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SU Andromedae - Wikipedia

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class="mw-page-title-main">SU Andromedae</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. 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searchaux" style="display:none">Star in the constellation Andromeda</div> <table class="infobox" style="width: 22em; font-size: 88%; line-height: 1.5em"> <caption style="font-size: 125%; font-weight: bold"><a href="/wiki/Variable_star_designation" class="mw-redirect" title="Variable star designation">SU Andromedae</a> </caption><tbody><tr><td colspan="2" style="text-align:center;"><div style="text-align: center; margin-left:auto; margin-right:auto"><span typeof="mw:File"><a href="/wiki/File:SU_Andromedae.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/SU_Andromedae.jpg/250px-SU_Andromedae.jpg" decoding="async" width="250" height="188" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/67/SU_Andromedae.jpg/375px-SU_Andromedae.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/67/SU_Andromedae.jpg/500px-SU_Andromedae.jpg 2x" data-file-width="2000" data-file-height="1500" /></a></span><br />SU Andromedae in optical light</div></td></tr> <tr> <th style="text-align: center; background-color: #FFFFC0;" colspan="2">Observation data<br /><a href="/wiki/Epoch_(astronomy)" title="Epoch (astronomy)">Epoch</a> J2000.0&#160;&#160;&#160;&#160;&#160;&#160;<a href="/wiki/Equinox_(celestial_coordinates)" title="Equinox (celestial coordinates)">Equinox</a> J2000.0 </th></tr> <tr style="vertical-align:top"> <th style="text-align:left"><a href="/wiki/Constellation" title="Constellation">Constellation</a> </th> <td><a href="/wiki/Andromeda_(constellation)" title="Andromeda (constellation)">Andromeda</a> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><span class="nowrap"><a href="/wiki/Right_ascension" title="Right ascension">Right ascension</a></span> </th> <td><span class="nowrap">00<sup>h</sup> 04<sup>m</sup> 36.4076<sup>s</sup></span><sup id="cite_ref-Gaia_DR2_1-0" class="reference"><a href="#cite_note-Gaia_DR2-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><a href="/wiki/Declination" title="Declination">Declination</a> </th> <td>+43&#176;&#160;33&#8242;&#160;04.7264&#8243;<sup id="cite_ref-Gaia_DR2_1-1" class="reference"><a href="#cite_note-Gaia_DR2-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><span class="nowrap"><a href="/wiki/Apparent_magnitude" title="Apparent magnitude">Apparent&#160;magnitude</a>&#160;(V)</span> </th> <td>8.0 to 8.5<sup id="cite_ref-gcvs_2-0" class="reference"><a href="#cite_note-gcvs-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr> <th style="background-color: #FFFFC0; text-align: center;" colspan="2">Characteristics </th></tr> <tr style="vertical-align:top"> <th style="text-align:left"><a href="/wiki/Stellar_classification" title="Stellar classification">Spectral&#160;type</a> </th> <td>C6,4(C5II)<sup id="cite_ref-gcvs_2-1" class="reference"><a href="#cite_note-gcvs-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left">U−B <a href="/wiki/Color_index" title="Color index">color index</a> </th> <td>+4.13<sup id="cite_ref-richer_3-0" class="reference"><a href="#cite_note-richer-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left">B−V <a href="/wiki/Color_index" title="Color index">color index</a> </th> <td>+2.58<sup id="cite_ref-richer_3-1" class="reference"><a href="#cite_note-richer-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><a href="/wiki/Variable_star" title="Variable star">Variable&#160;type</a> </th> <td><a href="/wiki/Slow_irregular_variable" title="Slow irregular variable">LC</a><sup id="cite_ref-gcvs_2-2" class="reference"><a href="#cite_note-gcvs-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </td></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2"><a href="/wiki/Astrometry" title="Astrometry">Astrometry</a></th></tr><tr><th colspan="2" style="text-align: center"></th></tr><tr style="vertical-align:top;"><td><b><a href="/wiki/Proper_motion" title="Proper motion">Proper motion</a> (μ)</b></td><td> <abbr title="Right Ascension">RA:</abbr>&#160;<span class="nowrap"><span data-sort-value="2999663800000000000♠"></span>−3.362<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.058</span> <sup id="cite_ref-Gaia_DR2_1-2" class="reference"><a href="#cite_note-Gaia_DR2-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup>&#160;<a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a>/<a href="/wiki/Year" title="Year">yr</a> <br /> <abbr title="Declination">Dec.:</abbr>&#160;<span class="nowrap"><span data-sort-value="2999790300000000000♠"></span>−2.097<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.040</span> <sup id="cite_ref-Gaia_DR2_1-3" class="reference"><a href="#cite_note-Gaia_DR2-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup>&#160;<a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a>/<a href="/wiki/Year" title="Year">yr</a> </td></tr><tr style="vertical-align:top;"><td><b><a href="/wiki/Stellar_parallax" title="Stellar parallax">Parallax</a> (π)</b></td><td>0.6979&#160;±&#160;0.0439&#160;<a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a><sup id="cite_ref-Gaia_DR2_1-4" class="reference"><a href="#cite_note-Gaia_DR2-1"><span