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.sky-coordinates-display{font-size:85%}</style><span class="sky-coordinates-display plainlinks nourlexpansion"><a href="/wiki/Celestial_coordinate_system" class="mw-redirect" title="Celestial coordinate system">Coordinates</a>: <span typeof="mw:File"><span title="Sky map"><img alt="Sky map" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/20px-Jupiter_and_moon.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/30px-Jupiter_and_moon.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/40px-Jupiter_and_moon.png 2x" data-file-width="128" data-file-height="128" /></span></span> <a rel="nofollow" class="external text" href="http://www.wikisky.org/?ra=9.14725&de=-9.6366666666667&zoom=10&show_grid=1&show_constellation_lines=1&show_constellation_boundaries=1&show_const_names=1&show_galaxies=1&img_source=IMG_all">09<sup>h</sup> 08<sup>m</sup> 50.1<sup>s</sup>, −09° 38′ 12″</a></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Galaxy cluster</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><tbody><tr><th colspan="2" class="infobox-above" style="background:inherit;"><a href="/wiki/Abell_catalogue" title="Abell catalogue">Abell</a> 754</th></tr><tr><th colspan="2" class="infobox-header" style="background: #EBE046;">Observation data (<a href="/wiki/Epoch_(astronomy)" title="Epoch (astronomy)">Epoch</a> <a href="/wiki/Epoch_(astronomy)#Julian_years_and_J2000" title="Epoch (astronomy)">J2000</a>)</th></tr><tr><th scope="row" class="infobox-label" style="background:inherit;"><a href="/wiki/Constellation" title="Constellation">Constellation</a>(s)</th><td class="infobox-data"><a href="/wiki/Hydra_(constellation)" title="Hydra (constellation)">Hydra</a></td></tr><tr><th scope="row" class="infobox-label" style="background:inherit;"><a href="/wiki/Right_ascension" title="Right ascension">Right ascension</a></th><td class="infobox-data"><span class="nowrap">09<sup>h</sup> 08<sup>m</sup> 50.1<sup>s</sup></span><sup id="cite_ref-NED_1-0" class="reference"><a href="#cite_note-NED-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background:inherit;"><a href="/wiki/Declination" title="Declination">Declination</a></th><td class="infobox-data">−09° 38′ 12″<sup id="cite_ref-NED_1-1" class="reference"><a href="#cite_note-NED-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background:inherit;"><a href="/wiki/Abell_catalogue" title="Abell catalogue">Richness class</a></th><td class="infobox-data">2<sup id="cite_ref-ACO_2-0" class="reference"><a href="#cite_note-ACO-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background:inherit;"><a href="/wiki/Bautz%E2%80%93Morgan_classification" title="Bautz–Morgan classification">Bautz–Morgan classification</a></th><td class="infobox-data">I-II<sup id="cite_ref-ACO_2-1" class="reference"><a href="#cite_note-ACO-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background:inherit;"><a href="/wiki/Redshift" title="Redshift">Redshift</a></th><td class="infobox-data">0.5420 (16 249 km/s)<sup id="cite_ref-NED_1-2" class="reference"><a href="#cite_note-NED-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background:inherit;"><a href="/wiki/Cosmic_distance_ladder" title="Cosmic distance ladder">Distance</a></th><td class="infobox-data">233 <a href="/wiki/Parsec#Megaparsecs_and_gigaparsecs" title="Parsec">Mpc</a> (760 <a href="/wiki/Light-year#Definitions" title="Light-year">Mly</a>) <span class="nowrap"><i>h</i><small><span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1.2em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline">−1</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">0.705</sub></span></span></small></span> <sup id="cite_ref-NED_1-3" class="reference"><a href="#cite_note-NED-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="background:inherit;">X-ray <a href="/wiki/Flux" title="Flux">flux</a></th><td class="infobox-data">4.35<span style="margin:0 .15em 0 .25em">×</span>10<sup><span class="nowrap"><span data-sort-value="2998890000000000000♠"></span>−11</span></sup> <a href="/wiki/Erg" title="Erg">erg</a> s<sup>−1</sup> cm<sup>−2</sup> (0.5–2 <a href="/wiki/Electron_volt" class="mw-redirect" title="Electron volt">keV</a>)<sup id="cite_ref-NED_1-4" class="reference"><a href="#cite_note-NED-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr></tbody></table> <p><b>Abell 754</b> is a <a href="/wiki/Galaxy_cluster" title="Galaxy cluster">galaxy cluster</a> in the <a href="/wiki/Constellation" title="Constellation">constellation</a> <a href="/wiki/Hydra_(constellation)" title="Hydra (constellation)">Hydra</a> that was formed from the collision of two smaller clusters. This collision, which began about 300 million years ago, is ongoing, and the system is still disturbed. Eventually, the cluster will reach a level of equilibrium in a few billion years. </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=Abell_754&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Abell_catalogue" title="Abell