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class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Stellar system subsection</span> </button> <ul id="toc-Stellar_system-sublist" class="vector-toc-list"> <li id="toc-Component_A" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Component_A"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Component A</span> </div> </a> <ul id="toc-Component_A-sublist" class="vector-toc-list"> <li id="toc-Variability" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Variability"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1.1</span> <span>Variability</span> </div> </a> <ul id="toc-Variability-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Mass_loss" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Mass_loss"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1.2</span> <span>Mass loss</span> </div> </a> <ul id="toc-Mass_loss-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Component_B" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Component_B"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Component B</span> </div> </a> <ul id="toc-Component_B-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Further_reading" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Further_reading"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Further reading</span> </div> </a> <ul id="toc-Further_reading-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Table of Contents" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Mira</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 55 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-55" 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">55 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Mira" title="Mira – Afrikaans" lang="af" hreflang="af" data-title="Mira" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Mira_(Stern)" title="Mira (Stern) – Alemannic" lang="gsw" hreflang="gsw" data-title="Mira (Stern)" data-language-autonym="Alemannisch" data-language-local-name="Alemannic" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A3%D8%B9%D8%AC%D9%88%D8%A8%D8%A9_%D9%82%D9%8A%D8%B7%D8%B3" title="أعجوبة قيطس – Arabic" lang="ar" hreflang="ar" data-title="أعجوبة 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/Mira_(estrella)" title="Mira (estrella) – Asturian" lang="ast" hreflang="ast" data-title="Mira (estrella)" data-language-autonym="Asturianu" data-language-local-name="Asturian" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9C%D1%96%D1%80%D0%B0_(%D0%B7%D0%BE%D1%80%D0%BA%D0%B0)" title="Міра (зорка) – Belarusian" lang="be" hreflang="be" data-title="Міра (зорка)" data-language-autonym="Беларуская" data-language-local-name="Belarusian" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9C%D0%B8%D1%80%D0%B0_(%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%B0)" title="Мира (звезда) – Bulgarian" lang="bg" hreflang="bg" data-title="Мира (звезда)" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Omicron_Ceti" title="Omicron Ceti – Bosnian" lang="bs" hreflang="bs" data-title="Omicron Ceti" data-language-autonym="Bosanski" data-language-local-name="Bosnian" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Mira_(estrella)" title="Mira (estrella) – Catalan" lang="ca" hreflang="ca" data-title="Mira (estrella)" 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/Mira" title="Mira – Czech" lang="cs" hreflang="cs" data-title="Mira" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Mira" title="Mira – Danish" lang="da" hreflang="da" data-title="Mira" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Mira_(Stern)" title="Mira (Stern) – German" lang="de" hreflang="de" data-title="Mira (Stern)" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Mira" title="Mira – Estonian" lang="et" hreflang="et" data-title="Mira" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9C%CE%AF%CF%81%CE%B1" title="Μίρα – Greek" lang="el" hreflang="el" data-title="Μίρα" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Mira_(estrella)" title="Mira (estrella) – Spanish" lang="es" hreflang="es" data-title="Mira (estrella)" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Omikron_Baleno" title="Omikron Baleno – Esperanto" lang="eo" hreflang="eo" data-title="Omikron Baleno" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Mira_(izarra)" title="Mira (izarra) – Basque" lang="eu" hreflang="eu" data-title="Mira (izarra)" data-language-autonym="Euskara" data-language-local-name="Basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B4%DA%AF%D9%81%D8%AA%E2%80%8C%D8%A7%D8%AE%D8%AA%D8%B1" title="شگفت‌اختر – Persian" lang="fa" hreflang="fa" data-title="شگفت‌اختر" 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/Mira_(%C3%A9toile)" title="Mira (étoile) – French" lang="fr" hreflang="fr" data-title="Mira (étoile)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Mira" title="Mira – Irish" lang="ga" hreflang="ga" data-title="Mira" data-language-autonym="Gaeilge" data-language-local-name="Irish" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%AF%B8%EB%9D%BC_(%ED%95%AD%EC%84%B1)" title="미라 (항성) – Korean" lang="ko" hreflang="ko" data-title="미라 (항성)" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%84%D5%AB%D6%80%D5%A1_(%D5%A1%D5%BD%D5%BF%D5%B2)" title="Միրա (աստղ) – Armenian" lang="hy" hreflang="hy" data-title="Միրա (աստղ)" data-language-autonym="Հայերեն" data-language-local-name="Armenian" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Mira_Ceti" title="Mira Ceti – Croatian" lang="hr" hreflang="hr" data-title="Mira Ceti" data-language-autonym="Hrvatski" data-language-local-name="Croatian" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Mira" title="Mira – Indonesian" lang="id" hreflang="id" data-title="Mira" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Mira_(astronomia)" title="Mira (astronomia) – Italian" lang="it" hreflang="it" data-title="Mira (astronomia)" 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/%D7%9E%D7%99%D7%A8%D7%94_(%D7%9B%D7%95%D7%9B%D7%91)" title="מירה (כוכב) – Hebrew" lang="he" hreflang="he" data-title="מירה (כוכב)" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9B%E1%83%98%E1%83%A0%E1%83%90_(%E1%83%95%E1%83%90%E1%83%A0%E1%83%A1%E1%83%99%E1%83%95%E1%83%9A%E1%83%90%E1%83%95%E1%83%98)" title="მირა (ვარსკვლავი) – Georgian" lang="ka" hreflang="ka" data-title="მირა (ვარსკვლავი)" data-language-autonym="ქართული" data-language-local-name="Georgian" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9C%D0%B8%D1%80%D0%B0_(%D0%B6%D2%B1%D0%BB%D0%B4%D1%8B%D0%B7)" title="Мира (жұлдыз) – Kazakh" lang="kk" hreflang="kk" data-title="Мира (жұлдыз)" data-language-autonym="Қазақша" data-language-local-name="Kazakh" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Mira_(St%C3%A4r)" title="Mira (Stär) – Luxembourgish" lang="lb" hreflang="lb" data-title="Mira (Stär)" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxembourgish" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Mira_(csillag)" title="Mira (csillag) – Hungarian" lang="hu" hreflang="hu" data-title="Mira (csillag)" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9C%D0%B8%D1%80%D0%B0_(%D1%95%D0%B2%D0%B5%D0%B7%D0%B4%D0%B0)" title="Мира (ѕвезда) – Macedonian" lang="mk" hreflang="mk" data-title="Мира (ѕвезда)" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AE%E0%B5%88%E0%B4%B1%E0%B5%86" title="മൈറെ – Malayalam" lang="ml" hreflang="ml" data-title="മൈറെ" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Mira_(ster)" title="Mira (ster) – Dutch" lang="nl" hreflang="nl" data-title="Mira (ster)" 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%83%9F%E3%83%A9_(%E6%81%92%E6%98%9F)" title="ミラ (恒星) – Japanese" lang="ja" hreflang="ja" data-title="ミラ (恒星)" 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/Mira" title="Mira – Norwegian Bokmål" lang="nb" hreflang="nb" data-title="Mira" 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-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Mira" title="Mira – Norwegian Nynorsk" lang="nn" hreflang="nn" data-title="Mira" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwegian Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Mira_(yulduz)" title="Mira (yulduz) – Uzbek" lang="uz" hreflang="uz" data-title="Mira (yulduz)" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Mira_(Steern)" title="Mira (Steern) – Low German" lang="nds" hreflang="nds" data-title="Mira (Steern)" data-language-autonym="Plattdüütsch" data-language-local-name="Low German" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Mira_Ceti" title="Mira Ceti – Polish" lang="pl" hreflang="pl" data-title="Mira 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/Mira_(estrela)" title="Mira (estrela) – Portuguese" lang="pt" hreflang="pt" data-title="Mira (estrela)" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Mira_(stea)" title="Mira (stea) – Romanian" lang="ro" hreflang="ro" data-title="Mira (stea)" data-language-autonym="Română" data-language-local-name="Romanian" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9C%D0%B8%D1%80%D0%B0_(%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%B0)" title="Мира (звезда) – Russian" lang="ru" hreflang="ru" data-title="Мира (звезда)" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Mira" title="Mira – Simple