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Available in 24 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-24" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">24 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/YZ_%D9%82%D9%8A%D8%B7%D8%B3" title="YZ قيطس – Arabic" lang="ar" hreflang="ar" data-title="YZ قيطس" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Asturian" lang="ast" hreflang="ast" data-title="YZ Ceti" data-language-autonym="Asturianu" data-language-local-name="Asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Breton" lang="br" hreflang="br" data-title="YZ Ceti" data-language-autonym="Brezhoneg" data-language-local-name="Breton" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/YZ_de_la_Balena" title="YZ de la Balena – Catalan" lang="ca" hreflang="ca" data-title="YZ de la Balena" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Czech" lang="cs" hreflang="cs" data-title="YZ Ceti" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – German" lang="de" hreflang="de" data-title="YZ Ceti" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Spanish" lang="es" hreflang="es" data-title="YZ Ceti" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%88%D8%A7%DB%8C%E2%80%8C%D8%B2%D8%AF_%D9%86%D9%87%D9%86%DA%AF" title="وای‌زد نهنگ – Persian" lang="fa" hreflang="fa" data-title="وای‌زد نهنگ" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – French" lang="fr" hreflang="fr" data-title="YZ Ceti" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EA%B3%A0%EB%9E%98%EC%9E%90%EB%A6%AC_YZ" title="고래자리 YZ – Korean" lang="ko" hreflang="ko" data-title="고래자리 YZ" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Italian" lang="it" hreflang="it" data-title="YZ Ceti" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/YZ_%D7%91%D7%9C%D7%95%D7%95%D7%99%D7%99%D7%AA%D7%9F" title="YZ בלווייתן – Hebrew" lang="he" hreflang="he" data-title="YZ בלווייתן" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Dutch" lang="nl" hreflang="nl" data-title="YZ Ceti" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%81%8F%E3%81%98%E3%82%89%E5%BA%A7YZ%E6%98%9F" title="くじら座YZ星 – Japanese" lang="ja" hreflang="ja" data-title="くじら座YZ星" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="YZ Ceti" data-language-autonym="Norsk bokmål" data-language-local-name="Norwegian Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Polish" lang="pl" hreflang="pl" data-title="YZ Ceti" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Portuguese" lang="pt" hreflang="pt" data-title="YZ Ceti" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/YZ_%D0%9A%D0%B8%D1%82%D0%B0" title="YZ Кита – Russian" lang="ru" hreflang="ru" data-title="YZ Кита" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Slovak" lang="sk" hreflang="sk" data-title="YZ Ceti" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Finnish" lang="fi" hreflang="fi" data-title="YZ Ceti" data-language-autonym="Suomi" data-language-local-name="Finnish" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Swedish" lang="sv" hreflang="sv" data-title="YZ Ceti" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/YZ_Ceti" title="YZ Ceti – Turkish" lang="tr" hreflang="tr" data-title="YZ Ceti" data-language-autonym="Türkçe" data-language-local-name="Turkish" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/YZ_%D0%9A%D0%B8%D1%82%D0%B0" title="YZ Кита – Ukrainian" lang="uk" hreflang="uk" data-title="YZ Кита" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E9%AF%A8%E9%AD%9A%E5%BA%A7YZ" title="鯨魚座YZ – Chinese" lang="zh" hreflang="zh" data-title="鯨魚座YZ" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1077642#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> 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<nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </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">Star in the constellation Cetus</div> <table class="infobox" style="width: 22em; font-size: 88%; line-height: 1.5em"> <caption style="font-size: 125%; font-weight: bold">YZ Ceti </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:YZ_Ceti.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e9/YZ_Ceti.png/250px-YZ_Ceti.png" decoding="async" width="250" height="191" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e9/YZ_Ceti.png/375px-YZ_Ceti.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e9/YZ_Ceti.png/500px-YZ_Ceti.png 2x" data-file-width="1272" data-file-height="970" /></a></span><br />Location of YZ Ceti, click for larger image.</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      <a href="/wiki/Equinox_(celestial_coordinates)" title="Equinox (celestial coordinates)">Equinox</a> J2000 </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/Cetus" title="Cetus">Cetus</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">01<sup>h</sup> 12<sup>m</sup> 30.6369<sup>s</sup></span><sup id="cite_ref-Gaia3_1-0" class="reference"><a href="#cite_note-Gaia3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</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>−16° 59′ 56.358″<sup id="cite_ref-Gaia3_1-1" class="reference"><a href="#cite_note-Gaia3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</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 magnitude</a> (V)</span> </th> <td>12.03 - 12.18<sup id="cite_ref-vsx_2-0" class="reference"><a href="#cite_note-vsx-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</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_evolution" title="Stellar evolution">Evolutionary stage</a> </th> <td><a href="/wiki/Red_dwarf" title="Red dwarf">red dwarf</a> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><a href="/wiki/Stellar_classification" title="Stellar classification">Spectral type</a> </th> <td>M4.0Ve<sup id="cite_ref-davison_3-0" class="reference"><a href="#cite_note-davison-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</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>+1.430<sup id="cite_ref-ubv_4-0" class="reference"><a href="#cite_note-ubv-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</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>+1.811<sup id="cite_ref-ubv_4-1" class="reference"><a href="#cite_note-ubv-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><a href="/wiki/Variable_star" title="Variable star">Variable type</a> </th> <td><a href="/wiki/Flare_star" title="Flare star">Flare star</a><sup id="cite_ref-gcvs_5-0" class="reference"><a href="#cite_note-gcvs-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</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/Radial_velocity" title="Radial velocity">Radial velocity</a> (R<sub>v</sub>)</b></td><td>+28.09<sup id="cite_ref-rv_6-0" class="reference"><a href="#cite_note-rv-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> km/s</td></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> 1,205.074<sup id="cite_ref-Gaia3_1-2" class="reference"><a href="#cite_note-Gaia3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <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> 637.547<sup id="cite_ref-Gaia3_1-3" class="reference"><a href="#cite_note-Gaia3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <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>269.0573 ± 0.0337 <a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a><sup id="cite_ref-Gaia3_1-4" class="reference"><a href="#cite_note-Gaia3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</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>12.122 ± 0.002 <a href="/wiki/Light-year" title="Light-year">ly</a> <br />(3.7167 ± 0.0005 <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 magnitude</a> (M<sub>V</sub>)</b></td><td>14.30<sup id="cite_ref-davison_3-1" class="reference"><a href="#cite_note-davison-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</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"></th></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Stellar_mass" title="Stellar mass">Mass</a></b></td><td><span class="nowrap"><span data-sort-value="6999130000000000000♠"></span>0.130<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.013</span><sup id="cite_ref-ad_7-0" class="reference"><a href="#cite_note-ad-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Solar_mass" title="Solar mass"><var>M</var><sub>☉</sub></a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Radius" title="Radius">Radius</a></b></td><td><span class="nowrap"><span data-sort-value="6999168000000000000♠"></span>0.168<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.009</span><sup id="cite_ref-ad_7-1" class="reference"><a href="#cite_note-ad-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Solar_radius" title="Solar radius"><var>R</var><sub>☉</sub></a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Luminosity" title="Luminosity">Luminosity</a></b></td><td>0.002195<sup id="cite_ref-Schweitzer2019_8-0" class="reference"><a href="#cite_note-Schweitzer2019-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Solar_luminosity" title="Solar luminosity"><var>L</var><sub>☉</sub></a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Surface_gravity" title="Surface gravity">Surface gravity</a> (log <i>g</i>)</b></td><td>5.20<sup id="cite_ref-Schweitzer2019_8-1" class="reference"><a href="#cite_note-Schweitzer2019-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Centimetre%E2%80%93gram%E2%80%93second_system_of_units" title="Centimetre–gram–second system of units">cgs</a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Effective_temperature" title="Effective temperature">Temperature</a></b></td><td><span class="nowrap"><span data-sort-value="7003305600000000000♠"></span>3056<span style="margin-left:0.3em;margin-right:0.15em;">±</span>60</span><sup id="cite_ref-ad_7-2" class="reference"><a href="#cite_note-ad-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Kelvin" title="Kelvin">K</a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Metallicity" title="Metallicity">Metallicity</a></b> [Fe/H]</td><td><span class="nowrap"><span data-sort-value="3000740000000000000♠"></span>−0.26<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.08</span><sup id="cite_ref-ad_7-3" class="reference"><a href="#cite_note-ad-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Decimal_exponent" class="mw-redirect" title="Decimal exponent">dex</a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Stellar_rotation" title="Stellar rotation">Rotation</a></b></td><td><span class="nowrap"><span data-sort-value="7006590112000000000♠"></span>68.3 <a href="/wiki/Day" title="Day">d</a></span><sup id="cite_ref-jayasinghe_9-0" class="reference"><a href="#cite_note-jayasinghe-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Projected_rotational_velocity" class="mw-redirect" title="Projected rotational velocity">Rotational velocity</a> (<i>v</i> sin <i>i</i>)</b></td><td>3.40<sup id="cite_ref-fouque2018_10-0" class="reference"><a