class="cite-bracket">&#91;</span>1<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr style="vertical-align:top;"><td><b><a href="/wiki/Distance_(astronomy)" class="mw-redirect" title="Distance (astronomy)">Distance</a></b></td><td>4,700 ± 300&#160;<a href="/wiki/Light-year" title="Light-year">ly</a> <br />(1,430 ± 90&#160;<a href="/wiki/Parsec" title="Parsec">pc</a>)</td></tr><tr style="vertical-align:top;"><td><b><a href="/wiki/Absolute_magnitude" title="Absolute magnitude">Absolute&#160;magnitude</a>&#160;(M<sub>V</sub>)</b></td><td>&#8722;2.2<sup id="cite_ref-olson_4-0" class="reference"><a href="#cite_note-olson-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup></td></tr><tr><th colspan="2" style="text-align: center"></th></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Details</th></tr><tr><th colspan="2" style="text-align: center">SU And</th></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Luminosity" title="Luminosity">Luminosity</a></b></td><td>2,535<sup id="cite_ref-bergeat_5-0" class="reference"><a href="#cite_note-bergeat-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup>&#160;<a href="/wiki/Solar_luminosity" title="Solar luminosity"><var>L</var><sub>&#x2609;</sub></a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Effective_temperature" title="Effective temperature">Temperature</a></b></td><td>2,905<sup id="cite_ref-bergeat_5-1" class="reference"><a href="#cite_note-bergeat-5"><span class="cite-bracket">&#91;</span>5<span class="cite-bracket">&#93;</span></a></sup>&#160;<a href="/wiki/Kelvin" title="Kelvin">K</a></td></tr><tr><th colspan="2" style="text-align: center">co-moving companion</th></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Radius" title="Radius">Radius</a></b></td><td>1.95<sup id="cite_ref-dr2b_6-0" class="reference"><a href="#cite_note-dr2b-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup>&#160;<a href="/wiki/Solar_radius" title="Solar radius"><var>R</var><sub>&#x2609;</sub></a></td></tr><tr style="vertical-align:baseline;"><td><b>Luminosity</b></td><td>9.833<sup id="cite_ref-dr2b_6-1" class="reference"><a href="#cite_note-dr2b-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup>&#160;<a href="/wiki/Solar_luminosity" title="Solar luminosity"><var>L</var><sub>&#x2609;</sub></a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Effective_temperature" title="Effective temperature">Temperature</a></b></td><td>7,311<sup id="cite_ref-dr2b_6-2" class="reference"><a href="#cite_note-dr2b-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup>&#160;<a href="/wiki/Kelvin" title="Kelvin">K</a></td></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2"><a href="/wiki/Star_catalogue" title="Star catalogue">Other designations</a></th></tr><tr><td colspan="2"><div style="width: 250px;"> <a href="/wiki/Variable_star_designation" class="mw-redirect" title="Variable star designation">SU</a>&#160;Andromedae, SU&#160;And, <a href="/wiki/Henry_Draper_Catalogue" title="Henry Draper Catalogue">HD</a>&#160;225217, <a href="/wiki/Hipparcos" title="Hipparcos">HIP</a>&#160;363, <a href="/wiki/Durchmusterung" title="Durchmusterung">BD</a>+42&#160;4827 </div></td></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Database references</th></tr><tr style="vertical-align: top;"><td><b><a href="/wiki/SIMBAD" title="SIMBAD">SIMBAD</a></b></td><td><a rel="nofollow" class="external text" href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=V*+SU+And">data</a></td></tr> </tbody></table> <p><b>SU Andromedae</b> is a <a href="/wiki/Carbon_star" title="Carbon star">carbon star</a> in the constellation of <a href="/wiki/Andromeda_(constellation)" title="Andromeda (constellation)">Andromeda</a>. It is a <a href="/wiki/Variable_star" title="Variable star">variable star</a> classified as a <a href="/wiki/Slow_irregular_variable" title="Slow irregular variable">slow irregular</a> pulsating supergiant, and varies from an <a href="/wiki/Apparent_visual_magnitude" class="mw-redirect" title="Apparent visual magnitude">apparent visual magnitude</a> of 8.5 at minimum brightness to a magnitude of 8.0 at maximum brightness with no clear period.<sup id="cite_ref-gcvs_2-3" class="reference"><a href="#cite_note-gcvs-2"><span class="cite-bracket">&#91;</span>2<span class="cite-bracket">&#93;</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Variability">Variability</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SU_Andromedae&amp;action=edit&amp;section=1" title="Edit section: Variability"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:SUAndLightCurve.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/SUAndLightCurve.png/220px-SUAndLightCurve.png" decoding="async" width="220" height="143" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/SUAndLightCurve.png/330px-SUAndLightCurve.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/SUAndLightCurve.png/440px-SUAndLightCurve.png 2x" data-file-width="1500" data-file-height="975" /></a><figcaption><a href="/wiki/Photometric_system#Photometric_letters" title="Photometric system">visual band</a> <a href="/wiki/Light_curve" title="Light curve">light curve</a> of SU Andromedae, adapted from Miles (2010)<sup id="cite_ref-Miles_7-0" class="reference"><a href="#cite_note-Miles-7"><span class="cite-bracket">&#91;</span>7<span class="cite-bracket">&#93;</span></a></sup></figcaption></figure> <p><a href="/wiki/T._H._E._C._Espin" title="T. H. E. C. Espin">Thomas Espin</a> noted the possible variability of this star in 1895.