered by the Kepler space telescope">Kepler</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HAT-P-7b" title="HAT-P-7b">2b</a></li> <li><a href="/wiki/HAT-P-11b" title="HAT-P-11b">3b</a></li> <li><a href="/wiki/HAT-P-11c" class="mw-redirect" title="HAT-P-11c">3c</a></li> <li><a href="/wiki/Kepler-5b" title="Kepler-5b">5b</a></li> <li><a href="/wiki/Kepler-6b" title="Kepler-6b">6b</a></li> <li><a href="/wiki/Kepler-11b" title="Kepler-11b">11b</a></li> <li><a href="/wiki/Kepler-15b" title="Kepler-15b">15b</a></li> <li><a href="/wiki/Kepler-16b" title="Kepler-16b">16b</a></li> <li><a href="/wiki/Kepler-17b" title="Kepler-17b">17b</a></li> <li><a href="/wiki/Kepler-22b" title="Kepler-22b">22b</a></li> <li><a href="/wiki/Kepler-23b" title="Kepler-23b">23b</a></li> <li><a href="/wiki/Kepler-28b" title="Kepler-28b">28b</a></li> <li><a href="/wiki/Kepler-32b" title="Kepler-32b">32b</a></li> <li><a href="/wiki/Kepler-33b" title="Kepler-33b">33b</a></li> <li><a href="/wiki/Kepler-34b" title="Kepler-34b">34b</a></li> <li><a href="/wiki/Kepler-36b" title="Kepler-36b">36b</a></li> <li><a href="/wiki/Kepler-39b" title="Kepler-39b">39b</a></li> <li><a href="/wiki/Kepler-40b" title="Kepler-40b">40b</a></li> <li><a href="/wiki/Kepler-41b" title="Kepler-41b">41b</a></li> <li><a href="/wiki/Kepler-47b" title="Kepler-47b">47b</a></li> <li><a href="/wiki/Kepler-56b" title="Kepler-56b">56b</a></li> <li><a href="/wiki/Kepler-61b" title="Kepler-61b">61b</a></li> <li><a href="/wiki/PH1b" title="PH1b">64b (PH1b)</a></li> <li><a href="/wiki/Kepler-68b" title="Kepler-68b">68b</a></li> <li><a href="/wiki/Kepler-69b" title="Kepler-69b">69b</a></li> <li><a href="/wiki/Kepler-70b" class="mw-redirect" title="Kepler-70b">70b</a></li> <li><a href="/wiki/Kepler-78b" title="Kepler-78b">78b</a></li> <li><a href="/wiki/Kepler-87c" title="Kepler-87c">87c</a></li> <li><a href="/wiki/Kepler-186b" title="Kepler-186b">186b</a></li> <li><a href="/wiki/Kepler-186e" title="Kepler-186e">e</a></li> <li><a href="/wiki/Kepler-186f" title="Kepler-186f">f</a></li> <li><a href="/wiki/Kepler-371b" title="Kepler-371b">371b</a></li> <li><a href="/wiki/Kepler-371c" title="Kepler-371c">c</a></li> <li><a href="/wiki/Kepler-409b" title="Kepler-409b">409b</a></li> <li><a href="/wiki/Kepler-419b" title="Kepler-419b">419b</a></li> <li><a href="/wiki/Kepler-432b" title="Kepler-432b">432b</a></li> <li><a href="/wiki/Kepler-451b" class="mw-redirect" title="Kepler-451b">451b</a></li> <li><a href="/wiki/Kepler-452b" title="Kepler-452b">452b</a></li> <li><a href="/wiki/Kepler-560b" title="Kepler-560b">560b</a></li> <li><a href="/wiki/Kepler-737b" title="Kepler-737b">737b</a></li> <li><a href="/wiki/Kepler-1229b" title="Kepler-1229b">1229b</a></li> <li><a href="/wiki/Kepler-1520b" title="Kepler-1520b">1520b</a></li> <li><a href="/wiki/Kepler-1625b" title="Kepler-1625b">1625b</a></li> <li><a href="/wiki/Kepler-1652b" title="Kepler-1652b">1652b</a></li> <li><a href="/wiki/Kepler-1658b" title="Kepler-1658b">1658b</a></li> <li><a href="/wiki/Kepler-1649b" title="Kepler-1649b">1649b</a></li> <li><a href="/wiki/Kepler-1649c" title="Kepler-1649c">c</a></li> <li><a href="/wiki/Kepler-1708b" title="Kepler-1708b">1708b</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6em">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HIP_99770_b" title="HIP 99770 b">b<sup>3</sup> Cygni b</a></li> <li><a href="/wiki/HD_185269_b" title="HD 185269 b">HD 185269 b</a></li> <li><a href="/wiki/HD_187123_b" title="HD 187123 b">HD 187123 b</a></li> <li><a href="/wiki/HD_187123_c" title="HD 187123 c">c</a></li> <li><a href="/wiki/HD_191806_b" title="HD 191806 b">HD 191806 b</a></li> <li><a href="/wiki/KELT-9b" title="KELT-9b">KELT-9b</a></li> <li><a href="/wiki/KELT-20b" title="KELT-20b">KELT-20b</a></li> <li><a href="/wiki/TrES-5b" title="TrES-5b">TrES-5b</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Exomoon" title="Exomoon">Exomoons</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Kepler" scope="row" class="navbox-group" style="width:6em"><a href="/wiki/List_of_exoplanets_discovered_by_the_Kepler_space_telescope" title="List of exoplanets