English" lang="en-simple" hreflang="en-simple" data-title="Mira" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Mira_(hviezda)" title="Mira (hviezda) – Slovak" lang="sk" hreflang="sk" data-title="Mira (hviezda)" data-language-autonym="Slovenčina" data-language-local-name="Slovak" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Mira_(zvezda)" title="Mira (zvezda) – Slovenian" lang="sl" hreflang="sl" data-title="Mira (zvezda)" data-language-autonym="Slovenščina" data-language-local-name="Slovenian" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%A6%DB%95%D8%B3%D8%AA%DB%8E%D8%B1%DB%95%DB%8C_%D9%85%DB%8C%D8%B1%D8%A7" title="ئەستێرەی میرا – Central Kurdish" lang="ckb" hreflang="ckb" data-title="ئەستێرەی میرا" data-language-autonym="کوردی" data-language-local-name="Central Kurdish" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9C%D0%B8%D1%80%D0%B0_(%D0%B7%D0%B2%D0%B5%D0%B7%D0%B4%D0%B0)" title="Мира (звезда) – Serbian" lang="sr" hreflang="sr" data-title="Мира (звезда)" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Mira" title="Mira – Finnish" lang="fi" hreflang="fi" data-title="Mira" 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/Mira" title="Mira – Swedish" lang="sv" hreflang="sv" data-title="Mira" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%94%E0%B8%B2%E0%B8%A7%E0%B9%84%E0%B8%A1%E0%B8%A3%E0%B8%B2" title="ดาวไมรา – Thai" lang="th" hreflang="th" data-title="ดาวไมรา" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Mira_Ceti" title="Mira Ceti – Turkish" lang="tr" hreflang="tr" data-title="Mira 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/%D0%9C%D1%96%D1%80%D0%B0_(%D0%B7%D0%BE%D1%80%D1%8F)" title="Міра (зоря) – Ukrainian" lang="uk" hreflang="uk" data-title="Міра (зоря)" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link 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.sky-coordinates-display{line-height:1.5em;text-align:right;text-indent:0;text-transform:none;white-space:nowrap}body.skin-vector-legacy .mw-parser-output .sky-coordinates-display{font-size:85%}</style><span class="sky-coordinates-display plainlinks nourlexpansion"><a href="/wiki/Celestial_coordinate_system" class="mw-redirect" title="Celestial coordinate system">Coordinates</a>: <span typeof="mw:File"><span title="Sky map"><img alt="Sky map" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/20px-Jupiter_and_moon.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/40px-Jupiter_and_moon.png 1.5x" data-file-width="128" data-file-height="128" /></span></span> <a rel="nofollow" class="external text" href="http://www.wikisky.org/?ra=2.3224422222222&de=-2.9776388888889&zoom=6&show_grid=1&show_constellation_lines=1&show_constellation_boundaries=1&show_const_names=1&show_galaxies=1&img_source=IMG_all">02<sup>h</sup> 19<sup>m</sup> 20.792<sup>s</sup>, −02° 58′ 39.50″</a></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Binary star in Cetus</div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For other uses, see <a href="/wiki/Mira_(disambiguation)" class="mw-disambig" title="Mira (disambiguation)">Mira (disambiguation)</a>.</div> <table class="infobox" style="width: 22em; font-size: 88%; line-height: 1.5em"> <caption style="font-size: 125%; font-weight: bold">Mira<sup id="cite_ref-IAU-CSN_1-0" class="reference"><a href="#cite_note-IAU-CSN-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </caption><tbody><tr><td colspan="2" style="text-align:center;"><div style="text-align: center; margin-left:auto; margin-right:auto"><div class="center"> <div class="floatnone"> <div style="width:280px;"> <div style="position:relative; background-color:#FFFFFF; ;"><span typeof="mw:File"><a href="/wiki/File:Cetus_constellation_map.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/04/Cetus_constellation_map.svg/280px-Cetus_constellation_map.svg.png" decoding="async" width="280" height="224" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/04/Cetus_constellation_map.svg/420px-Cetus_constellation_map.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/04/Cetus_constellation_map.svg/560px-Cetus_constellation_map.svg.png 2x" data-file-width="320" data-file-height="256" /></a></span><div style="position: absolute; z-index: 2; height: 0; width: 0; margin: 0; padding: 0; top: 92px; left: 91px;"> <div style="position: relative; z-index: 3; line-height: 0; text-align: center; width: 12px; left: -6px; top: -6px;"><span typeof="mw:File"><a href="/wiki/Mira" title="Mira"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Red_circle.svg/12px-Red_circle.svg.png" decoding="async" width="12" height="12" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Red_circle.svg/18px-Red_circle.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/05/Red_circle.svg/24px-Red_circle.svg.png 2x" data-file-width="200" data-file-height="200" /></a></span></div><div style="position: relative; z-index: 4; font-size: 90%; line-height: 111%; width: 6em; top: -1.5em; left: 0.5em; text-align: left;"><span style="padding: 1px;"></span></div> </div></div> </div> </div> </div>Location of Mira (circled)</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> <a href="/wiki/J2000.0" class="mw-redirect" title="J2000.0">J2000.0</a>      <a href="/wiki/Equinox_(celestial_coordinates)" title="Equinox (celestial coordinates)">Equinox</a> <a href="/wiki/J2000.0" class="mw-redirect" title="J2000.0">J2000.0</a> </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">02<sup>h</sup> 19<sup>m</sup> 20.79210<sup>s</sup></span><sup id="cite_ref-aaa474_2_653_2-0" class="reference"><a href="#cite_note-aaa474_2_653-2"><span class="cite-bracket">[</span>2<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>−02° 58′ 39.4956″<sup id="cite_ref-aaa474_2_653_2-1" class="reference"><a href="#cite_note-aaa474_2_653-2"><span class="cite-bracket">[</span>2<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>2.0 <i>to</i> 10.1<sup id="cite_ref-gcvs71_3-0" class="reference"><a href="#cite_note-gcvs71-3"><span class="cite-bracket">[</span>3<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_classification" title="Stellar classification">Spectral type</a> </th> <td>M7 IIIe<sup id="cite_ref-aj114_1584_4-0" class="reference"><a href="#cite_note-aj114_1584-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> <span class="nowrap">(M5e-M9e<sup id="cite_ref-gcvs71_3-1" class="reference"><a href="#cite_note-gcvs71-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>)</span> </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>+0.08<sup id="cite_ref-apj87_5-0" class="reference"><a href="#cite_note-apj87-5"><span class="cite-bracket">[</span>5<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>+1.53<sup id="cite_ref-apj87_5-1" class="reference"><a href="#cite_note-apj87-5"><span class="cite-bracket">[</span>5<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/Mira_variable" title="Mira variable">Mira</a><sup id="cite_ref-gcvs71_3-2" class="reference"><a href="#cite_note-gcvs71-3"><span class="cite-bracket">[</span>3<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>+63.8<sup id="cite_ref-rgcrv_6-0" class="reference"><a href="#cite_note-rgcrv-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup><span class="nowrap"> km/s</span></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> +9.33<sup id="cite_ref-aaa474_2_653_2-2" class="reference"><a href="#cite_note-aaa474_2_653-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><span class="nowrap"> <a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a>/<a href="/wiki/Year" title="Year">yr</a></span> <br /> <abbr title="Declination">Dec.:</abbr> −237.36<sup id="cite_ref-aaa474_2_653_2-3" class="reference"><a href="#cite_note-aaa474_2_653-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><span class="nowrap"> <a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a>/<a href="/wiki/Year" title="Year">yr</a></span> </td></tr><tr style="vertical-align:top;"><td><b><a href="/wiki/Stellar_parallax" title="Stellar parallax">Parallax</a> (π)</b></td><td>10.91<span style="margin-left:0.3em;margin-right:0.15em;">±</span>1.22 <a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a><sup id="cite_ref-aaa474_2_653_2-4" class="reference"><a href="#cite_note-aaa474_2_653-2"><span class="cite-bracket">[</span>2<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>approx. 300 <a href="/wiki/Light-year" title="Light-year">ly</a> <br />(approx. 