catalogue">Abell catalogue</a></li> <li><a href="/wiki/List_of_Abell_clusters" title="List of Abell clusters">List of Abell clusters</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Abell_754&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"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-NED-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-NED_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-NED_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-NED_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-NED_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-NED_1-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=Abell+754&extend=no">"NED results for object ABELL 0754"</a>. NASA/IPAC Extragalactic Database (NED)<span class="reference-accessdate">. Retrieved <span class="nowrap">March 15,</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=NED+results+for+object+ABELL+0754&rft.pub=NASA%2FIPAC+Extragalactic+Database+%28NED%29&rft_id=http%3A%2F%2Fned.ipac.caltech.edu%2Fcgi-bin%2Fnph-objsearch%3Fobjname%3DAbell%2B754%26extend%3Dno&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAbell+754" class="Z3988"></span></span> </li> <li id="cite_note-ACO-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-ACO_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-ACO_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAbellCorwinOlowin1989" class="citation journal cs1"><a href="/wiki/George_O._Abell" title="George O. Abell">Abell, George O.</a>; <a href="/w/index.php?title=Harold_G._Corwin&action=edit&redlink=1" class="new" title="Harold G. Corwin (page does not exist)">Corwin, Harold G. Jr.</a>; <a href="/w/index.php?title=Ronald_P._Olowin&action=edit&redlink=1" class="new" title="Ronald P. Olowin (page does not exist)">Olowin, Ronald P.</a> (May 1989). <a rel="nofollow" class="external text" href="http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1989ApJS...70....1A&page_ind=0&epage_ind=137&type=PRINTER&data_type=PDF_HIGH&email=&emailsize=500&emailsplit=YES&send=GET&verified=YES">"A catalog of rich clusters of galaxies"</a> <span class="cs1-format">(PDF)</span>. <i>Astrophysical Journal Supplement Series</i>. <b>70</b> (May 1989): <span class="nowrap">1–</span>138. <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/1989ApJS...70....1A">1989ApJS...70....1A</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F191333">10.1086/191333</a></span>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0067-0049">0067-0049</a><span class="reference-accessdate">. Retrieved <span class="nowrap">March 12,</span> 2012</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astrophysical+Journal+Supplement+Series&rft.atitle=A+catalog+of+rich+clusters+of+galaxies&rft.volume=70&rft.issue=May+1989&rft.pages=%3Cspan+class%3D%22nowrap%22%3E1-%3C%2Fspan%3E138&rft.date=1989-05&rft.issn=0067-0049&rft_id=info%3Adoi%2F10.1086%2F191333&rft_id=info%3Abibcode%2F1989ApJS...70....1A&rft.aulast=Abell&rft.aufirst=George+O.&rft.au=Corwin%2C+Harold+G.+Jr.&rft.au=Olowin%2C+Ronald+P.&rft_id=http%3A%2F%2Farticles.adsabs.harvard.edu%2Fcgi-bin%2Fnph-iarticle_query%3Fbibcode%3D1989ApJS...70....1A%26page_ind%3D0%26epage_ind%3D137%26type%3DPRINTER%26data_type%3DPDF_HIGH%26email%3D%26emailsize%3D500%26emailsplit%3DYES%26send%3DGET%26verified%3DYES&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAbell+754" class="Z3988"></span></span> </li> </ol></div></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=Abell_754&action=edit&section=3" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://www.nasa.gov/centers/goddard/news/topstory/2004/0831galaxymerger.html">MASSIVE MERGER OF GALAXIES IS THE MOST POWERFUL ON RECORD (NASA)</a></li> <li><a rel="nofollow" class="external text" href="https://www.theregister.co.uk/2004/09/24/galactic_super_prang/">Galaxies rent asunder in huge cosmic collision</a></li></ul> <p><br /> </p> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output 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href="/w/index.php?title=Abell_749&action=edit&redlink=1" class="new" title="Abell 749 (page does not exist)">Abell 749</a></li> <li><a href="/w/index.php?title=Abell_750&action=edit&redlink=1" class="new" title="Abell 750 (page does not exist)">Abell 750</a></li> <li><a href="/w/index.php?title=Abell_751&action=edit&redlink=1" class="new" title="Abell 751 (page does not exist)">Abell 751</a></li> <li><a href="/w/index.php?title=Abell_752&action=edit&redlink=1" class="new" title="Abell 752 (page does not exist)">Abell 752</a></li> <li><a href="/w/index.php?title=Abell_753&action=edit&redlink=1" class="new" title="Abell 753 (page does not exist)">Abell 753</a></li> <li><b>Abell 754</b></li> <li><a href="/w/index.php?title=Abell_755&action=edit&redlink=1" class="new" title="Abell 755 (page does not exist)">Abell 755</a></li> <li><a href="/w/index.php?title=Abell_756&action=edit&redlink=1" class="new" title="Abell 