<sup id="cite_ref-Espin1895_8-0" class="reference"><a href="#cite_note-Espin1895-8"><span class="cite-bracket">&#91;</span>8<span class="cite-bracket">&#93;</span></a></sup> <a href="/wiki/Williamina_Fleming" title="Williamina Fleming">Williamina Fleming</a>, in 1906, was examining photographic plates taken for the purpose of creating the <a href="/wiki/Henry_Draper_Catalogue" title="Henry Draper Catalogue">Henry Draper Catalogue</a> when she independently discovered and confirmed it as a variable star.<sup id="cite_ref-Pickering1906_9-0" class="reference"><a href="#cite_note-Pickering1906-9"><span class="cite-bracket">&#91;</span>9<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Spectrum">Spectrum</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SU_Andromedae&amp;action=edit&amp;section=2" title="Edit section: Spectrum"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The spectrum of SU Andromedae is dominated by <a href="/wiki/Swan_band" title="Swan band">Swan bands</a> from the molecule <a href="/wiki/Diatomic_carbon" title="Diatomic carbon">C<sub>2</sub></a>. These stars were classified as type N under the Harvard scheme, stars with the blue continuum completely obscured by molecular absorption bands. Carbon star spectral types were later refined in the Morgan-Keenan system and SU Andromedae was typically classified as C6<sub>4</sub>,<sup id="cite_ref-skiff_10-0" class="reference"><a href="#cite_note-skiff-10"><span class="cite-bracket">&#91;</span>10<span class="cite-bracket">&#93;</span></a></sup> indicating a fairly cool carbon star and the subscript 4 showing modest Swan band intensity.<sup id="cite_ref-keenan_11-0" class="reference"><a href="#cite_note-keenan-11"><span class="cite-bracket">&#91;</span>11<span class="cite-bracket">&#93;</span></a></sup> </p><p>Under the modern revised Morgan-Keenan system, SU Andromedae is classified as C-N5 C<sub>2</sub>6-.<sup id="cite_ref-barnbaum_12-0" class="reference"><a href="#cite_note-barnbaum-12"><span class="cite-bracket">&#91;</span>12<span class="cite-bracket">&#93;</span></a></sup> The C-N spectral type is to distinguish those stars from the C-R type where the blue continuum is not entirely hidden by absorption bands. A classification based on the infrared spectrum is C5 II, again a moderately cool carbon star with a <a href="/wiki/Luminosity_class" class="mw-redirect" title="Luminosity class">luminosity class</a> of II for a <a href="/wiki/Bright_giant" class="mw-redirect" title="Bright giant">bright giant</a>.<sup id="cite_ref-richer_3-2" class="reference"><a href="#cite_note-richer-3"><span class="cite-bracket">&#91;</span>3<span class="cite-bracket">&#93;</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Companion">Companion</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SU_Andromedae&amp;action=edit&amp;section=3" title="Edit section: Companion"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>SU Andromedae is 22" from a magnitude 12.77 star, probably an F0 <a href="/wiki/Main_sequence" title="Main sequence">main sequence</a> star. This star has a <a href="/wiki/Gaia_Data_Release_2" class="mw-redirect" title="Gaia Data Release 2">Gaia Data Release 2</a> parallax of <span class="nowrap"><span data-sort-value="6999747900000000000♠"></span>0.7479<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.0905</span><sup id="cite_ref-dr2b_6-3" class="reference"><a href="#cite_note-dr2b-6"><span class="cite-bracket">&#91;</span>6<span class="cite-bracket">&#93;</span></a></sup> and an <a href="/wiki/Absolute_magnitude" title="Absolute magnitude">absolute magnitude</a> of about +2.4. It has an almost identical space motion as SU Andromedae and is assumed to be a distant co-moving companion. Based on that assumption, the absolute magnitude of SU Andromedae is calculated to be about &#8722;2.2.<sup id="cite_ref-olson_4-1" class="reference"><a href="#cite_note-olson-4"><span class="cite-bracket">&#91;</span>4<span class="cite-bracket">&#93;</span></a></sup> </p> <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=SU_Andromedae&amp;action=edit&amp;section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-Gaia_DR2-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Gaia_DR2_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Gaia_DR2_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Gaia_DR2_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Gaia_DR2_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-Gaia_DR2_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 id="CITEREFBrown2018" class="citation journal cs1"><a href="/wiki/Anthony_Brown_(scientist)" title="Anthony Brown (scientist)">Brown, A. G. A.</a>; et&#160;al. (Gaia collaboration) (August 2018). <a rel="nofollow" class="external text" href="https://doi.org/10.1051%2F0004-6361%2F201833051">"<i>Gaia</i> Data Release 2: Summary of the contents and survey properties"</a>. <i><a href="/wiki/Astronomy_%26_Astrophysics" title="Astronomy &amp; Astrophysics">Astronomy &amp; Astrophysics</a></i>. <b>616</b>. A1. <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/1804.09365">1804.09365</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2018A&amp;A...616A...1G">2018A&#38;A...616A...1G</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/10.1051%2F0004-6361%2F201833051">10.1051/0004-6361/201833051</a></span>.