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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="Innhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <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="Vis/skjul innholdsfortegnelsen" > <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">Vis/skjul innholdsfortegnelsen</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">Irregulær måne</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="Gå til en artikkel på et annet språk. Tilgjengelig på 28 språk" > <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-28" 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">28 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%82%D9%85%D8%B1_%D8%BA%D9%8A%D8%B1_%D9%86%D8%B8%D8%A7%D9%85%D9%8A" title="قمر غير نظامي – arabisk" lang="ar" hreflang="ar" data-title="قمر غير نظامي" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9D%D0%B5%D1%80%D1%8D%D0%B3%D1%83%D0%BB%D1%8F%D1%80%D0%BD%D1%8B_%D1%81%D0%BF%D0%B0%D0%B4%D0%B0%D1%80%D0%BE%D0%B6%D0%BD%D1%96%D0%BA" title="Нерэгулярны спадарожнік – belarusisk" lang="be" hreflang="be" data-title="Нерэгулярны спадарожнік" data-language-autonym="Беларуская" data-language-local-name="belarusisk" 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%9D%D0%B5%D1%80%D0%B5%D0%B3%D1%83%D0%BB%D1%8F%D1%80%D0%B5%D0%BD_%D1%81%D0%BF%D1%8A%D1%82%D0%BD%D0%B8%D0%BA" title="Нерегулярен спътник – bulgarsk" lang="bg" hreflang="bg" data-title="Нерегулярен спътник" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Sat%C3%A8l%C2%B7lit_irregular" title="Satèl·lit irregular – katalansk" lang="ca" hreflang="ca" data-title="Satèl·lit irregular" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Irregul%C3%A4rer_Satellit" title="Irregulärer Satellit – tysk" lang="de" hreflang="de" data-title="Irregulärer Satellit" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Irregular_moon" title="Irregular moon – engelsk" lang="en" hreflang="en" data-title="Irregular moon" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Sat%C3%A9lite_irregular" title="Satélite irregular – spansk" lang="es" hreflang="es" data-title="Satélite irregular" data-language-autonym="Español" data-language-local-name="spansk" 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/Neregula_satelito" title="Neregula satelito – esperanto" lang="eo" hreflang="eo" data-title="Neregula satelito" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%82%D9%85%D8%B1_%D9%86%D8%A7%D9%85%D9%86%D8%B8%D9%85" title="قمر نامنظم – persisk" lang="fa" hreflang="fa" data-title="قمر نامنظم" data-language-autonym="فارسی" data-language-local-name="persisk" 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/Satellite_irr%C3%A9gulier" title="Satellite irrégulier – fransk" lang="fr" hreflang="fr" data-title="Satellite irrégulier" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B6%88%EA%B7%9C%EC%B9%99_%EC%9C%84%EC%84%B1" title="불규칙 위성 – koreansk" lang="ko" hreflang="ko" data-title="불규칙 위성" data-language-autonym="한국어" data-language-local-name="koreansk" 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/%D4%B1%D5%B6%D5%AF%D5%A1%D5%B6%D5%B8%D5%B6_%D5%A1%D6%80%D5%A2%D5%A1%D5%B6%D5%B5%D5%A1%D5%AF" title="Անկանոն արբանյակ – armensk" lang="hy" hreflang="hy" data-title="Անկանոն արբանյակ" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Satelit_ireguler" title="Satelit ireguler – indonesisk" lang="id" hreflang="id" data-title="Satelit ireguler" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" 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/Satellite_irregolare" title="Satellite irregolare – italiensk" lang="it" hreflang="it" data-title="Satellite irregolare" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%90%E1%83%A0%E1%83%90%E1%83%A0%E1%83%94%E1%83%92%E1%83%A3%E1%83%9A%E1%83%90%E1%83%A0%E1%83%A3%E1%83%9A%E1%83%98_%E1%83%97%E1%83%90%E1%83%9C%E1%83%90%E1%83%9B%E1%83%92%E1%83%96%E1%83%90%E1%83%95%E1%83%A0%E1%83%98" title="არარეგულარული თანამგზავრი – georgisk" lang="ka" hreflang="ka" data-title="არარეგულარული თანამგზავრი" data-language-autonym="ქართული" data-language-local-name="georgisk" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Onreegelm%C3%A9issege_Satellit" title="Onreegelméissege Satellit – luxemburgsk" lang="lb" hreflang="lb" data-title="Onreegelméissege Satellit" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxemburgsk" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9D%D0%B5%D0%BF%D1%80%D0%B0%D0%B2%D0%B8%D0%BB%D0%BD%D0%B0_%D0%BC%D0%B5%D1%81%D0%B5%D1%87%D0%B8%D0%BD%D0%B0" title="Неправилна месечина – makedonsk" lang="mk" hreflang="mk" data-title="Неправилна