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href="https://ar.wikipedia.org/wiki/%D8%AD%D8%B2%D8%A7%D9%85_%D8%BA%D9%88%D9%84%D8%AF" title="حزام غولد – Arabic" lang="ar" hreflang="ar" data-title="حزام غولد" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9F%D0%BE%D1%8F%D1%81_%D0%93%D1%83%D0%BB%D0%B4%D0%B0" title="Пояс Гулда – Belarusian" lang="be" hreflang="be" data-title="Пояс Гулда" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9F%D0%BE%D1%8F%D1%81_%D0%BD%D0%B0_%D0%93%D1%83%D0%BB%D0%B4" title="Пояс на Гулд – Bulgarian" lang="bg" hreflang="bg" data-title="Пояс на Гулд" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Gouldov_pojas" title="Gouldov pojas – Bosnian" lang="bs" hreflang="bs" data-title="Gouldov pojas" data-language-autonym="Bosanski" data-language-local-name="Bosnian" 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/Cintur%C3%B3_de_Gould" title="Cinturó de Gould – Catalan" lang="ca" hreflang="ca" data-title="Cinturó de Gould" 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/Gould%C5%AFv_p%C3%A1s" title="Gouldův pás – Czech" lang="cs" hreflang="cs" data-title="Gouldův pás" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Gouldscher_G%C3%BCrtel" title="Gouldscher Gürtel – German" lang="de" hreflang="de" data-title="Gouldscher Gürtel" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%96%CF%8E%CE%BD%CE%B7_%CE%93%CE%BA%CE%BF%CF%85%CE%BB%CE%BD%CF%84" title="Ζώνη Γκουλντ – Greek" lang="el" hreflang="el" data-title="Ζώνη Γκουλντ" 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/Cintur%C3%B3n_de_Gould" title="Cinturón de Gould – Spanish" lang="es" hreflang="es" data-title="Cinturón de Gould" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%A9%D9%85%D8%B1%D8%A8%D9%86%D8%AF_%DA%AF%D9%88%D9%84%D8%AF" title="کمربند گولد – Persian" lang="fa" hreflang="fa" data-title="کمربند گولد" 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/Ceinture_de_Gould" title="Ceinture de Gould – French" lang="fr" hreflang="fr" data-title="Ceinture de Gould" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B5%B4%EB%93%9C_%EB%8C%80" title="굴드 대 – Korean" lang="ko" hreflang="ko" data-title="굴드 대" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Sabuk_Gould" title="Sabuk Gould – Indonesian" lang="id" hreflang="id" data-title="Sabuk Gould" 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-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Cintura_di_Gould" title="Cintura di Gould – Italian" lang="it" hreflang="it" data-title="Cintura di Gould" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%93%D1%83%D0%BB%D0%B4%D0%BE%D0%B2_%D0%9F%D0%BE%D1%98%D0%B0%D1%81" title="Гулдов Појас – Macedonian" lang="mk" hreflang="mk" data-title="Гулдов Појас" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Lingkaran_Gould" title="Lingkaran Gould – Malay" lang="ms" hreflang="ms" data-title="Lingkaran Gould" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%82%E1%80%B1%E1%80%AB%E1%80%84%E1%80%BA%E1%80%B8_%E1%80%81%E1%80%AB%E1%80%B8%E1%80%95%E1%80%90%E1%80%BA" title="ဂေါင်း ခါးပတ် – Burmese" lang="my" hreflang="my" data-title="ဂေါင်း ခါးပတ်" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Burmese" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B0%E3%83%BC%E3%83%AB%E3%83%89%E3%83%BB%E3%83%99%E3%83%AB%E3%83%88" title="グールド・ベルト – Japanese" lang="ja" hreflang="ja" data-title="グールド・ベルト" 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-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Gould-beltet" title="Gould-beltet – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Gould-beltet" 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-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Pas_Goulda" title="Pas Goulda – Polish" lang="pl" hreflang="pl" data-title="Pas Goulda" 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/Cintur%C3%A3o_de_Gould" title="Cinturão