href="#cite_note-fouque2018-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> km/s</td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Stellar_evolution" title="Stellar evolution">Age</a></b></td><td><span class="nowrap"><span data-sort-value="7000500000000000000♠"></span>5.0<span style="margin-left:0.3em;margin-right:0.15em;">±</span>1.0</span><sup id="cite_ref-ad_7-4" class="reference"><a href="#cite_note-ad-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Gigayear" class="mw-redirect" title="Gigayear">Gyr</a></td></tr><tr><th colspan="2" style="text-align: center"></th></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/General_Catalogue_of_Trigonometric_Parallaxes" class="mw-redirect" title="General Catalogue of Trigonometric Parallaxes">GCTP</a> 248.01, <a href="/wiki/Gliese_Catalogue_of_Nearby_Stars" title="Gliese Catalogue of Nearby Stars">GJ</a> 54.1, <a href="/wiki/Hipparcos_Catalogue" class="mw-redirect" title="Hipparcos Catalogue">HIP</a> 5643, <span class="nowrap"><a href="/wiki/Henry_L._Giclas_catalogue" class="mw-redirect" title="Henry L. Giclas catalogue">G</a> 268-135</span>, <a href="/wiki/Luyten" class="mw-redirect" title="Luyten">L</a> 725-32, <a href="/wiki/Luyten_Half-Second_Catalogue" class="mw-redirect" title="Luyten Half-Second Catalogue">LHS</a> 138, <a href="/wiki/Luyten_Two-Tenths_catalogue" class="mw-redirect" title="Luyten Two-Tenths catalogue">LTT</a> 670, <span class="nowrap"><a href="/wiki/2MASS" title="2MASS">2MASS</a> J01123052-1659570</span> </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*+YZ+Cet">data</a></td></tr> </tbody></table> <p><b>YZ Ceti</b> is a <a href="/wiki/Red_dwarf" title="Red dwarf">red dwarf</a> <a href="/wiki/Star" title="Star">star</a> in the <a href="/wiki/Constellation" title="Constellation">constellation</a> <a href="/wiki/Cetus" title="Cetus">Cetus</a>. Although it is relatively close to the <a href="/wiki/Sun" title="Sun">Sun</a> at just 12 <a href="/wiki/Light_year" class="mw-redirect" title="Light year">light years</a>, this star cannot be seen with the naked eye. It is classified as a <a href="/wiki/Flare_star" title="Flare star">flare star</a> that undergoes intermittent fluctuations in <a href="/wiki/Luminosity" title="Luminosity">luminosity</a>. YZ Ceti is about 13 percent the mass of the Sun and 17% of its radius. </p><p>This star is unusually close to <a href="/wiki/Tau_Ceti" title="Tau Ceti">Tau Ceti</a>, a star of <a href="/wiki/Spectral_class" class="mw-redirect" title="Spectral class">spectral class</a> G8. The two are only about 1.6 light years apart,<sup id="cite_ref-solstation_11-0" class="reference"><a href="#cite_note-solstation-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> a little more than a third of the distance from the Sun to the Solar System's nearest neighbor, <a href="/wiki/Proxima_Centauri" title="Proxima Centauri">Proxima Centauri</a>. </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=YZ_Ceti&action=edit&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:YZCetLightCurve.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/YZCetLightCurve.png/220px-YZCetLightCurve.png" decoding="async" width="220" height="143" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/YZCetLightCurve.png/330px-YZCetLightCurve.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bc/YZCetLightCurve.png/440px-YZCetLightCurve.png 2x" data-file-width="1500" data-file-height="975" /></a><figcaption>A <a href="/wiki/Photometric_system#Photometric_letters" title="Photometric system">visual band</a> <a href="/wiki/Light_curve" title="Light curve">light curve</a> for YZ Ceti, adapted from Jayasinghe <i>et al.</i> (2017)<sup id="cite_ref-jayasinghe_9-1" class="reference"><a href="#cite_note-jayasinghe-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></figcaption></figure> <p>YZ Ceti is a <a href="/wiki/Variable_star_designation" class="mw-redirect" title="Variable star designation">variable star designation</a>: the star shows occasional rapid and brief increases in brightness, sometimes reaching magnitude 12.03, caused by eruptions from the surface. This type of variable star is known as a <a href="/wiki/UV_Ceti" class="mw-redirect" title="UV Ceti">UV Ceti</a> star after its first member, or more colloquially as a <a href="/wiki/Flare_star" title="Flare star">flare star</a>. </p><p>YZ Ceti also shows small periodic variations in brightness caused by starspots or chromospheric features moving as the star rotates. This class of variable stars are known as <a href="/wiki/BY_Draconis_variable" title="BY Draconis variable">BY Draconis variables</a>.<sup id="cite_ref-vsx_2-1" class="reference"><a href="#cite_note-vsx-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The periodic variations allow the rotational period of the star to be measured at 68.3 days, although modelling of its planetary system gives a rotational period for the star of 83 days.<sup id="cite_ref-jayasinghe_9-2" class="reference"><a href="#cite_note-jayasinghe-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div style="clear:left;" class=""></div> <div class="mw-heading mw-heading2"><h2 id="Planetary_system">Planetary system</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=YZ_Ceti&action=edit&section=2" title="Edit section: Planetary system"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>On 10 August 2017 three planets were announced to have been discovered around YZ Ceti and a possible fourth sub-Earth planet candidate, still needing confirmation, with 0.472±0.096 Earth masses at an orbital period of 1.04 days. The orbits of the three confirmed planets were determined to be too close to YZ Ceti to be within the star's habitable zone, with equilibrium temperatures ranging from 347–491 K (74–218 °C; 165–424 °F), 299–423 K (26–150 °C; 79–302 °F), and 260–368 K (−13–95 °C; 8–203 °F) for planets b, c, and d, respectively.<sup id="cite_ref-ad_7-5" class="reference"><a href="#cite_note-ad-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>An August 2018 study reexamined the discovery measurements, confirming the orbit of YZ Ceti d, but finding a possibly marginally longer orbital period of YZ Ceti b of 2.02 days rather than 1.97 days, and additionally finding that YZ Ceti c probably orbits in only 0.75 days rather than 3.06 days. If the latter is true, YZ Ceti c would have a mass of only 0.58 Earth masses and a roughly 10% chance of transiting YZ Ceti.<sup id="cite_ref-Robertson2018_12-0" class="reference"><a href="#cite_note-Robertson2018-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> However, a 2020 study did not support the latter conclusion, finding the 0.75-day period to be an alias of the true 3.06-day period. It also did not find evidence for the fourth candidate planet.<sup id="cite_ref-Stock2020_13-0" class="reference"><a href="#cite_note-Stock2020-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p><p>Two 2023 studies detected bursts of radiation in <a href="/wiki/Radio_wave" title="Radio wave">radio</a> wavelengths from YZ Ceti, which is likely associated with interaction of the innermost planet, YZ Ceti b, with the star as well as evidence for the presence of magnetic fields. It may be the first detection of a magnetic field generated by a terrestrial exoplanet.<sup id="cite_ref-Pineda2023_14-0" class="reference"><a href="#cite_note-Pineda2023-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Trigilio2023_15-0" class="reference"><a href="#cite_note-Trigilio2023-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </p> <table class="wikitable" style="text-align:center; margin-left:auto; margin-right:auto;"> <caption>The YZ Ceti planetary system<sup id="cite_ref-Stock2020_13-1" class="reference"><a href="#cite_note-Stock2020-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </caption> <tbody><tr> <th align="center">Companion<br /><small>(in order from star)</small> </th> <th align="center"><a href="/wiki/Mass" title="Mass">Mass</a> </th> <th align="center"><a href="/wiki/Semi-major_and_semi-minor_axes" title="Semi-major and semi-minor axes">Semimajor axis</a><br /><small>(<a href="/wiki/Astronomical_unit" title="Astronomical unit">AU</a>)</small> </th> <th align="center"><a href="/wiki/Orbital_period" title="Orbital period">Orbital period</a><br /><small>(<a href="/wiki/Day" title="Day">days</a>)</small> </th> <th align="center"><a href="/wiki/Orbital_eccentricity" title="Orbital eccentricity">Eccentricity</a> </th> <th align="center"><a href="/wiki/Orbital_inclination" title="Orbital inclination">Inclination</a> </th> <th align="center"><a href="/wiki/Radius" title="Radius">Radius</a> </th></tr> <tr> <td><b>b</b> </td> <td>≥<span class="nowrap"><span data-sort-value="6999700000000000000♠"></span>0.70<span style="margin-left:0.3em;"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1.2em;font-size:85%;text-align:right;">+0.09<br />−0.08</span></span></span> <a href="/wiki/Earth_mass" title="Earth mass"><span class="texhtml mvar" style="font-style:italic;">M</span><sub>🜨</sub></a> </td> <td>0.01634<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">+0.00035</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">−0.00041</sub></span></span> </td> <td>2.02087<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">+0.00007</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">−0.00009</sub></span></span> </td> <td><span class="nowrap"><span data-sort-value="6998600000000000000♠"></span>0.06<span style="margin-left:0.3em;"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1.2em;font-size:85%;text-align:right;">+0.06<br />−0.04</span></span></span> </td> <td>— </td> <td>— </td></tr> <tr> <td><b>c</b> </td> <td>≥<span class="nowrap"><span data-sort-value="7000113999999999999♠"></span>1.14<span style="margin-left:0.3em;"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1.2em;font-size:85%;text-align:right;">+0.11<br />−0.10</span></span></span> <a href="/wiki/Earth_mass" title="Earth mass"><span class="texhtml mvar" style="font-style:italic;">M</span><sub>🜨</sub></a> </td> <td>0.02156<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">+0.00046</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">−0.00054</sub></span></span> </td> <td>3.05989<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">+0.00010</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">−0.00010</sub></span></span> </td> <td>0.00 </td> <td>— </td> <td>— </td></tr> <tr> <td><b>d</b> </td> <td>≥<span class="nowrap"><span data-sort-value="7000109000000000000♠"></span>1.09<span style="margin-left:0.3em;"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1.2em;font-size:85%;text-align:right;">+0.12<br />−0.12</span></span></span> <a href="/wiki/Earth_mass" title="Earth mass"><span class="texhtml mvar" style="font-style:italic;">M</span><sub>🜨</sub></a> </td> <td>0.02851<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">+0.00061</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">−0.00071</sub></span></span> </td> <td>4.65626<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">+0.00028</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">−0.00029</sub></span></span> </td> <td><span