756 (page does not exist)">Abell 756</a></li> <li><a href="/w/index.php?title=Abell_757&action=edit&redlink=1" class="new" title="Abell 757 (page does not exist)">Abell 757</a></li> <li><a href="/w/index.php?title=Abell_758&action=edit&redlink=1" class="new" title="Abell 758 (page does not exist)">Abell 758</a></li> <li><a href="/w/index.php?title=Abell_759&action=edit&redlink=1" class="new" title="Abell 759 (page does not exist)">Abell 759</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Constellation_of_Hydra227" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Hydra_(constellation)" title="Template:Hydra (constellation)"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Hydra_(constellation)" title="Template talk:Hydra (constellation)"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Hydra_(constellation)" title="Special:EditPage/Template:Hydra (constellation)"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Constellation_of_Hydra227" style="font-size:114%;margin:0 4em"><a href="/wiki/Hydra_(constellation)" title="Hydra (constellation)">Constellation of Hydra</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><a href="/wiki/List_of_stars_in_Hydra" title="List of stars in Hydra">List of stars in Hydra</a></li> <li><a href="/wiki/Hydra_in_Chinese_astronomy" title="Hydra in Chinese astronomy">Hydra in Chinese astronomy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Star" title="Star">Stars</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Bayer_designation" title="Bayer designation">Bayer</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alphard" title="Alphard">α (Alphard)</a></li> <li><a href="/wiki/Beta_Hydrae" title="Beta Hydrae">β</a></li> <li><a href="/wiki/Gamma_Hydrae" title="Gamma Hydrae">γ</a></li> <li><a href="/wiki/Delta_Hydrae" title="Delta Hydrae">δ</a></li> <li><a href="/wiki/Epsilon_Hydrae" title="Epsilon Hydrae">ε (Ashlesha)</a></li> <li><a href="/wiki/Zeta_Hydrae" title="Zeta Hydrae">ζ</a></li> <li><a href="/wiki/Eta_Hydrae" title="Eta Hydrae">η</a></li> <li><a href="/wiki/Theta_Hydrae" title="Theta Hydrae">θ</a></li> <li><a href="/wiki/Iota_Hydrae" title="Iota Hydrae">ι (Ukdah)</a></li> <li><a href="/wiki/Kappa_Hydrae" title="Kappa Hydrae">κ</a></li> <li><a href="/wiki/Lambda_Hydrae" title="Lambda Hydrae">λ</a></li> <li><a href="/wiki/Mu_Hydrae" title="Mu Hydrae">μ</a></li> <li><a href="/wiki/Nu_Hydrae" title="Nu Hydrae">ν</a></li> <li><a href="/wiki/Xi_Hydrae" title="Xi Hydrae">ξ</a></li> <li><a href="/wiki/Omicron_Hydrae" title="Omicron Hydrae">ο</a></li> <li><a href="/wiki/Pi_Hydrae" title="Pi Hydrae">π</a></li> <li><a href="/wiki/Rho_Hydrae" title="Rho Hydrae">ρ</a></li> <li><a href="/wiki/Sigma_Hydrae" title="Sigma Hydrae">σ (Minchir)</a></li> <li><a href="/wiki/Tau1_Hydrae" title="Tau1 Hydrae">τ<sup>1</sup></a></li> <li><a href="/wiki/Tau2_Hydrae" title="Tau2 Hydrae">τ<sup>2</sup></a></li> <li><a href="/wiki/Upsilon1_Hydrae" title="Upsilon1 Hydrae">υ<sup>1</sup> (Zhang)</a></li> <li><a href="/wiki/Upsilon2_Hydrae" title="Upsilon2 Hydrae">υ<sup>2</sup></a></li> <li><a href="/wiki/Phi1_Hydrae" title="Phi1 Hydrae">φ<sup>1</sup></a></li> <li><a href="/wiki/Phi2_Hydrae" title="Phi2 Hydrae">φ<sup>2</sup></a></li> <li><a href="/wiki/Phi3_Hydrae" title="Phi3 Hydrae">φ<sup>3</sup></a></li> <li><a href="/wiki/Chi1_Hydrae" title="Chi1 Hydrae">χ<sup>1</sup></a></li> <li><a href="/wiki/Chi2_Hydrae" title="Chi2 Hydrae">χ<sup>2</sup></a></li> <li><a href="/wiki/Psi_Hydrae" title="Psi Hydrae">ψ</a></li> <li><a href="/wiki/Omega_Hydrae" title="Omega Hydrae">ω</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Flamsteed_designation" title="Flamsteed designation">Flamsteed</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/1_Hydrae" class="mw-redirect" title="1 Hydrae">1</a></li> <li><a href="/wiki/2_Hydrae" class="mw-redirect" title="2 Hydrae">2</a></li> <li><a href="/wiki/3_Hydrae" class="mw-redirect" title="3 Hydrae">3</a></li> <li><a href="/wiki/6_Hydrae" title="6 Hydrae">6 (a)</a></li> <li><a href="/wiki/9_Hydrae" title="9 Hydrae">9</a></li> <li><a href="/wiki/10_Hydrae" class="mw-redirect" title="10 Hydrae">10</a></li> <li><a href="/wiki/12_Hydrae" title="12 Hydrae">12 (D)</a></li> <li><a href="/wiki/14_Hydrae" class="mw-redirect" title="14 Hydrae">14</a></li> <li><a href="/wiki/15_Hydrae" class="mw-redirect" title="15 Hydrae">15</a></li> <li><a href="/wiki/17_Hydrae" class="mw-redirect" title="17 Hydrae">17</a></li> <li><a href="/wiki/19_Hydrae" class="mw-redirect" title="19 Hydrae">19</a></li> <li><a href="/wiki/20_Hydrae" class="mw-redirect" title="20 Hydrae">20</a></li> <li><a href="/wiki/21_Hydrae" class="mw-redirect" title="21 Hydrae">21</a></li> <li><a href="/wiki/23_Hydrae" class="mw-redirect" title="23 Hydrae">23</a></li> <li><a href="/wiki/24_Hydrae" class="mw-redirect" title="24 Hydrae">24</a></li> <li><a href="/wiki/25_Hydrae" class="mw-redirect" title="25 Hydrae">25</a></li> <li><a