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data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indice</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Storia_del_termine" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Storia_del_termine"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Storia del termine</span> </div> </a> <ul id="toc-Storia_del_termine-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Prospetto" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Prospetto"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Prospetto</span> </div> </a> <ul id="toc-Prospetto-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Candidati_pianeti_nani" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Candidati_pianeti_nani"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Candidati pianeti nani</span> </div> </a> <ul id="toc-Candidati_pianeti_nani-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-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="Indice" 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="Mostra/Nascondi l'indice" > <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">Mostra/Nascondi l'indice</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">Pianeta nano</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="Vai a una voce in un'altra lingua. Disponibile in 124 lingue" > <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-124" 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">124 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://af.wikipedia.org/wiki/Dwergplaneet" title="Dwergplaneet - afrikaans" lang="af" hreflang="af" data-title="Dwergplaneet" 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/Zwergplanet" title="Zwergplanet - tedesco svizzero" lang="gsw" hreflang="gsw" data-title="Zwergplanet" data-language-autonym="Alemannisch" data-language-local-name="tedesco svizzero" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Planeta_nana" title="Planeta nana - aragonese" lang="an" hreflang="an" data-title="Planeta nana" data-language-autonym="Aragonés" data-language-local-name="aragonese" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%AC%E0%A5%8C%E0%A4%A8%E0%A4%BE_%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="बौना ग्रह - angika" lang="anp" hreflang="anp" data-title="बौना ग्रह" data-language-autonym="अंगिका" data-language-local-name="angika" class="interlanguage-link-target"><span>अंगिका</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%83%D9%88%D9%83%D8%A8_%D9%82%D8%B2%D9%85" title="كوكب قزم - arabo" lang="ar" hreflang="ar" data-title="كوكب قزم" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D9%83%D9%88%D9%83%D8%A8_%D9%82%D8%B2%D9%85" title="كوكب قزم - arabo egiziano" lang="arz" hreflang="arz" data-title="كوكب قزم" data-language-autonym="مصرى" data-language-local-name="arabo egiziano" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-as mw-list-item"><a href="https://as.wikipedia.org/wiki/%E0%A6%AC%E0%A6%BE%E0%A6%93%E0%A6%A8%E0%A6%BE_%E0%A6%97%E0%A7%8D%E0%A7%B0%E0%A6%B9" title="বাওনা গ্ৰহ - assamese" lang="as" hreflang="as" data-title="বাওনা গ্ৰহ" data-language-autonym="অসমীয়া" data-language-local-name="assamese" class="interlanguage-link-target"><span>অসমীয়া</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Planeta_nanu" title="Planeta nanu - asturiano" lang="ast" hreflang="ast" data-title="Planeta nanu" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-awa mw-list-item"><a href="https://awa.wikipedia.org/wiki/%E0%A4%AC%E0%A5%8C%E0%A4%A8%E0%A4%BE_%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="बौना ग्रह - awadhi" lang="awa" hreflang="awa" data-title="बौना ग्रह" data-language-autonym="अवधी" data-language-local-name="awadhi" class="interlanguage-link-target"><span>अवधी</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Zweagplanet" title="Zweagplanet - bavarese" lang="bar" hreflang="bar" data-title="Zweagplanet" data-language-autonym="Boarisch" data-language-local-name="bavarese" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D0%BB%D1%96%D0%BA%D0%B0%D0%B2%D0%B0%D1%8F_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Карлікавая планета - bielorusso" lang="be" hreflang="be" data-title="Карлікавая планета" data-language-autonym="Беларуская" data-language-local-name="bielorusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D0%BB%D1%96%D0%BA%D0%B0%D0%B2%D0%B0%D1%8F_%D0%BF%D0%BB%D1%8F%D0%BD%D1%8D%D1%82%D0%B0" title="Карлікавая плянэта - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Карлікавая плянэта" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9F%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0_%D0%B4%D0%B6%D1%83%D0%B4%D0%B6%D0%B5" title="Планета джудже - bulgaro" lang="bg" hreflang="bg" data-title="Планета джудже" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%AC%E0%A5%8C%E0%A4%A8%E0%A4%BE_%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="बौना ग्रह - Bhojpuri" lang="bh" hreflang="bh" data-title="बौना ग्रह" data-language-autonym="भोजपुरी" data-language-local-name="Bhojpuri" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bjn mw-list-item"><a href="https://bjn.wikipedia.org/wiki/Palanit_kihit" title="Palanit kihit - banjar" lang="bjn" hreflang="bjn" data-title="Palanit kihit" data-language-autonym="Banjar" data-language-local-name="banjar" class="interlanguage-link-target"><span>Banjar</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AC%E0%A6%BE%E0%A6%AE%E0%A6%A8_%E0%A6%97%E0%A7%8D%E0%A6%B0%E0%A6%B9" title="বামন গ্রহ - bengalese" lang="bn" hreflang="bn" data-title="বামন গ্রহ" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Korrblanedenn" title="Korrblanedenn - bretone" lang="br" hreflang="br" data-title="Korrblanedenn" data-language-autonym="Brezhoneg" data-language-local-name="bretone" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Patuljasta_planeta" title="Patuljasta planeta - bosniaco" lang="bs" hreflang="bs" data-title="Patuljasta planeta" data-language-autonym="Bosanski" data-language-local-name="bosniaco" 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/Planeta_nan" title="Planeta nan - catalano" lang="ca" hreflang="ca" data-title="Planeta nan" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DA%BE%DB%95%D8%B3%D8%A7%D8%B1%DB%95%DB%8C_%D8%B4%DB%95%D9%85%D9%88%D9%88%D9%84%DB%95" title="ھەسارەی شەموولە - curdo centrale" lang="ckb" hreflang="ckb" data-title="ھەسارەی شەموولە" data-language-autonym="کوردی" data-language-local-name="curdo centrale" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Trpasli%C4%8D%C3%AD_planeta" title="Trpasličí planeta - ceco" lang="cs" hreflang="cs" data-title="Trpasličí planeta" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D0%BB%D0%B8%D0%BA%D0%BB%D0%B0_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Карликла планета - ciuvascio" lang="cv" hreflang="cv" data-title="Карликла планета" data-language-autonym="Чӑвашла" data-language-local-name="ciuvascio" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Planed_gorrach" title="Planed gorrach - gallese" lang="cy" hreflang="cy" data-title="Planed gorrach" data-language-autonym="Cymraeg" data-language-local-name="gallese" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Dv%C3%A6rgplanet" title="Dværgplanet - danese" lang="da" hreflang="da" data-title="Dværgplanet" data-language-autonym="Dansk" data-language-local-name="danese" 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/Zwergplanet" title="Zwergplanet - tedesco" lang="de" hreflang="de" data-title="Zwergplanet" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A0%CE%BB%CE%B1%CE%BD%CE%AE%CF%84%CE%B7%CF%82_%CE%BD%CE%AC%CE%BD%CE%BF%CF%82" title="Πλανήτης νάνος - greco" lang="el" hreflang="el" data-title="Πλανήτης νάνος" data-language-autonym="Ελληνικά" data-language-local-name="greco" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://en.wikipedia.org/wiki/Dwarf_planet" title="Dwarf planet - inglese" lang="en" hreflang="en" data-title="Dwarf planet" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Nanplanedo" title="Nanplanedo - esperanto" lang="eo" hreflang="eo" data-title="Nanplanedo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Planeta_enano" title="Planeta enano - spagnolo" lang="es" hreflang="es" data-title="Planeta enano" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/K%C3%A4%C3%A4busplaneet" title="Kääbusplaneet - estone" lang="et" hreflang="et" data-title="Kääbusplaneet" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Planeta_nano" title="Planeta nano - basco" lang="eu" hreflang="eu" data-title="Planeta nano" data-language-autonym="Euskara" data-language-local-name="basco" 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%B3%DB%8C%D8%A7%D8%B1%D9%87_%DA%A9%D9%88%D8%AA%D9%88%D9%84%D9%87" title="سیاره کوتوله - persiano" lang="fa" hreflang="fa" data-title="سیاره کوتوله" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/K%C3%A4%C3%A4pi%C3%B6planeetta" title="Kääpiöplaneetta - finlandese" lang="fi" hreflang="fi" data-title="Kääpiöplaneetta" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fiu-vro mw-list-item"><a href="https://fiu-vro.wikipedia.org/wiki/K%C3%A4%C3%A4b%C3%A4tshod%27ot%C3%A4ht" title="Kääbätshod'otäht - võro" lang="vro" hreflang="vro" data-title="Kääbätshod'otäht" data-language-autonym="Võro" data-language-local-name="võro" class="interlanguage-link-target"><span>Võro</span></a></li><li class="interlanguage-link interwiki-fr badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://fr.wikipedia.org/wiki/Plan%C3%A8te_naine" title="Planète naine - francese" lang="fr" hreflang="fr" data-title="Planète naine" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Sweragplaneet" title="Sweragplaneet - frisone settentrionale" lang="frr" hreflang="frr" data-title="Sweragplaneet" data-language-autonym="Nordfriisk" data-language-local-name="frisone settentrionale" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Dwerchplaneet" title="Dwerchplaneet - frisone occidentale" lang="fy" hreflang="fy" data-title="Dwerchplaneet" data-language-autonym="Frysk" data-language-local-name="frisone occidentale" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Abhacphl%C3%A1in%C3%A9ad" title="Abhacphláinéad - irlandese" lang="ga" hreflang="ga" data-title="Abhacphláinéad" data-language-autonym="Gaeilge" data-language-local-name="irlandese" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Planeta_anano" title="Planeta anano - galiziano" lang="gl" hreflang="gl" data-title="Planeta anano" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-gn mw-list-item"><a href="https://gn.wikipedia.org/wiki/Yv%C3%B3ra_mich%C4%A9" title="Yvóra michĩ - guaraní" lang="gn" hreflang="gn" data-title="Yvóra michĩ" data-language-autonym="Avañe'ẽ" data-language-local-name="guaraní" class="interlanguage-link-target"><span>Avañe'ẽ</span></a></li><li class="interlanguage-link interwiki-gv mw-list-item"><a href="https://gv.wikipedia.org/wiki/Planaid_crivassanagh" title="Planaid crivassanagh - mannese" lang="gv" hreflang="gv" data-title="Planaid crivassanagh" data-language-autonym="Gaelg" data-language-local-name="mannese" class="interlanguage-link-target"><span>Gaelg</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9B%D7%95%D7%9B%D7%91_%D7%9C%D7%9B%D7%AA_%D7%A0%D7%A0%D7%A1%D7%99" title="כוכב לכת ננסי - ebraico" lang="he" hreflang="he" data-title="כוכב לכת ננסי" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AC%E0%A5%8C%E0%A4%A8%E0%A4%BE_%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="बौना ग्रह - hindi" lang="hi" hreflang="hi" data-title="बौना ग्रह" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Dwarf_planet" title="Dwarf planet - hindi figiano" lang="hif" hreflang="hif" data-title="Dwarf planet" data-language-autonym="Fiji Hindi" data-language-local-name="hindi figiano" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Patuljasti_planet" title="Patuljasti planet - croato" lang="hr" hreflang="hr" data-title="Patuljasti planet" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/T%C3%B6rpebolyg%C3%B3" title="Törpebolygó - ungherese" lang="hu" hreflang="hu" data-title="Törpebolygó" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B3%D5%A1%D5%B3%D5%A1%D5%B3_%D5%B4%D5%B8%D5%AC%D5%B8%D6%80%D5%A1%D5%AF" title="Գաճաճ մոլորակ - armeno" lang="hy" hreflang="hy" data-title="Գաճաճ մոլորակ" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Planeta_nano" title="Planeta nano - interlingua" lang="ia" hreflang="ia" data-title="Planeta nano" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Planet_katai" title="Planet katai - indonesiano" lang="id" hreflang="id" data-title="Planet katai" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ig mw-list-item"><a href="https://ig.wikipedia.org/wiki/Obere_mbara_ala" title="Obere mbara ala - igbo" lang="ig" hreflang="ig" data-title="Obere mbara ala" data-language-autonym="Igbo" data-language-local-name="igbo" class="interlanguage-link-target"><span>Igbo</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Dvergreikistjarna" title="Dvergreikistjarna - islandese" lang="is" hreflang="is" data-title="Dvergreikistjarna" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E6%BA%96%E6%83%91%E6%98%9F" title="準惑星 - giapponese" lang="ja" hreflang="ja" data-title="準惑星" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-jbo mw-list-item"><a href="https://jbo.wikipedia.org/wiki/cmaplini" title="cmaplini - lojban" lang="jbo" hreflang="jbo" data-title="cmaplini" data-language-autonym="La .lojban." data-language-local-name="lojban" class="interlanguage-link-target"><span>La .lojban.