class="nowrap"><span data-sort-value="6998700000000000000♠"></span>0.07<span style="margin-left:0.3em;"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1.2em;font-size:85%;text-align:right;">+0.04<br />−0.05</span></span></span> </td> <td>— </td> <td>— </td></tr> </tbody></table> <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=YZ_Ceti&action=edit&section=3" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/List_of_nearest_stars_and_brown_dwarfs" class="mw-redirect" title="List of nearest stars and brown dwarfs">List of nearest stars and brown dwarfs</a></li> <li><a href="/wiki/Tau_Bo%C3%B6tis_b" title="Tau Boötis b">Tau Boötis b</a>, <a href="/wiki/HAT-P-11b" title="HAT-P-11b">HAT-P-11b</a> and <a href="/wiki/HD_209458_b" title="HD 209458 b">HD 209458 b</a>, other extrasolar planets with evidence of magnetic fields</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=YZ_Ceti&action=edit&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-Gaia3-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Gaia3_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Gaia3_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Gaia3_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Gaia3_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-Gaia3_1-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text"><style 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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 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"Radial Velocities for 889 Late-Type Stars". <i>The Astrophysical Journal Supplement Series</i>. <b>141</b> (2): 503–522. <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/astro-ph/0112477">astro-ph/0112477</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2002ApJS..141..503N">2002ApJS..141..503N</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F340570">10.1086/340570</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:51814894">51814894</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal+Supplement+Series&rft.atitle=Radial+Velocities+for+889+Late-Type+Stars&rft.volume=141&rft.issue=2&rft.pages=503-522&rft.date=2002&rft_id=info%3Aarxiv%2Fastro-ph%2F0112477&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A51814894%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1086%2F340570&rft_id=info%3Abibcode%2F2002ApJS..141..503N&rft.aulast=Nidever&rft.aufirst=David+L&rft.au=Marcy%2C+Geoffrey+W&rft.au=Butler%2C+R.+Paul&rft.au=Fischer%2C+Debra+A&rft.au=Vogt%2C+Steven+S&rfr_id=info%3Asid%2Fen.wikipedia.org%3AYZ+Ceti" class="Z3988"></span></span> </li> <li id="cite_note-ad-7"><span class="mw-cite-backlink">^ <a href="#cite_ref-ad_7-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-ad_7-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-ad_7-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-ad_7-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-ad_7-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-ad_7-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAstudillo-DefruDíazBonfilsAlmenara2017" class="citation journal cs1">Astudillo-Defru, Nicola; Díaz, Rodrigo F.; Bonfils, Xavier; Almenara, José M.; Delisle, Jean-Baptiste; Bouchy, François; Delfosse, Xavier; Forveille, Thierry; Lovis, Christophe; Mayor, Michel; Murgas, Felipe; Pepe, Francesco; Santos, Nuno C.; Ségransan, Damien; Udry, Stéphane; Wünsche, Anaël (2017). "The HARPS search for southern extra-solar planets. XLII. A system of Earth-mass planets around the nearby M dwarf YZ Ceti". <i>Astronomy & Astrophysics</i>. <b>605</b>: L11. <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/1708.03336">1708.03336</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2017A&A...605L..11A">2017A&A...605L..11A</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1051%2F0004-6361%2F201731581">10.1051/0004-6361/201731581</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:119393757">119393757</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astronomy+%26+Astrophysics&rft.atitle=The+HARPS+search+for+southern+extra-solar+planets.+XLII.+A+system+of+Earth-mass+planets+around+the+nearby+M+dwarf+YZ+Ceti&rft.volume=605&rft.pages=L11&rft.date=2017&rft_id=info%3Aarxiv%2F1708.03336&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A119393757%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1051%2F0004-6361%2F201731581&rft_id=info%3Abibcode%2F2017A%26A...605L..11A&rft.aulast=Astudillo-Defru&rft.aufirst=Nicola&rft.au=D%C3%ADaz%2C+Rodrigo+F.&rft.au=Bonfils%2C+Xavier&rft.au=Almenara%2C+Jos%C3%A9+M.&rft.au=Delisle%2C+Jean-Baptiste&rft.au=Bouchy%2C+Fran%C3%A7ois&rft.au=Delfosse%2C+Xavier&rft.au=Forveille%2C+Thierry&rft.au=Lovis%2C+Christophe&rft.au=Mayor%2C+Michel&rft.au=Murgas%2C+Felipe&rft.au=Pepe%2C+Francesco&rft.au=Santos%2C+Nuno+C.&rft.au=S%C3%A9gransan%2C+Damien&rft.au=Udry%2C+St%C3%A9phane&rft.au=W%C3%BCnsche%2C+Ana%C3%ABl&rfr_id=info%3Asid%2Fen.wikipedia.org%3AYZ+Ceti" class="Z3988"></span></span> </li> <li id="cite_note-Schweitzer2019-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-Schweitzer2019_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Schweitzer2019_8-1"><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="CITEREFSchweitzerPasseggerCifuentesBéjar2019" class="citation journal cs1">Schweitzer, A.; et al. 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Different roads to radii and masses of the target stars". <i>Astronomy & Astrophysics</i>. <b>625</b>: 16. <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/1904.03231">1904.03231</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2019A&A...625A..68S">2019A&A...625A..68S</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1051%2F0004-6361%2F201834965">10.1051/0004-6361/201834965</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:102351979">102351979</a>. A68.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astronomy+%26+Astrophysics&rft.atitle=The+CARMENES+search+for+exoplanets+around+M+dwarfs.+Different+roads+to+radii+and+masses+of+the+target+stars&rft.volume=625&rft.pages=16&rft.date=2019-05&rft_id=info%3Aarxiv%2F1904.03231&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A102351979%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1051%2F0004-6361%2F201834965&rft_id=info%3Abibcode%2F2019A%26A...625A..68S&rft.aulast=Schweitzer&rft.aufirst=A.&rft.au=Passegger%2C+V.+M.&rft.au=Cifuentes%2C+C.&rft.au=B%C3%A9jar%2C+Victor+J.+S.&rft.au=Cort%C3%A9s-Contreras%2C+M.&rft.au=Caballero%2C+Jos%C3%A9+A.&rft.au=del+Burgo%2C+Carlos&rft.au=Czesla%2C+Stefan&rft.au=K%C3%BCrster%2C+Martin&rft.au=Montes%2C+David&rft.au=Zapatero-Osorio%2C+Mar%C3%ADa+Rosa&rft.au=Ribas%2C+Ignasi&rft.au=Reiners%2C+Ansgar&rft.au=Quirrenbach%2C+Andreas&rft.au=Amado%2C+Pedro+J.&rft.au=Aceituno%2C+J.&rft.au=Anglada-Escud%C3%A9%2C+Guillem&rft.au=Bauer%2C+Florian+F.&rft.au=Dreizler%2C+Stefan&rft.au=Jeffers%2C+Sandra+V.&rft.au=Guenther%2C+E.+W.&rft.au=Henning%2C+Thomas+K.&rft.au=Kaminski%2C+Adrian&rft.au=Lafarga%2C+M.&rft.au=Marfil%2C+E.&rft.au=Morales%2C+Juan+Carlos&rft.au=Schmitt%2C+J%C3%BCrgen+H.+M.+M.&rft.au=Seifert%2C+Walter&rft.au=Solano%2C+E.&rft.au=Tabernero%2C+H.+M.&rft.au=Zechmeister%2C+Mathias&rfr_id=info%3Asid%2Fen.wikipedia.org%3AYZ+Ceti" class="Z3988"></span></span> </li> <li id="cite_note-jayasinghe-9"><span class="mw-cite-backlink">^ <a href="#cite_ref-jayasinghe_9-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-jayasinghe_9-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-jayasinghe_9-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFJayasingheStanekKochanekHoloien2017" class="citation journal cs1">Jayasinghe, T; Stanek, K. Z; Kochanek, C. S; Holoien, T. W.-S; Shields, J. V; Thompson, T. A; Shappee, B. J; Prieto, J. L; Dong, Subo (2017). "ASAS-SN V-band Light Curve of Multi-Planet M-dwarf Host YZ Cet Reveals a Rotation Period of 68 Days". <i>The Astronomer's Telegram</i>. <b>0643</b>: 1. <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/2017ATel10643....1J">2017ATel10643....1J</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Astronomer%27s+Telegram&rft.atitle=ASAS-SN+V-band+Light+Curve+of+Multi-Planet+M-dwarf+Host+YZ+Cet+Reveals+a+Rotation+Period+of+68+Days&rft.volume=0643&rft.pages=1&rft.date=2017&rft_id=info%3Abibcode%2F2017ATel10643....1J&rft.aulast=Jayasinghe&rft.aufirst=T&rft.au=Stanek%2C+K.+Z&rft.au=Kochanek%2C+C.+S&rft.au=Holoien%2C+T.+W.-S&rft.au=Shields%2C+J.+V&rft.au=Thompson%2C+T.+A&rft.au=Shappee%2C+B.+J&rft.au=Prieto%2C+J.+L&rft.au=Dong%2C+Subo&rfr_id=info%3Asid%2Fen.wikipedia.org%3AYZ+Ceti" class="Z3988"></span></span> </li> <li id="cite_note-fouque2018-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-fouque2018_10-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFouquéMoutouMaloMartioli2018" class="citation journal cs1">Fouqué, Pascal; et al. (April 2018). <a rel="nofollow" class="external text" href="https://doi.org/10.1093%2Fmnras%2Fstx3246">"SPIRou Input Catalogue: global properties of 440 M dwarfs observed with ESPaDOnS at CFHT"</a>. <i>Monthly Notices of the Royal Astronomical Society</i>. <b>475</b> (2): 1960–1986. <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/1712.04490">1712.04490</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2018MNRAS.475.1960F">2018MNRAS.475.1960F</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1093%2Fmnras%2Fstx3246">10.1093/mnras/stx3246</a></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Monthly+Notices+of+the+Royal+Astronomical+Society&rft.atitle=SPIRou+Input+Catalogue%3A+global+properties+of+440+M+dwarfs+observed+with+ESPaDOnS+at+CFHT&rft.volume=475&rft.issue=2&rft.pages=1960-1986&rft.date=2018-04&rft_id=info%3Aarxiv%2F1712.04490&rft_id=info%3Adoi%2F10.1093%2Fmnras%2Fstx3246&rft_id=info%3Abibcode%2F2018MNRAS.475.1960F&rft.aulast=Fouqu%C3%A9&rft.aufirst=Pascal&rft.au=Moutou%2C+Claire&rft.au=Malo%2C+Lison&rft.au=Martioli%2C+Eder&rft.au=Lim%2C+Olivia&rft.au=Rajpurohit%2C+Arvind&rft.au=Artigau%2C+Etienne&rft.au=Delfosse%2C+Xavier&rft.au=Donati%2C+Jean-Fran%C3%A7ois&rft.au=Forveille%2C+Thierry&rft.au=Morin%2C+Julien&rft.au=Allard%2C+France&rft.au=Delage%2C+Rapha%C3%ABl&rft.au=Doyon%2C+Ren%C3%A9&rft.au=H%C3%A9brard%2C+Elodie&rft.au=Neves%2C+Vasco&rft_id=https%3A%2F%2Fdoi.org%2F10.1093%252Fmnras%252Fstx3246&rfr_id=info%3Asid%2Fen.wikipedia.org%3AYZ+Ceti" class="Z3988"></span></span> </li> <li id="cite_note-solstation-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-solstation_11-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.solstation.com/stars/tau-ceti.htm">Page of Tau Ceti</a>, see the chapter of <i>Closest Neighbors</i>, for YZ Ceti.</span> </li> <li id="cite_note-Robertson2018-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-Robertson2018_12-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRobertson2018" class="citation journal cs1">Robertson, Paul (2018). <a rel="nofollow" class="external text" href="https://doi.org/10.3847%2F2041-8213%2Faadc0b">"Aliasing in the Radial Velocities of YZ Ceti: An Ultra-short Period for YZ Ceti c?"