href="/wiki/26_Hydrae" title="26 Hydrae">26</a></li> <li><a href="/wiki/27_Hydrae" title="27 Hydrae">27 (P)</a></li> <li><a href="/wiki/28_Hydrae" class="mw-redirect" title="28 Hydrae">28</a></li> <li><a href="/wiki/29_Hydrae" class="mw-redirect" title="29 Hydrae">29</a></li> <li><a href="/wiki/33_Hydrae" class="mw-redirect" title="33 Hydrae">33 (A)</a></li> <li><a href="/wiki/34_Hydrae" class="mw-redirect" title="34 Hydrae">34</a></li> <li><a href="/wiki/37_Hydrae" class="mw-redirect" title="37 Hydrae">37</a></li> <li><a href="/wiki/44_Hydrae" class="mw-redirect" title="44 Hydrae">44</a></li> <li><a href="/wiki/47_Hydrae" class="mw-redirect" title="47 Hydrae">47</a></li> <li><a href="/wiki/48_Hydrae" class="mw-redirect" title="48 Hydrae">48</a></li> <li><a href="/wiki/50_Hydrae" class="mw-redirect" title="50 Hydrae">50</a></li> <li><a href="/wiki/51_Hydrae" title="51 Hydrae">51 (k)</a></li> <li><a href="/wiki/52_Hydrae" title="52 Hydrae">52 (l)</a></li> <li><a href="/wiki/54_Hydrae" class="mw-redirect" title="54 Hydrae">54 (m)</a></li> <li><a href="/wiki/55_Hydrae" class="mw-redirect" title="55 Hydrae">55</a></li> <li><a href="/wiki/56_Hydrae" class="mw-redirect" title="56 Hydrae">56</a></li> <li><a href="/wiki/57_Hydrae" class="mw-redirect" title="57 Hydrae">57</a></li> <li><a href="/wiki/58_Hydrae" title="58 Hydrae">58 (E)</a></li> <li><a href="/wiki/59_Hydrae" class="mw-redirect" title="59 Hydrae">59</a></li> <li><a href="/wiki/60_Hydrae" class="mw-redirect" title="60 Hydrae">60</a></li> <li><a href="/wiki/HD_93397" class="mw-redirect" title="HD 93397"><i>3 Crt</i> (b<sup>1</sup>)</a></li> <li><a href="/wiki/HD_94046" class="mw-redirect" title="HD 94046"><i>5 Crt</i> (b<sup>2</sup>)</a></li> <li><a href="/wiki/HD_94388" class="mw-redirect" title="HD 94388"><i>6 Crt</i> (b<sup>3</sup>)</a></li> <li><i><a href="/wiki/HD_96819" title="HD 96819">10 Crt</a></i></li> <li><a href="/wiki/17_Crateris" title="17 Crateris"><i>17 Crt</i> (N)</a></li> <li><i><a href="/wiki/HR_4458" title="HR 4458">20 Crt</a></i></li> <li><i><a href="/wiki/14_Librae" class="mw-redirect" title="14 Librae">14 Lib</a></i></li> <li><a href="/wiki/30_Monocerotis" class="mw-redirect" title="30 Monocerotis"><i>30 Mon</i> (C)</a></li> <li><a href="/wiki/F_Hydrae" title="F Hydrae"><i>31 Mon</i> (F)</a></li> <li><i><a href="/wiki/2_Sextantis" title="2 Sextantis">2 Sex</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Variable_star_designation" class="mw-redirect" title="Variable star designation">Variable</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/R_Hydrae" title="R Hydrae">R</a></li> <li><a href="/wiki/U_Hydrae" title="U Hydrae">U</a></li> <li><a href="/wiki/V_Hydrae" title="V Hydrae">V</a></li> <li><a href="/wiki/W_Hydrae" title="W Hydrae">W</a></li> <li><a href="/wiki/TW_Hydrae" title="TW Hydrae">TW</a></li> <li><a href="/wiki/EX_Hydrae" title="EX Hydrae">EX</a></li> <li><a href="/wiki/HS_Hydrae" title="HS Hydrae">HS</a></li> <li><a href="/wiki/KU_Hydrae" title="KU Hydrae">KU</a></li> <li><a href="/wiki/LQ_Hydrae" title="LQ Hydrae">LQ</a></li> <li><a href="/wiki/HD_92945" title="HD 92945">V419</a></li> <li><a href="/wiki/Kelu-1" title="Kelu-1">V421</a></li> <li><a href="/wiki/SSSPM_J0829-1309" class="mw-redirect" title="SSSPM J0829-1309">V434</a></li> <li><a href="/wiki/HD_70573" title="HD 70573">V478</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Bright_Star_Catalogue" title="Bright Star Catalogue">HR</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_72561" title="HD 72561">3378</a></li> <li><a href="/wiki/HD_76151" title="HD 76151">3538</a></li> <li><a href="/wiki/HD_81799" title="HD 81799">3749 (G)</a></li> <li><a href="/wiki/HD_81809" class="mw-redirect" title="HD 81809">3750</a></li> <li><a href="/wiki/HD_83953" title="HD 83953">3858 (I)</a></li> <li><a href="/wiki/HD_84117" title="HD 84117">3862</a></li> <li><a href="/wiki/HD_85859" title="HD 85859">3919</a></li> <li><a href="/wiki/HD_85951" title="HD 85951">3923 (Felis)</a></li> <li><a href="/wiki/HD_92036" title="HD 92036">4162</a></li> <li><a href="/wiki/HD_96700" title="HD 96700">4328</a></li> <li><a href="/wiki/HR_4339" title="HR 4339">4339</a></li> <li><a href="/wiki/HD_100307" title="HD 100307">4445</a></li> <li><a href="/wiki/HD_122430" title="HD 122430">5265</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Henry_Draper_Catalogue" title="Henry Draper Catalogue">HD</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_72659" title="HD 72659">72659</a></li> <li><a href="/wiki/HD_74156" title="HD 74156">74156</a></li> <li><a href="/wiki/HD_82943" title="HD 82943">82943</a></li> <li><a href="/wiki/HD_86226" title="HD 86226">86226</a></li> <li><a href="/wiki/HD_86264" title="HD 86264">86264</a></li> <li><a href="/wiki/HD_90156" title="HD 90156">90156</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Gliese_Catalogue_of_Nearby_Stars" title="Gliese Catalogue of Nearby