</span></a></li><li class="interlanguage-link interwiki-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Planit_cilik" title="Planit cilik - giavanese" lang="jv" hreflang="jv" data-title="Planit cilik" data-language-autonym="Jawa" data-language-local-name="giavanese" class="interlanguage-link-target"><span>Jawa</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%AF%E1%83%A3%E1%83%AF%E1%83%90_%E1%83%9E%E1%83%9A%E1%83%90%E1%83%9C%E1%83%94%E1%83%A2%E1%83%90" title="ჯუჯა პლანეტა - georgiano" lang="ka" hreflang="ka" data-title="ჯუჯა პლანეტა" data-language-autonym="ქართული" data-language-local-name="georgiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Amtiweg_agezlan" title="Amtiweg agezlan - cabilo" lang="kab" hreflang="kab" data-title="Amtiweg agezlan" data-language-autonym="Taqbaylit" data-language-local-name="cabilo" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-kcg mw-list-item"><a href="https://kcg.wikipedia.org/wiki/A%CC%B1bapi%CC%B1lanet" title="A̱bapi̱lanet - tyap" lang="kcg" hreflang="kcg" data-title="A̱bapi̱lanet" data-language-autonym="Tyap" data-language-local-name="tyap" class="interlanguage-link-target"><span>Tyap</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%95%D1%80%D0%B3%D0%B5%D0%B6%D0%B5%D0%B9%D0%BB%D1%96_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0%D0%BB%D0%B0%D1%80" title="Ергежейлі планеталар - kazako" lang="kk" hreflang="kk" data-title="Ергежейлі планеталар" data-language-autonym="Қазақша" data-language-local-name="kazako" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%99%9C%ED%96%89%EC%84%B1" title="왜행성 - coreano" lang="ko" hreflang="ko" data-title="왜행성" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ksh mw-list-item"><a href="https://ksh.wikipedia.org/wiki/Zwerchplaneet" title="Zwerchplaneet - coloniese" lang="ksh" hreflang="ksh" data-title="Zwerchplaneet" data-language-autonym="Ripoarisch" data-language-local-name="coloniese" class="interlanguage-link-target"><span>Ripoarisch</span></a></li><li class="interlanguage-link interwiki-kw mw-list-item"><a href="https://kw.wikipedia.org/wiki/Planet_korr" title="Planet korr - cornico" lang="kw" hreflang="kw" data-title="Planet korr" data-language-autonym="Kernowek" data-language-local-name="cornico" class="interlanguage-link-target"><span>Kernowek</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Planetulus" title="Planetulus - latino" lang="la" hreflang="la" data-title="Planetulus" data-language-autonym="Latina" data-language-local-name="latino" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Zwergplan%C3%A9it" title="Zwergplanéit - lussemburghese" lang="lb" hreflang="lb" data-title="Zwergplanéit" data-language-autonym="Lëtzebuergesch" data-language-local-name="lussemburghese" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lfn mw-list-item"><a href="https://lfn.wikipedia.org/wiki/Planeta_nana" title="Planeta nana - Lingua Franca Nova" lang="lfn" hreflang="lfn" data-title="Planeta nana" data-language-autonym="Lingua Franca Nova" data-language-local-name="Lingua Franca Nova" class="interlanguage-link-target"><span>Lingua Franca Nova</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Dwergplaneet" title="Dwergplaneet - limburghese" lang="li" hreflang="li" data-title="Dwergplaneet" data-language-autonym="Limburgs" data-language-local-name="limburghese" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Pianeta_nano" title="Pianeta nano - lombardo" lang="lmo" hreflang="lmo" data-title="Pianeta nano" data-language-autonym="Lombard" data-language-local-name="lombardo" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Nyk%C5%A1tukin%C4%97_planeta" title="Nykštukinė planeta - lituano" lang="lt" hreflang="lt" data-title="Nykštukinė planeta" data-language-autonym="Lietuvių" data-language-local-name="lituano" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Pundurplan%C4%93ta" title="Pundurplanēta - lettone" lang="lv" hreflang="lv" data-title="Pundurplanēta" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-map-bms mw-list-item"><a href="https://map-bms.wikipedia.org/wiki/Planet_cilik" title="Planet cilik - Banyumasan" lang="jv-x-bms" hreflang="jv-x-bms" data-title="Planet cilik" data-language-autonym="Basa Banyumasan" data-language-local-name="Banyumasan" class="interlanguage-link-target"><span>Basa Banyumasan</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%8F%D1%83%D1%9F%D0%B5%D1%81%D1%82%D0%B0_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Џуџеста планета - macedone" lang="mk" hreflang="mk" data-title="Џуџеста планета" data-language-autonym="Македонски" data-language-local-name="macedone" 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%95%E0%B5%81%E0%B4%B3%E0%B5%8D%E0%B4%B3%E0%B5%BB%E0%B4%97%E0%B5%8D%E0%B4%B0%E0%B4%B9%E0%B4%82" title="കുള്ളൻഗ്രഹം - malayalam" lang="ml" hreflang="ml" data-title="കുള്ളൻഗ്രഹം" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%9E%D0%B4%D0%BE%D0%B9_%D0%B3%D0%B0%D1%80%D0%B0%D0%B3" title="Одой гараг - mongolo" lang="mn" hreflang="mn" data-title="Одой гараг" data-language-autonym="Монгол" data-language-local-name="mongolo" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%AC%E0%A4%9F%E0%A5%81%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="बटुग्रह - marathi" lang="mr" hreflang="mr" data-title="बटुग्रह" data-language-autonym="मराठी" data-language-local-name="marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Planet_kerdil" title="Planet kerdil - malese" lang="ms" hreflang="ms" data-title="Planet kerdil" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mwl mw-list-item"><a href="https://mwl.wikipedia.org/wiki/Planeta_nano" title="Planeta nano - mirandese" lang="mwl" hreflang="mwl" data-title="Planeta nano" data-language-autonym="Mirandés" data-language-local-name="mirandese" class="interlanguage-link-target"><span>Mirandés</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%82%E1%80%BC%E1%80%AD%E1%80%AF%E1%80%9F%E1%80%BA%E1%80%9E%E1%80%AD%E1%80%99%E1%80%BA%E1%80%82%E1%80%BC%E1%80%AD%E1%80%AF%E1%80%9F%E1%80%BA%E1%80%99%E1%80%BD%E1%80%BE%E1%80%AC%E1%80%B8" title="ဂြိုဟ်သိမ်ဂြိုဟ်မွှား - birmano" lang="my" hreflang="my" data-title="ဂြိုဟ်သိမ်ဂြိုဟ်မွှား" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmano" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nap mw-list-item"><a href="https://nap.wikipedia.org/wiki/Chianeta_nano" title="Chianeta nano - napoletano" lang="nap" hreflang="nap" data-title="Chianeta nano" data-language-autonym="Napulitano" data-language-local-name="napoletano" class="interlanguage-link-target"><span>Napulitano</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Dwargplanet" title="Dwargplanet - basso tedesco" lang="nds" hreflang="nds" data-title="Dwargplanet" data-language-autonym="Plattdüütsch" data-language-local-name="basso tedesco" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Dwergplaneet" title="Dwergplaneet - olandese" lang="nl" hreflang="nl" data-title="Dwergplaneet" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Dvergplanet" title="Dvergplanet - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Dvergplanet" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Dvergplanet" title="Dvergplanet - norvegese bokmål" lang="nb" hreflang="nb" data-title="Dvergplanet" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nrm mw-list-item"><a href="https://nrm.wikipedia.org/wiki/Ragot_d%27plian%C3%A8te" title="Ragot d'plianète - Norman" lang="nrf" hreflang="nrf" data-title="Ragot d'plianète" data-language-autonym="Nouormand" data-language-local-name="Norman" class="interlanguage-link-target"><span>Nouormand</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Planeta_nana" title="Planeta nana - occitano" lang="oc" hreflang="oc" data-title="Planeta nana" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Lafjoo_cuggee" title="Lafjoo cuggee - oromo" lang="om" hreflang="om" data-title="Lafjoo cuggee" data-language-autonym="Oromoo" data-language-local-name="oromo" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Planeta_kar%C5%82owata" title="Planeta karłowata - polacco" lang="pl" hreflang="pl" data-title="Planeta karłowata" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Pianeta_nan" title="Pianeta nan - piemontese" lang="pms" hreflang="pms" data-title="Pianeta nan" data-language-autonym="Piemontèis" data-language-local-name="piemontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A8%D9%88%D9%86%D8%A7_%D8%B3%DB%8C%D8%A7%D8%B1%D8%A7" title="بونا سیارا - Western Punjabi" lang="pnb" hreflang="pnb" data-title="بونا سیارا" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%B3%DB%8C%D8%A7%D8%B1%D9%87%E2%80%8C%DA%AB%DB%8D" title="سیاره‌ګۍ - pashto" lang="ps" hreflang="ps" data-title="سیاره‌ګۍ" data-language-autonym="پښتو" data-language-local-name="pashto" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Planeta_an%C3%A3o" title="Planeta anão - portoghese" lang="pt" hreflang="pt" data-title="Planeta anão" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Sit%27i_pachahina" title="Sit'i pachahina - quechua" lang="qu" hreflang="qu" data-title="Sit'i pachahina" data-language-autonym="Runa Simi" data-language-local-name="quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Planet%C4%83_pitic%C4%83" title="Planetă pitică - rumeno" lang="ro" hreflang="ro" data-title="Planetă pitică" data-language-autonym="Română" data-language-local-name="rumeno" 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%9A%D0%B0%D1%80%D0%BB%D0%B8%D0%BA%D0%BE%D0%B2%D0%B0%D1%8F_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Карликовая планета - russo" lang="ru" hreflang="ru" data-title="Карликовая планета" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Pianeta_nanu" title="Pianeta nanu - siciliano" lang="scn" hreflang="scn" data-title="Pianeta nanu" data-language-autonym="Sicilianu" data-language-local-name="siciliano" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Patuljasta_planeta" title="Patuljasta planeta - serbo-croato" lang="sh" hreflang="sh" data-title="Patuljasta planeta" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croato" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B7%80%E0%B7%8F%E0%B6%B8%E0%B6%B1_%E0%B6%9C%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%84%E0%B6%BD%E0%B7%9D%E0%B6%9A" title="වාමන ග්‍රහලෝක - singalese" lang="si" hreflang="si" data-title="වාමන ග්‍රහලෝක" data-language-autonym="සිංහල" data-language-local-name="singalese" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Dwarf_planet" title="Dwarf planet - Simple English" lang="en-simple" hreflang="en-simple" data-title="Dwarf planet" 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/Trpasli%C4%8Dia_plan%C3%A9ta" title="Trpasličia planéta - slovacco" lang="sk" hreflang="sk" data-title="Trpasličia planéta" data-language-autonym="Slovenčina" data-language-local-name="slovacco" 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/Pritlikavi_planet" title="Pritlikavi planet - sloveno" lang="sl" hreflang="sl" data-title="Pritlikavi planet" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Planeti_xhuxh" title="Planeti xhuxh - albanese" lang="sq" hreflang="sq" data-title="Planeti xhuxh" data-language-autonym="Shqip" data-language-local-name="albanese" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9F%D0%B0%D1%82%D1%83%D1%99%D0%B0%D1%81%D1%82%D0%B0_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Патуљаста планета - serbo" lang="sr" hreflang="sr" data-title="Патуљаста планета" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Plan%C3%A9t_kat%C3%A9" title="Planét katé - sundanese" lang="su" hreflang="su" data-title="Planét katé" data-language-autonym="Sunda" data-language-local-name="sundanese" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv badge-Q17437796 badge-featuredarticle mw-list-item" title="voce in vetrina"><a href="https://sv.wikipedia.org/wiki/Dv%C3%A4rgplanet" title="Dvärgplanet - svedese" lang="sv" hreflang="sv" data-title="Dvärgplanet" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Sayari_kibete" title="Sayari kibete - swahili" lang="sw" hreflang="sw" data-title="Sayari kibete" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AF%81%E0%AE%B1%E0%AF%81%E0%AE%99%E0%AF%8D%E0%AE%95%E0%AF%8B%E0%AE%B3%E0%AF%8D" title="குறுங்கோள் - tamil" lang="ta" hreflang="ta" data-title="குறுங்கோள்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AE%E0%B0%B0%E0%B1%81%E0%B0%97%E0%B1%81%E0%B0%9C%E0%B1%8D%E0%B0%9C%E0%B1%81_%E0%B0%97%E0%B1%8D%E0%B0%B0%E0%B0%B9%E0%B0%82" title="మరుగుజ్జు గ్రహం - telugu" lang="te" hreflang="te" data-title="మరుగుజ్జు గ్రహం" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</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%80%E0%B8%84%E0%B8%A3%E0%B8%B2%E0%B8%B0%E0%B8%AB%E0%B9%8C%E0%B9%81%E0%B8%84%E0%B8%A3%E0%B8%B0" title="ดาวเคราะห์แคระ - thailandese" lang="th" hreflang="th" data-title="ดาวเคราะห์แคระ" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tk mw-list-item"><a href="https://tk.wikipedia.org/wiki/Ki%C3%A7i_planeta" title="Kiçi planeta - turcomanno" lang="tk" hreflang="tk" data-title="Kiçi planeta" data-language-autonym="Türkmençe" data-language-local-name="turcomanno" class="interlanguage-link-target"><span>Türkmençe</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Planetang_unano" title="Planetang unano - tagalog" lang="tl" hreflang="tl" data-title="Planetang unano" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/C%C3%BCce_gezegen" title="Cüce gezegen - turco" lang="tr" hreflang="tr" data-title="Cüce gezegen" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%9A%D3%99%D1%80%D0%BB%D3%99_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Кәрлә планета - tataro" lang="tt" hreflang="tt" data-title="Кәрлә планета" data-language-autonym="Татарча / tatarça" data-language-local-name="tataro" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-ug mw-list-item"><a href="https://ug.wikipedia.org/wiki/%D9%BE%DB%95%D8%AA%DB%95%D9%83_%D9%8A%DB%87%D9%84%D8%AA%DB%87%D8%B2" title="پەتەك يۇلتۇز - uiguro" lang="ug" hreflang="ug" data-title="پەتەك يۇلتۇز" data-language-autonym="ئۇيغۇرچە / Uyghurche" data-language-local-name="uiguro" class="interlanguage-link-target"><span>ئۇيغۇرچە / Uyghurche</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9A%D0%B0%D1%80%D0%BB%D0%B8%D0%BA%D0%BE%D0%B2%D0%B0_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Карликова планета - ucraino" lang="uk" hreflang="uk" data-title="Карликова планета" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A8%D9%88%D9%86%D8%A7_%D8%B3%DB%8C%D8%A7%D8%B1%DB%81" title="بونا سیارہ - urdu" lang="ur" hreflang="ur" data-title="بونا سیارہ" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Karlik_sayyora" title="Karlik sayyora - uzbeco" lang="uz" hreflang="uz" data-title="Karlik sayyora" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeco" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/Pianeta_nano" title="Pianeta nano - veneto" lang="vec" hreflang="vec" data-title="Pianeta nano" data-language-autonym="Vèneto" data-language-local-name="veneto" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/H%C3%A0nh_tinh_l%C3%B9n" title="Hành tinh lùn - vietnamita" lang="vi" hreflang="vi" data-title="Hành tinh lùn" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Duwende_nga_planeta" title="Duwende