90 <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>+0.99<sup id="cite_ref-Anderson2012_7-0" class="reference"><a href="#cite_note-Anderson2012-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> (variable)</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/Orbit" title="Orbit">Orbit</a><sup id="cite_ref-orb6_8-0" class="reference"><a href="#cite_note-orb6-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup></th></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Orbital_period" title="Orbital period">Period</a> (P)</b></td><td>497.88 <a href="/wiki/Year" title="Year">yr</a></td></tr><tr style="vertical-align:baseline;"><td><span class="nowrap"><b><a href="/wiki/Semi-major_axis" class="mw-redirect" title="Semi-major axis">Semi-major axis</a> (a)</b></span></td><td>0.8″</td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Eccentricity_(orbit)" class="mw-redirect" title="Eccentricity (orbit)">Eccentricity</a> (e)</b></td><td>0.16</td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Inclination" class="mw-redirect" title="Inclination">Inclination</a> (i)</b></td><td>112°</td></tr><tr style="vertical-align:baseline;"><td><span class="nowrap"><b><a href="/wiki/Longitude_of_the_node" class="mw-redirect" title="Longitude of the node">Longitude of the node</a> (Ω)</b></span></td><td>138.8°</td></tr><tr style="vertical-align:baseline;"><td><span class="nowrap"><b><a href="/wiki/Periastron" class="mw-redirect" title="Periastron">Periastron</a> <a href="/wiki/Epoch_(astronomy)" title="Epoch (astronomy)">epoch</a> (T)</b></span></td><td>2285.75</td></tr><tr style="vertical-align:baseline;"><td><span class="nowrap"><b><a href="/wiki/Argument_of_periastron" class="mw-redirect" title="Argument of periastron">Argument of periastron</a> (ω)</b></span><br />(secondary)</td><td>258.3°</td></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>1.18<sup id="cite_ref-apj275_9-0" class="reference"><a href="#cite_note-apj275-9"><span class="cite-bracket">[</span>9<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>332–402<sup id="cite_ref-aaa421_10-0" class="reference"><a href="#cite_note-aaa421-10"><span class="cite-bracket">[</span>10<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>Luminosity (bolometric)</b></td><td>8,400–9,360<sup id="cite_ref-aaa421_10-1" class="reference"><a href="#cite_note-aaa421-10"><span class="cite-bracket">[</span>10<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/Effective_temperature" title="Effective temperature">Temperature</a></b></td><td>2,918–3,192<sup id="cite_ref-aaa421_10-2" class="reference"><a href="#cite_note-aaa421-10"><span class="cite-bracket">[</span>10<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/Stellar_evolution" title="Stellar evolution">Age</a></b></td><td>6<sup id="cite_ref-apj275_9-1" class="reference"><a href="#cite_note-apj275-9"><span class="cite-bracket">[</span>9<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">Stella Mira, Collum Ceti, Wonderful Star,<sup id="cite_ref-allen1963_11-0" class="reference"><a href="#cite_note-allen1963-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Bayer_designation" title="Bayer designation">ο</a> Ceti, <a href="/wiki/Flamsteed_designation" title="Flamsteed designation">68</a> Ceti, <a href="/wiki/Bonner_Durchmusterung" class="mw-redirect" title="Bonner Durchmusterung">BD</a>−03°353, <a href="/wiki/Henry_Draper_catalogue" class="mw-redirect" title="Henry Draper catalogue">HD</a> 14386, <a href="/wiki/Hipparcos_catalogue" class="mw-redirect" title="Hipparcos catalogue">HIP</a> 10826, <a href="/wiki/Harvard_Revised_catalogue" class="mw-redirect" title="Harvard Revised catalogue">HR</a> 681, <a href="/wiki/Luyten_Two-Tenths_catalogue" class="mw-redirect" title="Luyten Two-Tenths catalogue">LTT</a> 1179, <a href="/wiki/Smithsonian_Astrophysical_Observatory" title="Smithsonian Astrophysical Observatory">SAO</a> 129825</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=Mira">data</a></td></tr> </tbody></table> <p><b>Mira</b> (<span class="rt-commentedText nowrap"><span class="IPA nopopups noexcerpt" lang="en-fonipa"><a href="/wiki/Help:IPA/English" title="Help:IPA/English">/<span style="border-bottom:1px dotted"><span title="/ˈ/: primary stress follows">ˈ</span><span title="'m' in 'my'">m</span><span title="/aɪ/: 'i' in 'tide'">aɪ</span><span title="'r' in 'rye'">r</span><span title="/ə/: 'a' in 'about'">ə</span></span>/</a></span></span>), designation <b>Omicron Ceti</b> (<b>ο Ceti</b>, abbreviated <b>Omicron Cet</b>, <b>ο Cet</b>), is a <a href="/wiki/Red-giant" class="mw-redirect" title="Red-giant">red-giant</a> <a href="/wiki/Star" title="Star">star</a> estimated to be 200–300 <a href="/wiki/Light-year" title="Light-year">light-years</a> from the <a href="/wiki/Sun" title="Sun">Sun</a> in the <a href="/wiki/Constellation" title="Constellation">constellation</a> <a href="/wiki/Cetus" title="Cetus">Cetus</a>. </p><p>ο Ceti is a <a href="/wiki/Binary_star" title="Binary star">binary stellar system</a>, consisting of a variable red giant (Mira A) along with a <a href="/wiki/White_dwarf" title="White dwarf">white dwarf</a> companion (<a href="/wiki/Mira_B" title="Mira B">Mira B</a>). Mira A is a pulsating <a href="/wiki/Variable_star" title="Variable star">variable star</a> and was the first non-<a href="/wiki/Supernova" title="Supernova">supernova</a> <a href="/wiki/Variable_star" title="Variable star">variable star</a> discovered, with the possible exception of <a href="/wiki/Algol" title="Algol">Algol</a>. It is the prototype of the <a href="/wiki/Mira_variable" title="Mira variable">Mira variables</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Nomenclature">Nomenclature</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=1" title="Edit section: Nomenclature"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>ο Ceti (<a href="/wiki/Romanization_of_Greek" title="Romanization of Greek">Latinised</a> to <i>Omicron Ceti</i>) is the star's <a href="/wiki/Bayer_designation" title="Bayer designation">Bayer designation</a>. It was named Mira (<a href="/wiki/Latin" title="Latin">Latin</a> for 'wonderful' or 'astonishing') by <a href="/wiki/Johannes_Hevelius" title="Johannes Hevelius">Johannes Hevelius</a> in his <i>Historiola Mirae Stellae</i> (1662). In 2016, the <a href="/wiki/International_Astronomical_Union" title="International Astronomical Union">International Astronomical Union</a> organized a <a href="/wiki/Working_Group_on_Star_Names" class="mw-redirect" title="Working Group on Star Names">Working Group on Star Names</a> (WGSN)<sup id="cite_ref-WGSN_12-0" class="reference"><a href="#cite_note-WGSN-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> to catalog and standardize proper names for stars. The WGSN's first bulletin of July 2016 included a table of the first two batches of names approved by the WGSN, which included Mira for this star.<sup id="cite_ref-WGSN1_13-0" class="reference"><a href="#cite_note-WGSN1-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:MiraCC.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2f/MiraCC.jpg/220px-MiraCC.jpg" decoding="async" width="220" height="279" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2f/MiraCC.jpg/330px-MiraCC.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2f/MiraCC.jpg/440px-MiraCC.jpg 2x" data-file-width="512" data-file-height="650" /></a><figcaption>Mira at two different times</figcaption></figure> <div class="mw-heading mw-heading2"><h2 id="Observation_history">Observation history</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=2" title="Edit section: Observation history"><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:Mira_light_curve.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/89/Mira_light_curve.png/260px-Mira_light_curve.png" decoding="async" width="260" height="134" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/89/Mira_light_curve.png/390px-Mira_light_curve.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/89/Mira_light_curve.png/520px-Mira_light_curve.png 2x" data-file-width="1125" data-file-height="579" /></a><figcaption>Visual <a href="/wiki/Light_curve" title="Light curve">light curve</a> of Mira, generated using the <a href="/wiki/AAVSO" class="mw-redirect" title="AAVSO">AAVSO</a> light curve generator tool<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citing_sources#What_information_to_include" title="Wikipedia:Citing sources"><span title="A complete citation is needed. (December 2021)">full citation needed</span></a></i>]</sup></figcaption></figure> <p>Evidence that the variability of Mira was known in <a href="/wiki/History_of_China" title="History of China">ancient China</a>, <a href="/wiki/Babylon" title="Babylon">Babylon</a> or <a href="/wiki/Ancient_Greece" title="Ancient Greece">Greece</a> is at best only circumstantial.<sup id="cite_ref-wilk_14-0" class="reference"><a href="#cite_note-wilk-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> What is certain is that the variability of Mira was recorded by the astronomer <a href="/wiki/David_Fabricius" title="David Fabricius">David Fabricius</a> beginning on August 3, 1596. Observing what he thought was the planet <a href="/wiki/Mercury_(planet)" title="Mercury (planet)">Mercury</a> (later identified as <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>), he needed a reference star for comparing positions and picked a previously unremarked third-magnitude star nearby. By August 21, however, it had increased in brightness by one <a href="/wiki/Apparent_magnitude" title="Apparent magnitude">magnitude</a>, then by October had faded from view. Fabricius assumed it was a nova, but then saw it again on February 16, 1609.<sup id="cite_ref-hr_15-0" class="reference"><a href="#cite_note-hr-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>In 1638 <a href="/wiki/Johannes_Phocylides_Holwarda" title="Johannes Phocylides Holwarda">Johannes Holwarda</a> determined a period of the star's reappearances, eleven months; he is often credited with the discovery of Mira's variability. <a href="/wiki/Johannes_Hevelius" title="Johannes Hevelius">Johannes Hevelius</a> was observing it at the same time and named it Mira in 1662, for it acted like no other known star. <a href="/wiki/Ismail_Bouillaud" class="mw-redirect" title="Ismail Bouillaud">Ismail Bouillaud</a> then estimated its period at 333 days, less than one day off the modern value of 332 days. Bouillaud's measurement may not have been erroneous: Mira is known to vary slightly in period, and may even be slowly changing over time. The star is estimated to be a six-billion-year-old <a href="/wiki/Red_giant" title="Red giant">red giant</a>.