</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=Astronomy+%26+Astrophysics&amp;rft.atitle=Gaia+Data+Release+2%3A+Summary+of+the+contents+and+survey+properties&amp;rft.volume=616&amp;rft.pages=A1&amp;rft.date=2018-08&amp;rft_id=info%3Aarxiv%2F1804.09365&amp;rft_id=info%3Adoi%2F10.1051%2F0004-6361%2F201833051&amp;rft_id=info%3Abibcode%2F2018A%26A...616A...1G&amp;rft.aulast=Brown&amp;rft.aufirst=A.+G.+A.&amp;rft_id=https%3A%2F%2Fdoi.org%2F10.1051%252F0004-6361%252F201833051&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ASU+Andromedae" class="Z3988"></span>&#32;<a rel="nofollow" class="external text" href="http://vizier.u-strasbg.fr/viz-bin/VizieR-S?Gaia%20DR2%20384828730421099136">Gaia DR2 record for this source</a> at <a href="/wiki/VizieR" title="VizieR">VizieR</a>.</span> </li> <li id="cite_note-gcvs-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-gcvs_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-gcvs_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-gcvs_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-gcvs_2-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFN._N._SamusO._V._Durlevich" class="citation web cs1">N. 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href="/wiki/Template:Andromeda_(constellation)" title="Template:Andromeda (constellation)"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Andromeda_(constellation)" title="Template talk:Andromeda (constellation)"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Andromeda_(constellation)" title="Special:EditPage/Template:Andromeda (constellation)"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Constellation_of_Andromeda381" style="font-size:114%;margin:0 4em"><a href="/wiki/Andromeda_(constellation)" title="Andromeda (constellation)">Constellation of Andromeda</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: center;"><div> <ul><li><a href="/wiki/Adhil" title="Adhil">Adhil</a></li> <li><a href="/wiki/Andromeda_in_Chinese_astronomy" title="Andromeda in Chinese astronomy">Andromeda in Chinese astronomy</a></li> <li><a href="/wiki/List_of_Andromeda%27s_satellite_galaxies" title="List of Andromeda&#39;s satellite galaxies">List of Andromeda's satellite galaxies</a></li> <li><a href="/wiki/List_of_stars_in_Andromeda" title="List of stars in Andromeda">List of stars in Andromeda</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:55px"><a href="/wiki/Star" title="Star">Stars</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="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:70px"><a href="/wiki/Bayer_designation" title="Bayer designation">Bayer</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alpheratz" title="Alpheratz">α (Alpheratz)</a></li> <li><a href="/wiki/Mirach" title="Mirach">β (Mirach)</a></li> <li><a href="/wiki/Gamma_Andromedae" title="Gamma Andromedae">γ (Almach)</a></li> <li><a href="/wiki/Delta_Andromedae" title="Delta Andromedae">δ</a></li> <li><a href="/wiki/Epsilon_Andromedae" title="Epsilon Andromedae">ε</a></li> <li><a href="/wiki/Zeta_Andromedae" title="Zeta Andromedae">ζ</a></li> <li><a href="/wiki/Eta_Andromedae" title="Eta Andromedae">η</a></li> <li><a href="/wiki/Theta_Andromedae" title="Theta Andromedae">θ</a></li> <li><a href="/wiki/Iota_Andromedae" title="Iota Andromedae">ι</a></li> <li><a href="/wiki/Kappa_Andromedae" title="Kappa Andromedae">κ</a></li> <li><a href="/wiki/Lambda_Andromedae" title="Lambda Andromedae">λ</a></li> <li><a href="/wiki/Mu_Andromedae" title="Mu Andromedae">μ</a></li> <li><a href="/wiki/Nu_Andromedae" title="Nu Andromedae">ν</a></li> <li><a href="/wiki/Xi_Andromedae" title="Xi Andromedae">ξ (Adhil)</a></li> <li><a href="/wiki/Omicron_Andromedae" title="Omicron Andromedae">ο</a></li> <li><a href="/wiki/Pi_Andromedae" title="Pi Andromedae">π</a></li> <li><a href="/wiki/Rho_Andromedae" title="Rho Andromedae">ρ</a></li> <li><a href="/wiki/Sigma_Andromedae" title="Sigma Andromedae">σ</a></li> <li><a href="/wiki/Tau_Andromedae" title="Tau Andromedae">τ</a></li> <li><a href="/wiki/Upsilon_Andromedae" title="Upsilon Andromedae">υ (Titawin)</a></li> <li><a href="/wiki/Phi_Andromedae" title="Phi Andromedae">φ</a></li> <li><a href="/wiki/Chi_Andromedae" title="Chi Andromedae">χ</a></li> <li><a href="/wiki/Psi_Andromedae" title="Psi Andromedae">ψ</a></li> <li><a href="/wiki/Omega_Andromedae" title="Omega Andromedae">ω</a></li> <li><a href="/wiki/49_Andromedae" title="49 Andromedae">A</a></li> <li><a href="/wiki/60_Andromedae" title="60 Andromedae">b</a></li> <li><a href="/wiki/62_Andromedae" title="62 Andromedae">c</a></li> <li><a href="/wiki/51_Andromedae" title="51 Andromedae"><i>υ Per</i> (Nembus)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Flamsteed_designation" title="Flamsteed designation">Flamsteed</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/2_Andromedae" title="2 Andromedae">2</a></li> <li><a href="/wiki/3_Andromedae" title="3 Andromedae">3</a></li> <li><a href="/wiki/4_Andromedae" title="4 Andromedae">4</a></li> <li><a href="/wiki/5_Andromedae" title="5 