</a>. <i>The Astrophysical Journal</i>. <b>864</b> (2): L28. <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/1808.07059">1808.07059</a></span>. <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2018ApJ...864L..28R">2018ApJ...864L..28R</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/10.3847%2F2041-8213%2Faadc0b">10.3847/2041-8213/aadc0b</a></span>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:119373170">119373170</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Astrophysical+Journal&rft.atitle=Aliasing+in+the+Radial+Velocities+of+YZ+Ceti%3A+An+Ultra-short+Period+for+YZ+Ceti+c%3F&rft.volume=864&rft.issue=2&rft.pages=L28&rft.date=2018&rft_id=info%3Aarxiv%2F1808.07059&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A119373170%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.3847%2F2041-8213%2Faadc0b&rft_id=info%3Abibcode%2F2018ApJ...864L..28R&rft.aulast=Robertson&rft.aufirst=Paul&rft_id=https%3A%2F%2Fdoi.org%2F10.3847%252F2041-8213%252Faadc0b&rfr_id=info%3Asid%2Fen.wikipedia.org%3AYZ+Ceti" class="Z3988"></span></span> </li> <li id="cite_note-Stock2020-13"><span class="mw-cite-backlink">^ <a href="#cite_ref-Stock2020_13-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Stock2020_13-1"><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="CITEREFStockKemmerReffertTrifonov2020" class="citation journal cs1">Stock, S.; et al. 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"Star-Planet Interaction at radio wavelengths in YZ Ceti: Inferring planetary magnetic field". <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/2305.00809">2305.00809</a></span> [<a rel="nofollow" class="external text" href="https://arxiv.org/archive/astro-ph.EP">astro-ph.EP</a>].</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=preprint&rft.jtitle=arXiv&rft.atitle=Star-Planet+Interaction+at+radio+wavelengths+in+YZ+Ceti%3A+Inferring+planetary+magnetic+field&rft.date=2023-05&rft_id=info%3Aarxiv%2F2305.00809&rft.aulast=Trigilio&rft.aufirst=Corrado&rft.au=Biswas%2C+Ayan&rfr_id=info%3Asid%2Fen.wikipedia.org%3AYZ+Ceti" class="Z3988"></span></span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-16">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://earthsky.org/space/magnetic-field-exoplanets-yz-ceti-b/">"A magnetic field on a nearby Earth-sized exoplanet?"</a>. <i>earthsky.org</i>. 2023-04-10<span class="reference-accessdate">. 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title="Quanta Magazine">Quanta Magazine</a></i>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Quanta+Magazine&rft.atitle=Exoplanets+Could+Help+Us+Learn+How+Planets+Make+Magnetism&rft.date=2023-08-07&rft.aulast=O%27Callaghan&rft.aufirst=Jonathan&rft_id=https%3A%2F%2Fwww.quantamagazine.org%2Fexoplanets-could-help-us-learn-how-planets-make-magnetism-20230807%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AYZ+Ceti" 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=YZ_Ceti&action=edit&section=5" 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" 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style="font-size:85%;"><a href="/wiki/Template:2016_in_space" title="Template:2016 in space">2016</a></span> </div> <div style="float: right;"><span style="font-size:85%;"><a href="/wiki/Template:2018_in_space" title="Template:2018 in space">2018</a></span> » </div></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/2017_in_spaceflight" title="2017 in spaceflight">Space probe launches</a> <span typeof="mw:File"><a href="/wiki/Category:Space_probes_launched_in_2017" title="Category:Space probes launched in 2017"><img alt="Space probes launched in 2017" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/15px-Symbol_category_class.svg.png" decoding="async" width="15" height="15" 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/30px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ASTERIA_(spacecraft)" title="ASTERIA (spacecraft)">ASTERIA</a> (miniature space telescope; August 2017)</li></ul> </div></td><td class="noviewer navbox-image" rowspan="7" style="width:1px;padding:0 0 0 2px;padding-left: 0.5em;"><div><span typeof="mw:File"><a href="/wiki/File:PIA21423_-_Surface_of_TRAPPIST-1f.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/PIA21423_-_Surface_of_TRAPPIST-1f.jpg/150px-PIA21423_-_Surface_of_TRAPPIST-1f.jpg" decoding="async" width="150" height="84" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/PIA21423_-_Surface_of_TRAPPIST-1f.jpg/225px-PIA21423_-_Surface_of_TRAPPIST-1f.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0e/PIA21423_-_Surface_of_TRAPPIST-1f.jpg/300px-PIA21423_-_Surface_of_TRAPPIST-1f.jpg 2x" data-file-width="4534" data-file-height="2550" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:Eso1733s_Artist%27s_impression_of_merging_neutron_stars.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Eso1733s_Artist%27s_impression_of_merging_neutron_stars.jpg/150px-Eso1733s_Artist%27s_impression_of_merging_neutron_stars.jpg" decoding="async" width="150" height="98" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Eso1733s_Artist%27s_impression_of_merging_neutron_stars.jpg/225px-Eso1733s_Artist%27s_impression_of_merging_neutron_stars.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c8/Eso1733s_Artist%27s_impression_of_merging_neutron_stars.jpg/300px-Eso1733s_Artist%27s_impression_of_merging_neutron_stars.jpg 2x" data-file-width="6152" data-file-height="4026" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:Artist%27s_impression_of_%CA%BBOumuamua.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Artist%27s_impression_of_%CA%BBOumuamua.jpg/150px-Artist%27s_impression_of_%CA%BBOumuamua.jpg" decoding="async" width="150" height="98" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Artist%27s_impression_of_%CA%BBOumuamua.jpg/225px-Artist%27s_impression_of_%CA%BBOumuamua.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Artist%27s_impression_of_%CA%BBOumuamua.jpg/300px-Artist%27s_impression_of_%CA%BBOumuamua.jpg 2x" data-file-width="2522" data-file-height="1649" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Impact_event" title="Impact event">Impact 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/List_of_bolides_in_2017" title="List of bolides in 2017">Bolides in 2017</a></li> <li><a href="/wiki/2017_China_bolide" title="2017 China bolide">2017 China bolide</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Selected <a href="/wiki/Near-Earth_object" title="Near-Earth object">NEOs</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_asteroid_close_approaches_to_Earth_in_2017" title="List of asteroid close approaches to Earth in 2017">Asteroid close approaches</a></li> <li><span class="nowrap"><a href="/wiki/2017_AG13" title="2017 AG13">2017 AG<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">13</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2017_BS5" title="2017 BS5">2017 BS<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">5</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2017_BQ6" title="2017 BQ6">2017 BQ<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">6</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2016_WF9" title="2016 WF9">2016 WF<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">9</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2014_JO25" class="mw-redirect" title="2014 JO25">2014 JO<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">25</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2017_OO1" title="2017 OO1">2017 OO<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">1</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2017_QP1" title="2017 QP1">2017 QP<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">1</span></span></a></span></li> <li><a href="/wiki/3122_Florence" title="3122 Florence">3122 Florence</a></li> <li><span class="nowrap"><a href="/wiki/2017_SX17" title="2017 SX17">2017 SX<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">17</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2012_TC4" title="2012 TC4">2012 TC<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">4</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2017_TD6" title="2017 TD6">2017 TD<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">6</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2017_VL2" title="2017 VL2">2017 VL<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">2</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2017_VW13" title="2017 VW13">2017 VW<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">13</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2017_XO2" title="2017 XO2">2017 XO<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">2</span></span></a></span></li> <li><a href="/wiki/3200_Phaethon" title="3200 Phaethon">3200 Phaethon</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_exoplanets_discovered_in_2017" title="List of exoplanets discovered in 2017">Exoplanets</a> <span typeof="mw:File"><a href="/wiki/Category:Exoplanets_discovered_in_2017" title="Category:Exoplanets discovered in 2017"><img alt="Exoplanets discovered in 2017" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/15px-Symbol_category_class.svg.png" decoding="async" width="15" height="15" 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/30px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span></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/HATS-36b" title="HATS-36b">HATS-36b</a></li> <li><a href="/wiki/HD_113996_b" class="mw-redirect" title="HD 113996 b">HD 113996 b</a></li> <li><a href="/wiki/KELT-18b" title="KELT-18b">KELT-18b</a></li> <li><a href="/wiki/Kepler-19d" class="mw-redirect" title="Kepler-19d">Kepler-19d</a></li> <li><a href="/wiki/Kepler-80" title="Kepler-80">Kepler-80g</a></li> <li><a href="/wiki/Kepler-90i" title="Kepler-90i">Kepler-90i</a></li> <li><a href="/wiki/K2-66b" title="K2-66b">K2-66b</a></li> <li><a href="/wiki/K2-138b" title="K2-138b">K2-138b</a></li> <li><a href="/wiki/LHS_1140_b" title="LHS 1140 b">LHS 1140 b</a></li> <li><a href="/wiki/Luyten_b" title="Luyten b">Luyten b</a></li> <li><a href="/wiki/NGTS-1b" title="NGTS-1b">NGTS-1b</a></li> <li><a href="/wiki/OGLE-2016-BLG-1190Lb" title="OGLE-2016-BLG-1190Lb">OGLE-2016-BLG-1190Lb</a></li> <li><a href="/wiki/OGLE-2016-BLG-1195Lb" title="OGLE-2016-BLG-1195Lb">OGLE-2016-BLG-1195Lb</a></li> <li><a href="/wiki/Ross_128_b" title="Ross 128 b">Ross 128 b</a></li> <li><a href="/wiki/Tau_Ceti#Planetary_system" title="Tau Ceti">Tau Ceti</a> <ul><li><a href="/wiki/Tau_Ceti_g" class="mw-redirect" title="Tau Ceti g">g</a></li> <li><a href="/wiki/Tau_Ceti_h" class="mw-redirect" title="Tau Ceti h">h</a></li></ul></li> <li><a href="/wiki/TRAPPIST-1" title="TRAPPIST-1">TRAPPIST-1</a> <ul><li><a href="/wiki/TRAPPIST-1e" title="TRAPPIST-1e">e</a></li> <li><a