<sup id="cite_ref-apj275_9-2" class="reference"><a href="#cite_note-apj275-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Mira_the_star.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Mira_the_star.jpg/220px-Mira_the_star.jpg" decoding="async" width="220" height="188" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Mira_the_star.jpg/330px-Mira_the_star.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Mira_the_star.jpg/440px-Mira_the_star.jpg 2x" data-file-width="777" data-file-height="664" /></a><figcaption>Mira as seen from the Earth</figcaption></figure> <p>There is considerable speculation as to whether Mira had been observed prior to Fabricius. Certainly <a href="/wiki/Algol" title="Algol">Algol</a>'s history (known for certain as a variable only in 1667, but with legends and such dating back to antiquity showing that it had been observed with suspicion for millennia) suggests that Mira might have been known, too. <a href="/wiki/Karl_Manitius" title="Karl Manitius">Karl Manitius</a>, a modern translator of <a href="/wiki/Hipparchus" title="Hipparchus">Hipparchus</a>' <i>Commentary on Aratus</i>, has suggested that certain lines from that second-century text may be about Mira. The other pre-telescopic Western catalogs of <a href="/wiki/Ptolemy" title="Ptolemy">Ptolemy</a>, <a href="/wiki/Al-Sufi" class="mw-redirect" title="Al-Sufi">al-Sufi</a>, <a href="/wiki/Ulugh_Beg" title="Ulugh Beg">Ulugh Beg</a> and <a href="/wiki/Tycho_Brahe" title="Tycho Brahe">Tycho Brahe</a> turn up no mentions, even as a regular star. There are three observations from Chinese and Korean archives, in 1596, 1070 and the same year when Hipparchus would have made his observation (134 BC) that are suggestive.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (October 2017)">citation needed</span></a></i>]</sup> </p><p>An estimate obtained in 1925 from interferometry by <a href="/wiki/Francis_G._Pease" title="Francis G. Pease">Francis G. Pease</a> at the <a href="/wiki/Mount_Wilson_Observatory" title="Mount Wilson Observatory">Mount Wilson Observatory</a> gave Mira a diameter of 250-260 million miles (402 to 418 million km, or approximately 290-300 <a href="/wiki/Solar_radius" title="Solar radius"><var>R</var><sub>☉</sub></a>), making it the then-second largest star known and comparable to historical estimates of <a href="/wiki/Betelgeuse" title="Betelgeuse">Betelgeuse</a>,<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> surpassed only by <a href="/wiki/Antares" title="Antares">Antares</a>.<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> On the contrary, <a href="/wiki/Otto_Struve" title="Otto Struve">Otto Struve</a> thought of Mira as a <a href="/wiki/Red_supergiant" title="Red supergiant">red supergiant</a> with an approximate radius of 500 <var>R</var><sub>☉</sub>, while modern consensus accepts Mira to be a highly evolved <a href="/wiki/Asymptotic_giant_branch" title="Asymptotic giant branch">asymptotic giant branch</a> star.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Distance_and_background_Information">Distance and background Information</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=3" title="Edit section: Distance and background Information"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Pre-<i><a href="/wiki/Hipparcos" title="Hipparcos">Hipparcos</a></i> estimates centered on 220 <a href="/wiki/Light-year" title="Light-year">light-years</a>;<sup id="cite_ref-burnham1980_19-0" class="reference"><a href="#cite_note-burnham1980-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> while Hipparcos data from the 2007 reduction suggest a distance of 299 light-years, with a <a href="/wiki/Margin_of_error" title="Margin of error">margin of error</a> of 11%.<sup id="cite_ref-aaa474_2_653_2-5" class="reference"><a href="#cite_note-aaa474_2_653-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The age of Mira is suspected to be about 6 billion years old. Its gaseous material is scattered, as much as one-thousandth as thin as the air around us. Mira is also among the coolest known bright stars of the red giant class, with a temperature ranging from 3,000 to 4,000 degrees Fahrenheit (1,600 to 2,200 degrees Celsius). As with other long-period variables, Mira's deep red color at minimum pales to a lighter orange as the star brightens. Within the next few million years, Mira will discard its outer layers and become a planetary nebula, leaving behind a white dwarf. </p> <div class="mw-heading mw-heading2"><h2 id="Stellar_system">Stellar system</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=4" title="Edit section: Stellar system"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>This binary star system consists of a red giant (Mira, designated Mira A) undergoing mass loss and a high-temperature <a href="/wiki/White_dwarf" title="White dwarf">white dwarf</a> companion (Mira B) that is accreting mass from the primary. Such an arrangement of stars is known as a symbiotic system and this is the closest such symbiotic pair to the <a href="/wiki/Sun" title="Sun">Sun</a>. Examination of this system by the <a href="/wiki/Chandra_X-ray_Observatory" title="Chandra X-ray Observatory">Chandra X-ray Observatory</a> shows a direct mass exchange along a bridge of matter from the primary to the white dwarf. The two stars are currently separated by about 70 <a href="/wiki/Astronomical_unit" title="Astronomical unit">astronomical units</a>.<sup id="cite_ref-aass304_1_379_20-0" class="reference"><a href="#cite_note-aass304_1_379-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Component_A">Component A</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=5" title="Edit section: Component A"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Mira_in_UV_and_Visible_Light.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Mira_in_UV_and_Visible_Light.jpg/220px-Mira_in_UV_and_Visible_Light.jpg" decoding="async" width="220" height="224" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Mira_in_UV_and_Visible_Light.jpg/330px-Mira_in_UV_and_Visible_Light.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2a/Mira_in_UV_and_Visible_Light.jpg/440px-Mira_in_UV_and_Visible_Light.jpg 2x" data-file-width="441" data-file-height="450" /></a><figcaption>Mira in UV and visible light</figcaption></figure> <p>Mira A is currently an <a href="/wiki/Asymptotic_giant_branch" title="Asymptotic giant branch">asymptotic giant branch</a> (AGB) star, in the thermally pulsing AGB phase.<sup id="cite_ref-pogge_21-0" class="reference"><a href="#cite_note-pogge-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-lopez_22-0" class="reference"><a href="#cite_note-lopez-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> Each pulse lasts a decade or more, and an amount of time on the order of 10,000 years passes between each pulse. With every pulse cycle Mira increases in luminosity and the pulses grow stronger. This is also causing dynamic instability in Mira, resulting in dramatic changes in luminosity and size over shorter, irregular time periods.<sup id="cite_ref-deloore_23-0" class="reference"><a href="#cite_note-deloore-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </p><p>The overall shape of Mira A has been observed to change, exhibiting pronounced departures from symmetry. These appear to be caused by bright spots on the surface that evolve their shape on time scales of 3–14 months. Observations of Mira A in the <a href="/wiki/Ultraviolet" title="Ultraviolet">ultraviolet</a> band by the <a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble Space Telescope</a> have shown a plume-like feature pointing toward the companion star.<sup id="cite_ref-lopez_22-1" class="reference"><a href="#cite_note-lopez-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Variability">Variability</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=6" 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:Mira_1997.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Mira_1997.jpg/220px-Mira_1997.jpg" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Mira_1997.jpg/330px-Mira_1997.