Stars">Gliese</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gliese_328" title="Gliese 328">328</a></li> <li><a href="/wiki/Gliese_357" title="Gliese 357">357</a></li> <li><a href="/wiki/Gliese_433" title="Gliese 433">433</a></li> <li><a href="/wiki/Gliese_453" class="mw-redirect" title="Gliese 453">453</a></li> <li><a href="/wiki/GJ_3517" class="mw-redirect" title="GJ 3517">3517</a></li> <li><a href="/wiki/GJ_3634" title="GJ 3634">3634</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HE_1256-2738" title="HE 1256-2738">HE 1256-2738</a></li> <li><a href="/wiki/HE_1327-2326" title="HE 1327-2326">HE 1327-2326</a></li> <li><a href="/wiki/LHS_2065" title="LHS 2065">LHS 2065</a></li> <li><a href="/wiki/LHS_3003" class="mw-redirect" title="LHS 3003">LHS 3003</a></li> <li><a href="/wiki/LTT_3780" title="LTT 3780">LTT 3780</a></li> <li><a href="/wiki/2MASS_J11145133%E2%88%922618235" title="2MASS J11145133−2618235">2MASS 1114−2618</a></li> <li><a href="/wiki/WASP-25" title="WASP-25">WASP-25</a></li> <li><a href="/wiki/WASP-36" title="WASP-36">WASP-36</a></li> <li><a href="/wiki/WASP-84" title="WASP-84">WASP-84</a></li> <li><a href="/wiki/WISE_0855%E2%88%920714" title="WISE 0855−0714">WISE 0855−0714</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Star_cluster" title="Star cluster">Star clusters</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Open_cluster" title="Open cluster">Open</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Messier_48" title="Messier 48">Messier 48</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Globular_cluster" title="Globular cluster">Globular</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Messier_68" title="Messier 68">Messier 68</a></li> <li><a href="/wiki/NGC_5694" title="NGC 5694">NGC 5694</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nebula" title="Nebula">Nebulae</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Planetary30" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Planetary_nebula" title="Planetary nebula">Planetary</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abell_33" title="Abell 33">Abell 33</a></li> <li><a href="/wiki/Abell_35" title="Abell 35">Abell 35</a></li> <li><a href="/wiki/NGC_3242" title="NGC 3242">NGC 3242</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Galaxies" class="mw-redirect" title="Galaxies">Galaxies</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Messier_objects" class="mw-redirect" title="Messier objects">Messier</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Messier_83" title="Messier 83">83</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/New_General_Catalogue" title="New General Catalogue">NGC</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NGC_2617" title="NGC 2617">2617</a></li> <li><a href="/wiki/NGC_2697" title="NGC 2697">2697</a></li> <li><a href="/wiki/NGC_2708" title="NGC 2708">2708</a></li> <li><a href="/wiki/NGC_2835" title="NGC 2835">2835</a></li> <li><a href="/wiki/NGC_2865" title="NGC 2865">2865</a></li> <li><a href="/wiki/NGC_2890" title="NGC 2890">2890</a></li> <li><a href="/wiki/NGC_2936" title="NGC 2936">2936</a></li> <li><a href="/wiki/NGC_2937" title="NGC 2937">2937</a></li> <li><a href="/wiki/NGC_2962" title="NGC 2962">2962</a></li> <li><a href="/wiki/NGC_2992" title="NGC 2992">2992</a></li> <li><a href="/wiki/NGC_3054" title="NGC 3054">3054</a></li> <li><a href="/wiki/NGC_3081" title="NGC 3081">3081</a></li> <li><a href="/wiki/NGC_3109" title="NGC 3109">3109</a></li> <li><a href="/wiki/NGC_3124" title="NGC 3124">3124</a></li> <li><a href="/wiki/NGC_3285" title="NGC 3285">3285</a></li> <li><a href="/wiki/NGC_3305" title="NGC 3305">3305</a></li> <li><a href="/wiki/NGC_3307" title="NGC 3307">3307</a></li> <li><a href="/wiki/NGC_3308" title="NGC 3308">3308</a></li> <li><a href="/wiki/NGC_3309" title="NGC 3309">3309</a></li> <li><a href="/wiki/NGC_3311" title="NGC 3311">3311</a></li> <li><a href="/wiki/NGC_3312" title="NGC 3312">3312</a></li> <li><a href="/wiki/NGC_3313" title="NGC 3313">3313</a></li> <li><a href="/wiki/NGC_3314" title="NGC 3314">3314</a></li> <li><a href="/wiki/NGC_3315" title="NGC 3315">3315</a></li> <li><a href="/wiki/NGC_3316" title="NGC 3316">3316</a></li> <li><a href="/wiki/NGC_3336" title="NGC 3336">3336</a></li> <li><a href="/wiki/NGC_3369" title="NGC 3369">3369</a></li> <li><a href="/wiki/NGC_3393" title="NGC 3393">3393</a></li> <li><a href="/wiki/NGC_3402" title="NGC 3402">3402</a></li> <li><a href="/wiki/NGC_3464" title="NGC 3464">3464</a></li> <li><a href="/wiki/NGC_3585" title="NGC 3585">3585</a></li> <li><a href="/wiki/NGC_3621" title="NGC 3621">3621</a></li> <li><a href="/wiki/NGC_3717" title="NGC 3717">3717</a></li> <li><a href="/wiki/NGC_3923" title="NGC 3923">3923</a></li> <li><a href="/wiki/NGC_4980" title="NGC 4980">4980</a></li> <li><a href="/wiki/NGC_4993" title="NGC 4993">4993</a></li> <li><a href="/wiki/NGC_5078" title="NGC 5078">5078</a></li> <li><a href="/wiki/NGC_5101" title="NGC 5101">5101</a></li> <li><a