href="/wiki/TRAPPIST-1f" title="TRAPPIST-1f">f</a></li> <li><a href="/wiki/TRAPPIST-1g" title="TRAPPIST-1g">g</a></li> <li><a href="/wiki/TRAPPIST-1h" title="TRAPPIST-1h">h</a></li></ul></li> <li>dark <a href="/wiki/Albedo" title="Albedo">albedo</a> of <a href="/wiki/WASP-12b" title="WASP-12b">WASP-12b</a></li> <li><a href="/wiki/WASP-107b" title="WASP-107b">WASP-107b</a></li> <li><a class="mw-selflink selflink">YZ Ceti</a> <ul><li>b</li> <li>c</li> <li>d</li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Discoveries</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/GW170104" title="GW170104">GW170104</a></li> <li><a href="/wiki/Haumea#Ring" title="Haumea">Ring of Haumea</a></li> <li>2 <a href="/wiki/Moons_of_Jupiter" title="Moons of Jupiter">moons of Jupiter</a></li> <li><a href="/wiki/GW170608" title="GW170608">GW170608</a></li> <li><a href="/wiki/Saraswati_Supercluster" title="Saraswati Supercluster">Saraswati Supercluster</a></li> <li><a href="/wiki/GW170814" title="GW170814">GW170814</a></li> <li><a href="/wiki/IGR_J17329-2731" title="IGR J17329-2731">IGR J17329-2731</a> (X-ray source)</li> <li><a href="/wiki/GW170817" title="GW170817">GW170817</a> <a href="/wiki/Neutron_star_merger" title="Neutron star merger">neutron star merger</a></li> <li><a href="/wiki/%CA%BBOumuamua" title="ʻOumuamua">ʻOumuamua</a></li> <li><a href="/wiki/ULAS_J1342%2B0928" title="ULAS J1342+0928">ULAS J1342+0928</a></li> <li><a href="/wiki/RZ_Piscium" title="RZ Piscium">RZ Piscium</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Comets <span typeof="mw:File"><a href="/wiki/Category:Comets_in_2017" title="Category:Comets in 2017"><img alt="Comets in 2017" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/15px-Symbol_category_class.svg.png" decoding="async" width="15" height="15" 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/30px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span></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/C/2016_U1_(NEOWISE)" title="C/2016 U1 (NEOWISE)">C/2016 U1 (NEOWISE)</a></li> <li><a href="/wiki/41P/Tuttle%E2%80%93Giacobini%E2%80%93Kres%C3%A1k" title="41P/Tuttle–Giacobini–Kresák">41P/Tuttle–Giacobini–Kresák</a></li> <li><a href="/wiki/103P/Hartley" title="103P/Hartley">103P/Hartley</a></li> <li><a href="/wiki/C/2015_ER61_(PanSTARRS)" title="C/2015 ER61 (PanSTARRS)">C/2015 ER<sub>61</sub> (PanSTARRS)</a></li> <li><a href="/wiki/C/2015_V2_(Johnson)" title="C/2015 V2 (Johnson)">C/2015 V2 (Johnson)</a></li> <li><a href="/wiki/(300163)_2006_VW139" title="(300163) 2006 VW139">P/2006 VW139</a></li> <li><a href="/wiki/C/2017_O1_(ASASSN)" title="C/2017 O1 (ASASSN)">C/2017 O1 (ASASSN)</a></li> <li><a href="/wiki/96P/Machholz" title="96P/Machholz">96P/Machholz</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Space exploration</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/Cassini_retirement" title="Cassini retirement"><i>Cassini</i> retirement</a> (impacted into Saturn; Sep 2017)</li> <li><a href="/wiki/OSIRIS-REx" title="OSIRIS-REx">OSIRIS-REx</a> (Earth gravity assist; Sep 2017)</li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><span class="nowrap"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/32px-Earth-moon.jpg" decoding="async" width="32" height="26" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/48px-Earth-moon.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/64px-Earth-moon.jpg 2x" data-file-width="3000" data-file-height="2400" /></span></span> </span><a href="/wiki/Portal:Outer_space" title="Portal:Outer space">Outer space portal</a></li> <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:2016_in_outer_space" title="Category:2016 in outer space">Category:2016 in outer space</a> — <b><a href="/wiki/Category:2017_in_outer_space" title="Category:2017 in outer space">Category:2017 in outer space</a></b> — <a href="/wiki/Category:2018_in_outer_space" title="Category:2018 in outer space">Category:2018 in outer space</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="←_Celestial_objects_within_15–20_light-years" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed 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:Star_systems_within_15%E2%80%9320_light-years" title="Template:Star systems within 15–20 light-years"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Star_systems_within_15%E2%80%9320_light-years" title="Template talk:Star systems within 15–20 light-years"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Star_systems_within_15%E2%80%9320_light-years" title="Special:EditPage/Template:Star systems within 15–20 light-years"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="←_Celestial_objects_within_15–20_light-years" style="font-size:114%;margin:0 4em"><a href="/wiki/Template:Star_systems_within_10%E2%80%9315_light-years" title="Template:Star systems within 10–15 light-years">←</a> <a href="/wiki/Template:Star_systems_within_15%E2%80%9320_light-years" title="Template:Star systems within 15–20 light-years">Celestial objects within 15–20 light-years</a>    </div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" 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="Primary_member_type" scope="row" class="navbox-group" style="width:17em"><span class="nobold"><abbr title="Primary member of a system is the brightest one (and, in most cases, also the most massive one).">Primary</abbr> member <a href="/wiki/Stellar_classification" title="Stellar classification">type</a></span></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><td class="navbox-abovebelow" colspan="2" style="text-align:left;"><div id="Celestial_objects_by_systems.">Celestial objects by systems.</div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" 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="Subgiant_stars" scope="row" class="navbox-group" style="width:8em"><a href="/wiki/Subgiant" title="Subgiant">Subgiant 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:6.85em;line-height:0.7em;">G-type</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/Delta_Pavonis" title="Delta Pavonis">Delta Pavonis</a> (19.893<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.015 ly)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" 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="Main-sequencestars" scope="row" class="navbox-group" style="width:8em;line-height:0.7em;"><a href="/wiki/Main_sequence" title="Main sequence">Main-sequence<br />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:6.85em;line-height:0.7em;"><a href="/wiki/A-type_main-sequence_star" title="A-type main-sequence star">A-type</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/Altair" title="Altair">Altair (Alpha Aquilae)</a> (16.730<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.049 ly)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6.85em;line-height:0.7em;"><a href="/wiki/G-type_main-sequence_star" title="G-type main-sequence star">G-type</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/Sigma_Draconis" title="Sigma Draconis">Alsafi (Sigma Draconis)</a> (18.7993<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0081 ly)</li> <li><a href="/wiki/Eta_Cassiopeiae" title="Eta Cassiopeiae">Achird (Eta Cassiopeiae)</a> (19.3314<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0025 ly)</li> <li>K-type main-sequence star B</li> <li><a href="/wiki/82_G._Eridani" title="82 G. Eridani">e (82 G.) Eridani</a> (19.7045<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0093 ly)</li> <li>3 (6?) planets: b, c?, d (c), e?, f?, g?, d</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6.85em;line-height:0.7em;"><a href="/wiki/K-type_main-sequence_star" title="K-type main-sequence star">K-type</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/Groombridge_1618" title="Groombridge 1618">Groombridge 1618</a> (15.8857<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0017 ly)</li> <li><a href="/wiki/40_Eridani" title="40 Eridani">Omicron<sup>2</sup> (40) Eridani</a> (16.3330<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0042 ly)</li> <li>white dwarf B</li> <li>red dwarf C</li> <li><a href="/wiki/70_Ophiuchi" title="70 Ophiuchi">70 Ophiuchi</a> (16.7074<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0087 ly)</li> <li>K-type main-sequence star B</li> <li><a href="/wiki/Gliese_570" title="Gliese 570">Gliese 570</a> (19.1987<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0074 ly)</li> <li>2 red dwarfs: B, C</li> <li>T-type brown dwarf D</li> <li><a href="/wiki/36_Ophiuchi" title="36 Ophiuchi">36 Ophiuchi</a> (19.4185<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0036 ly)</li> <li>2 K-type main-sequence stars: B, C</li> <li><a href="/wiki/HR_7703" title="HR 7703">HR 7703</a> (19.609<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.013 ly)</li> <li>red dwarf B</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:6.85em;line-height:0.7em;"><a href="/wiki/Red_dwarf" title="Red dwarf">M-type<br /><span class="nobold">(red dwarfs)</span></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/GJ_1245" title="GJ 1245">GJ 1245</a> (15.2001<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0034 ly)</li> <li>2 red dwarfs: B, C</li> <li><a href="/wiki/Gliese_876" title="Gliese 876">Gliese 876</a> (15.2382<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0025 ly)</li> <li>4 planets: <a href="/wiki/Gliese_876_d" title="Gliese 876 d">d</a>, <a href="/wiki/Gliese_876_c" title="Gliese 876 c">c</a>, <a href="/wiki/Gliese_876_b" title="Gliese 876 b">b</a>, <a href="/wiki/Gliese_876_e" title="Gliese 876 e">e</a></li> <li><a href="/wiki/LHS_288" title="LHS 288">LHS 288</a> (15.7586<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0034 ly)</li> <li><a href="/wiki/GJ_1002" title="GJ 1002">GJ 1002</a> (15.8060<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0036 ly)</li> <li>2 planets: <a href="/wiki/GJ_1002_b" title="GJ 1002 b">b</a>, c</li> <li><a href="/wiki/Gliese_412" title="Gliese 412">Gliese 412</a> (15.9969<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0026 ly)</li> <li>red dwarf B</li> <li><a href="/wiki/AD_Leonis" title="AD Leonis">AD Leonis</a> (16.1939<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0024 ly)</li> <li><a href="/wiki/Gliese_832" title="Gliese 832">Gliese 832</a> (16.2005<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0019 ly)</li> <li>planet <a href="/wiki/Gliese_832_b" title="Gliese 832 b">b</a></li> <li><a href="/wiki/Gliese_682" title="Gliese 682">Gliese 682</a> (16.3328<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0026 ly)</li> <li>2? planets: b?, c?