месечина" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Bulan_tak_nalar" title="Bulan tak nalar – malayisk" lang="ms" hreflang="ms" data-title="Bulan tak nalar" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%95%E1%80%AF%E1%80%B6%E1%80%99%E1%80%BE%E1%80%94%E1%80%BA%E1%80%99%E1%80%9F%E1%80%AF%E1%80%90%E1%80%BA%E1%80%9E%E1%80%B1%E1%80%AC_%E1%80%82%E1%80%BC%E1%80%AD%E1%80%AF%E1%80%9F%E1%80%BA%E1%80%9B%E1%80%B6%E1%80%9C" title="ပုံမှန်မဟုတ်သော ဂြိုဟ်ရံလ – burmesisk" lang="my" hreflang="my" data-title="ပုံမှန်မဟုတ်သော ဂြိုဟ်ရံလ" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burmesisk" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E4%B8%8D%E8%A6%8F%E5%89%87%E8%A1%9B%E6%98%9F" title="不規則衛星 – japansk" lang="ja" hreflang="ja" data-title="不規則衛星" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Ksi%C4%99%C5%BCyce_nieregularne" title="Księżyce nieregularne – polsk" lang="pl" hreflang="pl" data-title="Księżyce nieregularne" data-language-autonym="Polski" data-language-local-name="polsk" 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/Sat%C3%A9lite_irregular" title="Satélite irregular – portugisisk" lang="pt" hreflang="pt" data-title="Satélite irregular" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9D%D0%B5%D1%80%D0%B5%D0%B3%D1%83%D0%BB%D1%8F%D1%80%D0%BD%D1%8B%D0%B9_%D1%81%D0%BF%D1%83%D1%82%D0%BD%D0%B8%D0%BA" title="Нерегулярный спутник – russisk" lang="ru" hreflang="ru" data-title="Нерегулярный спутник" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Nepravilni_satelit" title="Nepravilni satelit – slovensk" lang="sl" hreflang="sl" data-title="Nepravilni satelit" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/D%C3%BCzensiz_uydu" title="Düzensiz uydu – tyrkisk" lang="tr" hreflang="tr" data-title="Düzensiz uydu" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" 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%9D%D0%B5%D1%80%D0%B5%D0%B3%D1%83%D0%BB%D1%8F%D1%80%D0%BD%D0%B8%D0%B9_%D1%81%D1%83%D0%BF%D1%83%D1%82%D0%BD%D0%B8%D0%BA" title="Нерегулярний супутник – ukrainsk" lang="uk" hreflang="uk" data-title="Нерегулярний супутник" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/V%E1%BB%87_tinh_d%E1%BB%8B_h%C3%ACnh" title="Vệ tinh dị hình – vietnamesisk" lang="vi" hreflang="vi" data-title="Vệ tinh dị hình" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E4%B8%8D%E8%A6%8F%E5%89%87%E8%A1%9B%E6%98%9F" title="不規則衛星 – kinesisk" lang="zh" hreflang="zh" data-title="不規則衛星" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q1632885#sitelinks-wikipedia" title="Rediger lenker til artikkelen på andre språk" class="wbc-editpage">Rediger lenker</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Irregul%C3%A6r_m%C3%A5ne" title="Vis innholdssiden [c]" accesskey="c"><span>Artikkel</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Diskusjon:Irregul%C3%A6r_m%C3%A5ne" rel="discussion" title="Diskusjon om innholdssiden [t]" accesskey="t"><span>Diskusjon</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Bytt språkvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">norsk bokmål</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visninger"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Irregul%C3%A6r_m%C3%A5ne"><span>Les</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&action=history" title="Tidligere sideversjoner av denne siden [h]" accesskey="h"><span>Vis historikk</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Verktøy" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Verktøy</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Verktøy</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">skjul</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Flere alternativer" > <div class="vector-menu-heading"> Handlinger </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Irregul%C3%A6r_m%C3%A5ne"><span>Les</span></a></li><li id="ca-more-ve-edit" 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href="/wiki/Fil:Irregular_satellites_of_saturn.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Irregular_satellites_of_saturn.jpg/250px-Irregular_satellites_of_saturn.jpg" decoding="async" width="250" height="214" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Irregular_satellites_of_saturn.jpg/375px-Irregular_satellites_of_saturn.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Irregular_satellites_of_saturn.jpg/500px-Irregular_satellites_of_saturn.jpg 2x" data-file-width="843" data-file-height="720" /></a><figcaption>Dette bildet viser <a href="/wiki/Bane" title="Bane">banene</a> til <a href="/wiki/Saturn" title="Saturn">Saturns</a> irregulære måner som omgir planeten som en sverm. <a href="/wiki/Titan_(m%C3%A5ne)" title="Titan (måne)">Titans</a>, som er regulær, vises med rødt i midten for sammenligning.