discovered by the Kepler space telescope">Kepler</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Kepler-1625b_I" title="Kepler-1625b I">1625b I</a></li> <li><a href="/wiki/Kepler-1708b_I" class="mw-redirect" title="Kepler-1708b I">1708b I</a></li></ul> </div></td></tr></tbody></table><div></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="The_88_modern_constellations" 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"><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:Constellations/modern" title="Template:Constellations/modern"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Constellations/modern" title="Template talk:Constellations/modern"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Constellations/modern" title="Special:EditPage/Template:Constellations/modern"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="The_88_modern_constellations" style="font-size:114%;margin:0 4em">The <a href="/wiki/IAU_designated_constellations" title="IAU designated constellations">88 modern constellations</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/Andromeda_(constellation)" title="Andromeda (constellation)">Andromeda</a></li> <li><a href="/wiki/Antlia" title="Antlia">Antlia</a></li> <li><a href="/wiki/Apus" title="Apus">Apus</a></li> <li><a href="/wiki/Aquarius_(constellation)" title="Aquarius (constellation)">Aquarius</a></li> <li><a href="/wiki/Aquila_(constellation)" title="Aquila (constellation)">Aquila</a></li> <li><a href="/wiki/Ara_(constellation)" title="Ara (constellation)">Ara</a></li> <li><a href="/wiki/Aries_(constellation)" title="Aries (constellation)">Aries</a></li> <li><a href="/wiki/Auriga" title="Auriga">Auriga</a></li> <li><a href="/wiki/Bo%C3%B6tes" title="Boötes">Boötes</a></li> <li><a href="/wiki/Caelum" title="Caelum">Caelum</a></li> <li><a href="/wiki/Camelopardalis" title="Camelopardalis">Camelopardalis</a></li> <li><a href="/wiki/Cancer_(constellation)" title="Cancer (constellation)">Cancer</a></li> <li><a href="/wiki/Canes_Venatici" title="Canes Venatici">Canes Venatici</a></li> <li><a href="/wiki/Canis_Major" title="Canis Major">Canis Major</a></li> <li><a href="/wiki/Canis_Minor" title="Canis Minor">Canis Minor</a></li> <li><a href="/wiki/Capricornus" title="Capricornus">Capricornus</a></li> <li><a href="/wiki/Carina_(constellation)" title="Carina (constellation)">Carina</a></li> <li><a href="/wiki/Cassiopeia_(constellation)" title="Cassiopeia (constellation)">Cassiopeia</a></li> <li><a href="/wiki/Centaurus" title="Centaurus">Centaurus</a></li> <li><a href="/wiki/Cepheus_(constellation)" title="Cepheus (constellation)">Cepheus</a></li> <li><a href="/wiki/Cetus" title="Cetus">Cetus</a></li> <li><a href="/wiki/Chamaeleon" title="Chamaeleon">Chamaeleon</a></li> <li><a href="/wiki/Circinus" title="Circinus">Circinus</a></li> <li><a href="/wiki/Columba_(constellation)" title="Columba (constellation)">Columba</a></li> <li><a href="/wiki/Coma_Berenices" title="Coma Berenices">Coma Berenices</a></li> <li><a href="/wiki/Corona_Australis" title="Corona Australis">Corona Australis</a></li> <li><a href="/wiki/Corona_Borealis" title="Corona Borealis">Corona Borealis</a></li> <li><a href="/wiki/Corvus_(constellation)" title="Corvus (constellation)">Corvus</a></li> <li><a href="/wiki/Crater_(constellation)" title="Crater (constellation)">Crater</a></li> <li><a href="/wiki/Crux" title="Crux">Crux</a></li> <li><a class="mw-selflink selflink">Cygnus</a></li> <li><a href="/wiki/Delphinus" title="Delphinus">Delphinus</a></li> <li><a href="/wiki/Dorado" title="Dorado">Dorado</a></li> <li><a href="/wiki/Draco_(constellation)" title="Draco (constellation)">Draco</a></li> <li><a href="/wiki/Equuleus" title="Equuleus">Equuleus</a></li> <li><a href="/wiki/Eridanus_(constellation)" title="Eridanus (constellation)">Eridanus</a></li> <li><a href="/wiki/Fornax" title="Fornax">Fornax</a></li> <li><a href="/wiki/Gemini_(constellation)" title="Gemini (constellation)">Gemini</a></li> <li><a href="/wiki/Grus_(constellation)" title="Grus (constellation)">Grus</a></li> <li><a href="/wiki/Hercules_(constellation)" title="Hercules (constellation)">Hercules</a></li> <li><a