</li> <li><a href="/wiki/EV_Lacertae" title="EV Lacertae">EV Lacertae</a> (16.4761<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0018 ly)</li> <li><a href="/wiki/G_9-38" title="G 9-38">G 9-38</a> (16.800<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.011 ly)</li> <li>red dwarf B</li> <li><a href="/wiki/GJ_3379" title="GJ 3379">GJ 3379</a> (16.9861<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0027 ly)</li> <li><a href="/wiki/Gliese_445" title="Gliese 445">Gliese 445</a> (17.1368<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0017 ly)</li> <li><a href="/wiki/2MASS_J15404342%E2%88%925101357" title="2MASS J15404342−5101357">2M1540</a> (17.3738<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0046 ly)</li> <li><a href="/wiki/GJ_3323" title="GJ 3323">GJ 3323</a> (17.5309<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0026 ly)</li> <li>2 planets: b, c</li> <li><a href="/wiki/Gliese_526" title="Gliese 526">Gliese 526</a> (17.7263<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0024 ly)</li> <li><a href="/wiki/Stein_2051" title="Stein 2051">Stein 2051</a> (17.9925<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0020 ly)</li> <li>white dwarf B</li> <li><a href="/wiki/Gliese_251" title="Gliese 251">Gliese 251</a> (18.2146<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0028 ly)</li> <li>planet b</li> <li><a href="/wiki/LP_816-60" title="LP 816-60">LP 816-60</a> (18.3305<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0038 ly)</li> <li><a href="/wiki/LSR_J1835%2B3259" title="LSR J1835+3259">LSR J1835+3259</a> (18.5534<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0049 ly)</li> <li><a href="/wiki/Gliese_205" title="Gliese 205">Gliese 205</a> (18.6042<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0022 ly)</li> <li><a href="/wiki/Gliese_229" title="Gliese 229">Gliese 229</a> (18.7906<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0018 ly)</li> <li>T-type brown dwarf B</li> <li>2 planets: Ab, Ac</li> <li><a href="/wiki/Ross_47" title="Ross 47">Ross 47</a> (18.8883<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0031 ly)</li> <li><a href="/wiki/Gliese_693" title="Gliese 693">Gliese 693</a> (19.2078<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0053 ly)</li> <li><a href="/wiki/Gliese_754" title="Gliese 754">Gliese 754</a> (19.2724<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0067 ly)</li> <li><a href="/wiki/Gliese_908" title="Gliese 908">Gliese 908</a> (19.2745<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0032 ly)</li> <li><a href="/wiki/Gliese_752" title="Gliese 752">Gliese 752</a> (19.2922<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0027 ly)</li> <li>red dwarf <a href="/wiki/VB_10" title="VB 10">B (vB 10)</a></li> <li>planet Ab</li> <li><a href="/wiki/Gliese_588" title="Gliese 588">Gliese 588</a> (19.2996<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0031 ly)</li> <li>2? planets: b?, c?</li> <li><a href="/wiki/YZ_Canis_Minoris" title="YZ Canis Minoris">YZ Canis Minoris</a> (19.5330<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0040 ly)</li> <li><a href="/wiki/GJ_1005" title="GJ 1005">GJ 1005</a> (19.577<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.035 ly)</li> <li>red dwarf B</li> <li><a href="/wiki/Gliese_268" title="Gliese 268">Gliese 268</a> (19.7414<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0076 ly)</li> <li>red dwarf B</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" 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="Degeneratestars" scope="row" class="navbox-group" style="width:8em;line-height:0.7em;"><a href="/wiki/Compact_star" class="mw-redirect" title="Compact star">Degenerate<br />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 id="White_dwarfs" scope="row" class="navbox-group" style="width:6.85em;line-height:0.7em;"><a href="/wiki/White_dwarf" title="White dwarf">White dwarfs</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gliese_440" title="Gliese 440">Gliese 440</a> (15.1226<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.0013 ly)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" 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="Brown_dwarfs" scope="row" class="navbox-group" style="width:10em"><a href="/wiki/Brown_dwarf" title="Brown dwarf">Brown dwarfs</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 id="L-type" scope="row" class="navbox-group" style="width:4.85em"><a href="/wiki/Brown_dwarf#Spectral_class_L" title="Brown dwarf">L-type</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/DENIS_0255%E2%88%924700" title="DENIS 0255−4700">DENIS 0255−4700</a> (15.877<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.014 ly)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:4.85em"><a href="/wiki/Brown_dwarf#Spectral_class_T" title="Brown dwarf">T-type</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/WISEPA_J174124.26%2B255319.5" title="WISEPA J174124.26+255319.5">WISE 1741+2553</a> (15.22<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.20 ly)</li> <li><a href="/wiki/WISE_1506%2B7027" title="WISE 1506+7027">WISE 1506+7027</a> (16.856<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.052 ly)</li> <li><a href="/wiki/DENIS_J081730.0%E2%88%92615520" title="DENIS J081730.0−615520">DENIS 0817-6155</a> (17.002<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.037 ly)</li> <li><a href="/wiki/2MASS_J09393548%E2%88%922448279" title="2MASS J09393548−2448279">2MASS 0939-2448</a> (17.41<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.44 ly)</li> <li>T-type brown dwarf B</li> <li><a href="/wiki/2MASS_J11145133%E2%88%922618235" title="2MASS J11145133−2618235">2MASS 1114-2618</a> (18.20<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.14 ly)</li> <li><a href="/wiki/2MASS_J04151954%E2%88%920935066" title="2MASS J04151954−0935066">2MASS 0415-0935</a> (18.62<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.18 ly)</li> <li><a href="/wiki/SIMP_J013656.5%2B093347" title="SIMP J013656.5+093347">SIMP0136</a> (19.955<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.057 ly)</li> <li><a href="/wiki/2MASS_J09373487%2B2931409" title="2MASS J09373487+2931409">2MASS 0937+2931</a> (19.96<span style="margin-left:0.3em;"><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">+0.22</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">−0.21</sub></span></span></span> ly)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:4.85em"><a href="/wiki/Brown_dwarf#Spectral_class_Y" title="Brown dwarf">Y-type</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/WISE_1639%E2%88%926847" title="WISE 1639−6847">WISE 1639−6847</a> (15.450<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.041 ly)</li> <li><a href="/wiki/WISE_0350%E2%88%925658" title="WISE 0350−5658">WISE 0350−5658</a> (18.49<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.24 ly)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" 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="Sub-brown_dwarfsand_rogue_planets" scope="row" class="navbox-group" style="width:10em;line-height:0.7em;"><a href="/wiki/Sub-brown_dwarf" title="Sub-brown dwarf">Sub-brown dwarfs</a><br />and <a href="/wiki/Rogue_planet" title="Rogue planet">rogue planets</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 id="Y-type" scope="row" class="navbox-group" style="width:4.85em">Y-type</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/WISE_1541%E2%88%922250" title="WISE 1541−2250">WISE 1541−2250</a> (19.54<span style="margin-left:0.3em;margin-right:0.15em">±</span>0.24 ly)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Constellation_of_Cetus" 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:Cetus" title="Template:Cetus"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Cetus" title="Template talk:Cetus"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Cetus" title="Special:EditPage/Template:Cetus"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Constellation_of_Cetus" style="font-size:114%;margin:0 4em"><a href="/wiki/Cetus_(constellation)" class="mw-redirect" title="Cetus (constellation)">Constellation of Cetus</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: center;"><div> <ul><li><a href="/wiki/List_of_stars_in_Cetus" title="List of stars in Cetus">List of stars in Cetus</a></li> <li><a href="/wiki/Cetus_in_Chinese_astronomy" title="Cetus in Chinese astronomy">Cetus in Chinese astronomy</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/Alpha_Ceti" title="Alpha Ceti">α (Menkar)</a></li> <li><a href="/wiki/Beta_Ceti" title="Beta Ceti">β (Diphda)</a></li> <li><a href="/wiki/Gamma_Ceti" title="Gamma Ceti">γ (Kaffaljidhma)</a></li> <li><a href="/wiki/Delta_Ceti" title="Delta Ceti">δ</a></li> <li><a href="/wiki/Epsilon_Ceti" title="Epsilon Ceti">ε</a></li> <li><a href="/wiki/Zeta_Ceti" title="Zeta Ceti">ζ (Baten Kaitos)</a></li> <li><a href="/wiki/Eta_Ceti" title="Eta Ceti">η</a></li> <li><a href="/wiki/Theta_Ceti" title="Theta Ceti">θ</a></li> <li><a href="/wiki/Iota_Ceti" title="Iota Ceti">ι</a></li> <li><a href="/wiki/Kappa1_Ceti" title="Kappa1 Ceti">κ<sup>1</sup></a></li> <li><a href="/wiki/Kappa2_Ceti" title="Kappa2 Ceti">κ<sup>2</sup></a></li> <li><a href="/wiki/Lambda_Ceti" title="Lambda Ceti">λ</a></li> <li><a href="/wiki/Mu_Ceti" title="Mu Ceti">μ</a></li> <li><a href="/wiki/Nu_Ceti" title="Nu Ceti">ν</a></li> <li><a href="/wiki/Xi1_Ceti" title="Xi1 Ceti">ξ<sup>1</sup></a></li> <li><a href="/wiki/Xi2_Ceti" title="Xi2 Ceti">ξ<sup>2</sup></a></li> <li><a href="/wiki/Mira" title="Mira">ο (Mira)</a> <ul><li><a href="/wiki/Mira_A" class="mw-redirect" title="Mira A">A</a></li> <li><a href="/wiki/Mira_B" title="Mira B">B</a></li></ul></li> <li><a href="/wiki/Pi_Ceti" title="Pi Ceti">π</a></li> <li><a href="/wiki/Rho_Ceti" title="Rho Ceti">ρ</a></li> <li><a href="/wiki/Sigma_Ceti" title="Sigma Ceti">σ</a></li> <li><a href="/wiki/Tau_Ceti" title="Tau Ceti">τ</a></li> <li><a href="/wiki/Upsilon_Ceti" title="Upsilon Ceti">υ</a></li> <li><a href="/wiki/Phi1_Ceti" title="Phi1 Ceti">φ<sup>1</sup></a></li> <li><a href="/wiki/Phi2_Ceti" title="Phi2 Ceti">φ<sup>2</sup></a></li> <li><a href="/wiki/Phi3_Ceti" title="Phi3 Ceti">φ<sup>3</sup></a></li> <li><a href="/wiki/Phi4_Ceti" title="Phi4 Ceti">φ<sup>4</sup></a></li> <li><a href="/wiki/Chi_Ceti" title="Chi Ceti">χ</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/1_Ceti" title="1 Ceti">1</a></li> <li><a href="/wiki/2_Ceti" title="2 Ceti">2</a></li> <li><a href="/wiki/3_Ceti" title="3 Ceti">3</a></li> <li><a href="/wiki/6_Ceti" title="6 Ceti">6</a></li> <li><a href="/wiki/7_Ceti" title="7 Ceti">7</a></li> <li><a href="/wiki/9_Ceti" title="9 Ceti">9</a></li> <li><a href="/wiki/13_Ceti" title="13 Ceti">13</a></li> <li><a href="/wiki/14_Ceti" title="14 Ceti">14</a></li> <li><a href="/wiki/20_Ceti" title="20 Ceti">20</a></li> <li><a href="/wiki/46_Ceti" title="46 Ceti">46</a></li> <li><a href="/wiki/49_Ceti" title="49 Ceti">49</a></li> <li><a href="/wiki/56_Ceti" title="56 Ceti">56 (υ<sup>1</sup>)</a></li> <li><a href="/wiki/63_Ceti" title="63 Ceti">63</a></li> <li><a href="/wiki/64_Ceti" title="64 Ceti">64</a></li> <li><a href="/wiki/69_Ceti" title="69 Ceti">69</a></li> <li><a href="/wiki/75_Ceti" title="75 Ceti">75</a></li> <li><a href="/wiki/77_Ceti" title="77 Ceti">77</a></li> <li><a href="/wiki/79_Ceti" title="79 Ceti">79</a></li> <li><a href="/wiki/81_Ceti" title="81 