href="/wiki/NGC_5135" title="NGC 5135">5135</a></li> <li><a href="/wiki/NGC_5260" title="NGC 5260">5260</a></li> <li><a href="/wiki/NGC_5264" title="NGC 5264">5264</a></li> <li><a href="/wiki/NGC_5495" title="NGC 5495">5495</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3C_196.1" title="3C 196.1">3C 196.1</a></li> <li><a href="/wiki/AM_1316-241" title="AM 1316-241">AM 1316-241</a></li> <li><a href="/wiki/Arp_7" title="Arp 7">Arp 7</a></li> <li><a href="/wiki/ESO_510-G13" title="ESO 510-G13">ESO 510-G13</a></li> <li><a href="/wiki/GAMA202627" title="GAMA202627">GAMA202627</a></li> <li><a href="/wiki/IC_535" title="IC 535">IC 535</a></li> <li><a href="/wiki/MRC_1138-262" title="MRC 1138-262">MRC 1138-262</a></li> <li><a href="/wiki/Peekaboo_Galaxy" title="Peekaboo Galaxy">Peekaboo Galaxy</a></li> <li><a href="/wiki/TN_J0924-2201" title="TN J0924-2201">TN J0924-2201</a></li> <li><a href="/wiki/Tololo_1247-232" title="Tololo 1247-232">Tololo 1247-232</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Galaxy_cluster" title="Galaxy cluster">Galaxy clusters</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Abell_Catalogue" class="mw-redirect" title="Abell Catalogue">Abell</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">754</a></li> <li><a href="/wiki/Abell_3411" title="Abell 3411">3411</a></li> <li><a href="/wiki/Abell_3412" title="Abell 3412">3412</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hickson_40" title="Hickson 40">Hickson 40</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Time-domain_astronomy" title="Time-domain astronomy">Astronomical events</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GW170817" title="GW170817">GW170817</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Galaxies417" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="text-align: center;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Galaxy" title="Template:Galaxy"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Galaxy" title="Template talk:Galaxy"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Galaxy" title="Special:EditPage/Template:Galaxy"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Galaxies417" style="font-size:114%;margin:0 4em"><a href="/wiki/Galaxy" title="Galaxy">Galaxies</a></div></th></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Galaxy_morphological_classification" title="Galaxy morphological classification">Morphology</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Disc_galaxy" title="Disc galaxy">Disc</a></li> <li><a href="/wiki/Lenticular_galaxy" title="Lenticular galaxy">Lenticular</a> <ul><li><a href="/wiki/Barred_lenticular_galaxy" class="mw-redirect" title="Barred lenticular galaxy">barred</a></li> <li><a href="/wiki/Unbarred_lenticular_galaxy" class="mw-redirect" title="Unbarred lenticular galaxy">unbarred</a></li></ul></li> <li><a href="/wiki/Spiral_galaxy" title="Spiral galaxy">Spiral</a> <ul><li><a href="/wiki/Anemic_galaxy" title="Anemic galaxy">anemic</a></li> <li><a href="/wiki/Barred_spiral_galaxy" title="Barred spiral galaxy">barred</a></li> <li><a href="/wiki/Flocculent_spiral_galaxy" title="Flocculent spiral galaxy">flocculent</a></li> <li><a href="/wiki/Grand_design_spiral_galaxy" title="Grand design spiral galaxy">grand design</a></li> <li><a href="/wiki/Intermediate_spiral_galaxy" title="Intermediate spiral galaxy">intermediate</a></li> <li><a href="/wiki/Magellanic_spiral" title="Magellanic spiral">Magellanic</a></li> <li><a href="/wiki/Unbarred_spiral_galaxy" title="Unbarred spiral galaxy">unbarred</a></li></ul></li> <li><a href="/wiki/Dwarf_galaxy" title="Dwarf galaxy">Dwarf galaxy</a> <ul><li><a href="/wiki/Dwarf_elliptical_galaxy" title="Dwarf elliptical galaxy">elliptical</a></li> <li><a href="/wiki/Dwarf_galaxy#Common_dwarf_galaxy_types" title="Dwarf galaxy">irregular</a></li> <li><a href="/wiki/Dwarf_spheroidal_galaxy" title="Dwarf spheroidal galaxy">spheroidal</a></li> <li><a href="/wiki/Dwarf_spiral_galaxy" title="Dwarf spiral galaxy">spiral</a></li></ul></li> <li><a href="/wiki/Elliptical_galaxy" title="Elliptical galaxy">Elliptical galaxy</a> <ul><li><a href="/wiki/Type-cD_galaxy" title="Type-cD galaxy">cD</a></li></ul></li> <li><a href="/wiki/Irregular_galaxy" title="Irregular galaxy">Irregular</a> <ul><li><a href="/wiki/Barred_irregular_galaxy" title="Barred irregular galaxy">barred</a></li></ul></li> <li><a href="/wiki/Peculiar_galaxy" title="Peculiar galaxy">Peculiar</a></li> <li><a href="/wiki/Ring_galaxy" title="Ring galaxy">Ring</a> <ul><li><a href="/wiki/Polar-ring_galaxy" title="Polar-ring galaxy">Polar</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Structure</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/Active_galactic_nucleus" title="Active galactic nucleus">Active galactic nucleus</a></li> <li><a href="/wiki/Barred_spiral_galaxy" title="Barred spiral galaxy">Bar</a></li> <li><a href="/wiki/Galactic_bulge" title="Galactic bulge">Bulge</a></li> <li><a