Andromedae">5</a></li> <li><a href="/wiki/6_Andromedae" title="6 Andromedae">6</a></li> <li><a href="/wiki/7_Andromedae" title="7 Andromedae">7</a></li> <li><a href="/wiki/8_Andromedae" title="8 Andromedae">8</a></li> <li><a href="/wiki/9_Andromedae" title="9 Andromedae">9</a></li> <li><a href="/wiki/10_Andromedae" title="10 Andromedae">10</a></li> <li><a href="/wiki/11_Andromedae" title="11 Andromedae">11</a></li> <li><a href="/wiki/12_Andromedae" title="12 Andromedae">12</a></li> <li><a href="/wiki/13_Andromedae" title="13 Andromedae">13</a></li> <li><a href="/wiki/14_Andromedae" title="14 Andromedae">14 (Veritate)</a></li> <li><a href="/wiki/15_Andromedae" title="15 Andromedae">15</a></li> <li><a href="/wiki/18_Andromedae" title="18 Andromedae">18</a></li> <li><a href="/wiki/22_Andromedae" title="22 Andromedae">22</a></li> <li><a href="/wiki/23_Andromedae" title="23 Andromedae">23</a></li> <li><a href="/wiki/26_Andromedae" title="26 Andromedae">26</a></li> <li><a href="/wiki/28_Andromedae" title="28 Andromedae">28</a></li> <li><a href="/wiki/32_Andromedae" title="32 Andromedae">32</a></li> <li><a href="/wiki/36_Andromedae" title="36 Andromedae">36</a></li> <li><a href="/wiki/39_Andromedae" title="39 Andromedae">39</a></li> <li><a href="/wiki/41_Andromedae" title="41 Andromedae">41</a></li> <li><a href="/wiki/44_Andromedae" title="44 Andromedae">44</a></li> <li><a href="/wiki/45_Andromedae" title="45 Andromedae">45</a></li> <li><a href="/wiki/47_Andromedae" title="47 Andromedae">47</a></li> <li><a href="/wiki/55_Andromedae" title="55 Andromedae">55</a></li> <li><a href="/wiki/56_Andromedae" title="56 Andromedae">56</a></li> <li><a href="/wiki/58_Andromedae" title="58 Andromedae">58</a></li> <li><a href="/wiki/59_Andromedae" title="59 Andromedae">59</a></li> <li><a href="/wiki/63_Andromedae" title="63 Andromedae">63</a></li> <li><a href="/wiki/64_Andromedae" title="64 Andromedae">64</a></li> <li><a href="/wiki/65_Andromedae" title="65 Andromedae">65</a></li> <li><a href="/wiki/66_Andromedae" title="66 Andromedae">66</a></li> <li><i><a href="/wiki/6_Persei" title="6 Persei">6 Per</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Variable_star_designation" class="mw-redirect" title="Variable star designation">Variable</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/R_Andromedae" title="R Andromedae">R</a></li> <li><a href="/wiki/T_Andromedae" title="T Andromedae">T</a></li> <li><a href="/wiki/U_Andromedae" title="U Andromedae">U</a></li> <li><a href="/wiki/W_Andromedae" title="W Andromedae">W</a></li> <li><a href="/wiki/Z_Andromedae" title="Z Andromedae">Z</a></li> <li><a href="/wiki/RT_Andromedae" title="RT Andromedae">RT</a></li> <li><a href="/wiki/RV_Andromedae" title="RV Andromedae">RV</a></li> <li><a href="/wiki/RX_Andromedae" title="RX Andromedae">RX</a></li> <li><a class="mw-selflink selflink">SU</a></li> <li><a href="/wiki/SW_Andromedae" title="SW Andromedae">SW</a></li> <li><a href="/wiki/TU_Andromedae" title="TU Andromedae">TU</a></li> <li><a href="/wiki/TW_Andromedae" title="TW Andromedae">TW</a></li> <li><a href="/wiki/WZ_Andromedae" title="WZ Andromedae">WZ</a></li> <li><a href="/wiki/XZ_Andromedae" title="XZ Andromedae">XZ</a></li> <li><a href="/wiki/AB_Andromedae" title="AB Andromedae">AB</a></li> <li><a href="/wiki/AC_Andromedae" title="AC Andromedae">AC</a></li> <li><a href="/wiki/AD_Andromedae" title="AD Andromedae">AD</a></li> <li><a href="/wiki/AE_Andromedae" title="AE Andromedae">AE</a></li> <li><a href="/wiki/AF_Andromedae" title="AF Andromedae">AF</a></li> <li><a href="/wiki/AR_Andromedae" title="AR Andromedae">AR</a></li> <li><a href="/wiki/BM_Andromedae" title="BM Andromedae">BM</a></li> <li><a href="/wiki/BX_Andromedae" title="BX Andromedae">BX</a></li> <li><a href="/wiki/CC_Andromedae" title="CC Andromedae">CC</a></li> <li><a href="/wiki/HD_224801" title="HD 224801">CG</a></li> <li><a href="/wiki/CN_Andromedae" title="CN Andromedae">CN</a></li> <li><a href="/wiki/DS_Andromedae" title="DS Andromedae">DS</a></li> <li><a href="/wiki/DX_Andromedae" title="DX Andromedae">DX</a></li> <li><a href="/wiki/EG_Andromedae" title="EG Andromedae">EG</a></li> <li><a href="/wiki/ET_Andromedae" title="ET Andromedae">ET</a></li> <li><a href="/wiki/EU_Andromedae" title="EU Andromedae">EU</a></li> <li><a href="/wiki/FF_Andromedae" title="FF Andromedae">FF</a></li> <li><a href="/wiki/HD_4778" title="HD 4778">GO</a></li> <li><a href="/wiki/GP_Andromedae" title="GP Andromedae">GP</a></li> <li><a href="/wiki/Groombridge_34" title="Groombridge 34">GQ</a></li> <li><a href="/wiki/Groombridge_34" title="Groombridge 34">GX</a></li> <li><a href="/wiki/GR_Andromedae" title="GR Andromedae">GR</a></li> <li><a href="/wiki/GY_Andromedae" title="GY Andromedae">GY</a></li> <li><a href="/wiki/Ross_248" title="Ross 248">HH</a></li> <li><a href="/wiki/HN_Andromedae" title="HN Andromedae">HN</a></li> <li><a href="/wiki/IW_Andromedae" title="IW Andromedae">IW</a></li> <li><a href="/wiki/KK_Andromedae" title="KK Andromedae">KK</a></li> <li><a href="/wiki/KX_Andromedae" title="KX Andromedae">KX</a></li> <li><a href="/wiki/KZ_Andromedae" title="KZ Andromedae">KZ</a></li> <li><a href="/wiki/LL_Andromedae" title="LL Andromedae">LL</a></li> <li><a href="/wiki/LN_Andromedae" title="LN Andromedae">LN</a></li> <li><a