href="/wiki/Horologium_(constellation)" title="Horologium (constellation)">Horologium</a></li> <li><a href="/wiki/Hydra_(constellation)" title="Hydra (constellation)">Hydra</a></li> <li><a href="/wiki/Hydrus" title="Hydrus">Hydrus</a></li> <li><a href="/wiki/Indus_(constellation)" title="Indus (constellation)">Indus</a></li> <li><a href="/wiki/Lacerta" title="Lacerta">Lacerta</a></li> <li><a href="/wiki/Leo_(constellation)" title="Leo (constellation)">Leo</a></li> <li><a href="/wiki/Leo_Minor" title="Leo Minor">Leo Minor</a></li> <li><a href="/wiki/Lepus_(constellation)" title="Lepus (constellation)">Lepus</a></li> <li><a href="/wiki/Libra_(constellation)" title="Libra (constellation)">Libra</a></li> <li><a href="/wiki/Lupus_(constellation)" title="Lupus (constellation)">Lupus</a></li> <li><a href="/wiki/Lynx_(constellation)" title="Lynx (constellation)">Lynx</a></li> <li><a href="/wiki/Lyra" title="Lyra">Lyra</a></li> <li><a href="/wiki/Mensa_(constellation)" title="Mensa (constellation)">Mensa</a></li> <li><a href="/wiki/Microscopium" title="Microscopium">Microscopium</a></li> <li><a href="/wiki/Monoceros" title="Monoceros">Monoceros</a></li> <li><a href="/wiki/Musca" title="Musca">Musca</a></li> <li><a href="/wiki/Norma_(constellation)" title="Norma (constellation)">Norma</a></li> <li><a href="/wiki/Octans" title="Octans">Octans</a></li> <li><a href="/wiki/Ophiuchus" title="Ophiuchus">Ophiuchus</a></li> <li><a href="/wiki/Orion_(constellation)" title="Orion (constellation)">Orion</a></li> <li><a href="/wiki/Pavo_(constellation)" title="Pavo (constellation)">Pavo</a></li> <li><a href="/wiki/Pegasus_(constellation)" title="Pegasus (constellation)">Pegasus</a></li> <li><a href="/wiki/Perseus_(constellation)" title="Perseus (constellation)">Perseus</a></li> <li><a href="/wiki/Phoenix_(constellation)" title="Phoenix (constellation)">Phoenix</a></li> <li><a href="/wiki/Pictor" title="Pictor">Pictor</a></li> <li><a href="/wiki/Pisces_(constellation)" title="Pisces (constellation)">Pisces</a></li> <li><a href="/wiki/Piscis_Austrinus" title="Piscis Austrinus">Piscis Austrinus</a></li> <li><a href="/wiki/Puppis" title="Puppis">Puppis</a></li> <li><a href="/wiki/Pyxis" title="Pyxis">Pyxis</a></li> <li><a href="/wiki/Reticulum" title="Reticulum">Reticulum</a></li> <li><a href="/wiki/Sagitta" title="Sagitta">Sagitta</a></li> <li><a href="/wiki/Sagittarius_(constellation)" title="Sagittarius (constellation)">Sagittarius</a></li> <li><a href="/wiki/Scorpius" title="Scorpius">Scorpius</a></li> <li><a href="/wiki/Sculptor_(constellation)" title="Sculptor (constellation)">Sculptor</a></li> <li><a href="/wiki/Scutum_(constellation)" title="Scutum (constellation)">Scutum</a></li> <li><a href="/wiki/Serpens" title="Serpens">Serpens</a></li> <li><a href="/wiki/Sextans" title="Sextans">Sextans</a></li> <li><a href="/wiki/Taurus_(constellation)" title="Taurus (constellation)">Taurus</a></li> <li><a href="/wiki/Telescopium" title="Telescopium">Telescopium</a></li> <li><a href="/wiki/Triangulum" title="Triangulum">Triangulum</a></li> <li><a href="/wiki/Triangulum_Australe" title="Triangulum Australe">Triangulum Australe</a></li> <li><a href="/wiki/Tucana" title="Tucana">Tucana</a></li> <li><a href="/wiki/Ursa_Major" title="Ursa Major">Ursa Major</a></li> <li><a href="/wiki/Ursa_Minor" title="Ursa Minor">Ursa Minor</a></li> <li><a href="/wiki/Vela_(constellation)" title="Vela (constellation)">Vela</a></li> <li><a href="/wiki/Virgo_(constellation)" title="Virgo (constellation)">Virgo</a></li> <li><a href="/wiki/Volans" title="Volans">Volans</a></li> <li><a href="/wiki/Vulpecula" title="Vulpecula">Vulpecula</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/Lists_of_constellations" title="Lists of constellations">Lists of constellations</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"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"></div><div role="navigation" class="navbox" aria-labelledby="Constellation_history" 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"><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:Constellations/historic" title="Template:Constellations/historic"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Constellations/historic" title="Template