de Gould – Portuguese" lang="pt" hreflang="pt" data-title="Cinturão de Gould" 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/Centura_Gould" title="Centura Gould – Romanian" lang="ro" hreflang="ro" data-title="Centura Gould" 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%9F%D0%BE%D1%8F%D1%81_%D0%93%D1%83%D0%BB%D0%B4%D0%B0" title="Пояс Гулда – Russian" lang="ru" hreflang="ru" data-title="Пояс Гулда" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Gould_Belt" title="Gould Belt – Simple English" lang="en-simple" hreflang="en-simple" data-title="Gould Belt" 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/Gouldov_p%C3%A1s" title="Gouldov pás – Slovak" lang="sk" hreflang="sk" data-title="Gouldov pás" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%93%D1%83%D0%BB%D0%B4%D0%BE%D0%B2_%D0%BF%D0%BE%D1%98%D0%B0%D1%81" title="Гулдов појас – Serbian" lang="sr" hreflang="sr" data-title="Гулдов појас" 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-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Goulds_b%C3%A4lte" title="Goulds bälte – Swedish" lang="sv" hreflang="sv" data-title="Goulds bälte" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AF%82%E0%AE%B2%E0%AF%8D%E0%AE%9F%E0%AF%81_%E0%AE%AA%E0%AE%9F%E0%AF%8D%E0%AE%9F%E0%AF%88" title="கூல்டு பட்டை – Tamil" lang="ta" hreflang="ta" data-title="கூல்டு பட்டை" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Gould_Ku%C5%9Fa%C4%9F%C4%B1" title="Gould Kuşağı – Turkish" lang="tr" hreflang="tr" data-title="Gould Kuşağı" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9F%D0%BE%D1%8F%D1%81_%D0%93%D1%83%D0%BB%D0%B4%D0%B0" title="Пояс Гулда – Ukrainian" lang="uk" hreflang="uk" data-title="Пояс Гулда" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/V%C3%A0nh_%C4%91ai_Gould" title="Vành đai Gould – Vietnamese" lang="vi" hreflang="vi" data-title="Vành đai Gould" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamese" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%8F%A4%E5%B0%94%E5%BE%B7%E5%B8%A6" title="古尔德带 – Wu" lang="wuu" hreflang="wuu" data-title="古尔德带" data-language-autonym="吴语" data-language-local-name="Wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%8F%A4%E7%88%BE%E5%BE%B7%E5%B8%B6" title="古爾德帶 – Chinese" lang="zh" hreflang="zh" data-title="古爾德帶" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q24469#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div 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href="/wiki/File:Galaxymap.com,_map_of_the_solar_neighbourhood_800_parsecs_(2020).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Galaxymap.com%2C_map_of_the_solar_neighbourhood_800_parsecs_%282020%29.jpg/390px-Galaxymap.com%2C_map_of_the_solar_neighbourhood_800_parsecs_%282020%29.jpg" decoding="async" width="390" height="549" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Galaxymap.com%2C_map_of_the_solar_neighbourhood_800_parsecs_%282020%29.jpg/585px-Galaxymap.com%2C_map_of_the_solar_neighbourhood_800_parsecs_%282020%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Galaxymap.com%2C_map_of_the_solar_neighbourhood_800_parsecs_%282020%29.jpg/780px-Galaxymap.com%2C_map_of_the_solar_neighbourhood_800_parsecs_%282020%29.jpg 2x" data-file-width="10000" data-file-height="14088" /></a><figcaption>Mesh map of the inner Gould Belt created from <a href="/wiki/Gaia_(spacecraft)" title="Gaia (spacecraft)">Gaia observatory</a> data</figcaption></figure> <p>The <b>Gould Belt</b> is a local ring of stars in the <a href="/wiki/Milky_Way" title="Milky Way">Milky Way</a>, tilted away from the <a href="/wiki/Galactic_plane" title="Galactic plane">galactic plane</a> by about 16–20 degrees, first reported by <a href="/wiki/John_Herschel" title="John Herschel">John Herschel</a> and <a href="/wiki/Benjamin_Apthorp_Gould" title="Benjamin Apthorp Gould">Benjamin Gould</a> in the 19th century.