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class="vector-toc-link" href="#Indizeen_Katalogoa"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span><i>Indizeen Katalogoa</i></span> </div> </a> <ul id="toc-Indizeen_Katalogoa-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Katalogo_Orokor_Berri_Berrikusia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Katalogo_Orokor_Berri_Berrikusia"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Katalogo Orokor Berri Berrikusia</span> </div> </a> <ul id="toc-Katalogo_Orokor_Berri_Berrikusia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-NGC_2000.0" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#NGC_2000.0"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span><i>NGC 2000.0</i></span> </div> </a> <ul id="toc-NGC_2000.0-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-NGC/IC_Proiektua" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#NGC/IC_Proiektua"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>NGC/IC Proiektua</span> </div> </a> <ul id="toc-NGC/IC_Proiektua-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Katalogo_Orokor_Berri_Berrikusia_eta_Indizeen_Katalogoa" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Katalogo_Orokor_Berri_Berrikusia_eta_Indizeen_Katalogoa"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span><i>Katalogo Orokor Berri Berrikusia eta Indizeen Katalogoa</i></span> </div> </a> <ul id="toc-Katalogo_Orokor_Berri_Berrikusia_eta_Indizeen_Katalogoa-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Erreferentziak" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Erreferentziak"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Erreferentziak</span> </div> </a> <ul id="toc-Erreferentziak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kanpo_estekak" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Kanpo_estekak"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Kanpo estekak</span> </div> </a> <ul id="toc-Kanpo_estekak-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="Edukiak" 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="Eduki taularen ikusgarritasuna aldatu" > <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">Eduki taularen ikusgarritasuna aldatu</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">NGC sistema</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="Joan beste hizkuntza batean idatzitako artikulu batera. 69 hizkuntzatan eskuragarri." > <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-69" 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">69 hizkuntza</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/New_General_Catalogue_of_Nebulae_and_Clusters_of_Stars" title="New General Catalogue of Nebulae and Clusters of Stars – afrikaansa" lang="af" hreflang="af" data-title="New General Catalogue of Nebulae and Clusters of Stars" data-language-autonym="Afrikaans" data-language-local-name="afrikaansa" 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%D9%81%D9%87%D8%B1%D8%B3_%D8%A7%D9%84%D8%B9%D8%A7%D9%85_%D8%A7%D9%84%D8%AC%D8%AF%D9%8A%D8%AF" title="الفهرس العام الجديد – arabiera" lang="ar" hreflang="ar" data-title="الفهرس العام الجديد" data-language-autonym="العربية" data-language-local-name="arabiera" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D9%83%D8%AA%D8%A7%D9%84%D9%88%D8%AC_%D8%B9%D8%A7%D9%85_%D8%AC%D8%AF%D9%8A%D8%AF" title="كتالوج عام جديد – Egyptian Arabic" lang="arz" hreflang="arz" data-title="كتالوج عام جديد" data-language-autonym="مصرى" data-language-local-name="Egyptian Arabic" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – asturiera" lang="ast" hreflang="ast" data-title="New General Catalogue" data-language-autonym="Asturianu" data-language-local-name="asturiera" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Yeni_%C3%BCmumi_kataloq" title="Yeni ümumi kataloq – azerbaijanera" lang="az" hreflang="az" data-title="Yeni ümumi kataloq" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaijanera" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9D%D0%BE%D0%B2%D1%8B_%D0%B0%D0%B3%D1%83%D0%BB%D1%8C%D0%BD%D1%8B_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3" title="Новы агульны каталог – bielorrusiera" lang="be" hreflang="be" data-title="Новы агульны каталог" data-language-autonym="Беларуская" data-language-local-name="bielorrusiera" 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%9D%D0%BE%D0%B2%D1%8B_%D0%B0%D0%B3%D1%83%D0%BB%D1%8C%D0%BD%D1%8B_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D1%91%D0%B3" title="Новы агульны каталёг – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Новы агульны каталёг" 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%9D%D0%BE%D0%B2_%D0%BE%D0%B1%D1%89_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3" title="Нов общ каталог – bulgariera" lang="bg" hreflang="bg" data-title="Нов общ каталог" data-language-autonym="Български" data-language-local-name="bulgariera" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%A8%E0%A6%BF%E0%A6%89_%E0%A6%9C%E0%A7%87%E0%A6%A8%E0%A6%BE%E0%A6%B0%E0%A7%87%E0%A6%B2_%E0%A6%95%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%9F%E0%A6%BE%E0%A6%B2%E0%A6%97" title="নিউ জেনারেল ক্যাটালগ – bengalera" lang="bn" hreflang="bn" data-title="নিউ জেনারেল ক্যাটালগ" data-language-autonym="বাংলা" data-language-local-name="bengalera" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Novi_op%C4%87i_katalog" title="Novi opći katalog – bosniera" lang="bs" hreflang="bs" data-title="Novi opći katalog" data-language-autonym="Bosanski" data-language-local-name="bosniera" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – katalana" lang="ca" hreflang="ca" data-title="New General Catalogue" data-language-autonym="Català" data-language-local-name="katalana" 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/New_General_Catalogue" title="New General Catalogue – txekiera" lang="cs" hreflang="cs" data-title="New General Catalogue" data-language-autonym="Čeština" data-language-local-name="txekiera" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – daniera" lang="da" hreflang="da" data-title="New