href="/wiki/LP_Andromedae" title="LP Andromedae">LP</a></li> <li><a href="/wiki/LQ_Andromedae" title="LQ Andromedae">LQ</a></li> <li><a href="/wiki/OP_Andromedae" title="OP Andromedae">OP</a></li> <li><a href="/wiki/OS_Andromedae" title="OS Andromedae">OS</a></li> <li><a href="/wiki/OU_Andromedae" title="OU Andromedae">OU</a></li> <li><a href="/wiki/PX_Andromedae" title="PX Andromedae">PX</a></li> <li><a href="/wiki/HD_3322" title="HD 3322">PY</a></li> <li><a href="/wiki/QR_Andromedae" title="QR Andromedae">QR</a></li> <li><a href="/wiki/QV_Andromedae" title="QV Andromedae">QV</a></li> <li><a href="/wiki/QX_Andromedae" title="QX Andromedae">QX</a></li> <li><a href="/wiki/V385_Andromedae" title="V385 Andromedae">V385</a></li> <li><a href="/wiki/HD_3346" title="HD 3346">V428</a></li> <li><a href="/wiki/HD_166" title="HD 166">V439</a></li> <li><a href="/wiki/V455_Andromedae" title="V455 Andromedae">V455</a></li> <li><a href="/wiki/V529_Andromedae" title="V529 Andromedae">V529</a></li> <li><a href="/wiki/HD_15082" title="HD 15082">V807</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Bright_Star_Catalogue" title="Bright Star Catalogue">HR</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_3" title="HD 3">1</a></li> <li><a href="/wiki/HD_895" title="HD 895">40</a></li> <li><a href="/wiki/HD_1185" title="HD 1185">56</a></li> <li><a href="/wiki/HD_1606" title="HD 1606">78</a></li> <li><a href="/wiki/HD_2421" title="HD 2421">104</a></li> <li><a href="/wiki/HD_2767" title="HD 2767">122</a></li> <li><a href="/wiki/HD_2942" title="HD 2942">134</a></li> <li><a href="/wiki/HR_178" title="HR 178">178</a></li> <li><a href="/wiki/HD_5608" title="HD 5608">275</a></li> <li><a href="/wiki/HD_5788_and_HD_5789" title="HD 5788 and HD 5789">282</a></li> <li><a href="/wiki/HD_5788_and_HD_5789" title="HD 5788 and HD 5789">283</a></li> <li><a href="/wiki/HD_6114" title="HD 6114">289</a></li> <li><a href="/wiki/HD_7853" title="HD 7853">379</a></li> <li><a href="/wiki/HD_8673" title="HD 8673">410</a></li> <li><a href="/wiki/HD_10307" title="HD 10307">483</a></li> <li><a href="/wiki/HD_14622" title="HD 14622">687</a></li> <li><a href="/wiki/HD_16004" title="HD 16004">746</a></li> <li><a href="/wiki/HD_16028" title="HD 16028">748</a></li> <li><a href="/wiki/HD_220105" title="HD 220105">8884</a></li> <li><a href="/wiki/HD_221246" title="HD 221246">8925</a></li> <li><a href="/wiki/HD_221776" title="HD 221776">8950</a></li> <li><a href="/wiki/HD_222109" title="HD 222109">8962</a></li> <li><a href="/wiki/HD_222399" title="HD 222399">8973</a></li> <li><a href="/wiki/HD_223229" title="HD 223229">9011</a></li> <li><a href="/wiki/HD_224635_and_HD_224636" title="HD 224635 and HD 224636">9074</a></li> <li><a href="/wiki/HD_224635_and_HD_224636" title="HD 224635 and HD 224636">9075</a></li> <li><a href="/wiki/HD_225218" title="HD 225218">9105</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Henry_Draper_Catalogue" title="Henry Draper Catalogue">HD</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_16175" title="HD 16175">16175 (Buna)</a></li> <li><a href="/wiki/HD_222155" title="HD 222155">222155</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3XMM_J004232.1%2B411314" title="3XMM J004232.1+411314">3XMM J004232.1+411314</a></li> <li><a href="/wiki/ADS_48" title="ADS 48">ADS 48</a></li> <li><a href="/wiki/HAT-P-6" title="HAT-P-6">HAT-P-6 (Sterrennacht)</a></li> <li><a href="/wiki/HAT-P-16" title="HAT-P-16">HAT-P-16</a></li> <li><a href="/wiki/HAT-P-19" title="HAT-P-19">HAT-P-19</a></li> <li><a href="/wiki/HAT-P-28" title="HAT-P-28">HAT-P-28</a></li> <li><a href="/wiki/M31-RV" title="M31-RV">M31-RV</a></li> <li><a href="/wiki/KELT-1" title="KELT-1">KELT-1</a></li> <li><i><a href="/wiki/NGC_44" class="mw-redirect" title="NGC 44">NGC 44</a></i></li> <li><a href="/wiki/NGC_82" title="NGC 82">NGC 82</a></li> <li><a href="/wiki/NGC_84" title="NGC 84">NGC 84</a></li> <li><a href="/wiki/NGC_91" title="NGC 91">NGC 91</a></li> <li><a href="/wiki/NGC_162" title="NGC 162">NGC 162</a></li> <li><a href="/wiki/NGC_464" title="NGC 464">NGC 464</a></li> <li><a href="/wiki/Qatar-3" title="Qatar-3">Qatar-3</a></li> <li><a href="/wiki/Qatar-4" title="Qatar-4">Qatar-4</a></li> <li><a href="/wiki/Qatar-5" title="Qatar-5">Qatar-5</a></li> <li><a href="/wiki/PA-99-N2" title="PA-99-N2">PA-99-N2</a></li> <li><a href="/wiki/WASP-1" title="WASP-1">WASP-1</a></li> <li><a href="/wiki/WISE_0146%2B4234" title="WISE 0146+4234">WISE 0146+4234</a></li> <li><a href="/wiki/WISE_J0005%2B3737" title="WISE J0005+3737">WISE J0005+3737</a></li> <li><a href="/wiki/WISE_J004945.61%2B215120.0" title="WISE J004945.61+215120.0">WISE J004945.61+215120.0</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Exoplanets14" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Exoplanet" title="Exoplanet">Exoplanets</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/14_Andromedae_b" title="14 Andromedae b">14 Andromedae b</a></li> <li><a href="/wiki/Kappa_Andromedae_b" title="Kappa Andromedae b">κ Andromedae b</a></li> <li><a href="/wiki/Upsilon_Andromedae_b" title="Upsilon Andromedae b">υ Andromedae b</a></li> <li><a href="/wiki/Upsilon_Andromedae_c" title="Upsilon Andromedae c">c</a></li> <li><a href="/wiki/Upsilon_Andromedae_d" title="Upsilon Andromedae d">d</a></li> <li><a