<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> It contains many <a href="/wiki/OB_star" title="OB star">O- and B-type stars</a>, and many of the nearest <a href="/wiki/Star-forming_region" class="mw-redirect" title="Star-forming region">star-forming regions</a> of the local <a href="/wiki/Orion_Arm" title="Orion Arm">Orion Arm</a>, to which the <a href="/wiki/Sun" title="Sun">Sun</a> belongs. The relative proximity of these star-forming regions spurred the <a href="/wiki/Gould_Belt_Survey" title="Gould Belt Survey">Gould Belt Survey</a> project to determine what caused them. </p><p>It was long speculated that the belt was a physical structure in the galactic disk, but data from the <a href="/wiki/Gaia_(spacecraft)" title="Gaia (spacecraft)">Gaia survey</a> indicate that several of its star-forming regions belong instead to the separate <a href="/wiki/Radcliffe_wave" title="Radcliffe wave">Radcliffe wave</a> and <i>Split</i> linear structures in the Orion Arm, and that the circular appearance of the belt results mostly from the projection of these structures onto the <a href="/wiki/Celestial_sphere" title="Celestial sphere">celestial sphere</a>.<sup id="cite_ref-Alves_Zucker_Goodman_Speagle_2020_2-0" class="reference"><a href="#cite_note-Alves_Zucker_Goodman_Speagle_2020-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The belt contains bright, young stars which formed about 30 to 50 million years ago in several constellations.<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><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> These lie along a <a href="/wiki/Great_circle" title="Great circle">great circle</a> slightly inclined to the Milky Way. including (in order from Taurus): <a href="/wiki/Taurus_(constellation)" title="Taurus (constellation)">Taurus</a>, <a href="/wiki/Perseus_(constellation)" title="Perseus (constellation)">Perseus</a>, <a href="/wiki/Cepheus_(constellation)" title="Cepheus (constellation)">Cepheus</a>, <a href="/wiki/Lacerta" title="Lacerta">Lacerta</a>, <a href="/wiki/Scorpius" title="Scorpius">Scorpius</a>, <a href="/wiki/Lupus_(constellation)" title="Lupus (constellation)">Lupus</a>, southern <a href="/wiki/Centaurus" title="Centaurus">Centaurus</a>, <a href="/wiki/Crux_(constellation)" class="mw-redirect" title="Crux (constellation)">Crux</a> (the Southern Cross), <a href="/wiki/Carina_(constellation)" title="Carina (constellation)">Carina</a>, <a href="/wiki/Vela_(constellation)" title="Vela (constellation)">Vela</a>, <a href="/wiki/Puppis" title="Puppis">Puppis</a>, <a href="/wiki/Canis_Major" title="Canis Major">Canis Major</a>, and <a href="/wiki/Orion_(constellation)" title="Orion (constellation)">Orion</a>. </p><p><a href="/wiki/Star-forming_region" class="mw-redirect" title="Star-forming region">Star-forming regions</a> and <a href="/wiki/Stellar_kinematics#OB_associations" title="Stellar kinematics">OB associations</a> that make up this region include the <a href="/wiki/Orion_Nebula" title="Orion Nebula">Orion Nebula</a> and the Orion molecular clouds, the <a href="/wiki/Scorpius%E2%80%93Centaurus_association" title="Scorpius–Centaurus association">Scorpius–Centaurus OB association</a>, Cepheus OB2, Perseus OB2, and the <a href="/wiki/Taurus_molecular_cloud" title="Taurus molecular cloud">Taurus–Auriga molecular clouds</a>. The Serpens molecular cloud containing star-forming regions <a href="/wiki/Westerhout_40" title="Westerhout 40">W40</a> and <a href="/wiki/Serpens_south" class="mw-redirect" title="Serpens south">Serpens south</a> is often included in Gould Belt surveys, but is not formally part of the Gould Belt due to its greater distance. </p><p>A theory proposed around 2009 suggests that the Gould Belt formed about 30 million years ago when a blob of <a href="/wiki/Dark_matter" title="Dark matter">dark matter</a> collided with the <a href="/wiki/Molecular_cloud" title="Molecular cloud">molecular cloud</a> in our region. There is also evidence for similar Gould belts in other galaxies.