nga planeta - waray" lang="war" hreflang="war" data-title="Duwende nga planeta" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E7%9F%AE%E8%A1%8C%E6%98%9F" title="矮行星 - wu" lang="wuu" hreflang="wuu" data-title="矮行星" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%AF%E1%83%A3%E1%83%99%E1%83%A3_%E1%83%9E%E1%83%9A%E1%83%90%E1%83%9C%E1%83%94%E1%83%A2%E1%83%90" title="ჯუკუ პლანეტა - mengrelio" lang="xmf" hreflang="xmf" data-title="ჯუკუ პლანეტა" data-language-autonym="მარგალური" data-language-local-name="mengrelio" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%A7%D7%90%D7%A8%D7%9C%D7%99%D7%A7-%D7%A4%D7%9C%D7%90%D7%A0%D7%A2%D7%98" title="קארליק-פלאנעט - yiddish" lang="yi" hreflang="yi" data-title="קארליק-פלאנעט" data-language-autonym="ייִדיש" data-language-local-name="yiddish" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%9F%AE%E8%A1%8C%E6%98%9F" title="矮行星 - cinese" lang="zh" hreflang="zh" data-title="矮行星" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E7%9F%AE%E8%A1%8C%E6%98%9F" title="矮行星 - cinese classico" lang="lzh" hreflang="lzh" data-title="矮行星" data-language-autonym="文言" data-language-local-name="cinese classico" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/%C3%89-he%CC%8Dk-chhe%E2%81%BF" title="É-he̍k-chheⁿ - min nan" lang="nan" hreflang="nan" data-title="É-he̍k-chheⁿ" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%9F%AE%E8%A1%8C%E6%98%9F" title="矮行星 - cantonese" lang="yue" hreflang="yue" data-title="矮行星" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a 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class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Strumenti pagine"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aspetto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">nascondi</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</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="it" dir="ltr"><p>Un <b>pianeta nano</b> è un <a href="/wiki/Corpo_celeste" class="mw-redirect" title="Corpo celeste">corpo celeste</a> di tipo planetario orbitante attorno a una <a href="/wiki/Stella" title="Stella">stella</a> e caratterizzato da una <a href="/wiki/Massa_(fisica)" title="Massa (fisica)">massa</a> sufficiente a conferirgli una forma quasi sferica, ma che non è stato in grado di "ripulire o sgomberare " la propria fascia orbitale da altri oggetti di dimensioni confrontabili: per quest'ultima caratteristica non rientra nella denominazione di <a href="/wiki/Pianeta" title="Pianeta">pianeta</a>. </p><p>Nonostante il nome, un pianeta nano <i>non</i> è necessariamente più piccolo di un pianeta. In teoria non vi è limite alle dimensioni dei pianeti nani. Si osservi inoltre che la classe dei pianeti è distinta da quella dei pianeti nani, e non comprende quest'ultima. </p><p>Il termine <i>pianeta nano</i> è stato introdotto ufficialmente nella nomenclatura astronomica il 24 agosto <a href="/wiki/2006" title="2006">2006</a> da un'assemblea dell'<a href="/wiki/Unione_Astronomica_Internazionale" title="Unione Astronomica Internazionale">Unione Astronomica Internazionale</a>, fra molte discussioni e polemiche. Tra le altre cose, si è fatto notare che il termine è fuorviante e che i criteri non sono oggettivi (nessun corpo può ripulire completamente la propria fascia orbitale, né esiste una soglia obiettiva su quando un corpo sia sferoidale o meno). Tuttavia, la necessità di creare questa classe di oggetti per distinguerla dai pianeti tradizionali esisteva, ed è probabile che il nome resti. </p><p>L'11 giugno <a href="/wiki/2008" title="2008">2008</a> il Comitato esecutivo dell'Unione Astronomica Internazionale riunitosi a <a href="/wiki/Oslo" title="Oslo">Oslo</a> ha assegnato il nome <a href="/wiki/Plutoide" title="Plutoide">plutoidi</a> alla classe dei pianeti nani <a href="/wiki/Oggetto_transnettuniano" title="Oggetto transnettuniano">transnettuniani</a><sup id="cite_ref-IAU0804_1-0" class="reference"><a href="#cite_note-IAU0804-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>, stabilendo al contempo un requisito preliminare per valutare il raggiungimento dell'<a href="/wiki/Equilibrio_idrostatico" title="Equilibrio idrostatico">equilibrio idrostatico</a>, con l'intenzione di favorire l'assegnazione dei nomi dei candidati plutoidi. L'<a href="/wiki/Unione_Astronomica_Internazionale" title="Unione Astronomica Internazionale">UAI</a> ha stabilito che un corpo celeste transnettuniano che possiede una <a href="/wiki/Magnitudine_assoluta" title="Magnitudine assoluta">magnitudine assoluta</a> inferiore a <kbd>H = +1</kbd> può essere ragionevolmente classificato tra i plutoidi e quindi tra i pianeti nani. </p><p>L'UAI riconosce cinque pianeti nani: <a href="/wiki/Cerere_(astronomia)" title="Cerere (astronomia)">Cerere</a>, <a href="/wiki/Plutone_(astronomia)" title="Plutone (astronomia)">Plutone</a>, <a href="/wiki/Haumea_(astronomia)" title="Haumea (astronomia)">Haumea</a>, <a href="/wiki/Makemake_(astronomia)" title="Makemake (astronomia)">Makemake</a> ed <a href="/wiki/Eris_(astronomia)" title="Eris (astronomia)">Eris</a><sup id="cite_ref-USGS_2-0" class="reference"><a href="#cite_note-USGS-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Storia_del_termine">Storia del termine</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_nano&veaction=edit&section=1" title="Modifica la sezione Storia del termine" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_nano&action=edit&section=1" title="Edit section's source code: Storia del termine"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Prima delle scoperte dell'inizio del <a href="/wiki/XXI_secolo" title="XXI secolo">XXI secolo</a>, gli studiosi non avevano avuto una forte necessità di una <a href="/wiki/Definizione_di_pianeta" title="Definizione di pianeta">definizione formale del termine pianeta</a>. </p><p>Dopo la scoperta di Plutone, nel <a href="/wiki/1930" title="1930">1930</a>, gli astronomi avevano stabilito che il <a href="/wiki/Sistema_solare" title="Sistema solare">Sistema solare</a> contenesse nove pianeti e migliaia di altri corpi dalle dimensioni significativamente minori, asteroidi e <a href="/wiki/Cometa" title="Cometa">comete</a>. Per quasi 50 anni, Plutone è stato ritenuto più grande di <a href="/wiki/Mercurio_(astronomia)" title="Mercurio (astronomia)">Mercurio</a><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>, ma la scoperta nel <a href="/wiki/1978" title="1978">1978</a> della sua luna <a href="/wiki/Caronte_(astronomia)" title="Caronte (astronomia)">Caronte</a> permise di misurarne la massa con precisione, ottenendo per essa un valore molto più piccolo delle stime iniziali<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>: il valore misurato corrispondeva a circa un ventesimo della massa di Mercurio, rendendo Plutone di gran lunga il pianeta più piccolo. Sebbene fosse ancora dieci volte più massiccio di <a href="/wiki/Cerere_(astronomia)" title="Cerere (astronomia)">Cerere</a>, l'oggetto più grande presente nella fascia principale degli asteroidi, anche dal confronto con la <a href="/wiki/Luna" title="Luna">Luna</a> Plutone appariva ridimensionato, raggiungendone appena un quinto della