talk:Constellations/historic"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Constellations/historic" title="Special:EditPage/Template:Constellations/historic"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Constellation_history" style="font-size:114%;margin:0 4em">Constellation history</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks hlist mw-collapsible autocollapse navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background: #ddf;"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Constellations/historic/ptolemaic" title="Template:Constellations/historic/ptolemaic"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Constellations/historic/ptolemaic" title="Template talk:Constellations/historic/ptolemaic"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Constellations/historic/ptolemaic" title="Special:EditPage/Template:Constellations/historic/ptolemaic"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="48_constellations_listed_by_Ptolemy_after_150_AD" style="font-size:114%;margin:0 4em">48 constellations listed by <a href="/wiki/Ptolemy" title="Ptolemy">Ptolemy</a> after 150 AD</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/Andromeda_(constellation)" title="Andromeda (constellation)">Andromeda</a></li> <li><a href="/wiki/Aquarius_(constellation)" title="Aquarius (constellation)">Aquarius</a></li> <li><a href="/wiki/Aquila_(constellation)" title="Aquila (constellation)">Aquila</a></li> <li><a href="/wiki/Ara_(constellation)" title="Ara (constellation)">Ara</a></li> <li><a href="/wiki/Argo_Navis" title="Argo Navis">Argo Navis</a></li> <li><a href="/wiki/Aries_(constellation)" title="Aries (constellation)">Aries</a></li> <li><a href="/wiki/Auriga" title="Auriga">Auriga</a></li> <li><a href="/wiki/Bo%C3%B6tes" title="Boötes">Boötes</a></li> <li><a href="/wiki/Cancer_(constellation)" title="Cancer (constellation)">Cancer</a></li> <li><a href="/wiki/Canis_Major" title="Canis Major">Canis Major</a></li> <li><a href="/wiki/Canis_Minor" title="Canis Minor">Canis Minor</a></li> <li><a href="/wiki/Capricornus" title="Capricornus">Capricornus</a></li> <li><a href="/wiki/Cassiopeia_(constellation)" title="Cassiopeia (constellation)">Cassiopeia</a></li> <li><a href="/wiki/Centaurus" title="Centaurus">Centaurus</a></li> <li><a href="/wiki/Cepheus_(constellation)" title="Cepheus (constellation)">Cepheus</a></li> <li><a href="/wiki/Cetus" title="Cetus">Cetus</a></li> <li><a href="/wiki/Corona_Australis" title="Corona Australis">Corona Australis</a></li> <li><a href="/wiki/Corona_Borealis" title="Corona Borealis">Corona Borealis</a></li> <li><a href="/wiki/Corvus_(constellation)" title="Corvus (constellation)">Corvus</a></li> <li><a href="/wiki/Crater_(constellation)" title="Crater (constellation)">Crater</a></li> <li><a class="mw-selflink selflink">Cygnus</a></li> <li><a href="/wiki/Delphinus" title="Delphinus">Delphinus</a></li> <li><a href="/wiki/Draco_(constellation)" title="Draco (constellation)">Draco</a></li> <li><a href="/wiki/Equuleus" title="Equuleus">Equuleus</a></li> <li><a href="/wiki/Eridanus_(constellation)" title="Eridanus (constellation)">Eridanus</a></li> <li><a href="/wiki/Gemini_(constellation)" title="Gemini (constellation)">Gemini</a></li> <li><a href="/wiki/Hercules_(constellation)" title="Hercules (constellation)">Hercules</a></li> <li><a href="/wiki/Hydra_(constellation)" title="Hydra (constellation)">Hydra</a></li> <li><a href="/wiki/Leo_(constellation)" title="Leo (constellation)">Leo</a></li> <li><a href="/wiki/Lepus_(constellation)" title="Lepus (constellation)">Lepus</a></li> <li><a href="/wiki/Libra_(constellation)" title="Libra (constellation)">Libra</a></li> <li><a href="/wiki/Lupus_(constellation)" title="Lupus (constellation)">Lupus</a></li> <li><a href="/wiki/Lyra" title="Lyra">Lyra</a></li> <li><a href="/wiki/Ophiuchus" title="Ophiuchus">Ophiuchus</a></li> <li><a href="/wiki/Orion_(constellation)" title="Orion (constellation)">Orion</a></li> <li><a href="/wiki/Pegasus_(constellation)" title="Pegasus (constellation)">Pegasus</a></li> <li><a href="/wiki/Perseus_(constellation)" title="Perseus (constellation)">Perseus</a></li> <li><a href="/wiki/Pisces_(constellation)" title="Pisces (constellation)">Pisces</a></li> <li><a href="/wiki/Piscis_Austrinus" title="Piscis Austrinus">Piscis Austrinus</a></li> <li><a href="/wiki/Sagitta" title="Sagitta">Sagitta</a></li> <li><a href="/wiki/Sagittarius_(constellation)" title="Sagittarius (constellation)">Sagittarius</a></li> <li><a href="/wiki/Scorpius" title="Scorpius">Scorpius</a></li> <li><a href="/wiki/Serpens" title="Serpens">Serpens</a></li> <li><a href="/wiki/Taurus_(constellation)" title="Taurus (constellation)">Taurus</a></li> <li><a href="/wiki/Triangulum" title="Triangulum">Triangulum</a></li> <li><a href="/wiki/Ursa_Major" title="Ursa Major">Ursa Major</a></li> <li><a href="/wiki/Ursa_Minor" title="Ursa Minor">Ursa Minor</a></li> <li><a href="/wiki/Virgo_(constellation)" title="Virgo (constellation)">Virgo</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="background:#ffe"><div><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:Constellations_listed_by_Ptolemy" title="Category:Constellations listed by Ptolemy">Category</a></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background: #ddf;"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Constellations/historic/modern" title="Template:Constellations/historic/modern"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Constellations/historic/modern" title="Template talk:Constellations/historic/modern"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Constellations/historic/modern" title="Special:EditPage/Template:Constellations/historic/modern"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="The_41_additional_constellations_added_in_the_16th,_17th_and_18th_centuries" style="font-size:114%;margin:0 4em">The 41 additional constellations added in the 16th, 17th and 18th centuries</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><i>Vespucci or Corsalius early 16c</i>: <a href="/wiki/Crux" title="Crux">Crux</a></li> <li><a href="/wiki/Triangulum_Australe" title="Triangulum Australe">Triangulum Australe</a></li> <li><i>Vopel</i> 1536: <a href="/wiki/Coma_Berenices" title="Coma Berenices">Coma Berenices</a></li> <li><i>Keyser & de Houtman</i> 1596: <a href="/wiki/Apus" title="Apus">Apus</a></li> <li><a href="/wiki/Chamaeleon" title="Chamaeleon">Chamaeleon</a></li> <li><a href="/wiki/Dorado" title="Dorado">Dorado</a></li> <li><a href="/wiki/Grus_(constellation)" title="Grus (constellation)">Grus</a></li> <li><a href="/wiki/Hydrus" title="Hydrus">Hydrus</a></li> <li><a href="/wiki/Indus_(constellation)" title="Indus (constellation)">Indus</a></li> <li><a href="/wiki/Musca" title="Musca">Musca</a></li> <li><a href="/wiki/Pavo_(constellation)" title="Pavo (constellation)">Pavo</a></li> <li><a href="/wiki/Phoenix_(constellation)" title="Phoenix (constellation)">Phoenix</a></li> <li><a href="/wiki/Tucana" title="Tucana">Tucana</a></li> <li><a href="/wiki/Volans" title="Volans">Volans</a></li> <li><i>Plancius</i> 1613: <a href="/wiki/Camelopardalis" title="Camelopardalis">Camelopardalis</a></li> <li><a href="/wiki/Columba_(constellation)" title="Columba (constellation)">Columba</a></li> <li><a href="/wiki/Monoceros" title="Monoceros">Monoceros</a></li> <li><i>Habrecht</i> 1621: <a href="/wiki/Reticulum" title="Reticulum">Reticulum</a></li> <li><i>Hevelius</i> 1683: <a href="/wiki/Canes_Venatici" title="Canes Venatici">Canes Venatici</a></li> <li><a href="/wiki/Lacerta" title="Lacerta">Lacerta</a></li> <li><a href="/wiki/Leo_Minor" title="Leo Minor">Leo Minor</a></li> <li><a href="/wiki/Lynx_(constellation)" title="Lynx (constellation)">Lynx</a></li> <li><a href="/wiki/Scutum_(constellation)" title="Scutum (constellation)">Scutum</a></li> <li><a href="/wiki/Sextans" title="Sextans">Sextans</a></li> <li><a href="/wiki/Vulpecula" title="Vulpecula">Vulpecula</a></li> <li><i>de Lacaille</i> 1763: <a href="/wiki/Antlia" title="Antlia">Antlia</a></li> <li><a href="/wiki/Caelum" title="Caelum">Caelum</a></li> <li><a