<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-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <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=Gould_Belt&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 30em;"> <ul><li><a href="/wiki/Local_Bubble" title="Local Bubble">Local Bubble</a> – Cavity in the interstellar medium which contains the Local Interstellar Cloud</li> <li><a href="/wiki/Local_Interstellar_Cloud" title="Local Interstellar Cloud">Local Interstellar Cloud</a> – Interstellar cloud in the Milky Way Galaxy</li> <li><a href="/wiki/Orion_Arm" title="Orion Arm">Orion Arm</a> – Minor spiral arm of the Milky Way galaxy; contains the Solar System</li> <li><a href="/wiki/Perseus_Arm" title="Perseus Arm">Perseus Arm</a> – One of two major spiral arms of the Milky Way galaxy</li> <li><a href="/wiki/Radcliffe_wave" title="Radcliffe wave">Radcliffe wave</a></li></ul> </div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gould_Belt&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></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="CITEREFKirk2013" class="citation journal cs1">Kirk, J. M.; et al. (21 June 2013). <a rel="nofollow" class="external text" href="https://academic.oup.com/mnras/article/432/2/1424/1027470#91770027">"First results from the Herschel Gould Belt Survey in Taurus"</a>. <i>Monthly Notices of the Royal Astronomical Society</i>. <b>432</b> (2): 1424–1433. <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/1304.4098">1304.4098</a></span>. <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%2Fstt561">10.1093/mnras/stt561</a></span><span class="reference-accessdate">. Retrieved <span class="nowrap">28 January</span> 2023</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=First+results+from+the+Herschel+Gould+Belt+Survey+in+Taurus&rft.volume=432&rft.issue=2&rft.pages=1424-1433&rft.date=2013-06-21&rft_id=info%3Aarxiv%2F1304.4098&rft_id=info%3Adoi%2F10.1093%2Fmnras%2Fstt561&rft.aulast=Kirk&rft.aufirst=J.+M.&rft_id=https%3A%2F%2Facademic.oup.com%2Fmnras%2Farticle%2F432%2F2%2F1424%2F1027470%2391770027&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGould+Belt" class="Z3988"></span></span> </li> <li id="cite_note-Alves_Zucker_Goodman_Speagle_2020-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-Alves_Zucker_Goodman_Speagle_2020_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAlvesZuckerGoodmanSpeagle2020" class="citation journal cs1">Alves, João; Zucker, Catherine; Goodman, Alyssa A.; Speagle, Joshua S.; Meingast, Stefan; Robitaille, Thomas; Finkbeiner, Douglas P.; Schlafly, Edward F.; Green, Gregory M. (23 January 2020). "A Galactic-scale gas wave in the Solar Neighborhood". <i>Nature</i>. <b>578</b> (7794): 237–239. <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/2001.08748v1">2001.08748v1</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/2020Natur.578..237A">2020Natur.578..237A</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1038%2Fs41586-019-1874-z">10.1038/s41586-019-1874-z</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/31910431">31910431</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:256822920">256822920</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Nature&rft.atitle=A+Galactic-scale+gas+wave+in+the+Solar+Neighborhood&rft.volume=578&rft.issue=7794&rft.pages=237-239&rft.date=2020-01-23&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A256822920%23id-name%3DS2CID&rft_id=info%3Abibcode%2F2020Natur.578..237A&rft_id=info%3Aarxiv%2F2001.08748v1&rft_id=info%3Apmid%2F31910431&rft_id=info%3Adoi%2F10.1038%2Fs41586-019-1874-z&rft.aulast=Alves&rft.aufirst=Jo%C3%A3o&rft.au=Zucker%2C+Catherine&rft.au=Goodman%2C+Alyssa+A.