General Catalogue" data-language-autonym="Dansk" data-language-local-name="daniera" 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/New_General_Catalogue" title="New General Catalogue – alemana" lang="de" hreflang="de" data-title="New General Catalogue" data-language-autonym="Deutsch" data-language-local-name="alemana" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-diq mw-list-item"><a href="https://diq.wikipedia.org/wiki/Katalogo_Neweyo_P%C3%AAroyi" title="Katalogo Neweyo Pêroyi – Zazaki" lang="diq" hreflang="diq" data-title="Katalogo Neweyo Pêroyi" data-language-autonym="Zazaki" data-language-local-name="Zazaki" class="interlanguage-link-target"><span>Zazaki</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9D%CE%AD%CE%BF%CF%82_%CE%B3%CE%B5%CE%BD%CE%B9%CE%BA%CF%8C%CF%82_%CE%B1%CF%83%CF%84%CF%81%CE%BF%CE%BD%CE%BF%CE%BC%CE%B9%CE%BA%CF%8C%CF%82_%CE%BA%CE%B1%CF%84%CE%AC%CE%BB%CE%BF%CE%B3%CE%BF%CF%82" title="Νέος γενικός αστρονομικός κατάλογος – greziera" lang="el" hreflang="el" data-title="Νέος γενικός αστρονομικός κατάλογος" data-language-autonym="Ελληνικά" data-language-local-name="greziera" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – ingelesa" lang="en" hreflang="en" data-title="New General Catalogue" data-language-autonym="English" data-language-local-name="ingelesa" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/NGC-katalogo" title="NGC-katalogo – esperantoa" lang="eo" hreflang="eo" data-title="NGC-katalogo" data-language-autonym="Esperanto" data-language-local-name="esperantoa" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Nuevo_Cat%C3%A1logo_General" title="Nuevo Catálogo General – gaztelania" lang="es" hreflang="es" data-title="Nuevo Catálogo General" data-language-autonym="Español" data-language-local-name="gaztelania" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – estoniera" lang="et" hreflang="et" data-title="New General Catalogue" data-language-autonym="Eesti" data-language-local-name="estoniera" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%A9%D8%A7%D8%AA%D8%A7%D9%84%D9%88%DA%AF_%D8%B9%D9%85%D9%88%D9%85%DB%8C_%D8%AC%D8%AF%DB%8C%D8%AF" title="کاتالوگ عمومی جدید – persiera" lang="fa" hreflang="fa" data-title="کاتالوگ عمومی جدید" data-language-autonym="فارسی" data-language-local-name="persiera" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/NGC" title="NGC – finlandiera" lang="fi" hreflang="fi" data-title="NGC" data-language-autonym="Suomi" data-language-local-name="finlandiera" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – frantsesa" lang="fr" hreflang="fr" data-title="New General Catalogue" data-language-autonym="Français" data-language-local-name="frantsesa" 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/NGC" title="NGC – irlandera" lang="ga" hreflang="ga" data-title="NGC" data-language-autonym="Gaeilge" data-language-local-name="irlandera" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%94%D7%A7%D7%98%D7%9C%D7%95%D7%92_%D7%94%D7%9B%D7%9C%D7%9C%D7%99_%D7%94%D7%97%D7%93%D7%A9" title="הקטלוג הכללי החדש – hebreera" lang="he" hreflang="he" data-title="הקטלוג הכללי החדש" data-language-autonym="עברית" data-language-local-name="hebreera" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%8F%E0%A4%A8._%E0%A4%9C%E0%A5%80._%E0%A4%B8%E0%A5%80." title="एन. जी. सी. – hindia" lang="hi" hreflang="hi" data-title="एन. जी. सी." data-language-autonym="हिन्दी" data-language-local-name="hindia" 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/Novi_op%C4%87i_katalog" title="Novi opći katalog – kroaziera" lang="hr" hreflang="hr" data-title="Novi opći katalog" data-language-autonym="Hrvatski" data-language-local-name="kroaziera" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/NGC-katal%C3%B3gus" title="NGC-katalógus – hungariera" lang="hu" hreflang="hu" data-title="NGC-katalógus" data-language-autonym="Magyar" data-language-local-name="hungariera" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%86%D5%B8%D6%80_%D5%A8%D5%B6%D5%A4%D5%B0%D5%A1%D5%B6%D5%B8%D6%82%D6%80_%D5%AF%D5%A1%D5%BF%D5%A1%D5%AC%D5%B8%D5%A3" title="Նոր ընդհանուր կատալոգ – armeniera" lang="hy" hreflang="hy" data-title="Նոր ընդհանուր կատալոգ" data-language-autonym="Հայերեն" data-language-local-name="armeniera" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – indonesiera" lang="id" hreflang="id" data-title="New General Catalogue" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiera" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – italiera" lang="it" hreflang="it" data-title="New General Catalogue" data-language-autonym="Italiano" data-language-local-name="italiera" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%83%8B%E3%83%A5%E3%83%BC%E3%82%B8%E3%82%A7%E3%83%8D%E3%83%A9%E3%83%AB%E3%82%AB%E3%82%BF%E3%83%AD%E3%82%B0" title="ニュージェネラルカタログ – japoniera" lang="ja" hreflang="ja" data-title="ニュージェネラルカタログ" data-language-autonym="日本語" data-language-local-name="japoniera" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – javera" lang="jv" hreflang="jv" data-title="New General Catalogue" data-language-autonym="Jawa" data-language-local-name="javera" 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%90%E1%83%AE%E1%83%90%E1%83%9A%E1%83%98_%E1%83%A1%E1%83%90%E1%83%94%E1%83%A0%E1%83%97%E1%83%9D_%E1%83%99%E1%83%90%E1%83%A2%E1%83%90%E1%83%9A%E1%83%9D%E1%83%92%E1%83%98" title="ახალი საერთო კატალოგი – georgiera" lang="ka" hreflang="ka" data-title="ახალი საერთო კატალოგი" data-language-autonym="ქართული" data-language-local-name="georgiera" 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%96%D0%B0%D2%A3%D0%B0_%D0%B6%D0%B0%D0%BB%D0%BF%D1%8B_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3" title="Жаңа жалпы каталог – kazakhera" lang="kk" hreflang="kk" data-title="Жаңа жалпы каталог" data-language-autonym="Қазақша" data-language-local-name="kazakhera" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%8B%A0%ED%8C%90%EC%9D%BC%EB%B0%98%EB%AA%A9%EB%A1%9D" title="신판일반목록 – koreera" lang="ko" hreflang="ko" data-title="신판일반목록" data-language-autonym="한국어" data-language-local-name="koreera" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Kataloga_Gi%C5%9Ft%C3%AE_ya_N%C3%BB" title="Kataloga Giştî ya Nû – kurduera" lang="ku" hreflang="ku" data-title="Kataloga Giştî ya Nû" data-language-autonym="Kurdî" data-language-local-name="kurduera" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – luxenburgera" lang="lb" hreflang="lb" data-title="New General Catalogue" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxenburgera" 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/NGC_katalogas" title="NGC katalogas – lituaniera" lang="lt" hreflang="lt" data-title="NGC katalogas" data-language-autonym="Lietuvių" data-language-local-name="lituaniera" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – letoniera" lang="lv" hreflang="lv" data-title="New General Catalogue" data-language-autonym="Latviešu" data-language-local-name="letoniera" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9D%D0%BE%D0%B2_%D0%BE%D0%BF%D1%88%D1%82_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3" title="Нов општ каталог – mazedoniera" lang="mk" hreflang="mk" data-title="Нов општ каталог" data-language-autonym="Македонски" data-language-local-name="mazedoniera" 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%A8%E0%B5%8D%E0%B4%AF%E0%B5%82_%E0%B4%9C%E0%B5%86%E0%B4%A8%E0%B4%B1%E0%B5%BD_%E0%B4%95%E0%B4%BE%E0%B4%B1%E0%B5%8D%E0%B4%B1%E0%B4%B2%E0%B5%8B%E0%B4%97%E0%B5%8D" title="ന്യൂ ജെനറൽ കാറ്റലോഗ് – malabarera" lang="ml" hreflang="ml" data-title="ന്യൂ ജെനറൽ കാറ്റലോഗ്" data-language-autonym="മലയാളം" data-language-local-name="malabarera" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Katalog_Am_Baru" title="Katalog Am Baru – malaysiera" lang="ms" hreflang="ms" data-title="Katalog Am Baru" data-language-autonym="Bahasa Melayu" data-language-local-name="malaysiera" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%94%E1%80%80%E1%80%BA%E1%80%97%E1%80%BB%E1%80%B0%E1%80%9C%E1%80%AC%E1%80%99%E1%80%BB%E1%80%AC%E1%80%B8%E1%80%94%E1%80%BE%E1%80%84%E1%80%B7%E1%80%BA_%E1%80%80%E1%80%BC%E1%80%9A%E1%80%BA%E1%80%A1%E1%80%AF%E1%80%95%E1%80%BA%E1%80%85%E1%80%AF%E1%80%90%E1%80%AD%E1%80%AF%E1%80%B7%E1%81%8F_%E1%80%9A%E1%80%B1%E1%80%98%E1%80%AF%E1%80%9A%E1%80%BB_%E1%80%A1%E1%80%99%E1%80%BB%E1%80%AD%E1%80%AF%E1%80%B8%E1%80%A1%E1%80%99%E1%80%8A%E1%80%BA%E1%80%85%E1%80%AC%E1%80%9B%E1%80%84%E1%80%BA%E1%80%B8" title="နက်ဗျူလာများနှင့် ကြယ်အုပ်စုတို့၏ ယေဘုယျ အမျိုးအမည်စာရင်း – birmaniera" lang="my" hreflang="my" data-title="နက်ဗျူလာများနှင့် ကြယ်အုပ်စုတို့၏ ယေဘုယျ အမျိုးအမည်စာရင်း" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmaniera" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – behe-alemana" lang="nds" hreflang="nds" data-title="New General Catalogue" data-language-autonym="Plattdüütsch" data-language-local-name="behe-alemana" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – nederlandera" lang="nl" hreflang="nl" data-title="New General Catalogue" data-language-autonym="Nederlands" data-language-local-name="nederlandera" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – nynorsk (norvegiera)" lang="nn" hreflang="nn" data-title="New General Catalogue" data-language-autonym="Norsk nynorsk" data-language-local-name="nynorsk (norvegiera)" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/NGC-katalogen" title="NGC-katalogen – bokmål (norvegiera)" lang="nb" hreflang="nb" data-title="NGC-katalogen" data-language-autonym="Norsk bokmål" data-language-local-name="bokmål (norvegiera)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/NGC" title="NGC – okzitaniera" lang="oc" hreflang="oc" data-title="NGC" data-language-autonym="Occitan" data-language-local-name="okzitaniera" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – poloniera" lang="pl" hreflang="pl" data-title="New General Catalogue" data-language-autonym="Polski" data-language-local-name="poloniera" 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/New_General_Catalogue" title="New General Catalogue – portugesa" lang="pt" hreflang="pt" data-title="New General Catalogue" data-language-autonym="Português" data-language-local-name="portugesa" 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/New_General_Catalogue" title="New General Catalogue – errumaniera" lang="ro" hreflang="ro" data-title="New General Catalogue" data-language-autonym="Română" data-language-local-name="errumaniera" 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%9D%D0%BE%D0%B2%D1%8B%D0%B9_%D0%BE%D0%B1%D1%89%D0%B8%D0%B9_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3" title="Новый общий каталог – errusiera" lang="ru" hreflang="ru" data-title="Новый общий каталог" data-language-autonym="Русский" data-language-local-name="errusiera" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Novi_op%C5%A1ti_katalog" title="Novi opšti katalog – serbokroaziera" lang="sh" hreflang="sh" data-title="Novi opšti katalog" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroaziera" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – Simple English" lang="en-simple" hreflang="en-simple" data-title="New General Catalogue" 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/Nov%C3%BD_v%C5%A1eobecn%C3%BD_katal%C3%B3g" title="Nový všeobecný katalóg – eslovakiera" lang="sk" hreflang="sk" data-title="Nový všeobecný katalóg" data-language-autonym="Slovenčina" data-language-local-name="eslovakiera" 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/Novi_splo%C5%A1ni_katalog" title="Novi splošni katalog – esloveniera" lang="sl" hreflang="sl" data-title="Novi splošni katalog" data-language-autonym="Slovenščina" data-language-local-name="esloveniera" 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%9D%D0%BE%D0%B2%D0%B8_%D0%BE%D0%BF%D1%88%D1%82%D0%B8_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3" title="Нови општи каталог – serbiera" lang="sr" hreflang="sr" data-title="Нови општи каталог" data-language-autonym="Српски / srpski" data-language-local-name="serbiera" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/New_General_Catalogue" title="New