href="/wiki/Carina_(constellation)" title="Carina (constellation)">Carina</a></li> <li><a href="/wiki/Circinus" title="Circinus">Circinus</a></li> <li><a href="/wiki/Fornax" title="Fornax">Fornax</a></li> <li><a href="/wiki/Horologium_(constellation)" title="Horologium (constellation)">Horologium</a></li> <li><a href="/wiki/Mensa_(constellation)" title="Mensa (constellation)">Mensa</a></li> <li><a href="/wiki/Microscopium" title="Microscopium">Microscopium</a></li> <li><a href="/wiki/Norma_(constellation)" title="Norma (constellation)">Norma</a></li> <li><a href="/wiki/Octans" title="Octans">Octans</a></li> <li><a href="/wiki/Pictor" title="Pictor">Pictor</a></li> <li><a href="/wiki/Puppis" title="Puppis">Puppis</a></li> <li><a href="/wiki/Pyxis" title="Pyxis">Pyxis</a></li> <li><a href="/wiki/Sculptor_(constellation)" title="Sculptor (constellation)">Sculptor</a></li> <li><a href="/wiki/Telescopium" title="Telescopium">Telescopium</a></li> <li><a href="/wiki/Vela_(constellation)" title="Vela (constellation)">Vela</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks hlist mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background: #ddf;"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Constellations/historic/obsolete" title="Template:Constellations/historic/obsolete"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Constellations/historic/obsolete" title="Template talk:Constellations/historic/obsolete"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Constellations/historic/obsolete" title="Special:EditPage/Template:Constellations/historic/obsolete"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Obsolete_constellations_(including_Ptolemy&#039;s_Argo_Navis)" style="font-size:114%;margin:0 4em"><a href="/wiki/Former_constellations" title="Former constellations">Obsolete constellations</a> (including Ptolemy's Argo Navis)</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/Anguilla_(constellation)" class="mw-redirect" title="Anguilla (constellation)">Anguilla</a></li> <li><a href="/wiki/Anser_(constellation)" class="mw-redirect" title="Anser (constellation)">Anser</a></li> <li><a href="/wiki/Antinous_(constellation)" title="Antinous (constellation)">Antinous</a></li> <li><a href="/wiki/Apes_(constellation)" class="mw-redirect" title="Apes (constellation)">Apes</a></li> <li><a href="/wiki/Aranea_(constellation)" class="mw-redirect" title="Aranea (constellation)">Aranea</a></li> <li><a href="/wiki/Argo_Navis" title="Argo Navis">Argo Navis</a></li> <li><a href="/wiki/Asterion_(constellation)" class="mw-redirect" title="Asterion (constellation)">Asterion</a></li> <li><a href="/wiki/Bufo_(constellation)" class="mw-redirect" title="Bufo (constellation)">Bufo</a></li> <li><a href="/wiki/Cancer_Minor" title="Cancer Minor">Cancer Minor</a></li> <li><a href="/wiki/Cerberus_(constellation)" title="Cerberus (constellation)">Cerberus</a></li> <li><a href="/wiki/Chara_(constellation)" class="mw-redirect" title="Chara (constellation)">Chara</a></li> <li><a href="/wiki/Custos_Messium" title="Custos Messium">Custos Messium</a></li> <li><a href="/wiki/Felis_(constellation)" title="Felis (constellation)">Felis</a></li> <li><a href="/wiki/Honores_Friderici" title="Honores Friderici">Honores Friderici/Gloria Frederici</a></li> <li><a href="/wiki/Gallus_(constellation)" title="Gallus (constellation)">Gallus</a></li> <li><a href="/wiki/Globus_Aerostaticus" title="Globus Aerostaticus">Globus Aerostaticus</a></li> <li><a href="/wiki/Hippocampus_(constellation)" class="mw-redirect" title="Hippocampus (constellation)">Hippocampus</a></li> <li><a href="/wiki/Hirudo_(constellation)" class="mw-redirect" title="Hirudo (constellation)">Hirudo</a></li> <li><a href="/wiki/Jordanus_(constellation)" title="Jordanus (constellation)">Jordanus</a></li> <li><a href="/wiki/Leo_Palatinus" title="Leo Palatinus">Leo Palatinus</a></li> <li><a href="/wiki/Lilium_(constellation)" class="mw-redirect" title="Lilium (constellation)">Lilium</a></li> <li><a href="/w/index.php?title=Limax_(constellation)&action=edit&redlink=1" class="new" title="Limax (constellation) (page does not exist)">Limax</a></li> <li><a