</figcaption></figure> <p>Innen <a href="/wiki/Astronomi" title="Astronomi">astronomien</a> er en <b>irregulær måne</b> en <a href="/wiki/Naturlig_satellitt" title="Naturlig satellitt">naturlig satellitt</a> som følger en fjern, <a href="/wiki/Inklinasjon" title="Inklinasjon">skråstilt</a>, og ofte <a href="/wiki/Eksentrisitet" title="Eksentrisitet">eksentrisk</a> og <a href="/wiki/Retrograd_bevegelse" class="mw-redirect" title="Retrograd bevegelse">retrograd</a> <a href="/wiki/Bane" title="Bane">bane</a>. De antas å ha blitt fanget av deres moderplanet, i motsetning til vanlige satellitter som dannes <i><a href="/wiki/In_situ" title="In situ">in situ</a></i>. </p><p>Siden 1997 har nittitre irregulære måner blitt oppdaget i bane rundt alle fire <a href="/wiki/Gasskjempe" title="Gasskjempe">gasskjempene</a> <a href="/wiki/Jupiter" title="Jupiter">Jupiter</a>, <a href="/wiki/Saturn" title="Saturn">Saturn</a>, <a href="/wiki/Uranus" title="Uranus">Uranus</a> og <a href="/wiki/Neptun_(planet)" title="Neptun (planet)">Neptun</a>. Før 1997 var kun ti irregulære måner kjent, deriblant <a href="/wiki/Phoebe_(m%C3%A5ne)" title="Phoebe (måne)">Phoebe</a>, den største irregulære månen til Saturn, og <a href="/wiki/Himalia_(m%C3%A5ne)" title="Himalia (måne)">Himalia</a>, den største irregulære månen til Jupiter. <a href="/wiki/Sycorax_(m%C3%A5ne)" title="Sycorax (måne)">Sycorax</a>, den største irregulære månen til Uranus ble oppdaget i 1997. Det antas at de irregulære månene ble fanget fra <a href="/wiki/Heliosentrisk_bane" title="Heliosentrisk bane">heliosentriske baner</a> nær deres nåværende posisjoner kort tid etter dannelsen av moderplaneten. En alternativ teori, at de stammer fra lengre ute i <a href="/wiki/Kuiperbeltet" title="Kuiperbeltet">Kuiperbeltet</a>, støttes ikke av nåværende observasjoner. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Definisjon">Definisjon</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&veaction=edit&section=1" title="Rediger avsnitt: Definisjon" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&action=edit&section=1" title="Rediger kildekoden til seksjonen Definisjon"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <table align="right" class="wikitable" style="margin-left: 1em; margin-right: 0;"> <tbody><tr> <th>Planet </th> <th>r<sub>H</sub> (<a href="/wiki/Gigameter" title="Gigameter">Gm</a>)<sup id="cite_ref-Sheppard2006_1-0" class="reference"><a href="#cite_note-Sheppard2006-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </th></tr> <tr> <td>Jupiter </td> <td>51 </td></tr> <tr> <td>Saturn </td> <td>69 </td></tr> <tr> <td>Uranus </td> <td>73 </td></tr> <tr> <td>Neptune </td> <td>116 </td></tr></tbody></table> <p>Der finnes ingen allmenn akseptert og presis definisjon for en irregulær måne. Uformelt vurderes månene som irregulære dersom de er langt nok unna planeten til at <a href="/wiki/Presesjon" title="Presesjon">presesjonen</a> til <a href="/wiki/Baneplan" title="Baneplan">baneplanet</a> primært kontrolleres av <a href="/wiki/Solen" title="Solen">solen</a>. </p><p>I praksis blir månens <a href="/wiki/Store_halvakse" title="Store halvakse">store halvakse</a> sammenlignet med planetens <a href="/wiki/Hill-sf%C3%A6re" title="Hill-sfære">Hill-sfære</a> (det vil si sfæren til dens gravitasjonelle påvirkning) <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r_{H}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>H</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r_{H}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f047471a1d1a6d3fe4f418d8c053998d3e154612" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.74ex; height:2.009ex;" alt="{\displaystyle r_{H}}"></span>. Irregulære måner har store halvakser større enn 0,05 <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r_{H}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>H</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r_{H}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f047471a1d1a6d3fe4f418d8c053998d3e154612" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.74ex; height:2.009ex;" alt="{\displaystyle r_{H}}"></span> med <a href="/wiki/Apoapsis" title="Apoapsis">apoapses</a> som strekker seg så langt som til 0,65 <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle r_{H}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>r</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>H</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle r_{H}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f047471a1d1a6d3fe4f418d8c053998d3e154612" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.74ex; height:2.009ex;" alt="{\displaystyle r_{H}}"></span>.