General Catalogue – suediera" lang="sv" hreflang="sv" data-title="New General Catalogue" data-language-autonym="Svenska" data-language-local-name="suediera" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AA%E0%AF%81%E0%AE%A4%E0%AE%BF%E0%AE%AF_%E0%AE%AA%E0%AF%8A%E0%AE%A4%E0%AF%81%E0%AE%AA%E0%AF%8D_%E0%AE%AA%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AE%BF%E0%AE%AF%E0%AE%B2%E0%AF%8D" title="புதிய பொதுப் பட்டியல் – tamilera" lang="ta" hreflang="ta" data-title="புதிய பொதுப் பட்டியல்" data-language-autonym="தமிழ்" data-language-local-name="tamilera" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%AA%E0%B8%B2%E0%B8%A3%E0%B8%9A%E0%B8%B1%E0%B8%8D%E0%B9%81%E0%B8%9F%E0%B9%89%E0%B8%A1%E0%B8%97%E0%B8%B1%E0%B9%88%E0%B8%A7%E0%B9%84%E0%B8%9B%E0%B9%83%E0%B8%AB%E0%B8%A1%E0%B9%88" title="สารบัญแฟ้มทั่วไปใหม่ – thailandiera" lang="th" hreflang="th" data-title="สารบัญแฟ้มทั่วไปใหม่" data-language-autonym="ไทย" data-language-local-name="thailandiera" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Yeni_Genel_Katalog" title="Yeni Genel Katalog – turkiera" lang="tr" hreflang="tr" data-title="Yeni Genel Katalog" data-language-autonym="Türkçe" data-language-local-name="turkiera" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%AF%D2%A3%D0%B0_%D0%B3%D0%BE%D0%BC%D1%83%D0%BC%D0%B8_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3" title="Яңа гомуми каталог – tatarera" lang="tt" hreflang="tt" data-title="Яңа гомуми каталог" data-language-autonym="Татарча / tatarça" data-language-local-name="tatarera" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9D%D0%BE%D0%B2%D0%B8%D0%B9_%D0%B7%D0%B0%D0%B3%D0%B0%D0%BB%D1%8C%D0%BD%D0%B8%D0%B9_%D0%BA%D0%B0%D1%82%D0%B0%D0%BB%D0%BE%D0%B3" title="Новий загальний каталог – ukrainera" lang="uk" hreflang="uk" data-title="Новий загальний каталог" data-language-autonym="Українська" data-language-local-name="ukrainera" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Yangi_umumiy_katalog" title="Yangi umumiy katalog – uzbekera" lang="uz" hreflang="uz" data-title="Yangi umumiy katalog" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbekera" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Thi%C3%AAn_th%E1%BB%83_NGC" title="Thiên thể NGC – vietnamera" lang="vi" hreflang="vi" data-title="Thiên thể NGC" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamera" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E6%98%9F%E4%BA%91%E6%90%AD%E6%98%9F%E5%9B%A2%E6%96%B0%E6%80%BB%E8%A1%A8" title="星云搭星团新总表 – wu txinera" lang="wuu" hreflang="wuu" data-title="星云搭星团新总表" data-language-autonym="吴语" data-language-local-name="wu txinera" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/NGC%E5%A4%A9%E9%AB%94%E8%A1%A8" title="NGC天體表 – txinera" lang="zh" hreflang="zh" data-title="NGC天體表" data-language-autonym="中文" data-language-local-name="txinera" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/NGC_thian-th%C3%A9_bo%CC%8Dk-lio%CC%8Dk" title="NGC thian-thé bo̍k-lio̍k – Minnan" lang="nan" hreflang="nan" data-title="NGC thian-thé bo̍k-lio̍k" 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> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q14534#sitelinks-wikipedia" title="Aldatu hizkuntzen arteko loturak" class="wbc-editpage">Aldatu loturak</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Izen-tarteak"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/NGC_sistema" title="Eduki orrialdea ikusi [c]" accesskey="c"><span>Artikulua</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Eztabaida:NGC_sistema&action=edit&redlink=1" rel="discussion" class="new" title="Artikuluari buruzko eztabaida (sortu gabe) [t]" accesskey="t"><span>Eztabaida</span></a></li> </ul> </div> </div> <div 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<div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="eu" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fitxategi:NGC_3982_-_Hubble_space_telescope,_2003.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/NGC_3982_-_Hubble_space_telescope%2C_2003.jpg/220px-NGC_3982_-_Hubble_space_telescope%2C_2003.jpg" decoding="async" width="220" height="202" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a0/NGC_3982_-_Hubble_space_telescope%2C_2003.jpg/330px-NGC_3982_-_Hubble_space_telescope%2C_2003.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a0/NGC_3982_-_Hubble_space_telescope%2C_2003.jpg/440px-NGC_3982_-_Hubble_space_telescope%2C_2003.jpg 2x" data-file-width="1083" data-file-height="992" /></a><figcaption><a href="/wiki/NGC_3982" title="NGC 3982">NGC 3982</a> galaxia kiribilak izar distiratsuak, kluster urdinak eta eskualde ilunak dituzten zenbait beso kiribil erakusten ditu. 30.000 argi urte hedatzen da eta Lurretik 60 milioi argi urtera dago. Teleskopio txiki batekin ere ikus daiteke Hartz Nagusiko konstelazioan.</figcaption></figure> <p><b>Nebulosen eta Izarren Kumuluen Katalogo Orokor Berria</b> (NGC, Ingelesez: <i>New General Catalogue of Nebulae and Clusters of Stars</i>) <a href="/w/index.php?title=John_Louis_Emil_Dreyer&action=edit&redlink=1" class="new" title="John Louis Emil Dreyer (sortu gabe)">John Louis Emil Dreyerrek</a> 1888an bildutako <a href="/wiki/Zeru_sakoneko_objektu" class="mw-redirect" title="Zeru sakoneko objektu">zeru sakoneko objektuen</a> <a href="/w/index.php?title=Katalogo_astronomiko&action=edit&redlink=1" class="new" title="Katalogo astronomiko (sortu gabe)">katalogo astronomiko</a> bat da. NGCk 7.840 objektu ditu, horien artean <a href="/wiki/Galaxia" title="Galaxia">galaxiak</a>, <a href="/wiki/Izar-kumulu" class="mw-redirect" title="Izar-kumulu">izar kumuluak</a>, <a href="/wiki/Nebulosa" title="Nebulosa">igorpen nebulosak</a> eta <a href="/wiki/Nebulosa_ilun" title="Nebulosa ilun">xurgapen nebulosak</a>. Dreyerrek NGCren bi gehigarri argitaratu zituen 1895ean eta 1908an, <i><b>Indize Katalogoak</b></i> (<b>IC</b> laburtua) bezala ezagutzen direnak, non beste 5.386 objektu astronomiko deskribatzen diren. Objektu hauetako milaka hobeto