Ceti">81</a></li> <li><a href="/wiki/84_Ceti" title="84 Ceti">84</a></li> <li><a href="/wiki/94_Ceti" title="94 Ceti">94</a></li> <li><i><a href="/wiki/25_Arietis" title="25 Arietis">25 Ari</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/T_Ceti" title="T Ceti">T</a></li> <li><a href="/wiki/Gliese_65" title="Gliese 65">UV</a></li> <li><a class="mw-selflink selflink">YZ</a></li> <li><a href="/wiki/Ross_548" title="Ross 548">ZZ</a></li> <li><a href="/wiki/AY_Ceti" title="AY Ceti">AY</a></li> <li><a href="/wiki/Gliese_65" title="Gliese 65">BL</a></li> <li><a href="/wiki/HD_9289" title="HD 9289">BW</a></li> <li><a href="/wiki/HD_12039" title="HD 12039">DK</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_256" title="HD 256">10</a></li> <li><a href="/wiki/HD_1461" title="HD 1461">72</a></li> <li><a href="/wiki/HD_3443" title="HD 3443">159</a></li> <li><a href="/wiki/HD_4732" title="HD 4732">228</a></li> <li><a href="/wiki/HD_10550" title="HD 10550">500</a></li> <li><a href="/wiki/HD_14214" title="HD 14214">672</a></li> <li><a href="/wiki/HD_18262" title="HD 18262">870</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_984" title="HD 984">984</a></li> <li><a href="/wiki/HD_1690" title="HD 1690">1690</a></li> <li><a href="/wiki/HD_2638" title="HD 2638">2638</a></li> <li><a href="/wiki/HD_4747" title="HD 4747">4747</a></li> <li><a href="/wiki/HD_5319" title="HD 5319">5319</a></li> <li><a href="/wiki/HD_6718" title="HD 6718">6718</a></li> <li><a href="/wiki/HD_7449" title="HD 7449">7449</a></li> <li><a href="/wiki/HD_11506" title="HD 11506">11506</a></li> <li><a href="/wiki/HD_11964" title="HD 11964">11964</a></li> <li><a href="/wiki/HD_15115" title="HD 15115">15115</a></li> <li><a href="/wiki/HIP_11915" title="HIP 11915">16008</a></li> <li><a href="/wiki/HD_224693" title="HD 224693">224693 (Axólotl)</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/2MASS_J01225093%E2%88%922439505" title="2MASS J01225093−2439505">2MASS J01225093−2439505</a></li> <li><a href="/wiki/BD-07_436" title="BD-07 436">BD-07 436</a></li> <li><a href="/wiki/BD%E2%88%9217_63" title="BD−17 63">BD−17 63 (Felixvarela)</a></li> <li><a href="/wiki/Cayrel%27s_Star" title="Cayrel's Star">Cayrel's Star</a></li> <li><a href="/wiki/CFBDS_J005910.90%E2%80%93011401.3" title="CFBDS J005910.90–011401.3">CFBDS J005910.90–011401.3</a></li> <li><a href="/wiki/DENIS-P_J020529.0%E2%88%92115925" title="DENIS-P J020529.0−115925">DENIS-P J020529.0−115925</a></li> <li><a href="/wiki/GD_40" title="GD 40">GD 40</a></li> <li><a href="/wiki/Gliese_65" title="Gliese 65">Gliese 65</a></li> <li><a href="/wiki/Gliese_105" title="Gliese 105">Gliese 105</a></li> <li><a href="/wiki/GJ_1002" title="GJ 1002">GJ 1002</a></li> <li><a href="/wiki/GJ_1005" title="GJ 1005">GJ 1005</a></li> <li><a href="/wiki/HIP_5158" title="HIP 5158">HIP 5158</a></li> <li><a href="/wiki/HIP_11952" title="HIP 11952">HIP 11952</a></li> <li><a href="/wiki/LHS_1140" title="LHS 1140">LHS 1140</a></li> <li><a href="/wiki/NGC_156" title="NGC 156">NGC 156</a></li> <li><a href="/wiki/NGC_158" title="NGC 158">NGC 158</a></li> <li><a href="/wiki/NGC_302" title="NGC 302">NGC 302</a></li> <li><a href="/wiki/NGC_308" title="NGC 308">NGC 308</a></li> <li><a href="/wiki/NGC_310" title="NGC 310">NGC 310</a></li> <li><a href="/wiki/PSR_J0108%E2%88%921431" title="PSR J0108−1431">PSR J0108−1431</a></li> <li><a href="/wiki/SDSS_J001820.5%E2%88%92093939.2" title="SDSS J001820.5−093939.2">SDSS J001820.5−093939.2</a></li> <li><a href="/wiki/SDSS_J0106%E2%88%921000" title="SDSS J0106−1000">SDSS J0106−1000</a></li> <li><a href="/wiki/ULAS_J003402.77%E2%88%92005206.7" title="ULAS J003402.77−005206.7">ULAS J003402.77−005206.7</a></li> <li><a href="/wiki/WD_J2356%E2%88%92209" title="WD J2356−209">WD J2356−209</a></li> <li><a href="/wiki/WASP-20" title="WASP-20">WASP-20</a></li> <li><a href="/wiki/WASP-26" title="WASP-26">WASP-26</a></li> <li><a href="/wiki/WASP-44" title="WASP-44">WASP-44</a></li> <li><a href="/wiki/BD%2B00_316" title="BD+00 316">WASP-71 (Mpingo)</a></li> <li><a href="/wiki/WISE_J0254%2B0223" title="WISE J0254+0223">WISE J0254+0223</a></li> <li><a href="/wiki/WHL0137-LS" title="WHL0137-LS">WHL0137-LS</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="Exoplanets" 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/79_Ceti_b" title="79 Ceti b">79 Ceti b</a></li> <li><a href="/wiki/81_Ceti_b" title="81 Ceti b">81 Ceti b</a></li> <li><a href="/wiki/94_Ceti_b" title="94 Ceti b">94 Ceti b</a></li> <li><a href="/wiki/BD%E2%88%9217_63_b" title="BD−17 63 b">BD−17 63 b</a></li> <li><a href="/wiki/HD_1461_b" title="HD 1461 b">HD 1461 b</a></li> <li><a href="/wiki/HD_2638_b" title="HD 2638 b">HD 2638 b</a></li> <li><a href="/wiki/HD_5319_b" title="HD 5319 b">HD 5319 b</a></li> <li><a href="/wiki/HD_11506_b" title="HD 11506 b">HD 11506 b</a></li> <li><a href="/wiki/HD_11506_c" title="HD 11506 c">c</a></li> <li><a href="/wiki/HD_11964_b" title="HD 11964 b">HD 11964 b</a></li> <li><a href="/wiki/HD_11964_c" title="HD 11964 c">c</a></li> <li><a href="/wiki/HD_224693_b" title="HD 224693 b">HD 224693 b</a></li> <li><a href="/wiki/HIP_5158_b" title="HIP 5158 b">HIP 5158 b</a></li> <li><a href="/wiki/HIP_5158_c" title="HIP 5158 c">c</a></li> <li><a href="/wiki/HIP_11915_b" title="HIP 11915 b">HIP 11915 b</a></li> <li><a href="/wiki/Tau_Ceti_e" title="Tau Ceti e">τ Ceti e</a></li> <li><a href="/wiki/Tau_Ceti_f" title="Tau Ceti f">f</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="Nebulae" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Nebula" title="Nebula">Nebulae</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_246" title="NGC 246">NGC 246</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_77" title="Messier 77">77</a></li></ul> </div></td></tr><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_17" title="NGC 17">17</a></li> <li><a href="/wiki/NGC_35" title="NGC 35">35</a></li> <li><a href="/wiki/NGC_45" title="NGC 45">45</a></li> <li><a href="/wiki/NGC_47" title="NGC 47">47</a></li> <li><a href="/wiki/NGC_50" title="NGC 50">50</a></li> <li><a href="/wiki/NGC_54" title="NGC 54">54</a></li> <li><a href="/wiki/NGC_59" title="NGC 59">59</a></li> <li><a href="/wiki/NGC_61" title="NGC 61">61</a></li> <li><a href="/wiki/NGC_62" title="NGC 62">62</a></li> <li><a href="/wiki/NGC_64" title="NGC 64">64</a></li> <li><a href="/wiki/NGC_65" title="NGC 65">65</a></li> <li><a href="/wiki/NGC_66" title="NGC 66">66</a></li> <li><a href="/wiki/NGC_73" title="NGC 73">73</a></li> <li><a href="/wiki/NGC_77" title="NGC 77">77</a></li> <li><a href="/wiki/NGC_102" title="NGC 102">102</a></li> <li><a href="/wiki/NGC_107" title="NGC 107">107</a></li> <li><a href="/wiki/NGC_113" title="NGC 113">113</a></li> <li><a href="/wiki/NGC_114" title="NGC 114">114</a></li> <li><a href="/wiki/NGC_116" title="NGC 116">116</a></li> <li><a href="/wiki/NGC_117" title="NGC 117">117</a></li> <li><a href="/wiki/NGC_118" title="NGC 118">118</a></li> <li><a href="/wiki/NGC_120" title="NGC 120">120</a></li> <li><a href="/wiki/NGC_124" title="NGC 124">124</a></li> <li><a href="/wiki/NGC_132" title="NGC 132">132</a></li> <li><a href="/wiki/NGC_135" class="mw-redirect" title="NGC 135">135</a></li> <li><a href="/wiki/NGC_142" class="mw-redirect" title="NGC 142">142</a></li> <li><a href="/wiki/NGC_143" title="NGC 143">143</a></li> <li><a href="/wiki/NGC_144" title="NGC 144">144</a></li> <li><a href="/wiki/NGC_145" title="NGC 145">145</a></li> <li><a href="/wiki/NGC_151" title="NGC 151">151</a></li> <li><a href="/wiki/NGC_154" title="NGC 154">154</a></li> <li><a href="/wiki/NGC_155" title="NGC 155">155</a></li> <li><a href="/wiki/NGC_157" title="NGC 157">157</a></li> <li><a href="/wiki/NGC_161" title="NGC 161">161</a></li> <li><a href="/wiki/NGC_163" title="NGC 163">163</a></li> <li><a href="/wiki/NGC_165" title="NGC 165">165</a></li> <li><a href="/wiki/NGC_166" title="NGC 166">166</a></li> <li><a href="/wiki/NGC_167" title="NGC 167">167</a></li> <li><a href="/wiki/NGC_168" title="NGC 168">168</a></li> <li><a href="/wiki/NGC_170" title="NGC 170">170</a></li> <li><a href="/wiki/NGC_171" title="NGC 171">171</a></li> <li><a href="/wiki/NGC_172" title="NGC 172">172</a></li> <li><a href="/wiki/NGC_173" title="NGC 173">173</a></li> <li><a href="/wiki/NGC_177" title="NGC 177">177</a></li> <li><a href="/wiki/NGC_178" title="NGC 178">178</a></li> <li><a href="/wiki/NGC_179" title="NGC 179">179</a></li> <li><a href="/wiki/NGC_187" title="NGC 187">187</a></li> <li><a href="/wiki/NGC_191" title="NGC 191">191</a></li> <li><a href="/wiki/NGC_192" title="NGC 192">192</a></li> <li><a href="/wiki/NGC_195" title="NGC 195">195</a></li> <li><a href="/wiki/NGC_196" title="NGC 196">196</a></li> <li><a href="/wiki/NGC_197" title="NGC 197">197</a></li> <li><a href="/wiki/NGC_201" title="NGC 201">201</a></li> <li><a href="/wiki/NGC_207" title="NGC 207">207</a></li> <li><a href="/wiki/NGC_209" title="NGC 209">209</a></li> <li><a href="/wiki/NGC_210" title="NGC 210">210</a></li> <li><a href="/wiki/NGC_216" title="NGC 216">216</a></li> <li><a href="/wiki/NGC_217" title="NGC 217">217</a></li> <li><a href="/wiki/NGC_219" title="NGC 219">219</a></li> <li><a href="/wiki/NGC_223" title="NGC 223">223</a></li> <li><a href="/wiki/NGC_227" title="NGC 227">227</a></li> <li><a href="/wiki/NGC_230" title="NGC 230">230</a></li> <li><a href="/wiki/NGC_232" title="NGC 232">232</a></li> <li><a href="/wiki/NGC_235" title="NGC 235">235</a></li> <li><a href="/wiki/NGC_237" title="NGC 237">237</a></li> <li><a href="/wiki/NGC_239" title="NGC 239">239</a></li> <li><a href="/wiki/NGC_244" title="NGC 244">244</a></li> <li><a href="/wiki/NGC_245" title="NGC 245">245</a></li> <li><a href="/wiki/NGC_247" title="NGC 247">247</a></li> <li><a href="/wiki/NGC_255" title="NGC 255">255</a></li> <li><a href="/wiki/NGC_259" title="NGC 259">259</a></li> <li><a href="/wiki/NGC_263" title="NGC 263">263</a></li> <li><a href="/wiki/NGC_268" title="NGC 268">268</a></li> <li><a href="/wiki/NGC_270" title="NGC 270">270</a></li> <li><a href="/wiki/NGC_271" title="NGC 271">271</a></li> <li><a href="/wiki/NGC_273" title="NGC 273">273</a></li> <li><a href="/wiki/NGC_274" title="NGC 274">274</a></li> <li><a href="/wiki/NGC_275" title="NGC 275">275</a></li> <li><a href="/wiki/NGC_276" title="NGC 276">276</a></li> <li><a href="/wiki/NGC_277" title="NGC 277">277</a></li> <li><a href="/wiki/NGC_279" title="NGC 279">279</a></li> <li><a href="/wiki/NGC_283" title="NGC 283">283</a></li> <li><a href="/wiki/NGC_284" title="NGC 284">284</a></li> <li><a href="/wiki/NGC_285" title="NGC 285">285</a></li> <li><a href="/wiki/NGC_286" title="NGC 286">286</a></li> <li><a href="/wiki/NGC_291" title="NGC 291">291</a></li> <li><a href="/wiki/NGC_293" title="NGC 293">293</a></li> <li><a href="/wiki/NGC_297" title="NGC 297">297</a></li> <li><a href="/wiki/NGC_298" title="NGC 298">298</a></li> <li><a href="/wiki/NGC_301" title="NGC 301">301</a></li> <li><a href="/wiki/NGC_303" title="NGC 