massa<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>. Inoltre, possedendo alcune caratteristiche inusuali quali un'elevata <a href="/wiki/Eccentricit%C3%A0_orbitale" title="Eccentricità orbitale">eccentricità orbitale</a> e un'elevata <a href="/wiki/Inclinazione_orbitale" title="Inclinazione orbitale">inclinazione orbitale</a>, divenne evidente che si trattava di un corpo differente da ogni altro pianeta<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup>. </p><p>Negli <a href="/wiki/Anni_1990" title="Anni 1990">anni novanta</a>, gli astronomi cominciarono a trovare altri oggetti nella stessa regione di spazio in cui orbita Plutone (conosciuta come <a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a>), e alcuni altri anche a distanze maggiori<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>. Alcuni di essi condividevano le caratteristiche chiave dell'orbita di Plutone, cosicché il corpo celeste cominciò a essere visto come il più grande di una nuova classe di oggetti, i <a href="/wiki/Plutino" title="Plutino">plutini</a>. Ciò portò alcuni astronomi a smettere di riferirsi a Plutone come a un pianeta e diversi termini, come <i>pianeta minore</i>, <i>sub-pianeta</i> e <i>planetoide</i> cominciarono a essere usati per gli oggetti in seguito indicati come <i>pianeti nani</i><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>. </p><p>Quando nel <a href="/wiki/2005" title="2005">2005</a> furono scoperti altri tre oggetti (<a href="/wiki/50000_Quaoar" title="50000 Quaoar">Quaoar</a>, <a href="/wiki/90377_Sedna" title="90377 Sedna">Sedna</a> ed <a href="/wiki/Eris_(astronomia)" title="Eris (astronomia)">Eris</a>) di dimensioni comparabili a quelle di Plutone<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup>, fu chiaro che si doveva o classificare anche loro come pianeti, oppure Plutone avrebbe dovuto essere riclassificato<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup>. Gli astronomi erano inoltre convinti che si potesse riuscire a scoprire altri oggetti delle dimensioni di Plutone e, quindi, il numero di pianeti con caratteristiche simili a Plutone sarebbe cresciuto rapidamente<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup>. </p><p>Nel <a href="/wiki/2006" title="2006">2006</a>, furono determinate le dimensioni di Eris (conosciuto allora come <span style="white-space:nowrap">2003 UB<sub>313</sub></span>) e lo si scoprì essere leggermente più grande di Plutone. Ufficiosamente, alcuni studiosi e giornalisti cominciarono a riferirsi all'oggetto come al <i><a href="/wiki/Pianeta_X" title="Pianeta X">Decimo pianeta</a></i><sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup>. Conseguentemente, la questione fu oggetto di un intenso dibattito durante la XXVI Assemblea Generale dell'Unione Astronomica Internazionale dell'agosto del 2006<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup>. </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:0planet-candidates.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/0planet-candidates.jpg/260px-0planet-candidates.jpg" decoding="async" width="260" height="152" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f3/0planet-candidates.jpg/390px-0planet-candidates.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f3/0planet-candidates.jpg/520px-0planet-candidates.jpg 2x" data-file-width="1173" data-file-height="688" /></a><figcaption>I 12 corpi indicati come potenziali pianeti secondo la prima bozza di proposta dell'UAI. Da notare che i primi due, Haumea e Makemake, sono stati in seguito identificati come pianeti nani.</figcaption></figure> <p>La prima bozza di proposta, avanzata dal gruppo di lavoro appositamente istituito dalla UAI, fu di considerare qualunque corpo con una forza di gravità tale da fargli raggiungere la forma di <a href="/wiki/Equilibrio_idrostatico" title="Equilibrio idrostatico">equilibrio idrostatico</a> (ovvero quasi sferica) come pianeta. Tale definizione avrebbe immediatamente incluso Eris e Cerere nella lista dei pianeti, più Caronte, considerando il suo sistema come un sistema doppio. Inoltre fu individuata una lista di 12 potenziali oggetti candidabili come pianeti, qualora si fosse dimostrata una forma modellata dall'equilibrio idrostatico. </p><p>Dopo l'opposizione di numerosi astronomi a una tale risoluzione, l'astronomo <a href="/wiki/Uruguay" title="Uruguay">uruguayano</a> <a href="/wiki/Julio_%C3%81ngel_Fern%C3%A1ndez" title="Julio Ángel Fernández">Julio Ángel Fernández</a> avanzò una proposta alternativa, in cui si creava una classificazione intermedia per quegli oggetti sufficientemente grandi da aver assunto una forma sferica, ma non abbastanza da <a href="/wiki/Dominanza_orbitale" title="Dominanza orbitale">aver ripulito la propria fascia orbitale</a> dalla maggior parte dei <a href="/wiki/Planetesimo" title="Planetesimo">planetesimi</a> che vi hanno orbitato dalla formazione del Sistema solare a oggi. Escludendo Caronte dalla lista, la nuova proposta assegnava Plutone, Cerere ed Eris alla nuova categoria<sup id="cite_ref-19aug_16-0" class="reference"><a href="#cite_note-19aug-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup>. </p><p>La risoluzione finale dell'Unione Astronomica Internazionale conservò la distinzione in tre categorie per i corpi celesti in orbita intorno al Sole. Fernández aveva suggerito di chiamare gli oggetti della classe intermedia <i>planetoidi</i><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><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>, ma la sessione plenaria della III Divisione della UAI votò unanimemente per <i>pianeti nani</i><sup id="cite_ref-finalresolution_19-0" class="reference"><a href="#cite_note-finalresolution-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup>. Nella risoluzione si legge: </p> <style data-mw-deduplicate="TemplateStyles:r139517313">.mw-parser-output .itwiki-template-citazione{margin-bottom:.5em;font-size:95%;padding-left:2.4em;padding-right:1.2em}.mw-parser-output .itwiki-template-citazione-doppia{display:flex;gap:1.2em}.mw-parser-output .itwiki-template-citazione-doppia>div{width:0;flex:1 1 0}.mw-parser-output .itwiki-template-citazione-footer{padding:0 1.2em 0 0;margin:0}</style><div class="itwiki-template-citazione"> <div class="itwiki-template-citazione-doppia"> <div>(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <p>«[...] The IAU therefore resolves that planets and other bodies in our Solar System, except satellites, be defined into three distinct categories in the following way: </p> <ol><li>A "planet"<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>n 1<span class="cite-bracket">]</span></a></sup> is a celestial body that: <ul><li>is in orbit around the Sun,</li> <li>has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and</li> <li>has cleared the neighbourhood around its orbit.</li></ul></li> <li>A "dwarf planet" is a celestial body that: <ul><li>is in orbit around the Sun,</li> <li>has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>n 2<span class="cite-bracket">]</span></a></sup>,</li> <li>has not cleared the neighbourhood around its orbit, and</li> <li>is not a satellite.