&rft.au=Speagle%2C+Joshua+S.&rft.au=Meingast%2C+Stefan&rft.au=Robitaille%2C+Thomas&rft.au=Finkbeiner%2C+Douglas+P.&rft.au=Schlafly%2C+Edward+F.&rft.au=Green%2C+Gregory+M.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGould+Belt" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSir_Patrick_Moore2002" class="citation book cs1"><a href="/wiki/Patrick_Moore" title="Patrick Moore">Sir Patrick Moore</a>, ed. (2002) [1987]. <i>Astronomy Encyclopædia</i> (Revised ed.). Great Britain: Philip's. p. 164.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Astronomy+Encyclop%C3%A6dia&rft.place=Great+Britain&rft.pages=164&rft.edition=Revised&rft.pub=Philip%27s&rft.date=2002&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGould+Belt" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</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://web.archive.org/web/20030804044603/http://www.rssd.esa.int/SA-general/Projects/GAIA_files/LATEX2HTML/node29.html">"The Gould Belt"</a>. <i>The GAIA Study Report</i>. Archived from <a rel="nofollow" class="external text" href="http://www.rssd.esa.int/SA-general/Projects/GAIA_files/LATEX2HTML/node29.html">the original</a> on 2003-08-04<span class="reference-accessdate">. Retrieved <span class="nowrap">2006-07-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+GAIA+Study+Report&rft.atitle=The+Gould+Belt&rft_id=http%3A%2F%2Fwww.rssd.esa.int%2FSA-general%2FProjects%2FGAIA_files%2FLATEX2HTML%2Fnode29.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGould+Belt" class="Z3988"></span></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"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation encyclopaedia cs1"><a rel="nofollow" class="external text" href="http://daviddarling.info/encyclopedia/G/GouldBelt.html">"Gould Belt"</a>. <i>The Encyclopedia of Astrobiology Astronomy and Spaceflight</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2006-07-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Gould+Belt&rft.btitle=The+Encyclopedia+of+Astrobiology+Astronomy+and+Spaceflight&rft_id=http%3A%2F%2Fdaviddarling.info%2Fencyclopedia%2FG%2FGouldBelt.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGould+Belt" class="Z3988"></span></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"><a rel="nofollow" class="external text" href="https://www.newscientist.com/article/mg20427350.900-orions-dark-secret-violence-shaped-the-night-sky.html?full=true">"Orion's dark secret: Violence shaped the night sky"</a>, <a href="/wiki/New_Scientist" title="New Scientist">New Scientist</a>, 21 Nov. 2009, pp. 42–5.</span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBekki2009" class="citation journal cs1">Bekki, Kenji (2009). <a rel="nofollow" class="external text" href="https://doi.org/10.1111%2Fj.1745-3933.2009.00702.x">"Dark impact and galactic star formation: origin of the Gould belt"</a>. <i><a href="/wiki/Monthly_Notices_of_the_Royal_Astronomical_Society:_Letters" class="mw-redirect" title="Monthly Notices of the Royal Astronomical Society: Letters">Monthly Notices of the Royal Astronomical Society: Letters</a></i>. <b>398</b> (1): L36–L40. <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/0906.5117">0906.5117</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/2009MNRAS.398L..36B">2009MNRAS.398L..36B</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/10.1111%2Fj.1745-3933.2009.00702.x">10.1111/j.1745-3933.2009.00702.x</a></span>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:16173683">16173683</a>.