<sup id="cite_ref-Sheppard2006_1-1" class="reference"><a href="#cite_note-Sheppard2006-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Radiusen til Hill-sfæren er gitt i tabellen ved siden av. </p> <div class="mw-heading mw-heading2"><h2 id="Utforskning">Utforskning</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&veaction=edit&section=2" title="Rediger avsnitt: Utforskning" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&action=edit&section=2" title="Rediger kildekoden til seksjonen Utforskning"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Til dags dato er <a href="/wiki/Phoebe_(m%C3%A5ne)" title="Phoebe (måne)">Phoebe</a>, <a href="/wiki/Saturn" title="Saturn">Saturns</a> største irregulære måne, den eneste irregulære månen som har blitt besøkt av en <a href="/wiki/Romsonde" title="Romsonde">romsonde</a>. Den ble besøkt i 2005 da den ble fotografert av <i><a href="/wiki/Cassini-Huygens" title="Cassini-Huygens">Cassini</a></i>. Romsonden tok også et fjernt bilde med lav oppløsning av <a href="/wiki/Jupiters_m%C3%A5ner" title="Jupiters måner">jupitermånen</a> <a href="/wiki/Himalia_(m%C3%A5ne)" title="Himalia (måne)">Himalia</a> i 2000. Det finnes ingen planer om å sende romsonder til noen irregulære måner i fremtiden. </p> <div class="mw-heading mw-heading2"><h2 id="Referanser">Referanser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&veaction=edit&section=3" title="Rediger avsnitt: Referanser" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&action=edit&section=3" title="Rediger kildekoden til seksjonen Referanser"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Sheppard2006-1"><b>^</b> <a href="#cite_ref-Sheppard2006_1-0"><sup>a</sup></a> <a href="#cite_ref-Sheppard2006_1-1"><sup>b</sup></a> <span class="reference-text"><a href="/wiki/Scott_S._Sheppard" title="Scott S. Sheppard">Scott S. Sheppard</a>, <i>Outer irregular satellites of the planets and their relationship with asteroids, comets and Kuiper Belt objects</i> Asteroids, Comets, Meteors, Proceedings of the 229th Symposium of the International Astronomical Union held in Rio de Janeiro, Brasil August 7–12, 2005, Cambridge University Press, 2006., pp. 319-334 (<a rel="nofollow" class="external text" href="http://arxiv.org/abs/astro-ph/0605041">preprint</a>)</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Eksterne_lenker">Eksterne lenker</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&veaction=edit&section=4" title="Rediger avsnitt: Eksterne lenker" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Irregul%C3%A6r_m%C3%A5ne&action=edit&section=4" title="Rediger kildekoden til seksjonen Eksterne lenker"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070624084542/http://www.ifa.hawaii.edu/~jewitt/irregulars.html">David Jewitts sider</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20130313184354/http://www.dtm.ciw.edu/users/sheppard/satellites/">Scott Sheppards side</a></li></ul> <div id="catlinks"><p id="portlinks" class="catlinks"><a href="/wiki/Wikipedia:Portaler" title="Wikipedia:Portaler">Portal</a>: <a href="/wiki/Portal:Astronomi" title="Portal:Astronomi">Astronomi</a></p></div> <div class="ve-conditional-display-block">Autoritetsdata</div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Hentet fra «<a dir="ltr" href="https://no.wikipedia.org/w/index.php?title=Irregulær_måne&oldid=21759303">https://no.wikipedia.org/w/index.php?title=Irregulær_måne&oldid=21759303</a>»</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Kategori:Kategorier" title="Kategori:Kategorier">Kategori</a>: <ul><li><a href="/wiki/Kategori:Irregul%C3%A6re_m%C3%A5ner" title="Kategori:Irregulære måner">Irregulære måner</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Skjulte kategorier: <ul><li><a href="/wiki/Kategori:Artikler_uten_autoritetsdatalenker_fra_Wikidata" title="Kategori:Artikler uten autoritetsdatalenker fra Wikidata">Artikler uten autoritetsdatalenker fra Wikidata</a></li><li><a href="/wiki/Kategori:Artikler_i_astronomiprosjektet" title="Kategori:Artikler i astronomiprosjektet">Artikler i astronomiprosjektet</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Denne siden ble sist redigert 30. aug. 2021 kl. 13:41.</li> <li id="footer-info-copyright">Innholdet er tilgjengelig under <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.no">Creative Commons-lisensen Navngivelse-DelPåSammeVilkår</a>, men ytterligere betingelser kan gjelde. 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