ezagutzen dira NGC edo IC zenbakiengatik, oraindik ere erabilera orokortukoak direnak. </p><p>NGCk <a href="/wiki/William_Herschel" title="William Herschel">William</a> eta <a href="/wiki/Caroline_Lucretia_Herschel" title="Caroline Lucretia Herschel">Caroline Herschelen</a> katalogazio lana zabaldu eta sendotu zuen, baita <a href="/wiki/John_Herschel" title="John Herschel">John Herschelen</a> <i>Nebulosen eta Izarren Kumuluen Katalogo Orokorra</i> ere. <a href="/wiki/Zeru-esfera" title="Zeru-esfera">Zeru ekuatorearen</a> hegoaldean dauden objektuak, ez daude hain zehatz katalogatuak, baina asko, <a href="/wiki/John_Herschel" title="John Herschel">John Herschel</a> edo <a href="/w/index.php?title=James_Dunlop&action=edit&redlink=1" class="new" title="James Dunlop (sortu gabe)">James Dunlopen</a> behaketetatik sartu ziren. </p><p>NGCk akats ugari zituen, baina <a href="/w/index.php?title=Jack_W._Sulentic&action=edit&redlink=1" class="new" title="Jack W. Sulentic (sortu gabe)">Jack W. Sulentic</a> eta <a href="/w/index.php?title=William_G._Tifft&action=edit&redlink=1" class="new" title="William G. Tifft (sortu gabe)">William G. Tifften</a> <i>Katalogo Orokor Berri Berrikusia</i> (RNGC) 1973an, <a href="/w/index.php?title=Roger_W._Sinnott&action=edit&redlink=1" class="new" title="Roger W. Sinnott (sortu gabe)">Roger W. Sinnotten</a> <i>NGC2000.0</i> 1988an eta 1993an <i>NGC/IC Proiektuarekin</i> ezabatzen saiatu ziren. <i>Katalogo Orokor Berri Berrikusia eta Indizeen Katalogoa</i> (RNGC/IC bezala laburtua) 2009an <a href="/w/index.php?title=Wolfgang_Steinicke&action=edit&redlink=1" class="new" title="Wolfgang Steinicke (sortu gabe)">Wolfgang Steinickek</a> bildu eta 2019an 13957 objekturekin eguneratu zuen.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Jatorrizko_katalogoa">Jatorrizko katalogoa</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=NGC_sistema&veaction=edit&section=1" title="Aldatu atal hau: «Jatorrizko katalogoa»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=NGC_sistema&action=edit&section=1" title="Edit section's source code: Jatorrizko katalogoa"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Jatorrizko Katalogo Orokor Berria 1880ko hamarkadan bildu zuen <a href="/w/index.php?title=John_Louis_Emil_Dreyer&action=edit&redlink=1" class="new" title="John Louis Emil Dreyer (sortu gabe)">John Louis Emil Dreyerrek</a> <a href="/wiki/William_Herschel" title="William Herschel">William Herschel</a> eta bere seme <a href="/wiki/John_Herschel" title="John Herschel">Johnen</a> oharrak erabiliz. Dreyerrek jada argitaratua zuen Herschelen <i>Nebulosa eta Kumuluen Katalogo Orokorraren</i> (GC) gehigarri bat,<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> 1.000 objektu berri zituena. 1886an, <i>Katalogo Orokorraren</i> bigarren gehigarri bat egitea proposatu zuen, baina <a href="/wiki/Royal_Astronomical_Society" title="Royal Astronomical Society">Royal Astronomical Societyk</a> bertsio berri bat biltzeko eskatu zion Dreyerri. Honek, 1888an, <i>Memoirs of the Royal Astronomical Societyn</i> <i>Katalogo Orokor Berria</i> argitaratzera eraman zuen.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>NGCren bilketa erronka bat izan zen, Dreyerrek, 2 hazbetetik 72 hazbetera bitarteko irekiera zuten teleskopio barietateekin egindako txosten kontraesankor eta ez oso argi askorekin toreatu behar izan baitzuen. Horietako batzuk bere kabuz egiaztatu zituen arren, objektu kopuru handiak, Dreyerrek, beste batzuek argitaratutzat hartu behar izatea eragin zuen, bere konpilazioaren ondorioetarako. Katalogoak, zenbait akats zituen, gehienak, posizioarekin eta deskribapenekin lotuak, baina Dreyerrek, katalogoari erreferentzia egin zion, ondorengo astronomoei, jatorrizko erreferentziak berrikustea eta jatorrizko NGCri zuzenketak argitaratzea ahalbidetu ziena.<sup id="cite_ref-:0_5-0" class="reference"><a href="#cite_note-:0-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Indizeen_Katalogoa"><i>Indizeen Katalogoa</i></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=NGC_sistema&veaction=edit&section=2" title="Aldatu atal hau: «Indizeen Katalogoa»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=NGC_sistema&action=edit&section=2" title="Edit section's source code: Indizeen Katalogoa"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>NGCren lehen eguneratze garrantzitsua <i>Nebulosen eta Izarren Kumuluen Indizearen Katalogoa</i> da (IC bezala laburtua), Dreyerrek 1895ean bi zatitan argitaratua (IC I,<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> 1.520 objektu dituena) eta 1908 (IC II,<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> 3.866 objektu dituena). NGCren gehigarri gisa balio du, eta 5.386 objektu gehigarri ditu, kolektiboki IC objektuak bezala ezagutzen direnak. Galaxia, kumulu eta nebulosen aurkikuntzak laburbiltzen ditu 1888 eta 1907 artean, gehienak <a href="/wiki/Astrofotografia" title="Astrofotografia">argazkigintzari</a> esker posible izan zirenak. 1912an, IKren zuzenketen zerrenda bat argitaratu zen.<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> <div class="mw-heading mw-heading2"><h2 id="Katalogo_Orokor_Berri_Berrikusia">Katalogo Orokor Berri Berrikusia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=NGC_sistema&veaction=edit&section=3" title="Aldatu atal hau: «Katalogo Orokor Berri Berrikusia»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=NGC_sistema&action=edit&section=3" title="Edit section's source code: Katalogo Orokor Berri Berrikusia"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/Fitxategi:NGC_6543_7662_7009_6826.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0d/NGC_6543_7662_7009_6826.jpg/256px-NGC_6543_7662_7009_6826.jpg" decoding="async" width="256" height="256" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0d/NGC_6543_7662_7009_6826.jpg/384px-NGC_6543_7662_7009_6826.