</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%3A+Letters&rft.atitle=Dark+impact+and+galactic+star+formation%3A+origin+of+the+Gould+belt&rft.volume=398&rft.issue=1&rft.pages=L36-L40&rft.date=2009&rft_id=info%3Aarxiv%2F0906.5117&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A16173683%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1111%2Fj.1745-3933.2009.00702.x&rft_id=info%3Abibcode%2F2009MNRAS.398L..36B&rft.aulast=Bekki&rft.aufirst=Kenji&rft_id=https%3A%2F%2Fdoi.org%2F10.1111%252Fj.1745-3933.2009.00702.x&rfr_id=info%3Asid%2Fen.wikipedia.org%3AGould+Belt" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gould_Belt&action=edit&section=3" title="Edit section: External 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srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Gould_Belt" class="extiw" title="commons:Category:Gould Belt">Gould Belt</a></span>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="http://galaxymap.org/detail_maps/gould.html">Map of the Gould Belt</a></li> <li><a rel="nofollow" class="external text" href="http://www.eso.org/~fcomeron/gb/Perrot.pdf">3D evolution of the Gould Belt</a></li> <li><a rel="nofollow" class="external text" href="http://www.cfa.harvard.edu/gouldbelt/index.html">The Spitzer Gould Belt Survey</a></li></ul> <div class="navbox-styles"><style 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class="navbox-group" style="width:1%">Included</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><a href="/wiki/Earth" title="Earth">Earth</a> <span style="font-size:120%">→</span> <a href="/wiki/Solar_System" title="Solar System">Solar System</a> <span style="font-size:120%">→</span> <a href="/wiki/Local_Interstellar_Cloud" title="Local Interstellar Cloud">Local Interstellar Cloud</a> <span style="font-size:120%">→</span> <a href="/wiki/Local_Bubble" title="Local Bubble">Local Bubble</a> <span style="font-size:120%">→</span> <a class="mw-selflink selflink">Gould Belt</a> <span style="font-size:120%">→</span> <a href="/wiki/Orion_Arm" title="Orion Arm">Orion Arm</a> <span style="font-size:120%">→</span> <a href="/wiki/Milky_Way" title="Milky Way">Milky Way</a> <span style="font-size:120%">→</span> <a href="/wiki/Satellite_galaxies_of_the_Milky_Way" title="Satellite galaxies of the Milky Way">Milky Way subgroup</a> <span style="font-size:120%">→</span> <a href="/wiki/Local_Group" title="Local Group">Local Group</a> <span style="font-size:120%">→</span> <a href="/wiki/Local_Sheet" title="Local Sheet">Local Sheet</a> <span style="font-size:120%">→</span> <a href="/wiki/Virgo_Supercluster" title="Virgo Supercluster">Virgo Supercluster</a> <span style="font-size:120%">→</span> <a href="/wiki/Laniakea_Supercluster" title="Laniakea Supercluster">Laniakea Supercluster</a> <span style="font-size:120%">→</span> <a href="/wiki/Local_Hole" title="Local Hole">Local Hole</a> <span style="font-size:120%">→</span> <a href="/wiki/Observable_universe" title="Observable universe">Observable universe</a> <span style="font-size:120%">→</span> <a href="/wiki/Universe" title="Universe">Universe</a><br /><span style="font-size:85%;">Each arrow (<span style="font-size:120%">→</span>) may be read as "within" or "part of".</span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</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/Cosmic_View" title="Cosmic View"><i>Cosmic View</i> (1957 book)</a></li> <li><a href="/wiki/To_the_Moon_and_Beyond" title="To the Moon and Beyond"><i>To the Moon and Beyond</i> (1964 film)</a></li> <li><a href="/wiki/Cosmic_Zoom" title="Cosmic Zoom"><i>Cosmic Zoom</i> (1968 film)</a></li> <li><a href="/wiki/Powers_of_Ten_(film)" title="Powers of Ten (film)"><i>Powers of Ten</i> (1968 and 1977 films)</a></li> <li><a href="/wiki/Cosmic_Voyage_(1996_film)" title="Cosmic Voyage (1996 film)"><i>Cosmic Voyage</i> (1996 documentary)</a></li> <li><a href="/wiki/Cosmic_Eye" title="Cosmic Eye"><i>Cosmic Eye</i> (2012)</a></li> <li><a href="/wiki/History_of_the_center_of_the_Universe" title="History of the center of the Universe">History of the center of the Universe</a></li> <li><a href="/wiki/Order_of_magnitude" title="Order of magnitude">Order of magnitude</a></li> <li><a