href="/wiki/Central_massive_object" title="Central massive object">Central massive object</a> <ul><li><a href="/wiki/Galactic_Center" title="Galactic Center">Galactic Center</a></li></ul></li> <li><a href="/wiki/Dark_matter_halo" title="Dark matter halo">Dark matter halo</a></li> <li><a href="/wiki/Galactic_disc" title="Galactic disc">Disc</a> <ul><li><a href="/wiki/Disc_galaxy" title="Disc galaxy">Disc galaxy</a></li></ul></li> <li><a href="/wiki/Galactic_halo" title="Galactic halo">Halo</a> <ul><li><a href="/wiki/Galactic_corona" title="Galactic corona">corona</a></li></ul></li> <li><a href="/wiki/Galactic_plane" title="Galactic plane">Galactic plane</a></li> <li><a href="/wiki/Galactic_ridge" title="Galactic ridge">Galactic ridge</a></li> <li><a href="/wiki/Interstellar_medium" title="Interstellar medium">Interstellar medium</a></li> <li><a href="/wiki/Protogalaxy" title="Protogalaxy">Protogalaxy</a></li> <li><a href="/wiki/Galaxy_filament" title="Galaxy filament">Galaxy filament</a></li> <li><a href="/wiki/Spiral_galaxy#Spiral_arms" title="Spiral galaxy">Spiral arm</a></li> <li><a href="/wiki/Supermassive_black_hole" title="Supermassive black hole">Supermassive black hole</a> <ul><li><a href="/wiki/Ultramassive_black_hole" class="mw-redirect" title="Ultramassive black hole">Ultramassive</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Active_galactic_nucleus" title="Active galactic nucleus">Active nuclei</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Blazar" title="Blazar">Blazar</a></li> <li><a href="/wiki/Low-ionization_nuclear_emission-line_region" title="Low-ionization nuclear emission-line region">LINER</a></li> <li><a href="/wiki/Markarian_galaxies" title="Markarian galaxies">Markarian</a></li> <li><a href="/wiki/Quasar" title="Quasar">Quasar</a></li> <li><a href="/wiki/BL_Lacertae_object" title="BL Lacertae object">BL Lacertae object</a></li> <li><a href="/wiki/Radio_galaxy" title="Radio galaxy">Radio</a> <ul><li><a href="/wiki/X-shaped_radio_galaxy" title="X-shaped radio galaxy">X-shaped</a></li> <li><a href="/wiki/DRAGN" class="mw-redirect" title="DRAGN">DRAGN</a></li></ul></li> <li><a href="/wiki/Astrophysical_jet#Relativistic_jet" title="Astrophysical jet">Relativistic jet</a></li> <li><a href="/wiki/Seyfert_galaxy" title="Seyfert galaxy">Seyfert</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Energetic galaxies</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/Lyman-alpha_emitter" title="Lyman-alpha emitter">Lyman-alpha emitter</a></li> <li><a href="/wiki/Lyman-break_galaxy" title="Lyman-break galaxy">Lyman-break</a></li> <li><a href="/wiki/Luminous_infrared_galaxy" title="Luminous infrared galaxy">Luminous infrared</a> <ul><li><a href="/wiki/ULIRG" class="mw-redirect" title="ULIRG">ULIRG</a></li> <li><a href="/wiki/HLIRG" class="mw-redirect" title="HLIRG">HLIRG</a></li> <li><a href="/wiki/ELIRG" class="mw-redirect" title="ELIRG">ELIRG</a></li></ul></li> <li><a href="/wiki/Starburst_galaxy" title="Starburst galaxy">Starburst</a> <ul><li><a href="/wiki/Dwarf_galaxy#Blue_compact_dwarf_galaxies" title="Dwarf galaxy">blue compact dwarf</a></li> <li><a href="/wiki/Pea_galaxy" title="Pea galaxy">pea</a></li> <li><a href="/wiki/Faint_blue_galaxy" title="Faint blue galaxy">faint blue</a></li> <li><a href="/wiki/Luminous_infrared_galaxy" title="Luminous infrared galaxy">Luminous infrared galaxy</a></li></ul></li> <li><a href="/wiki/Hot,_dust-obscured_galaxy" title="Hot, dust-obscured galaxy">Hot dust-obscured</a></li> <li><a href="/wiki/Green_bean_galaxy" title="Green bean galaxy">Green bean galaxy</a></li> <li><a href="/wiki/Hanny%27s_Voorwerp" title="Hanny's Voorwerp">Hanny's Voorwerp</a></li> <li><a href="/wiki/Wolf-Rayet_galaxy" class="mw-redirect" title="Wolf-Rayet galaxy">Wolf-Rayet galaxy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Low activity</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Low_surface_brightness_galaxy" title="Low surface brightness galaxy">Low surface brightness</a></li> <li><a href="/wiki/Ultra_diffuse_galaxy" title="Ultra diffuse galaxy">Ultra diffuse</a></li> <li><a href="/wiki/Dark_galaxy" title="Dark galaxy">Dark galaxy</a></li> <li><a href="/wiki/Red_nugget" title="Red nugget">Red nugget</a></li> <li><a href="/wiki/Blue_Nugget" title="Blue Nugget">Blue Nugget</a></li> <li><a href="/wiki/Dead_disk" title="Dead disk">Dead disk</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">Interaction</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/Field_galaxy" title="Field galaxy">Field</a></li> <li><a href="/wiki/Galactic_tide" title="Galactic tide">Galactic tide</a></li> <li><a href="/wiki/Galaxy_groups_and_clusters" title="Galaxy groups and clusters">Groups and clusters</a> <ul><li><a href="/wiki/Galaxy_group" title="Galaxy group">group</a></li> <li><a href="/wiki/Galaxy_cluster" title="Galaxy cluster">cluster</a></li> <li><a href="/wiki/Brightest_cluster_galaxy" title="Brightest