</li></ul></li> <li>All other objects<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>n 3<span class="cite-bracket">]</span></a></sup> except satellites orbiting the Sun shall be referred to collectively as "Small Solar System Bodies".</li></ol> <hr /> <p><small>Footnotes:</small> </p> <dl><dd><small><div class="mw-references-wrap"><ol class="references"></ol></div></small></dd></dl><small> <li id="cite_note-20"><a href="#cite_ref-20"><b>^</b></a> <span class="reference-text">The eight planets are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.</span> </li> <li id="cite_note-21"><a href="#cite_ref-21"><b>^</b></a> <span class="reference-text">An IAU process will be established to assign borderline objects into either "dwarf planet" and other categories.</span> </li> <li id="cite_note-22"><a href="#cite_ref-22"><b>^</b></a> <span class="reference-text">These currently include most of the Solar System asteroids, most Trans-Neptunian Objects (TNOs), comets, and other small bodies.</span> </li> </small></div>» </div> <div>(<span style="font-weight:bolder; font-size:80%"><abbr title="italiano">IT</abbr></span>) <p>«[...] La IAU quindi decide che i pianeti e gli altri oggetti nel nostro sistema solare, eccetto i satelliti, siano classificati in tre categorie distinte nel modo seguente: </p> <ol><li>un "pianeta"<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>n 1<span class="cite-bracket">]</span></a></sup> è un corpo celeste che: <ul><li>è in orbita intorno al Sole;</li> <li>ha una massa sufficiente affinché la sua gravità possa vincere le forze di corpo rigido, cosicché assume una forma di equilibrio idrostatico (quasi sferica);</li> <li>ha ripulito le vicinanze intorno alla sua orbita;</li></ul></li> <li>un "pianeta nano" è un corpo celeste che: <ul><li>è in orbita intorno al Sole;</li> <li>ha una massa sufficiente affinché la sua gravità possa vincere le forze di corpo rigido, cosicché assume una forma di equilibrio idrostatico (quasi sferica)<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>n 2<span class="cite-bracket">]</span></a></sup>;</li> <li>non ha ripulito le vicinanze intorno alla sua orbita;</li> <li>non è un satellite.</li></ul></li> <li>tutti gli altri oggetti<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>n 3<span class="cite-bracket">]</span></a></sup>, eccetto i satelliti, che orbitano intorno al Sole devono essere considerati in maniera collettiva come "piccoli corpi del sistema solare".</li></ol> <hr /> <dl><dd><small>Note:</small></dd> <dd><small><div class="mw-references-wrap"><ol class="references"></ol></div></small></dd></dl><small> <li id="cite_note-23"><a href="#cite_ref-23"><b>^</b></a> <span class="reference-text">Gli <a href="/wiki/Pianeta#Pianeti_del_sistema_solare" title="Pianeta">otto pianeti</a> sono: <a href="/wiki/Mercurio_(astronomia)" title="Mercurio (astronomia)">Mercurio</a>, <a href="/wiki/Venere_(astronomia)" title="Venere (astronomia)">Venere</a>, <a href="/wiki/Terra" title="Terra">Terra</a>, <a href="/wiki/Marte_(astronomia)" title="Marte (astronomia)">Marte</a>, <a href="/wiki/Giove_(astronomia)" title="Giove (astronomia)">Giove</a>, <a href="/wiki/Saturno_(astronomia)" title="Saturno (astronomia)">Saturno</a>, <a href="/wiki/Urano_(astronomia)" title="Urano (astronomia)">Urano</a> e <a href="/wiki/Nettuno_(astronomia)" title="Nettuno (astronomia)">Nettuno</a>.</span> </li> <li id="cite_note-24"><a href="#cite_ref-24"><b>^</b></a> <span class="reference-text">Sarà attivata una procedura in seno all'IAU per assegnare ai casi limite lo <i>status</i> di pianeti nani o altro <i>status</i>.</span> </li> <li id="cite_note-25"><a href="#cite_ref-25"><b>^</b></a> <span class="reference-text">Questi principalmente includono la maggior parte degli asteroidi del Sistema solare, molti oggetti transnettuniani (TNO), le comete e altri corpi minori.</span> </li> </small></div>» </div><p class="itwiki-template-citazione-footer">(<small>Risoluzione B5 - Assemblea generale <a href="/wiki/Unione_astronomica_internazionale" class="mw-redirect" title="Unione astronomica internazionale">IAU</a> 2006, Praga.<sup id="cite_ref-finalresolution_19-1" class="reference"><a href="#cite_note-finalresolution-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup></small>)</p> <p>Sebbene ci fosse preoccupazione riguardo allo <i>status</i> di pianeti in altri <a href="/wiki/Sistema_planetario" title="Sistema planetario">sistemi solari</a><sup id="cite_ref-Draft_Resolution_5_26-0" class="reference"><a href="#cite_note-Draft_Resolution_5-26"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup>, tale questione ancora non è stata risolta; è stato proposto di decidere al riguardo soltanto quando saranno stati sviluppati strumenti in grado di permettere l'osservazione e lo studio di tali oggetti<sup id="cite_ref-19aug_16-1" class="reference"><a href="#cite_note-19aug-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup>. </p><p>La 6ª Risoluzione dell'UAI del 2006<sup id="cite_ref-Resolution_Result_27-0" class="reference"><a href="#cite_note-Resolution_Result-27"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> riconobbe Plutone come "il prototipo di una nuova categoria di oggetti transnettuniani". Il nome e la precisa natura di tale categoria non furono specificati e la loro comunicazione fu rimandata a data da destinarsi. L'11 giugno <a href="/wiki/2008" title="2008">2008</a>, il "Comitato Esecutivo" dell'Unione Astronomica Internazionale ha comunicato il nome, <i><a href="/wiki/Plutoide" title="Plutoide">plutoidi</a></i>, e la definizione: tutti i pianeti nani transnettuniani sono plutoidi<sup id="cite_ref-IAU0804_1-1" class="reference"><a href="#cite_note-IAU0804-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. L'11 luglio <a href="/wiki/2008" title="2008">2008</a>, il "Gruppo di lavoro per la nomenclatura dei Sistemi planetari" (<i>Working Group for Planetary System Nomenclature</i>) ha riclassificato l'oggetto allora noto come <i>(136472) 2005 FY<sub>9</sub></i> come un pianeta nano, rinominandolo <a href="/wiki/Makemake_(astronomia)" title="Makemake (astronomia)">Makemake</a><sup id="cite_ref-WGPSN_28-0" class="reference"><a href="#cite_note-WGPSN-28"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup>. Due mesi dopo, il 17 settembre anche <span style="white-space:nowrap">(136108) 2003 EL<sub>61</sub></span>, rinominato <a href="/wiki/Haumea_(astronomia)" title="Haumea (astronomia)">Haumea</a>, è stato classificato tra i pianeti nani<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Prospetto">Prospetto</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_nano&veaction=edit&section=2" title="Modifica la sezione Prospetto" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_nano&action=edit&section=2" title="Edit section's source code: Prospetto"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Segue un prospetto dei cinque corpi celesti orbitanti intorno al Sole che attualmente rientrano nella categoria dei pianeti nani<sup id="cite_ref-USGS_2-1" class="reference"><a href="#cite_note-USGS-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-JPL_30-0" class="reference"><a href="#cite_note-JPL-30"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup>. </p> <div