href="/wiki/Gliese_15_Ab" title="Gliese 15 Ab">Gliese 15 Ab</a></li> <li><a href="/wiki/Gliese_15_Ac" title="Gliese 15 Ac">c</a></li> <li><a href="/wiki/HD_13931_b" title="HD 13931 b">HD 13931 b</a></li> <li><a href="/wiki/HD_16175_b" title="HD 16175 b">HD 16175 b</a></li> <li><a href="/wiki/HAT-P-6b" title="HAT-P-6b">HAT-P-6b</a></li> <li><a href="/wiki/HAT-P-32b" title="HAT-P-32b">HAT-P-32b</a></li> <li><a href="/wiki/WASP-1b" title="WASP-1b">WASP-1b</a></li> <li><a href="/wiki/WASP-33b" title="WASP-33b">WASP-33b</a></li> <li><a href="/wiki/Qatar-4b" title="Qatar-4b">Qatar-4b</a></li> <li><a href="/wiki/Qatar-5b" title="Qatar-5b">Qatar-5b</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:55px"><a href="/wiki/Star_cluster" title="Star cluster">Star<br />clusters</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="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:70px"><a href="/wiki/New_General_Catalogue" title="New General Catalogue">NGC</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NGC_206" title="NGC 206">206</a></li> <li><a href="/wiki/NGC_272" title="NGC 272">272</a></li> <li><a href="/wiki/NGC_752" title="NGC 752">752</a></li> <li><a href="/wiki/NGC_956" title="NGC 956">956</a></li> <li><a href="/wiki/NGC_7686" title="NGC 7686">7686</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Mayall_II" title="Mayall II">Mayall II</a></li> <li><a href="/wiki/RBC_EXT8" title="RBC EXT8">RBC EXT8</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:55px"><a href="/wiki/Nebula" title="Nebula">Nebulae</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="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:70px">NGC</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NGC_7662" title="NGC 7662">7662</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:55px"><a href="/wiki/Galaxy" title="Galaxy">Galaxies</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="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:70px"><a href="/wiki/Messier_object" title="Messier object">Messier</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Messier_32" title="Messier 32">32</a></li> <li><a href="/wiki/Messier_110" title="Messier 110">110</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">NGC</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/NGC_5" class="mw-redirect" title="NGC 5">5</a></i></li> <li><a href="/wiki/NGC_11" title="NGC 11">11</a></li> <li><a href="/wiki/NGC_13" title="NGC 13">13</a></li> <li><a href="/wiki/NGC_19" title="NGC 19">19</a></li> <li><i><a href="/wiki/NGC_20" class="mw-redirect" title="NGC 20">20</a></i></li> <li><a href="/wiki/NGC_21" title="NGC 21">21</a></li> <li><a href="/wiki/NGC_27" title="NGC 27">27</a></li> <li><a href="/wiki/NGC_39" title="NGC 39">39</a></li> <li><a href="/wiki/NGC_43" title="NGC 43">43</a></li> <li><a href="/wiki/NGC_48" title="NGC 48">48</a></li> <li><a href="/wiki/NGC_49" title="NGC 49">49</a></li> <li><a href="/wiki/NGC_51" title="NGC 51">51</a></li> <li><a href="/wiki/NGC_67" title="NGC 67">67</a></li> <li><a href="/wiki/NGC_68" title="NGC 68">68</a></li> <li><a href="/wiki/NGC_69" title="NGC 69">69</a></li> <li><a href="/wiki/NGC_70" title="NGC 70">70</a></li> <li><a href="/wiki/NGC_71" title="NGC 71">71</a></li> <li><a href="/wiki/NGC_72" title="NGC 72">72</a></li> <li><a href="/wiki/NGC_74" class="mw-redirect" title="NGC 74">74</a></li> <li><a href="/wiki/NGC_76" title="NGC 76">76</a></li> <li><a href="/wiki/NGC_79" title="NGC 79">79</a></li> <li><a href="/wiki/NGC_80" title="NGC 80">80</a></li> <li><a href="/wiki/NGC_81" title="NGC 81">81</a></li> <li><a href="/wiki/NGC_83" title="NGC 83">83</a></li> <li><a href="/wiki/NGC_85" title="NGC 85">85</a></li> <li><a href="/wiki/NGC_86" title="NGC 86">86</a></li> <li><a href="/wiki/NGC_90" title="NGC 90">90</a></li> <li><a href="/wiki/NGC_93" title="NGC 93">93</a></li> <li><a href="/wiki/NGC_94" title="NGC 94">94</a></li> <li><a href="/wiki/NGC_96" title="NGC 96">96</a></li> <li><a href="/wiki/NGC_97" title="NGC 97">97</a></li> <li><a href="/wiki/NGC_108" title="NGC 108">108</a></li> <li><a href="/wiki/NGC_109" title="NGC 109">109</a></li> <li><a href="/wiki/NGC_112" title="NGC 112">112</a></li> <li><a href="/wiki/NGC_140" title="NGC 140">140</a></li> <li><a href="/wiki/NGC_149" title="NGC 149">149</a></li> <li><a href="/wiki/NGC_160" title="NGC 160">160</a></li> <li><a href="/wiki/NGC_169" title="NGC 169">169</a></li> <li><a href="/wiki/NGC_181" title="NGC 181">181</a></li> <li><a href="/wiki/NGC_183" title="NGC 183">183</a></li> <li><a href="/wiki/NGC_184" title="NGC 184">184</a></li> <li><a href="/wiki/NGC_214" title="NGC 214">214</a></li> <li><a href="/wiki/NGC_218" title="NGC 218">218</a></li> <li><a href="/wiki/NGC_226" title="NGC 226">226</a></li> <li><a href="/wiki/NGC_228" title="NGC 228">228</a></li> <li><a href="/wiki/NGC_229" title="NGC 229">229</a></li> <li><a href="/wiki/NGC_233" title="NGC 233">233</a></li> <li><a href="/wiki/NGC_243" title="NGC 243">243</a></li> <li><a href="/wiki/NGC_252" title="NGC 252">252</a></li> <li><a href="/wiki/NGC_258" title="NGC 258">258</a></li> <li><a href="/wiki/NGC_260" title="NGC 260">260</a></li> <li><a href="/wiki/NGC_262" title="NGC 262">262</a></li> <li><a href="/wiki/NGC_280" title="NGC 280">280</a></li> <li><a href="/wiki/NGC_304" title="NGC 