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0d/NGC_6543_7662_7009_6826.jpg/512px-NGC_6543_7662_7009_6826.jpg 2x" data-file-width="525" data-file-height="525" /></a><figcaption>Lau <a href="/wiki/Nebulosa_planetario" title="Nebulosa planetario">nebulosa planetario</a> desberdin. Erlojuaren orratzen noranzkoan, goiko ezkerretik hasita: <a href="/wiki/Katu_Begi_nebulosa" title="Katu Begi nebulosa">NGC 6543</a>, <a href="/wiki/NGC_7662" title="NGC 7662">NGC 7662</a>, <a href="/w/index.php?title=NGC_6826&action=edit&redlink=1" class="new" title="NGC 6826 (sortu gabe)">NGC 6826</a> eta <a href="/wiki/NGC_7009" class="mw-redirect" title="NGC 7009">NGC 7009</a>.</figcaption></figure> <p><a href="/w/index.php?title=Jack_W._Sulentic&action=edit&redlink=1" class="new" title="Jack W. Sulentic (sortu gabe)">Jack W. Sulentic</a> eta <a href="/w/index.php?title=William_G._Tifft&action=edit&redlink=1" class="new" title="William G. Tifft (sortu gabe)">William G. Tifftek</a> 1970eko hamarkadaren hasieran konposatu zuten <i>Estelarrak ez diren Objektu Astronomikoen Katalogo Berrikusia</i> (RNGC bezala laburtua), eta 1973an argitaratu zen, NGCren eguneratze gisa.<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> Lanak ez zituen NGCren datuen aurretik argitaratutako hainbat zuzenketa jaso (Dreyerrek berak argitaratutako zuzenketak barne), eta akats berri batzuk sartu zituen. Adibidez, <a href="/wiki/Leo_(konstelazioa)" title="Leo (konstelazioa)">Leo</a> konstelazioko <a href="/w/index.php?title=Copeland_Septet&action=edit&redlink=1" class="new" title="Copeland Septet (sortu gabe)">Copeland Septet</a> galaxia trinkoen talde ezaguna ez da existitzen RNGC konstelazioan.<sup id="cite_ref-:1_10-0" class="reference"><a href="#cite_note-:1-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:0_5-1" class="reference"><a href="#cite_note-:0-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>800 objektu inguru "existitzen ez direnak" bezala agertzen dira RNGCn. Izendapen hori katalogoko sarrera bikoiztuak diren objektuei aplikatzen zaie, ondorengo behaketetan hauteman ez ziren objektuei eta ondorengo azterlanetan bat zetozen multzotzat hartu ziren izar kumulu gisa katalogatutako objektu batzuei. 1993ko monografia batek RNKn existitzen ez diren 229 izar kumuluak aintzat hartu zituen. "Gaizki identifikatuak izan ziren edo aurkitu ez ziren XVIII. eta XIX. mendeetan aurkitu zirenetik".<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> 229 kumuluetako bat, NGC 1498, benetan zeruan ez zegoela aurkitu zen. Beste bost beste sarrera batzuen bikoiztuak ziren, 99 "nolabait" zeuden eta beste 124ek ikerketa gehiago behar zituzten konpontzeko.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p><p>Beste adibide bat: <a href="/wiki/Orion_(konstelazioa)" title="Orion (konstelazioa)">Orionen</a> NGC 2163 <a href="/wiki/Islada_nebulosa" class="mw-redirect" title="Islada nebulosa">islapen nebulosa</a>, "Existitzen ez dena" bezala sailkatua izan zen, Dreyerren transkripzio akats baten ondorioz. Dreyerrek bere akatsa zuzendu zuen Indizearen Katalogoetan, baina RNGCk jatorrizko akatsa mantendu zuen, eta, gainera, deklinabidearen zeinua alderantzikatu zuen, NGC 2163 existitzen ez zela sailkatzea eragin zuena.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="NGC_2000.0"><i>NGC 2000.0</i></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=NGC_sistema&veaction=edit&section=4" title="Aldatu atal hau: «NGC 2000.0»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=NGC_sistema&action=edit&section=4" title="Edit section's source code: NGC 2000.0"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>NGC 2000.0</i> (<i>Katalogo Orokor Osoa eta Izarretako Nebulosa eta Kumuluen Katalogo Indizea</i> ere deitua) <a href="/w/index.php?title=Roger_W._Sinnott&action=edit&redlink=1" class="new" title="Roger W. Sinnott (sortu gabe)">Roger W. Sinnottek</a> 1988an egindako NGC eta IC konpilazio bat da, <a href="/wiki/Garai_(astronomia)" title="Garai (astronomia)">J2000.0</a> koordenatuak erabiliz.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> Astronomoek urteetan zehar egindako hainbat zuzenketa eta akats jasotzen ditu.<sup id="cite_ref-:0_5-2" class="reference"><a href="#cite_note-:0-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="NGC/IC_Proiektua"><span id="NGC.2FIC_Proiektua"></span>NGC/IC Proiektua</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=NGC_sistema&veaction=edit&section=5" title="Aldatu atal hau: «NGC/IC Proiektua»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=NGC_sistema&action=edit&section=5" title="Edit section's source code: NGC/IC Proiektua"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>NGC/IC proiektua astronomo profesionalen eta zaleen arteko lankidetza da, 1993an sortua. 2017an amaituta, helburua zen NGC eta IC objektu guztiak identifikatzea, akatsak zuzentzea eta oinarrizko irudi eta datu astronomikoak biltzea. Taldeko kide nagusiak Harold g. Corwin Jr., Steve Gottlieb, Malcolm Thomson, Robert E. Erdman eta Jeffrey Corder izan ziren.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Katalogo_Orokor_Berri_Berrikusia_eta_Indizeen_Katalogoa"><i>Katalogo Orokor Berri Berrikusia eta Indizeen Katalogoa</i></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=NGC_sistema&veaction=edit&section=6" title="Aldatu atal hau: «Katalogo Orokor Berri Berrikusia eta Indizeen Katalogoa»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=NGC_sistema&action=edit&section=6" title="Edit section's source code: Katalogo Orokor Berri Berrikusia eta Indizeen Katalogoa"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><i>Katalogo Orokor Berri Berrikusia eta Indizeen Katalogoa</i> (<i>RNGC/IC</i> bezala laburtua) <a href="/w/index.php?title=Wolfgang_Steinicke&action=edit&redlink=1" class="new" title="Wolfgang Steinicke (sortu gabe)">Wolfgang Steinickek</a> 2009an egindako bilduma bat da.<sup id="cite_ref-:1_10-1" class="reference"><a href="#cite_note-:1-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> NGC eta IC katalogoen tratamendu zehatza eta baimendua da.