303">303</a></li> <li><a href="/wiki/NGC_307" title="NGC 307">307</a></li> <li><a href="/wiki/NGC_309" title="NGC 309">309</a></li> <li><a href="/wiki/NGC_320" title="NGC 320">320</a></li> <li><a href="/wiki/NGC_321" title="NGC 321">321</a></li> <li><a href="/wiki/NGC_325" title="NGC 325">325</a></li> <li><a href="/wiki/NGC_327" title="NGC 327">327</a></li> <li><a href="/wiki/NGC_329" title="NGC 329">329</a></li> <li><a href="/wiki/NGC_331" title="NGC 331">331</a></li> <li><a href="/wiki/NGC_333" title="NGC 333">333</a></li> <li><a href="/wiki/NGC_335" title="NGC 335">335</a></li> <li><a href="/wiki/NGC_336" title="NGC 336">336</a></li> <li><a href="/wiki/NGC_337" title="NGC 337">337</a></li> <li><a href="/wiki/NGC_340" title="NGC 340">340</a></li> <li><a href="/wiki/NGC_341" title="NGC 341">341</a></li> <li><a href="/wiki/NGC_342" title="NGC 342">342</a></li> <li><a href="/wiki/NGC_343" title="NGC 343">343</a></li> <li><a href="/wiki/NGC_344" title="NGC 344">344</a></li> <li><a href="/wiki/NGC_345" title="NGC 345">345</a></li> <li><a href="/wiki/NGC_347" title="NGC 347">347</a></li> <li><a href="/wiki/NGC_349" title="NGC 349">349</a></li> <li><a href="/wiki/NGC_350" title="NGC 350">350</a></li> <li><a href="/wiki/NGC_351" title="NGC 351">351</a></li> <li><a href="/wiki/NGC_352" title="NGC 352">352</a></li> <li><a href="/wiki/NGC_353" title="NGC 353">353</a></li> <li><a href="/wiki/NGC_355" title="NGC 355">355</a></li> <li><a href="/wiki/NGC_356" title="NGC 356">356</a></li> <li><a href="/wiki/NGC_357" title="NGC 357">357</a></li> <li><a href="/wiki/NGC_359" title="NGC 359">359</a></li> <li><a href="/wiki/NGC_363" title="NGC 363">363</a></li> <li><a href="/wiki/NGC_364" title="NGC 364">364</a></li> <li><a href="/wiki/NGC_367" title="NGC 367">367</a></li> <li><a href="/wiki/NGC_369" title="NGC 369">369</a></li> <li><a href="/wiki/NGC_377" title="NGC 377">377</a></li> <li><a href="/wiki/NGC_391" title="NGC 391">391</a></li> <li><a href="/wiki/NGC_413" title="NGC 413">413</a></li> <li><a href="/wiki/NGC_417" title="NGC 417">417</a></li> <li><a href="/wiki/NGC_426" title="NGC 426">426</a></li> <li><a href="/wiki/NGC_428" title="NGC 428">428</a></li> <li><a href="/wiki/NGC_429" title="NGC 429">429</a></li> <li><a href="/wiki/NGC_430" title="NGC 430">430</a></li> <li><a href="/wiki/NGC_435" title="NGC 435">435</a></li> <li><a href="/wiki/NGC_442" title="NGC 442">442</a></li> <li><a href="/wiki/NGC_445" title="NGC 445">445</a></li> <li><a href="/wiki/NGC_448" title="NGC 448">448</a></li> <li><a href="/wiki/NGC_450" title="NGC 450">450</a></li> <li><a href="/wiki/NGC_478" title="NGC 478">478</a></li> <li><a href="/wiki/NGC_480" title="NGC 480">480</a></li> <li><a href="/wiki/NGC_481" title="NGC 481">481</a></li> <li><a href="/wiki/NGC_487" title="NGC 487">487</a></li> <li><a href="/wiki/NGC_493" title="NGC 493">493</a></li> <li><a href="/wiki/NGC_497" title="NGC 497">497</a></li> <li><a href="/wiki/NGC_519" title="NGC 519">519</a></li> <li><a href="/wiki/NGC_521" title="NGC 521">521</a></li> <li><a href="/wiki/NGC_533" title="NGC 533">533</a></li> <li><a href="/wiki/NGC_540" title="NGC 540">540</a></li> <li><a href="/wiki/NGC_541" title="NGC 541">541</a></li> <li><a href="/wiki/NGC_545" title="NGC 545">545</a></li> <li><a href="/wiki/NGC_547" title="NGC 547">547</a></li> <li><a href="/w/index.php?title=NGC_554&action=edit&redlink=1" class="new" title="NGC 554 (page does not exist)">554</a></li> <li><a href="/wiki/NGC_555" title="NGC 555">555</a></li> <li><a href="/wiki/NGC_560" title="NGC 560">560</a></li> <li><a href="/wiki/NGC_570" title="NGC 570">570</a></li> <li><a href="/wiki/NGC_584" title="NGC 584">584</a></li> <li><a href="/wiki/NGC_585" title="NGC 585">585</a></li> <li><a href="/wiki/NGC_596" title="NGC 596">596</a></li> <li><a href="/wiki/NGC_615" title="NGC 615">615</a></li> <li><a href="/wiki/NGC_622" title="NGC 622">622</a></li> <li><a href="/wiki/NGC_655" title="NGC 655">655</a></li> <li><a href="/wiki/NGC_681" title="NGC 681">681</a></li> <li><a href="/wiki/NGC_682" title="NGC 682">682</a></li> <li><a href="/wiki/NGC_690" title="NGC 690">690</a></li> <li><a href="/wiki/NGC_701" title="NGC 701">701</a></li> <li><a href="/wiki/NGC_720" title="NGC 720">720</a></li> <li><a href="/wiki/NGC_747" title="NGC 747">747</a></li> <li><a href="/wiki/NGC_755" title="NGC 755">755</a></li> <li><a href="/wiki/NGC_779" title="NGC 779">779</a></li> <li><a href="/wiki/NGC_800" title="NGC 800">800</a></li> <li><a href="/wiki/NGC_806" title="NGC 806">806</a></li> <li><a href="/wiki/NGC_833" title="NGC 833">833</a></li> <li><a href="/wiki/NGC_838" title="NGC 838">838</a></li> <li><a href="/wiki/NGC_864" title="NGC 864">864</a></li> <li><a href="/wiki/NGC_874" title="NGC 874">874</a></li> <li><a href="/wiki/NGC_880" title="NGC 880">880</a></li> <li><a href="/wiki/NGC_895" title="NGC 895">895</a></li> <li><a href="/wiki/NGC_908" title="NGC 908">908</a></li> <li><a href="/wiki/NGC_936" title="NGC 936">936</a></li> <li><a href="/wiki/NGC_945" title="NGC 945">945</a></li> <li><a href="/wiki/NGC_950" title="NGC 950">950</a></li> <li><a href="/wiki/NGC_960" title="NGC 960">960</a></li> <li><a href="/wiki/NGC_965" title="NGC 965">965</a></li> <li><a href="/wiki/NGC_966" title="NGC 966">966</a></li> <li><a href="/wiki/NGC_985" title="NGC 985">985</a></li> <li><a href="/wiki/NGC_988" title="NGC 988">988</a></li> <li><a href="/wiki/NGC_1009" title="NGC 1009">1009</a></li> <li><a href="/wiki/NGC_1015" title="NGC 1015">1015</a></li> <li><a href="/wiki/NGC_1019" title="NGC 1019">1019</a></li> <li><a href="/wiki/NGC_1022" title="NGC 1022">1022</a></li> <li><a href="/wiki/NGC_1032" title="NGC 1032">1032</a></li> <li><a href="/wiki/NGC_1042" title="NGC 1042">1042</a></li> <li><a href="/wiki/NGC_1052" title="NGC 1052">1052</a></li> <li><a href="/wiki/NGC_1055" title="NGC 1055">1055</a></li> <li><a href="/wiki/NGC_1073" title="NGC 1073">1073</a></li> <li><a href="/wiki/NGC_1087" title="NGC 1087">1087</a></li> <li><a href="/wiki/NGC_1090" title="NGC 1090">1090</a></li> <li><a href="/wiki/NGC_1128" title="NGC 1128">1128</a></li> <li><a href="/wiki/NGC_1142" title="NGC 1142">1142</a></li> <li><a href="/wiki/NGC_1218" title="NGC 1218">1218</a></li> <li><a href="/wiki/NGC_7808" title="NGC 7808">7808</a></li> <li><a href="/wiki/NGC_7828" title="NGC 7828">7828</a></li> <li><a href="/wiki/NGC_7829" title="NGC 7829">7829</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/Arp_146" title="Arp 146">Arp 146</a></li> <li><a href="/wiki/Arp_147" title="Arp 147">Arp 147</a></li> <li><a href="/wiki/Arp_256" title="Arp 256">Arp 256</a></li> <li><a href="/wiki/3C_75" title="3C 75">3C 75</a></li> <li><a href="/wiki/Cetus_Dwarf" title="Cetus Dwarf">Cetus Dwarf</a></li> <li><a href="/wiki/HCM-6A" title="HCM-6A">HCM-6A</a></li> <li><a href="/wiki/HD1" title="HD1">HD2</a></li> <li><a href="/wiki/Holmberg_15A" title="Holmberg 15A">Holmberg 15A</a></li> <li><a href="/wiki/HXMM01" title="HXMM01">HXMM01</a></li> <li><a href="/wiki/IC_1613" title="IC 1613">IC 1613</a></li> <li><a href="/wiki/IC_1623" title="IC 1623">IC 1623</a></li> <li><a href="/wiki/IRAS_01003-2238" title="IRAS 01003-2238">IRAS 01003-2238</a></li> <li><a href="/wiki/Markarian_1014" title="Markarian 1014">Markarian 1014</a></li> <li><a href="/wiki/Markarian_1018" title="Markarian 1018">Markarian 1018</a></li> <li><a href="/wiki/MCG_-03-04-014" title="MCG -03-04-014">MCG -03-04-014</a></li> <li><a href="/wiki/PGC_2456" title="PGC 2456">PGC 2456</a></li> <li><a href="/wiki/SDSS_J0303-0019" title="SDSS J0303-0019">SDSS J0303-0019</a></li> <li><a href="/wiki/SXDF-NB1006-2" title="SXDF-NB1006-2">SXDF-NB1006-2</a></li> <li><a href="/wiki/9Spitch" class="mw-redirect" title="9Spitch">9Spitch</a></li> <li><a href="/wiki/TON_S180" title="TON S180">TON S180</a></li> <li><a href="/wiki/UGC_711" title="UGC 711">UGC 711</a></li> <li><a href="/wiki/UGC_1775" title="UGC 1775">UGC 1775</a></li> <li><a href="/wiki/Wolf%E2%80%93Lundmark%E2%80%93Melotte" title="Wolf–Lundmark–Melotte">Wolf–Lundmark–Melotte</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_clusters" 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-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Abell_133" title="Abell 133">Abell 133</a></li> <li><a href="/wiki/Abell_222" title="Abell 222">Abell 222</a></li> <li><a href="/wiki/Abell_223" title="Abell 223">Abell 223</a></li> <li><a href="/wiki/Abell_370" title="Abell 370">Abell 370</a></li> <li><a href="/wiki/Abell_400" title="Abell 400">Abell 400</a></li> <li><a href="/wiki/Arp_251" title="Arp 251">Arp 251</a></li> <li><a href="/wiki/Gioiello_(galaxy_cluster)" title="Gioiello (galaxy cluster)">Gioiello</a></li> <li><a href="/wiki/IRC_0218" title="IRC 0218">IRC 0218</a></li> <li><a href="/wiki/JKCS_041" title="JKCS 041">JKCS 041</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_events" 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-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SN_2005E" title="SN 2005E">SN 2005E</a></li> <li><a href="/wiki/SN_2005gj" title="SN 2005gj">SN 2005gj</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 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:Cetus" title="Category:Cetus">Category</a></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=YZ_Ceti&oldid=1235404625">https://en.wikipedia.org/w/index.php?title=YZ_Ceti&oldid=1235404625</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:Cetus" title="Category:Cetus">Cetus</a></li><li><a href="/wiki/Category:Local_Bubble" title="Category:Local Bubble">Local Bubble</a></li><li><a href="/wiki/Category:M-type_main-sequence_stars" title="Category:M-type main-sequence stars">M-type main-sequence stars</a></li><li><a href="/wiki/Category:Flare_stars" title="Category:Flare stars">Flare stars</a></li><li><a href="/wiki/Category:Hipparcos_objects" title="Category:Hipparcos objects">Hipparcos objects</a></li><li><a href="/wiki/Category:Gliese_and_GJ_objects" title="Category:Gliese and GJ objects">Gliese and GJ objects</a></li><li><a href="/wiki/Category:Objects_with_variable_star_designations" title="Category:Objects with variable star designations">Objects with variable star designations</a></li><li><a href="/wiki/Category:Planetary_systems_with_three_confirmed_planets" title="Category:Planetary systems with three confirmed planets">Planetary systems with three confirmed planets</a></li><li><a href="/wiki/Category:2MASS_objects" title="Category:2MASS objects">2MASS objects</a></li><li><a href="/wiki/Category:Emission-line_stars" title="Category:Emission-line stars">Emission-line stars</a></li><li><a href="/wiki/Category:BY_Draconis_variables" title="Category:BY Draconis variables">BY Draconis variables</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_matches_Wikidata" title="Category:Short description matches Wikidata">Short description matches Wikidata</a></li></ul></div></div> </div> </main> </div> <div 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