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Mira_1997.jpg/440px-Mira_1997.jpg 2x" data-file-width="502" data-file-height="502" /></a><figcaption>Mira as seen by the <a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble Space Telescope</a> in August 1997</figcaption></figure> <p>Mira A is a <a href="/wiki/Variable_star" title="Variable star">variable star</a>, specifically the prototypical <a href="/wiki/Mira_variable" title="Mira variable">Mira variable</a>. The 6,000 to 7,000 known stars of this class<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> are all <a href="/wiki/Red_giant" title="Red giant">red giants</a> whose surfaces pulsate in such a way as to increase and decrease in brightness over periods ranging from about 80 to more than 1,000 days. </p><p>In the particular case of Mira, its increases in brightness take it up to about <a href="/wiki/Apparent_magnitude" title="Apparent magnitude">magnitude</a> 3.5 on average, placing it among the brighter <a href="/wiki/List_of_stars_in_Cetus" title="List of stars in Cetus">stars in the Cetus constellation</a>. Individual cycles vary too; well-attested maxima go as high as magnitude 2.0 in brightness and as low as 4.9, a range almost 15 times in brightness, and there are historical suggestions that the real spread may be three times this or more. Minima range much less, and have historically been between 8.6 and 10.1, a factor of four times in luminosity. The total swing in brightness from absolute maximum to absolute minimum (two events which did not occur on the same cycle) is 1,700 times. Mira emits the vast majority of its <a href="/wiki/Solar_irradiance" title="Solar irradiance">radiation</a> in the <a href="/wiki/Infrared" title="Infrared">infrared</a>, and its variability in that band is only about two magnitudes. The shape of its <a href="/wiki/Light_curve" title="Light curve">light curve</a> is of an increase over about 100 days, and the return to minimum taking twice as long.<sup id="cite_ref-braune_25-0" class="reference"><a href="#cite_note-braune-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> Contemporary approximate maxima for Mira:<sup id="cite_ref-seds_26-0" class="reference"><a href="#cite_note-seds-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </p> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 10em;"> <ul><li>Oct 21–31, 1999</li> <li>Sep 21–30, 2000</li> <li>Aug 21–31, 2001</li> <li>Jul 21–31, 2002</li> <li>Jun 21–30, 2003</li> <li>May 21–31, 2004</li> <li>Apr 11–20, 2005</li> <li>Mar 11–20, 2006</li> <li>Feb <span aria-hidden="true" style="visibility:hidden;color:transparent;">0</span>1–10, 2007</li> <li>Jan 21–31, 2008</li> <li>Dec 21–31, 2008</li> <li>Nov 21–30, 2009</li> <li>Oct 21–31, 2010</li> <li>Sep 21–30, 2011</li> <li>Aug 27, 2012</li> <li>Jul 26, 2013</li> <li>May 12, 2014</li> <li>Apr 9, 2015</li> <li>Mar 6, 2016</li> <li>Jan 31, 2017</li> <li>Dec 29, 2017</li> <li>Nov 26, 2018</li> <li>Oct 24, 2019</li> <li>Sep 20, 2020</li> <li>Aug 18, 2021</li> <li>Jul 16, 2022</li> <li>Jun 13, 2023</li> <li>May 10, 2024</li></ul> </div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Chi_Cygni_pulsations.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/19/Chi_Cygni_pulsations.png/330px-Chi_Cygni_pulsations.png" decoding="async" width="290" height="315" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/19/Chi_Cygni_pulsations.png/500px-Chi_Cygni_pulsations.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/19/Chi_Cygni_pulsations.png/960px-Chi_Cygni_pulsations.png 2x" data-file-width="1180" data-file-height="1280" /></a><figcaption>Pulsations in <a href="/wiki/%CE%A7_Cygni" class="mw-redirect" title="Χ Cygni">χ Cygni</a>, showing the relation between the visual light curve, temperature, radius and luminosity typical of <a href="/wiki/Mira_variable" title="Mira variable">Mira variable</a> stars</figcaption></figure> <p>From northern temperate latitudes, Mira is generally not visible between late March and June due to its proximity to the Sun. This means that at times several years can pass without it appearing as a naked-eye object. </p><p>The pulsations of Mira variables cause the star to expand and contract, but also to change its temperature. The temperature is highest slightly after the visual maximum, and lowest slightly before minimum. The photosphere, measured at the <a href="/wiki/Rosseland_radius" class="mw-redirect" title="Rosseland radius">Rosseland radius</a>, is smallest just before visual maximum and close to the time of maximum temperature. The largest size is reached slightly before the time of lowest temperature. The <a href="/wiki/Bolometric_luminosity" class="mw-redirect" title="Bolometric luminosity">bolometric luminosity</a> is <a href="/wiki/Stefan%E2%80%93Boltzmann_law" title="Stefan–Boltzmann law">proportional to the fourth power</a> of the temperature and the square of the radius, but the radius varies by over 20% and the temperature by less than 10%.<sup id="cite_ref-lacour_27-0" class="reference"><a href="#cite_note-lacour-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p><p>In Mira, the highest luminosity occurs close to the time when the star is hottest and smallest. The visual magnitude is determined both by the luminosity and by the proportion of the <a href="/wiki/Electromagnetic_radiation" title="Electromagnetic radiation">radiation</a> that occurs at visual wavelengths. Only a small proportion of the radiation is emitted at visual wavelengths and this proportion is very strongly influenced by the temperature (<a href="/wiki/Planck%27s_law" title="Planck's law">Planck's law</a>). Combined with the <a href="/wiki/Bolometric_luminosity" class="mw-redirect" title="Bolometric luminosity">overall luminosity</a> changes, this creates the very big <a href="/wiki/Visual_magnitude" class="mw-redirect" title="Visual magnitude">visual magnitude</a> variation with the maximum occurring when the temperature is high.<sup id="cite_ref-aaa421_10-3" class="reference"><a href="#cite_note-aaa421-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Infrared" title="Infrared">Infrared</a> <a href="/wiki/VLTI" class="mw-redirect" title="VLTI">VLTI</a> measurements of Mira at <a href="/wiki/Phase_(waves)" title="Phase (waves)">phases</a> 0.13, 0.18, 0.26, 0.40 and 0.47, show that the radius varies from <span class="nowrap"><span data-sort-value="7002332000000000000♠"></span>332<span style="margin-left:0.3em;margin-right:0.15em;">±</span>38 <a href="/wiki/Solar_radius" title="Solar radius"><var>R</var><sub>☉</sub></a></span> at phase 0.13 just after maximum to <span class="nowrap"><span data-sort-value="7002402000000000000♠"></span>402<span style="margin-left:0.3em;margin-right:0.15em;">±</span>46 <var>R</var><sub>☉</sub></span> at phase 0.40 approaching minimum. The temperature at phase 0.13 is <span class="nowrap"><span data-sort-value="7003319200000000000♠"></span>3,192<span style="margin-left:0.3em;margin-right:0.15em;">±</span>200 <a href="/wiki/Kelvin" title="Kelvin">K</a></span> and <span class="nowrap"><span data-sort-value="7003291800000000000♠"></span>2,918<span style="margin-left:0.3em;margin-right:0.15em;">±</span>183 K</span> at phase 0.26 about halfway from maximum to minimum. The luminosity is calculated to be <span class="nowrap"><span data-sort-value="7003936000000000000♠"></span>9,360<span style="margin-left:0.3em;margin-right:0.15em;">±</span>3,140 <a href="/wiki/Solar_luminosity" title="Solar luminosity"><var>L</var><sub>☉</sub></a></span> at phase 0.13 and <span class="nowrap"><span data-sort-value="7003840000000000000♠"></span>8,400<span style="margin-left:0.3em;margin-right:0.15em;">±</span>2,820 <var>L</var><sub>☉</sub></span> at phase 0.26.<sup id="cite_ref-aaa421_10-4" class="reference"><a href="#cite_note-aaa421-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>The pulsations of Mira have the effect of expanding its photosphere by around 50% compared to a non-pulsating star. In the case of Mira, if it was not pulsating it is modelled to have a radius of only around 240 <var>R</var><sub>☉</sub>.<sup id="cite_ref-aaa421_10-5" class="reference"><a href="#cite_note-aaa421-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading4"><h4 id="Mass_loss">Mass loss</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=7" title="Edit section: Mass loss"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ultraviolet studies of Mira by <a href="/wiki/NASA" title="NASA">NASA</a>'s Galaxy Evolution Explorer (<a href="/wiki/GALEX" title="GALEX">GALEX</a>) space telescope have revealed that it sheds a trail of material from the outer envelope, leaving a tail 13 light-years in length, formed over tens of thousands of years.<sup id="cite_ref-martin_28-0" class="reference"><a href="#cite_note-martin-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-minkel_29-0" class="reference"><a href="#cite_note-minkel-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> It is thought that a hot <a href="/wiki/Bow_shock" title="Bow shock">bow wave</a> of compressed plasma/gas is the cause of the tail; the bow wave is a result of the interaction of the stellar wind from Mira A with gas in interstellar space, through which Mira is moving at an extremely high speed of 130 kilometres per second (290,000 miles per hour).<sup id="cite_ref-wareing2007_30-0" class="reference"><a href="#cite_note-wareing2007-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> The tail consists of material stripped from the head of the bow wave, which is also visible in ultraviolet observations. Mira's bow shock will eventually evolve into a <a href="/wiki/Planetary_nebula" title="Planetary nebula">planetary nebula</a>, the form of which will be considerably affected by the motion through the <a href="/wiki/Interstellar_medium" title="Interstellar medium">interstellar medium</a> (ISM).