304">304</a></li> <li><a href="/wiki/NGC_317" title="NGC 317">317</a></li> <li><a href="/wiki/NGC_389" title="NGC 389">389</a></li> <li><a href="/wiki/NGC_393" title="NGC 393">393</a></li> <li><a href="/wiki/NGC_404" title="NGC 404">404</a></li> <li><a href="/wiki/NGC_425" title="NGC 425">425</a></li> <li><a href="/wiki/NGC_431" title="NGC 431">431</a></li> <li><a href="/wiki/NGC_477" title="NGC 477">477</a></li> <li><a href="/wiki/NGC_512" title="NGC 512">512</a></li> <li><a href="/wiki/NGC_513" title="NGC 513">513</a></li> <li><a href="/wiki/NGC_523" title="NGC 523">523</a></li> <li><a href="/wiki/NGC_528" title="NGC 528">528</a></li> <li><i>529</i></li> <li><a href="/wiki/NGC_531" title="NGC 531">531</a></li> <li><a href="/wiki/NGC_536" title="NGC 536">536</a></li> <li><a href="/wiki/NGC_542" title="NGC 542">542</a></li> <li><a href="/wiki/NGC_561" title="NGC 561">561</a></li> <li><a href="/wiki/NGC_605" title="NGC 605">605</a></li> <li><a href="/wiki/NGC_620" title="NGC 620">620</a></li> <li><a href="/wiki/NGC_668" title="NGC 668">668</a></li> <li><a href="/wiki/NGC_679" title="NGC 679">679</a></li> <li><a href="/wiki/NGC_687" title="NGC 687">687</a></li> <li><a href="/wiki/NGC_700" title="NGC 700">700</a></li> <li><a href="/wiki/NGC_703" title="NGC 703">703</a></li> <li><a href="/wiki/NGC_704" title="NGC 704">704</a></li> <li><a href="/wiki/NGC_705" title="NGC 705">705</a></li> <li><a href="/wiki/NGC_708" title="NGC 708">708</a></li> <li><a href="/wiki/NGC_709" title="NGC 709">709</a></li> <li><a href="/wiki/NGC_710" title="NGC 710">710</a></li> <li><a href="/wiki/NGC_712" title="NGC 712">712</a></li> <li><a href="/wiki/NGC_714" title="NGC 714">714</a></li> <li><a href="/wiki/NGC_717" title="NGC 717">717</a></li> <li><a href="/wiki/NGC_721" title="NGC 721">721</a></li> <li><a href="/wiki/NGC_732" title="NGC 732">732</a></li> <li><a href="/wiki/NGC_753" title="NGC 753">753</a></li> <li><a href="/wiki/NGC_759" title="NGC 759">759</a></li> <li><a href="/wiki/NGC_801" title="NGC 801">801</a></li> <li><a href="/wiki/NGC_812" title="NGC 812">812</a></li> <li><a href="/wiki/NGC_834" title="NGC 834">834</a></li> <li><a href="/wiki/NGC_891" title="NGC 891">891</a></li> <li><a href="/wiki/NGC_906" title="NGC 906">906</a></li> <li><a href="/wiki/NGC_910" title="NGC 910">910</a></li> <li><a href="/wiki/NGC_911" title="NGC 911">911</a></li> <li><a href="/wiki/NGC_912" title="NGC 912">912</a></li> <li><a href="/wiki/NGC_913" title="NGC 913">913</a></li> <li><a href="/wiki/NGC_920" title="NGC 920">920</a></li> <li><a href="/wiki/NGC_937" title="NGC 937">937</a></li> <li><a href="/wiki/NGC_980" title="NGC 980">980</a></li> <li><a href="/wiki/NGC_995" title="NGC 995">995</a></li> <li><a href="/wiki/NGC_996" title="NGC 996">996</a></li> <li><a href="/wiki/NGC_999" title="NGC 999">999</a></li> <li><a href="/wiki/NGC_1000" title="NGC 1000">1000</a></li> <li><a href="/wiki/NGC_7640" title="NGC 7640">7640</a></li> <li><a href="/wiki/NGC_7836" title="NGC 7836">7836</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Numbered</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Andromeda_I" title="Andromeda I">I</a></li> <li><a href="/wiki/Andromeda_II" title="Andromeda II">II</a></li> <li><a href="/wiki/Andromeda_III" title="Andromeda III">III</a></li> <li><a href="/wiki/Andromeda_IV" title="Andromeda IV">IV</a></li> <li><a href="/wiki/Andromeda_V" title="Andromeda V">V</a></li> <li><a href="/wiki/Andromeda_VIII" title="Andromeda VIII">VIII</a></li> <li><a href="/wiki/Andromeda_IX" title="Andromeda IX">IX</a></li> <li><a href="/wiki/Andromeda_X" title="Andromeda X">X</a></li> <li><a href="/wiki/Andromeda_XI" title="Andromeda XI">XI</a></li> <li><a href="/wiki/Andromeda_XVIII" title="Andromeda XVIII">XVIII</a></li> <li><a href="/wiki/Andromeda_XIX" title="Andromeda XIX">XIX</a></li> <li><a href="/wiki/Andromeda_XXI" title="Andromeda XXI">XXI</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3C_66A" title="3C 66A">3C 66A</a></li> <li><a href="/wiki/3C_66B" title="3C 66B">3C 66B</a></li> <li><a href="/wiki/Andromeda_Galaxy" title="Andromeda Galaxy">Andromeda Galaxy</a></li> <li><a href="/wiki/Arp_273" title="Arp 273">Arp 273</a></li> <li><a href="/wiki/Donatiello_I" title="Donatiello I">Donatiello I</a></li> <li><a href="/wiki/IC_239" title="IC 239">IC 239</a></li> <li><a href="/wiki/UGC_1840" title="UGC 1840">UGC 1840</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Galaxy_clusters19" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Galaxy_cluster" title="Galaxy cluster">Galaxy clusters</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abell_262" title="Abell 262">Abell 262</a></li> <li><a href="/wiki/NGC_68_group" title="NGC 68 group">NGC 68 group</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Astronomical_events52" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Transient_astronomical_event" class="mw-redirect" title="Transient astronomical event">Astronomical events</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/GRB_101225A" title="GRB 101225A">GRB 101225A</a></li> <li><a href="/wiki/SN_1885A" title="SN 1885A">SN 1885A (S)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: center;"><div><span class="noviewer" typeof="mw:File"><span 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