href="/wiki/Lochium_Funis" title="Lochium Funis">Lochium Funis</a></li> <li><a href="/w/index.php?title=Lumbricus_(constellation)&action=edit&redlink=1" class="new" title="Lumbricus (constellation) (page does not exist)">Lumbricus</a></li> <li><a href="/wiki/Machina_Electrica" title="Machina Electrica">Machina Electrica</a></li> <li><a href="/wiki/Malus_(constellation)" title="Malus (constellation)">Malus</a></li> <li><a href="/w/index.php?title=Manis_(constellation)&action=edit&redlink=1" class="new" title="Manis (constellation) (page does not exist)">Manis</a></li> <li><a href="/wiki/Mons_Maenalus" title="Mons Maenalus">Mons Maenalus</a></li> <li><a href="/wiki/Musca_Borealis" title="Musca Borealis">Musca Borealis</a></li> <li><a href="/wiki/Noctua_(constellation)" title="Noctua (constellation)">Noctua</a></li> <li><a href="/wiki/Officina_Typographica" title="Officina Typographica">Officina Typographica</a></li> <li><a href="/w/index.php?title=Patella_(constellation)&action=edit&redlink=1" class="new" title="Patella (constellation) (page does not exist)">Patella</a></li> <li><a href="/w/index.php?title=Phaethon_(constellation)&action=edit&redlink=1" class="new" title="Phaethon (constellation) (page does not exist)">Phaethon</a></li> <li><a href="/wiki/Polophylax" title="Polophylax">Polophylax</a></li> <li><a href="/wiki/Psalterium_Georgii" title="Psalterium Georgii">Psalterium Georgianum/Harpa Georgii</a></li> <li><a href="/wiki/Quadrans_Muralis" title="Quadrans Muralis">Quadrans Muralis</a></li> <li><a href="/wiki/Ramus_Pomifer" title="Ramus Pomifer">Ramus Pomifer</a></li> <li><a href="/wiki/Robur_Carolinum" title="Robur Carolinum">Robur Carolinum</a></li> <li><a href="/w/index.php?title=Rosa_(constellation)&action=edit&redlink=1" class="new" title="Rosa (constellation) (page does not exist)">Rosa</a></li> <li><a href="/w/index.php?title=Scarabaeus_(constellation)&action=edit&redlink=1" class="new" title="Scarabaeus (constellation) (page does not exist)">Scarabaeus</a></li> <li><a href="/wiki/Sceptrum_Brandenburgicum" title="Sceptrum Brandenburgicum">Sceptrum Brandenburgicum</a></li> <li><a href="/wiki/Sceptrum_et_Manus_Iustitiae" title="Sceptrum et Manus Iustitiae">Sceptrum et Manus Iustitiae</a></li> <li><a href="/wiki/Solarium_(constellation)" title="Solarium (constellation)">Solarium</a></li> <li><a href="/wiki/Rangifer_(constellation)" title="Rangifer (constellation)">Tarandus/Rangifer</a></li> <li><a href="/wiki/Taurus_Poniatovii" title="Taurus Poniatovii">Taurus Poniatovii</a></li> <li><a href="/wiki/Telescopium_Herschelii" title="Telescopium Herschelii">Telescopium Herschelii</a></li> <li><a href="/wiki/Pisces_(constellation)#History_and_Mythology" title="Pisces (constellation)">Testudo</a></li> <li><a href="/wiki/River_Tigris_(constellation)" title="River Tigris (constellation)">Tigris</a></li> <li><a href="/wiki/Triangulum_Minus" title="Triangulum Minus">Triangulum Minus</a></li> <li><a href="/wiki/Turdus_Solitarius" title="Turdus Solitarius">Turdus Solitarius</a></li> <li><a href="/wiki/Vespa_(constellation)" class="mw-redirect" title="Vespa (constellation)">Vespa</a></li></ul> </div></td></tr><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0;background: #ddf;"><div style="padding:0 0.25em"> <ul><li><i><b>obsolete constellation names</b></i></li></ul> </div></td></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/Musca#History" title="Musca">Apis</a></li> <li><a href="/wiki/Grus_(constellation)" title="Grus (constellation)">Phoenicopterus</a></li> <li><a href="/wiki/Ophiuchus" title="Ophiuchus">Serpentarius</a></li> <li><a href="/wiki/Dorado" title="Dorado">Xiphias</a></li> <li><a href="/wiki/Lyra" title="Lyra">Vultur cadens</a></li> <li><a href="/wiki/Aquila_(constellation)#History" title="Aquila (constellation)">Vultur volans</a></li></ul> </div></td></tr></tbody></table><div></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/d/d6/RocketSunIcon.svg/19px-RocketSunIcon.svg.png" decoding="async" width="19" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/RocketSunIcon.svg/29px-RocketSunIcon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d6/RocketSunIcon.svg/38px-RocketSunIcon.svg.png 2x" data-file-width="128" data-file-height="128" /></span></span> </span><a href="/wiki/Portal:Spaceflight" title="Portal:Spaceflight">Spaceflight</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><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/Solar_system.jpg/15px-Solar_system.jpg" decoding="async" width="15" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/83/Solar_system.jpg/23px-Solar_system.