href="/wiki/Pisces%E2%80%93Cetus_Supercluster_Complex" title="Pisces–Cetus Supercluster Complex">Pisces–Cetus Supercluster Complex</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><b><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Symbol_portal_class.svg" class="mw-file-description" title="Portal"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/16px-Symbol_portal_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/23px-Symbol_portal_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/31px-Symbol_portal_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span> <a href="/wiki/Portal:Astronomy" title="Portal:Astronomy">Astronomy portal</a></b></li> <li><b><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Symbol_portal_class.svg" class="mw-file-description" title="Portal"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/16px-Symbol_portal_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/23px-Symbol_portal_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/31px-Symbol_portal_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span> <a href="/wiki/Portal:Space" class="mw-redirect" title="Portal:Space">Space portal</a></b></li></ul> </div></td></tr></tbody></table></div> <style data-mw-deduplicate="TemplateStyles:r1130092004">.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;justify-content:center;align-items:baseline}.mw-parser-output .portal-bar-bordered{padding:0 2em;background-color:#fdfdfd;border:1px solid #a2a9b1;clear:both;margin:1em auto 0}.mw-parser-output .portal-bar-related{font-size:100%;justify-content:flex-start}.mw-parser-output .portal-bar-unbordered{padding:0 1.7em;margin-left:0}.mw-parser-output .portal-bar-header{margin:0 1em 0 0.5em;flex:0 0 auto;min-height:24px}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;flex:0 1 auto;padding:0.15em 0;column-gap:1em;align-items:baseline;margin:0;list-style:none}.mw-parser-output .portal-bar-content-related{margin:0;list-style:none}.mw-parser-output .portal-bar-item{display:inline-block;margin:0.15em 0.2em;min-height:24px;line-height:24px}@media screen and (max-width:768px){.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;flex-flow:column wrap;align-items:baseline}.mw-parser-output .portal-bar-header{text-align:center;flex:0;padding-left:0.5em;margin:0 auto}.mw-parser-output .portal-bar-related{font-size:100%;align-items:flex-start}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;align-items:center;flex:0;column-gap:1em;border-top:1px solid #a2a9b1;margin:0 auto;list-style:none}.mw-parser-output .portal-bar-content-related{border-top:none;margin:0;list-style:none}}.mw-parser-output .navbox+link+.portal-bar,.mw-parser-output .navbox+style+.portal-bar,.mw-parser-output .navbox+link+.portal-bar-bordered,.mw-parser-output .navbox+style+.portal-bar-bordered,.mw-parser-output .sister-bar+link+.portal-bar,.mw-parser-output .sister-bar+style+.portal-bar,.mw-parser-output .portal-bar+.navbox-styles+.navbox,.mw-parser-output .portal-bar+.navbox-styles+.sister-bar{margin-top:-1px}</style><div class="portal-bar noprint metadata noviewer portal-bar-bordered" role="navigation" aria-label="Portals"><span class="portal-bar-header"><a href="/wiki/Wikipedia:Contents/Portals" title="Wikipedia:Contents/Portals">Portals</a>:</span><ul class="portal-bar-content"><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/19px-Crab_Nebula.jpg" decoding="async" width="19" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/29px-Crab_Nebula.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/38px-Crab_Nebula.jpg 2x" data-file-width="3864" data-file-height="3864" /></span></span> </span><a href="/wiki/Portal:Astronomy" title="Portal:Astronomy">Astronomy</a></li><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><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" 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