<sup id="cite_ref-wareing_31-0" class="reference"><a href="#cite_note-wareing-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> Mira’s tail offers a unique opportunity to study how stars like our sun die and ultimately seed new solar systems. As Mira hurls along, its tail drops off carbon, oxygen and other important elements needed for new stars, planets, and possibly even life to form. This tail material, visible now for the first time, has been shed over the past 30,000 years. </p> <figure class="mw-halign-center" typeof="mw:File/Thumb"><a href="/wiki/File:Mira_the_star-by_Nasa_alt_crop.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Mira_the_star-by_Nasa_alt_crop.jpg/699px-Mira_the_star-by_Nasa_alt_crop.jpg" decoding="async" width="699" height="186" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Mira_the_star-by_Nasa_alt_crop.jpg/1049px-Mira_the_star-by_Nasa_alt_crop.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Mira_the_star-by_Nasa_alt_crop.jpg/1398px-Mira_the_star-by_Nasa_alt_crop.jpg 2x" data-file-width="2824" data-file-height="750" /></a><figcaption>Ultraviolet mosaic of Mira's bow shock and tail obtained using NASA's Galaxy Evolution Explorer (<a href="/wiki/GALEX" title="GALEX">GALEX</a>)</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Component_B">Component B</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=8" title="Edit section: Component B"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951" /><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Mira_B" title="Mira B">Mira B</a></div> <p>The companion star is <span class="nowrap"><span data-sort-value="6999487000000000000♠"></span>0.487<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.006 <a href="/wiki/Arcseconds" class="mw-redirect" title="Arcseconds">arcseconds</a></span> away from the main star.<sup id="cite_ref-ramstedt2014_32-0" class="reference"><a href="#cite_note-ramstedt2014-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> It was resolved by the <a href="/wiki/Hubble_Space_Telescope" title="Hubble Space Telescope">Hubble Space Telescope</a> in 1995, when it was 70 <a href="/wiki/Astronomical_unit" title="Astronomical unit">astronomical units</a> from the primary; and results were announced in 1997. The HST ultraviolet images and later X-ray images by the <a href="/wiki/Chandra_X-ray_Observatory" title="Chandra X-ray Observatory">Chandra space telescope</a> show a spiral of gas rising off Mira in the direction of Mira B. The companion's <a href="/wiki/Orbital_period" title="Orbital period">orbital period</a> around Mira is approximately 400 years.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (October 2022)">citation needed</span></a></i>]</sup> </p><p>In 2007, observations showed a <a href="/wiki/Protoplanetary_disc" class="mw-redirect" title="Protoplanetary disc">protoplanetary disc</a> around the companion, Mira B. This disc is being accreted from material in the <a href="/wiki/Stellar_wind" title="Stellar wind">solar wind</a> from Mira and could eventually form new planets. These observations also hinted that the companion was a <a href="/wiki/Main-sequence_star" class="mw-redirect" title="Main-sequence star">main-sequence star</a> of around 0.7 <a href="/wiki/Solar_mass" title="Solar mass">solar mass</a> and <a href="/wiki/Spectral_type" class="mw-redirect" title="Spectral type">spectral type</a> K, instead of a white dwarf as originally thought.<sup id="cite_ref-mirab_33-0" class="reference"><a href="#cite_note-mirab-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> However, in 2010 further research indicated that Mira B is, in fact, a white dwarf.<sup id="cite_ref-sokoloski_34-0" class="reference"><a href="#cite_note-sokoloski-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=9" 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-IAU-CSN-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-IAU-CSN_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.pas.rochester.edu/~emamajek/WGSN/IAU-CSN.txt">"IAU Catalog of Star Names"</a><span class="reference-accessdate">. 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"Interferometric observations of the Mira star o Ceti with the VLTI/VINCI instrument in the near-infrared". <i>Astronomy & Astrophysics</i>. <b>421</b> (2): <span class="nowrap">703–</span>714. <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/0404248">astro-ph/0404248</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/2004A&A...421..703W">2004A&A...421..703W</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%3A20035826">10.1051/0004-6361:20035826</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:17009595">17009595</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=Interferometric+observations+of+the+Mira+star+o+Ceti+with+the+VLTI%2FVINCI+instrument+in+the+near-infrared&rft.volume=421&rft.issue=2&rft.pages=%3Cspan+class%3D%22nowrap%22%3E703-%3C%2Fspan%3E714&rft.date=2004&rft_id=info%3Aarxiv%2Fastro-ph%2F0404248&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A17009595%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1051%2F0004-6361%3A20035826&rft_id=info%3Abibcode%2F2004A%26A...421..703W&rft.aulast=Woodruff&rft.aufirst=H.+C.&rft.au=Eberhardt%2C+M.&rft.au=Driebe%2C+T.&rft.au=Hofmann%2C+K.-H.&rft.au=Ohnaka%2C+K.&rft.au=Richichi%2C+A.&rft.au=Schert%2C+D.&rft.au=Sch%C3%B6ller%2C+M.&rft.au=Scholz%2C+M.&rft.au=Weigelt%2C+G.&rft.au=Wittkowski%2C+M.&rft.au=Wood%2C+P.+R.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-allen1963-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-allen1963_11-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFAllen1963" class="citation book cs1">Allen, Richard H. (1963). <span class="id-lock-registration" title="Free registration required"><a rel="nofollow" class="external text" href="https://archive.org/details/starnamestheirlo00alle"><i>Star Names: Their Lore and Meaning</i></a></span>. New York: Dover Publications. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-486-21079-0" title="Special:BookSources/0-486-21079-0"><bdi>0-486-21079-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Star+Names%3A+Their+Lore+and+Meaning&rft.place=New+York&rft.pub=Dover+Publications&rft.date=1963&rft.isbn=0-486-21079-0&rft.aulast=Allen&rft.aufirst=Richard+H.&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Fstarnamestheirlo00alle&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-WGSN-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-WGSN_12-0">^</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://www.iau.org/science/scientific_bodies/working_groups/280/">"IAU Working Group on Star Names (WGSN)"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">22 May</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=IAU+Working+Group+on+Star+Names+%28WGSN%29&rft_id=https%3A%2F%2Fwww.iau.org%2Fscience%2Fscientific_bodies%2Fworking_groups%2F280%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-WGSN1-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-WGSN1_13-0">^</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="http://www.pas.rochester.edu/~emamajek/WGSN/WGSN_bulletin1.pdf">"Bulletin of the IAU Working Group on Star Names, No. 1"</a> <span class="cs1-format">(PDF)</span><span class="reference-accessdate">. Retrieved <span class="nowrap">28 July</span> 2016</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Bulletin+of+the+IAU+Working+Group+on+Star+Names%2C+No.+1&rft_id=http%3A%2F%2Fwww.pas.rochester.edu%2F~emamajek%2FWGSN%2FWGSN_bulletin1.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-wilk-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-wilk_14-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFWilk1996" class="citation journal cs1">Wilk, Stephen R (1996). "Mythological Evidence for Ancient Observations of Variable Stars". <i>The Journal of the American Association of Variable Star Observers</i>. <b>24</b> (2): <span class="nowrap">129–</span>133. <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/1996JAVSO..24..129W">1996JAVSO..24..129W</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Journal+of+the+American+Association+of+Variable+Star+Observers&rft.atitle=Mythological+Evidence+for+Ancient+Observations+of+Variable+Stars&rft.volume=24&rft.issue=2&rft.pages=%3Cspan+class%3D%22nowrap%22%3E129-%3C%2Fspan%3E133&rft.date=1996&rft_id=info%3Abibcode%2F1996JAVSO..24..129W&rft.aulast=Wilk&rft.aufirst=Stephen+R&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-hr-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-hr_15-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFHoffleit1997" class="citation journal cs1">Hoffleit, Dorrit (1997). "History of the Discovery of Mira Stars". <i>The Journal of the American Association of Variable Star Observers</i>. <b>25</b> (2): 115. <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/1997JAVSO..25..115H">1997JAVSO..25..115H</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+Journal+of+the+American+Association+of+Variable+Star+Observers&rft.atitle=History+of+the+Discovery+of+Mira+Stars&rft.volume=25&rft.issue=2&rft.pages=115&rft.date=1997&rft_id=info%3Abibcode%2F1997JAVSO..25..115H&rft.aulast=Hoffleit&rft.aufirst=Dorrit&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" 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 id="CITEREFPease1925" class="citation journal cs1">Pease, F. G. (1925). <a rel="nofollow" class="external text" href="https://www.jstor.org/stable/40693379">"The Diameter of Mira Ceti at the 1925 Maximum"</a>. <i>Publications of the Astronomical Society of the Pacific</i>. <b>37</b> (216): <span class="nowrap">89–</span>90. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0004-6280">0004-6280</a>. <a href="/wiki/JSTOR_(identifier)" class="mw-redirect" title="JSTOR (identifier)">JSTOR</a> <a rel="nofollow" class="external text" href="https://www.jstor.org/stable/40693379">40693379</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Publications+of+the+Astronomical+Society+of+the+Pacific&rft.atitle=The+Diameter+of+Mira+Ceti+at+the+1925+Maximum&rft.volume=37&rft.issue=216&rft.pages=%3Cspan+class%3D%22nowrap%22%3E89-%3C%2Fspan%3E90&rft.date=1925&rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F40693379%23id-name%3DJSTOR&rft.issn=0004-6280&rft.aulast=Pease&rft.aufirst=F.+G.&rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F40693379&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation journal cs1"><a rel="nofollow" class="external text" href="https://www.jstor.org/stable/1650052">"Science News"</a>. <i>Science</i>. <b>61</b> (1576): <span class="nowrap">x–</span>xiv. 1925. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/0036-8075">0036-8075</a>. <a href="/wiki/JSTOR_(identifier)" class="mw-redirect" title="JSTOR (identifier)">JSTOR</a> <a rel="nofollow" class="external text" href="https://www.jstor.org/stable/1650052">1650052</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Science&rft.atitle=Science+News&rft.volume=61&rft.issue=1576&rft.pages=%3Cspan+class%3D%22nowrap%22%3Ex-%3C%2Fspan%3Exiv&rft.date=1925&rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F1650052%23id-name%3DJSTOR&rft.issn=0036-8075&rft_id=https%3A%2F%2Fwww.jstor.org%2Fstable%2F1650052&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation book cs1"><a rel="nofollow" class="external text" href="http://archive.org/details/Galaxy_v23n06_1965-08"><i>Galaxy v23n06 (1965 08)</i></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Galaxy+v23n06+%281965+08%29&rft_id=http%3A%2F%2Farchive.org%2Fdetails%2FGalaxy_v23n06_1965-08&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-burnham1980-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-burnham1980_19-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFBurnham1980" class="citation book cs1">Burnham, Robert Jr. (1980). <i>Burnham's Celestial Handbook</i>. Vol. 1. New York: Dover Publications Inc. p. 634.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Burnham%27s+Celestial+Handbook&rft.place=New+York&rft.pages=634&rft.pub=Dover+Publications+Inc.&rft.date=1980&rft.aulast=Burnham&rft.aufirst=Robert+Jr.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-aass304_1_379-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-aass304_1_379_20-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFKarovska2006" class="citation journal cs1">Karovska, Margarita (August 2006). "Future Prospects for Ultra-High Resolution Imaging of Binary Systems at UV and X-rat Wavelengths". <i>Astrophysics and Space Science</i>. 304. <b>304</b> (<span class="nowrap">1–</span>4): <span class="nowrap">379–</span>382. <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/2006Ap&SS.304..379K">2006Ap&SS.304..379K</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1007%2Fs10509-006-9146-4">10.1007/s10509-006-9146-4</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:124913393">124913393</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Astrophysics+and+Space+Science&rft.atitle=Future+Prospects+for+Ultra-High+Resolution+Imaging+of+Binary+Systems+at+UV+and+X-rat+Wavelengths&rft.volume=304&rft.issue=%3Cspan+class%3D%22nowrap%22%3E1%E2%80%93%3C%2Fspan%3E4&rft.pages=%3Cspan+class%3D%22nowrap%22%3E379-%3C%2Fspan%3E382&rft.date=2006-08&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A124913393%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1007%2Fs10509-006-9146-4&rft_id=info%3Abibcode%2F2006Ap%26SS.304..379K&rft.aulast=Karovska&rft.aufirst=Margarita&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-pogge-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-pogge_21-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFPogge2006" class="citation web cs1">Pogge, Richard (January 21, 2006). <a rel="nofollow" class="external text" href="http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit2/lowmass.html">"Lecture 16: The Evolution of Low-Mass Stars"</a>. Ohio State University<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-12-11</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Lecture+16%3A+The+Evolution+of+Low-Mass+Stars&rft.pub=Ohio+State+University&rft.date=2006-01-21&rft.aulast=Pogge&rft.aufirst=Richard&rft_id=http%3A%2F%2Fwww.astronomy.ohio-state.edu%2F~pogge%2FAst162%2FUnit2%2Flowmass.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-lopez-22"><span class="mw-cite-backlink">^ <a href="#cite_ref-lopez_22-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-lopez_22-1"><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="CITEREFLopez1999" class="citation conference cs1">Lopez, B. (1999). <i>AGB and post-AGB stars at high angular resolution</i>. Proceedings IAU Symposium #191: Asymptotic Giant Branch Stars. p. 409. <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/1999IAUS..191..409L">1999IAUS..191..409L</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=conference&rft.btitle=AGB+and+post-AGB+stars+at+high+angular+resolution&rft.pages=409&rft.date=1999&rft_id=info%3Abibcode%2F1999IAUS..191..409L&rft.aulast=Lopez&rft.aufirst=B.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-deloore-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-deloore_23-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFDe_LooreDoom,_C1992" class="citation book cs1">De Loore, C. W. H.; Doom, C (1992). <i>Structure and Evolution of Single and Binary Stars</i>. Springer. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-7923-1768-8" title="Special:BookSources/0-7923-1768-8"><bdi>0-7923-1768-8</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Structure+and+Evolution+of+Single+and+Binary+Stars&rft.pub=Springer&rft.date=1992&rft.isbn=0-7923-1768-8&rft.aulast=De+Loore&rft.aufirst=C.+W.+H.&rft.au=Doom%2C+C&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-24">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="ftp://cdsarc.u-strasbg.fr/pub/cats/II/250/vartype.txt">GCVS: vartype.txt</a> from the <a href="/wiki/General_Catalogue_of_Variable_Stars" title="General Catalogue of Variable Stars">GCVS</a> catalogue (statistics at the end of the file indicate 6,006 confirmed and 1,237 probable Mira variables)</span> </li> <li id="cite_note-braune-25"><span class="mw-cite-backlink"><b><a href="#cite_ref-braune_25-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFBraune" class="citation web cs1">Braune, Werner. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070810065942/http://www.bav-astro.de/index_e.html">"Bundesdeutsche Arbeitsgemeinschaft für Veränderliche Sterne"</a>. Archived from <a rel="nofollow" class="external text" href="http://www.bav-astro.de/index_e.html">the original</a> on 2007-08-10<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-08-16</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Bundesdeutsche+Arbeitsgemeinschaft+f%C3%BCr+Ver%C3%A4nderliche+Sterne&rft.aulast=Braune&rft.aufirst=Werner&rft_id=http%3A%2F%2Fwww.bav-astro.de%2Findex_e.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-seds-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-seds_26-0">^</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="http://spider.seds.org/spider/Vars/mira.html">"SEDS - Mira"</a><span class="reference-accessdate">. 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"Born-Again Protoplanetary Disk around Mira B". <i>The Astrophysical Journal</i>. <b>662</b> (1): <span class="nowrap">651–</span>657. <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/0703244">astro-ph/0703244</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/2007ApJ...662..651I">2007ApJ...662..651I</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%2F517993">10.1086/517993</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:16694">16694</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=Born-Again+Protoplanetary+Disk+around+Mira+B&rft.volume=662&rft.issue=1&rft.pages=%3Cspan+class%3D%22nowrap%22%3E651-%3C%2Fspan%3E657&rft.date=2007&rft_id=info%3Aarxiv%2Fastro-ph%2F0703244&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A16694%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1086%2F517993&rft_id=info%3Abibcode%2F2007ApJ...662..651I&rft.aulast=Ireland&rft.aufirst=M.+J.&rft.au=Monnier%2C+J.+D.&rft.au=Tuthill%2C+P.+G.&rft.au=Cohen%2C+R.+W.&rft.au=De+Buizer%2C+J.+M.&rft.au=Packham%2C+C.&rft.au=Ciardi%2C+D.&rft.au=Hayward%2C+T.&rft.au=Lloyd%2C+J.+P.