cluster galaxy">Brightest cluster galaxy</a></li> <li><a href="/wiki/Fossil_galaxy_group" class="mw-redirect" title="Fossil galaxy group">fossil group</a></li></ul></li> <li><a href="/wiki/Interacting_galaxy" title="Interacting galaxy">Interacting</a> <ul><li><a href="/wiki/Galaxy_merger" title="Galaxy merger">merger</a></li> <li><a href="/wiki/Galaxy_collision" class="mw-redirect" title="Galaxy collision">collision</a></li> <li><a href="/wiki/Galactic_cannibalism" class="mw-redirect" title="Galactic cannibalism">cannibalism</a></li></ul></li> <li><a href="/wiki/Jellyfish_galaxy" title="Jellyfish galaxy">Jellyfish</a></li> <li><a href="/wiki/Satellite_galaxy" title="Satellite galaxy">Satellite</a></li> <li><a href="/wiki/Stellar_kinematics#Stellar_streams" title="Stellar kinematics">Stellar stream</a></li> <li><a href="/wiki/Supercluster" title="Supercluster">Superclusters</a></li> <li><a href="/wiki/Galaxy_filament" title="Galaxy filament">Walls</a></li> <li><a href="/wiki/Void_(astronomy)" title="Void (astronomy)">Voids and supervoids</a> <ul><li><a href="/wiki/Void_galaxy" title="Void galaxy">void galaxy</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%"><a href="/wiki/Lists_of_galaxies" title="Lists of galaxies">Lists</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_galaxies" title="List of galaxies">Galaxies</a> <ul><li><a href="/wiki/List_of_astronomical_objects_named_after_people#Galaxies" title="List of astronomical objects named after people">Galaxies named after people</a></li> <li><a href="/wiki/List_of_largest_galaxies" title="List of largest galaxies">Largest</a></li> <li><a href="/wiki/List_of_nearest_galaxies" title="List of nearest galaxies">Nearest</a></li> <li><a href="/wiki/List_of_polar-ring_galaxies" title="List of polar-ring galaxies">Polar-ring</a></li> <li><a href="/wiki/List_of_ring_galaxies" title="List of ring galaxies">Ring</a></li> <li><a href="/wiki/List_of_spiral_galaxies" title="List of spiral galaxies">Spiral</a></li></ul></li> <li><a href="/wiki/List_of_galaxy_groups_and_clusters" title="List of galaxy groups and clusters">Groups and clusters</a></li> <li><a href="/wiki/Large_quasar_group#List_of_LQGs" title="Large quasar group">Large quasar groups</a></li> <li><a href="/wiki/List_of_quasars" title="List of quasars">Quasars</a></li> <li><a href="/wiki/List_of_the_most_distant_astronomical_objects" title="List of the most distant astronomical objects">List of the most distant astronomical objects</a></li> <li><a href="/wiki/Starburst_galaxies" class="mw-redirect" title="Starburst galaxies">Starburst galaxies</a></li> <li><a href="/wiki/Supercluster#List_of_superclusters" title="Supercluster">Superclusters</a></li> <li><a href="/wiki/List_of_voids" title="List of voids">Voids</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:1%">See also</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Extragalactic_astronomy" title="Extragalactic astronomy">Extragalactic astronomy</a></li> <li><a href="/wiki/Galactic_astronomy" title="Galactic astronomy">Galactic astronomy</a></li> <li><a href="/wiki/Galactic_coordinate_system" title="Galactic coordinate system">Galactic coordinate system</a></li> <li><a href="/wiki/Galactic_habitable_zone" title="Galactic habitable zone">Galactic habitable zone</a></li> <li><a href="/wiki/Galactic_magnetic_fields" class="mw-redirect" title="Galactic magnetic fields">Galactic magnetic fields</a></li> <li><a href="/wiki/Galactic_orientation" title="Galactic orientation">Galactic orientation</a></li> <li><a href="/wiki/Galactic_quadrant" title="Galactic quadrant">Galactic quadrant</a></li> <li><a href="/wiki/Galaxy_color%E2%80%93magnitude_diagram" title="Galaxy color–magnitude diagram">Galaxy color–magnitude diagram</a></li> <li><a href="/wiki/Galaxy_formation_and_evolution" title="Galaxy formation and evolution">Galaxy formation and evolution</a></li> <li><a href="/wiki/Galaxy_rotation_curve" title="Galaxy rotation curve">Galaxy rotation curve</a></li> <li><a href="/wiki/Gravitational_lens" title="Gravitational lens">Gravitational lens</a></li> <li><a href="/wiki/Gravitational_microlensing" title="Gravitational microlensing">Gravitational microlensing</a></li> <li><a href="/wiki/Illustris_project" title="Illustris project">Illustris project</a></li> <li><a href="/wiki/Intergalactic_dust" title="Intergalactic dust">Intergalactic dust</a></li> <li><a href="/wiki/Intergalactic_star" title="Intergalactic star">Intergalactic stars</a></li> <li><a href="/wiki/Intergalactic_travel" title="Intergalactic travel">Intergalactic travel</a></li> <li><a href="/wiki/Metallicity#Population_IIIstars" title="Metallicity">Population III stars</a></li> <li><a href="/wiki/Galaxy_X_(galaxy)" title="Galaxy X (galaxy)">Galaxy X (galaxy)</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: center;"><div> <ul><li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Galaxies" 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