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/83/Solar_system.jpg/30px-Solar_system.jpg 2x" data-file-width="4500" data-file-height="5600" /></span></span> </span><a href="/wiki/Portal:Solar_System" title="Portal:Solar System">Solar System</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"></div><div role="navigation" class="navbox 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//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></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://d-nb.info/gnd/4148679-1">Germany</a></span></li></ul></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Cygnus_(constellation)&oldid=1256642904">https://en.wikipedia.org/w/index.php?title=Cygnus_(constellation)&oldid=1256642904</a>"</div></div> <div id="catlinks" class="catlinks" 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[\"CITEREFGrimalKershaw1990\"] = 1,\n [\"CITEREFHoney,_W.B.1989\"] = 1,\n [\"CITEREFJim_Kaler\"] = 3,\n [\"CITEREFJim_Kaler2009\"] = 1,\n [\"CITEREFJim_Kaler2012\"] = 1,\n [\"CITEREFKimKimKurayamaHonma2013\"] = 1,\n [\"CITEREFKingRitter1999\"] = 1,\n [\"CITEREFKovácsChengHarko2009\"] = 1,\n [\"CITEREFKördingColbertFalcke2005\"] = 1,\n [\"CITEREFLarry_Sessions2018\"] = 1,\n [\"CITEREFLevy2005\"] = 1,\n [\"CITEREFLissauerFabryckyFordBorucki2011\"] = 1,\n [\"CITEREFLissauerJontof-HutterRoweFabrycky2013\"] = 1,\n [\"CITEREFMacKeownWeekes1985\"] = 1,\n [\"CITEREFMakemson1941\"] = 1,\n [\"CITEREFMarkovade_Groot1997\"] = 1,\n [\"CITEREFMarshakBarteltCourantHeller1985\"] = 1,\n [\"CITEREFMartinezStoneMetzger2019\"] = 1,\n [\"CITEREFMaurus_Servius_Honoratus\"] = 1,\n [\"CITEREFMiller-JonesBahramianOroszMandel2021\"] = 1,\n [\"CITEREFNaefMayorKorzennikQueloz2003\"] = 1,\n [\"CITEREFNowakHeinzBegelman2002\"] = 1,\n [\"CITEREFPausanias\"] = 1,\n [\"CITEREFRaghavanHenryMasonSubasavage2006\"] = 1,\n [\"CITEREFRidpathTirion2001\"] = 1,\n [\"CITEREFRussell1922\"] = 1,\n [\"CITEREFSchusterMarengoHoraFazio2009\"] = 1,\n [\"CITEREFShahbazRingwaldBunnNaylor1994\"] = 1,\n [\"CITEREFStaff2004\"] = 1,\n [\"CITEREFStuart_Clark2018\"] = 1,\n [\"CITEREFThompsonThompson,_Barbara2007\"] = 1,\n [\"CITEREFVogtButlerMarcyFischer2005\"] = 1,\n [\"CITEREFWagman2003\"] = 1,\n [\"CITEREFWilkinsDunn2006\"] = 1,\n [\"CITEREFWilsonFingerCamero-Arranz2008\"] = 1,\n [\"CITEREFZdziarskiMikolajewskaBelczynski2012\"] = 1,\n [\"CITEREFZiolkowski2014\"] = 1,\n}\ntemplate_list = table#1 {\n [\"Authority control\"] = 1,\n [\"Citation\"] = 2,\n [\"Cite APOD\"] = 1,\n [\"Cite book\"] = 10,\n [\"Cite journal\"] = 33,\n [\"Cite news\"] = 2,\n [\"Cite web\"] = 16,\n [\"Clear\"] = 1,\n [\"Commons and category\"] = 1,\n [\"Constellations\"] = 1,\n [\"DEC\"] = 1,\n [\"IPAc-en\"] = 2,\n [\"ISBN\"] = 3,\n [\"Infobox constellation\"] = 1,\n [\"Portal bar\"] = 1,\n [\"RA\"] = 3,\n [\"Reflist\"] = 1,\n [\"See also\"] = 2,\n [\"Sfn\"] = 12,\n [\"Short description\"] = 1,\n [\"Sky\"] = 1,\n [\"Snd\"] = 2,\n [\"Stars of Cygnus\"] = 1,\n [\"Use dmy dates\"] = 1,\n [\"Wikisource1911Enc\"] = 1,\n}\narticle_whitelist = table#1 {\n}\nciteref_patterns = table#1 {\n}\n"},"cachereport":{"origin":"mw-web.eqiad.main-d948c7fb8-xd8bc","timestamp":"20241206051628","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Cygnus (constellation)","url":"https:\/\/en.wikipedia.org\/wiki\/Cygnus_(constellation)","sameAs":"http:\/\/www.wikidata.org\/entity\/Q8921","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q8921","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2001-09-22T14:40:57Z","dateModified":"2024-11-10T22:19:07Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/3\/3c\/Cygnus_IAU.svg","headline":"constellation"}</script> </body> </html>