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> <li id="cite_note-sokoloski-34"><span class="mw-cite-backlink"><b><a href="#cite_ref-sokoloski_34-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFSokoloskiLars_Bildsten2010" class="citation journal cs1">Sokoloski; Lars Bildsten (2010). "Evidence for the White Dwarf Nature of Mira B". <i>The Astrophysical Journal</i>. <b>723</b> (2): <span class="nowrap">1188–</span>1194. <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/1009.2509v1">1009.2509v1</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/2010ApJ...723.1188S">2010ApJ...723.1188S</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1088%2F0004-637X%2F723%2F2%2F1188">10.1088/0004-637X/723/2/1188</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:119247560">119247560</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=Evidence+for+the+White+Dwarf+Nature+of+Mira+B&rft.volume=723&rft.issue=2&rft.pages=%3Cspan+class%3D%22nowrap%22%3E1188-%3C%2Fspan%3E1194&rft.date=2010&rft_id=info%3Aarxiv%2F1009.2509v1&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A119247560%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1088%2F0004-637X%2F723%2F2%2F1188&rft_id=info%3Abibcode%2F2010ApJ...723.1188S&rft.au=Sokoloski&rft.au=Lars+Bildsten&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Further_reading">Further reading</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Mira&action=edit&section=10" title="Edit section: Further reading"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation encyclopaedia cs1"><a rel="nofollow" class="external text" href="http://www.daviddarling.info/encyclopedia/M/Mira.html">"Mira (Omicron Ceti)"</a>. <i>The Encyclopedia of Astrobiology, Astronomy, and Spaceflight</i><span class="reference-accessdate">. Retrieved <span class="nowrap">June 22,</span> 2006</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Mira+%28Omicron+Ceti%29&rft.btitle=The+Encyclopedia+of+Astrobiology%2C+Astronomy%2C+and+Spaceflight&rft_id=http%3A%2F%2Fwww.daviddarling.info%2Fencyclopedia%2FM%2FMira.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AMira" class="Z3988"></span></li> <li>Robert Burnham Jr., <i>Burnham's Celestial Handbook</i>, Vol. 1, (New York: Dover Publications, Inc., 1978), 634.</li> <li>James Kaler, <i>The Hundred Greatest Stars</i>, (New York: Copernicus Books, 2002), 121.</li></ul> <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=Mira&action=edit&section=11" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media 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srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/60px-Commons-logo.svg.png 1.5x" data-file-width="1024" data-file-height="1376" /></a></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <a href="https://commons.wikimedia.org/wiki/Mira_Ceti" class="extiw" title="commons:Mira Ceti"><span style="font-style:italic; font-weight:bold;">Mira Ceti</span></a>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="https://www.nasa.gov/mission_pages/galex/galex-20070815.html">Speeding Bullet Star Leaves Enormous Streak Across Sky</a> at <a href="/wiki/Caltech" class="mw-redirect" title="Caltech">Caltech</a></li> <li><a rel="nofollow" class="external text" href="http://news.bbc.co.uk/1/hi/sci/tech/6947607.stm">Mira has tail nearly 13 light years in length (BBC)</a></li> <li><a href="/wiki/Astronomy_Picture_of_the_Day" title="Astronomy Picture of the Day">Astronomy Picture of the Day</a>:<br /><a rel="nofollow" class="external text" href="https://antwrp.gsfc.nasa.gov/apod/ap981011.html">1998-10-11</a>, <a rel="nofollow" class="external text" href="https://antwrp.gsfc.nasa.gov/apod/ap010121.html">2001-01-21</a>, <a rel="nofollow" class="external text" href="https://antwrp.gsfc.nasa.gov/apod/ap060722.html">2006-07-22</a>, <a rel="nofollow" class="external text" href="https://antwrp.gsfc.nasa.gov/apod/ap070221.html">2007-02-21</a>, <a rel="nofollow" class="external text" href="https://antwrp.gsfc.nasa.gov/apod/ap070817.html">2007-08-17</a></li> <li><a rel="nofollow" class="external text" href="http://spider.seds.org/spider/Vars/mira.html">SEDS article</a></li> <li>A <a rel="nofollow" class="external text" href="http://www.bav-astro.de/sterne/cetmira.shtml">lightcurve</a> of Mira from the BAV.</li> <li>Universe Today, <a rel="nofollow" class="external text" href="http://www.universetoday.com/2007/08/15/thats-not-a-comet-thats-a-star/">That's Not a Comet, that's a Star</a></li> <li><a rel="nofollow" class="external text" href="https://www.aavso.org/vsots_mira">OMICRON CETI (Mira)</a></li> <li><a rel="nofollow" class="external text" href="https://www.aavso.org/vsots_mira2">Winter 2006: Mira revisited</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist 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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 class="mw-selflink selflink">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 href="/wiki/YZ_Ceti" title="YZ Ceti">YZ</a></li> <li><a href="/wiki/Ross_548" title="Ross 548">ZZ</a></li> <li><a href="/wiki/AY_Ceti" class="mw-redirect" 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%E2%88%9207_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/DR1_(star)" title="DR1 (star)">DR1</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="Exoplanets14" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Exoplanet" title="Exoplanet">Exoplanets</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/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="Nebulae11" 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="/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_578" title="NGC 578">578</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_1153" title="NGC 1153">1153</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_clusters19" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Galaxy_cluster" title="Galaxy cluster">Galaxy clusters</a></th><td class="navbox-list-with-group navbox-list navbox-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_events52" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Transient_astronomical_event" class="mw-redirect" title="Transient astronomical event">Astronomical events</a></th><td class="navbox-list-with-group navbox-list navbox-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> <style data-mw-deduplicate="TemplateStyles:r1130092004">.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;justify-content:center;align-items:baseline}.mw-parser-output .portal-bar-bordered{padding:0 2em;background-color:#fdfdfd;border:1px solid #a2a9b1;clear:both;margin:1em auto 0}.mw-parser-output .portal-bar-related{font-size:100%;justify-content:flex-start}.mw-parser-output .portal-bar-unbordered{padding:0 1.7em;margin-left:0}.mw-parser-output .portal-bar-header{margin:0 1em 0 0.5em;flex:0 0 auto;min-height:24px}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;flex:0 1 auto;padding:0.15em 0;column-gap:1em;align-items:baseline;margin:0;list-style:none}.mw-parser-output .portal-bar-content-related{margin:0;list-style:none}.mw-parser-output .portal-bar-item{display:inline-block;margin:0.15em 0.2em;min-height:24px;line-height:24px}@media screen and (max-width:768px){.mw-parser-output .portal-bar{font-size:88%;font-weight:bold;display:flex;flex-flow:column wrap;align-items:baseline}.mw-parser-output .portal-bar-header{text-align:center;flex:0;padding-left:0.5em;margin:0 auto}.mw-parser-output .portal-bar-related{font-size:100%;align-items:flex-start}.mw-parser-output .portal-bar-content{display:flex;flex-flow:row wrap;align-items:center;flex:0;column-gap:1em;border-top:1px solid #a2a9b1;margin:0 auto;list-style:none}.mw-parser-output .portal-bar-content-related{border-top:none;margin:0;list-style:none}}.mw-parser-output .navbox+link+.portal-bar,.mw-parser-output .navbox+style+.portal-bar,.mw-parser-output .navbox+link+.portal-bar-bordered,.mw-parser-output .navbox+style+.portal-bar-bordered,.mw-parser-output .sister-bar+link+.portal-bar,.mw-parser-output .sister-bar+style+.portal-bar,.mw-parser-output .portal-bar+.navbox-styles+.navbox,.mw-parser-output .portal-bar+.navbox-styles+.sister-bar{margin-top:-1px}</style><div class="portal-bar noprint metadata noviewer portal-bar-bordered" role="navigation" aria-label="Portals"><span class="portal-bar-header"><a href="/wiki/Wikipedia:Contents/Portals" title="Wikipedia:Contents/Portals">Portals</a>:</span><ul class="portal-bar-content"><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/20px-Crab_Nebula.jpg" decoding="async" width="19" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Crab_Nebula.jpg/40px-Crab_Nebula.jpg 1.5x" data-file-width="3864" data-file-height="3864" /></span></span> </span><a href="/wiki/Portal:Astronomy" title="Portal:Astronomy">Astronomy</a></li><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><a href="/wiki/File:He1523a.jpg" class="mw-file-description"><img alt="icon" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/He1523a.jpg/20px-He1523a.jpg" decoding="async" width="16" height="19" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/He1523a.jpg/40px-He1523a.jpg 1.5x" data-file-width="180" data-file-height="207" /></a></span> </span><a href="/wiki/Portal:Stars" title="Portal:Stars">Stars</a></li><li class="portal-bar-item"><span class="nowrap"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/21px-Earth-moon.jpg" decoding="async" width="21" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/32px-Earth-moon.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/42px-Earth-moon.jpg 2x" data-file-width="3000" data-file-height="2400" /></span></span> </span><a href="/wiki/Portal:Outer_space" title="Portal:Outer space">Outer space</a></li></ul></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" 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