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Erreferentziak">Erreferentziak</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=NGC_sistema&veaction=edit&section=7" title="Aldatu atal hau: «Erreferentziak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=NGC_sistema&action=edit&section=7" title="Edit section's source code: Erreferentziak"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist columns references-column-width" style="-moz-column-width: 30em; -webkit-column-width: 30em; column-width: 30em; list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1">↑</a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.klima-luft.de/steinicke/ngcic/rev2000/NI2019.zip">RNGC/IC 2019</a></span> </li> <li id="cite_note-2"><a href="#cite_ref-2">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFDreyerHerschel1878">Dreyer, J. L. E. (John Louis Emil); Herschel, John F. W. (John Frederick William).  (1878). <a rel="nofollow" class="external text" href="http://archive.org/details/supplementtosirj00dreyrich"><i>A supplement to Sir John Herschel's "General catalogue of nebulae and clusters of stars.". </i></a> Dublin, The (Royal Irish) Academy <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-3"><a href="#cite_ref-3">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFBradt2003-12-11">Bradt, Hale.  (2003-12-11). <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1017/cbo9780511802188"><i>Astronomy Methods. </i></a> Cambridge University Press <a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Berezi:BookSources/978-0-521-36440-9" title="Berezi:BookSources/978-0-521-36440-9">978-0-521-36440-9</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-4"><a href="#cite_ref-4">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFDreyer1888">Dreyer, J. L. E..  (1888). <a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/1888MmRAS..49....1D">«A New General Catalogue of Nebulæ and Clusters of Stars, being the Catalogue of the late Sir John F. W. Herschel, Bart, revised, corrected, and enlarged»</a> <i>Memoirs of the Royal Astronomical Society</i> 49: 1. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-:0-5">↑ <a href="#cite_ref-:0_5-0"><sup><b>a</b></sup></a> <a href="#cite_ref-:0_5-1"><sup><b>b</b></sup></a> <a href="#cite_ref-:0_5-2"><sup><b>c</b></sup></a> <span class="reference-text"><span class="citation"></span> <span class="citation"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120510214957/http://www.ngcicproject.org/history.htm">«About The NGC / IC Project...»</a> <i>web.archive.org</i> 2012-05-10 <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-6"><a href="#cite_ref-6">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREF1852-1926.1895">1852-1926., Dreyer, J. L. E. (John Louis Emil),.  (1895). <a rel="nofollow" class="external text" href="http://worldcat.org/oclc/6669435"><i>Index catalogue of nebulae found in the years 1888 to 1894, with notes and corrections to the new general catalogue. </i></a> Royal Astonomical Society <a href="/wiki/PubMed_Central" class="mw-redirect" title="PubMed Central">PMC</a> <a rel="nofollow" class="external text" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=6669435">6669435</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-7"><a href="#cite_ref-7">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFE.1908">E., Dreyer, J. L..  (1908). <a rel="nofollow" class="external text" href="http://worldcat.org/oclc/488708304"><i>Second Index Catalogue of Nebulæ and Clusters of Stars; Containing Objects found in the Years 1895 to 1907, with Notes and Corrections to the new General Catalogue and to the Index Catalogue for 1888-94. </i></a> <a href="/wiki/PubMed_Central" class="mw-redirect" title="PubMed Central">PMC</a> <a rel="nofollow" class="external text" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=488708304">488708304</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-8"><a href="#cite_ref-8">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFDreyer1912-11-08">Dreyer, J. L. E..  (1912-11-08). <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1093/mnras/73.1.37">«Corrections to the New General Catalogue resulting from the Revision of Sir William Herschel's three Catalogues of Nebul»</a> <i>Monthly Notices of the Royal Astronomical Society</i> 73 (1): 37–40.  <a href="/wiki/Digital_object_identifier" title="Digital object identifier">doi</a>:<span class="neverexpand"><a rel="nofollow" class="external text" href="https://dx.doi.org/10.1093%2Fmnras%2F73.1.37">10.1093/mnras/73.1.37</a></span>. <a href="/wiki/International_Standard_Serial_Number" class="mw-redirect" title="International Standard Serial Number">ISSN</a> <a rel="nofollow" class="external text" href="http://worldcat.org/issn/0035-8711">0035-8711</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-9"><a href="#cite_ref-9">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFW.Arizona_:">W., Sulentic, J..  (Arizona :). <a rel="nofollow" class="external text" href="http://worldcat.org/oclc/878855083"><i>The revised new general catalogue of nonstellar astronomical objects. </i></a> The University of Arizona Press <a href="/wiki/PubMed_Central" class="mw-redirect" title="PubMed Central">PMC</a> <a rel="nofollow" class="external text" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=878855083">878855083</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-:1-10">↑ <a href="#cite_ref-:1_10-0"><sup><b>a</b></sup></a> <a href="#cite_ref-:1_10-1"><sup><b>b</b></sup></a> <span class="reference-text"><span class="citation"></span> <span class="citation"><i>www.klima-luft.de</i> <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-11"><a href="#cite_ref-11">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation"><a rel="nofollow" class="external text" href="https://www.webbdeepsky.com/nebulae-clusters/mono1">«Webb Deep-Sky Society: Monograph No. 1 - The "Non-Existent" Star Clusters of the RNGC»</a> <i>www.webbdeepsky.com</i> <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-12"><a href="#cite_ref-12">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFAllison2006">Allison, Mark.  (2006). <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/209948936"><i>Star clusters and how to observe them. </i></a> Springer <a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Berezi:BookSources/978-1-84628-198-3" title="Berezi:BookSources/978-1-84628-198-3">978-1-84628-198-3</a>. <a href="/wiki/PubMed_Central" class="mw-redirect" title="PubMed Central">PMC</a> <a rel="nofollow" class="external text" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=209948936">209948936</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-13"><a href="#cite_ref-13">↑</a> <span class="reference-text"><span class="citation"> <span style="cursor: help; font-size: 90%; font-family: bold; color: gray" title="Ingelesez dago aipu honen iturburua"><b>(Ingelesez)</b></span></span> <span class="citation" id="CITEREFO'Meara2007-04-12">O'Meara, Stephen James.  (2007-04-12). <a rel="nofollow" class="external text" href="https://books.google.es/books?id=a6VY0Q1zsJoC&pg=PA176&redir_esc=y#v=onepage&q&f=false"><i>Deep-Sky Companions: Hidden Treasures. </i></a> Cambridge University Press <a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Berezi:BookSources/978-1-139-46373-7" title="Berezi:BookSources/978-1-139-46373-7">978-1-139-46373-7</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-14"><a href="#cite_ref-14">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20121020075827/http://heasarc.gsfc.nasa.gov/W3Browse/all/ngc2000.html">«NGC2000 - NGC2000.0: Complete New General Catalog and Index Catalog»</a> <i>web.archive.org</i> 2012-10-20 <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-15"><a href="#cite_ref-15">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFDreyer1988">Dreyer, J. L. E..  (1988). <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/18559185"><i>NGC 2000.0 : the complete new general catalogue and index catalogues of nebulae and star clusters. </i></a> Cambridge University Press <a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Berezi:BookSources/0-521-37813-3" title="Berezi:BookSources/0-521-37813-3">0-521-37813-3</a>. <a href="/wiki/PubMed_Central" class="mw-redirect" title="PubMed Central">PMC</a> <a rel="nofollow" class="external text" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=18559185">18559185</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-16"><a href="#cite_ref-16">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation"><a rel="nofollow" class="external text" href="http://ngcicproject.observers.org/">«The NGC / IC Project - Home of the Historically Corrected New General Catalogue (HCNGC) since 1993»</a> <i>ngcicproject.observers.org</i> <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-17"><a href="#cite_ref-17">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFSteinicke2010">Steinicke, Wolfgang.  (2010). <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/664571198"><i>Observing and cataloguing nebulae and star clusters : from Herschel to Dreyer's new general catalogue. </i></a> Cambridge University Press <a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Berezi:BookSources/978-0-511-78953-3" title="Berezi:BookSources/978-0-511-78953-3">978-0-511-78953-3</a>. <a href="/wiki/PubMed_Central" class="mw-redirect" title="PubMed Central">PMC</a> <a rel="nofollow" class="external text" href="http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=664571198">664571198</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-18"><a href="#cite_ref-18">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFGraff1928">Graff, Kasimir.  (1928). <a rel="nofollow" class="external text" href="https://dx.doi.org/10.1007/978-3-663-15952-0_8">«Die kosmischen Nebel und Sternhaufen»</a> <i>Grundriss der Astrophysik</i> (Vieweg+Teubner Verlag): 643–724. <a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Berezi:BookSources/978-3-663-15381-8" title="Berezi:BookSources/978-3-663-15381-8">978-3-663-15381-8</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> <li id="cite_note-19"><a href="#cite_ref-19">↑</a> <span class="reference-text"><span class="citation"></span> <span class="citation" id="CITEREFDuerbeckSteinicke2011-03-01">Duerbeck, Hilmar W.; Steinicke, Wolfgang.  (2011-03-01). <a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/abs/2011JAHH...14Q..78D">«Observing and Cataloguing Nebulae and Star Clusters. From Herschel to Dreyer's New General Catalogue (Steinicke)»</a> <i>Journal of Astronomical History and Heritage</i> 14: 78. <a href="/wiki/International_Standard_Serial_Number" class="mw-redirect" title="International Standard Serial Number">ISSN</a> <a rel="nofollow" class="external text" href="http://worldcat.org/issn/1440-2807">1440-2807</a>. <span class="reference-accessdate"><small>(Noiz kontsultatua: 2021-05-28)</small></span></span>.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Kanpo_estekak">Kanpo estekak</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=NGC_sistema&veaction=edit&section=8" title="Aldatu atal hau: «Kanpo estekak»" class="mw-editsection-visualeditor"><span>aldatu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=NGC_sistema&action=edit&section=8" title="Edit section's source code: Kanpo estekak"><span>aldatu iturburu kodea</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="clear:both;"></div><style data-mw-deduplicate="TemplateStyles:r7786466">.mw-parser-output .mw-authority-control{margin-top:1.5em}.mw-parser-output .mw-authority-control .navbox hr:last-child{display:none}.mw-parser-output .mw-authority-control .navbox+.mw-mf-linked-projects{display:none}.mw-parser-output .mw-authority-control,.mw-parser-output .mw-mf-linked-projects{border:1px solid #a2a9b1;font-size:88%}.mw-parser-output .mw-authority-control .mw-mf-linked-projects ul li{margin-bottom:0}</style><div class="mw-authority-control"><div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r9236167">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output 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