style="clear:both;"></div> <table class="wikitable" style="width:100%;"> <tbody><tr style="text-align:center"> <th colspan="2" width="150">Nome </th> <th colspan="2"><a href="/wiki/Semiasse_maggiore" title="Semiasse maggiore">Semiasse maggiore</a> </th> <th><a href="/wiki/Diametro" title="Diametro">Diametro</a> medio </th> <th><a href="/wiki/Massa_(fisica)" title="Massa (fisica)">Massa</a> </th> <th colspan="2"><a href="/wiki/Fascia_asteroidale" class="mw-redirect" title="Fascia asteroidale">Fascia asteroidale</a> </th> <th> Scoperta  </th></tr> <tr style="text-align:center"> <td>1 </td> <td><b><a href="/wiki/Cerere_(astronomia)" title="Cerere (astronomia)">Cerere</a></b> </td> <td><span class="nowrap"><span data-sort-value="7011413690000000000♠"></span>413<span style="margin-left:.25em;">690</span><span style="margin-left:.25em;">000</span> <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td><span class="nowrap"><span data-sort-value="7011413638112485500♠"></span>2,765 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">au</a></span> </td> <td><span class="nowrap"><span data-sort-value="7005975000000000000♠"></span>975 × 909 <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td><span class="nowrap"><span data-sort-value="7020943000000000000♠"></span>(9,43<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0,07)<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>20</sup> <a href="/wiki/Chilogrammo" title="Chilogrammo">kg</a></span> </td> <td colspan="2"><a href="/wiki/Fascia_principale" title="Fascia principale">Fascia principale</a> </td> <td><a href="/wiki/1801" title="1801">1801</a> </td></tr> <tr style="text-align:center"> <td>134340 </td> <td><b><a href="/wiki/Plutone_(astronomia)" title="Plutone (astronomia)">Plutone</a></b> </td> <td><span class="nowrap"><span data-sort-value="7012590090000000000♠"></span>5<span style="margin-left:.25em;">900</span><span style="margin-left:.25em;">900</span><span style="margin-left:.25em;">000</span> <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td><span class="nowrap"><span data-sort-value="7012590088800976150♠"></span>39,445 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">au</a></span> </td> <td><span class="nowrap"><span data-sort-value="7006237000000000000♠"></span>2<span style="margin-left:.25em;">370</span><span style="margin-left:0.3em;margin-right:0.15em;">±</span>20 <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td><span class="nowrap"><span data-sort-value="7022130500000000000♠"></span>(1,305<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0,007)<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>22</sup> <a href="/wiki/Chilogrammo" title="Chilogrammo">kg</a></span> </td> <td><a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a> </td> <td><a href="/wiki/Plutino" title="Plutino">Plutino</a> </td> <td><a href="/wiki/1930" title="1930">1930</a> </td></tr> <tr style="text-align:center"> <td>136108 </td> <td><b><a href="/wiki/Haumea_(astronomia)" title="Haumea (astronomia)">Haumea</a></b> </td> <td><span class="nowrap"><span data-sort-value="7012642800000000000♠"></span>6<span style="margin-left:.25em;">428</span><span style="margin-left:.25em;">000</span><span style="margin-left:.25em;">000</span> <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td><span class="nowrap"><span data-sort-value="7012642792130823760♠"></span>42,968 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">au</a></span> </td> <td><span class="nowrap"><span data-sort-value="7006150000000000000♠"></span>1<span style="margin-left:.25em;">500</span> <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td><span class="nowrap"><span data-sort-value="7021420000000000000♠"></span>(4,2<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0,1)<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>21</sup> <a href="/wiki/Chilogrammo" title="Chilogrammo">kg</a></span> </td> <td><a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a> </td> <td><a href="/wiki/Cubewano" title="Cubewano">Cubewano</a> </td> <td><a href="/wiki/2004" title="2004">2004</a> </td></tr> <tr style="text-align:center"> <td>136472 </td> <td><b><a href="/wiki/Makemake_(astronomia)" title="Makemake (astronomia)">Makemake</a></b> </td> <td><span class="nowrap"><span data-sort-value="7012679000000000000♠"></span>6<span style="margin-left:.25em;">790</span><span style="margin-left:.25em;">000</span><span style="margin-left:.25em;">000</span> <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td><span class="nowrap"><span data-sort-value="7012678964895959020♠"></span>45,386 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">au</a></span> </td> <td><span class="nowrap"><span data-sort-value="7006150200000000000♠"></span>1<span style="margin-left:.25em;">502</span><span style="margin-left:0.3em;margin-right:0.15em;">±</span>45 <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td>~<span class="nowrap"><span data-sort-value="7021400000000000000♠"></span>4<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>21</sup> <a href="/wiki/Chilogrammo" title="Chilogrammo">kg</a></span> </td> <td><a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a> </td> <td><a href="/wiki/Cubewano" title="Cubewano">Cubewano</a> </td> <td><a href="/wiki/2005" title="2005">2005</a> </td></tr> <tr style="text-align:center"> <td>136199 </td> <td><b><a href="/wiki/Eris_(astronomia)" title="Eris (astronomia)">Eris</a></b> </td> <td><span class="nowrap"><span data-sort-value="7013101830000000000♠"></span>10<span style="margin-left:.25em;">183</span><span style="margin-left:.25em;">000</span><span style="margin-left:.25em;">000</span> <a href="/wiki/Chilometro" title="Chilometro">km</a></span> </td> <td><span class="nowrap"><span data-sort-value="7013101832766564197♠"></span>68,071 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">au</a></span> </td> <td><span class="nowrap"><span data-sort-value="7006232600000000000♠"></span>2<span style="margin-left:.25em;">326</span><span style="margin-left:0.3em;margin-right:0.15em;">±</span>12 <a href="/wiki/Chilometro" title="Chilometro">km</a></span><sup id="cite_ref-sicardy_31-0" class="reference"><a href="#cite_note-sicardy-31"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </td> <td><span class="nowrap"><span data-sort-value="7022167000000000000♠"></span>(1,67<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0,02)<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>22</sup> <a href="/wiki/Chilogrammo" title="Chilogrammo">kg</a></span><sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </td> <td colspan="2"><a href="/wiki/Disco_diffuso" title="Disco diffuso">Disco diffuso</a> </td> <td><a href="/wiki/2005" title="2005">2005</a> </td></tr></tbody></table> <div align="center"> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:PIA19562-Ceres-DwarfPlanet-Dawn-RC3-image19-20150506.jpg" class="mw-file-description" title="Cerere fotografato dalla sonda Dawn il 6 maggio 2015"><img alt="Cerere fotografato dalla sonda Dawn il 6 maggio 2015" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d3/PIA19562-Ceres-DwarfPlanet-Dawn-RC3-image19-20150506.jpg/120px-PIA19562-Ceres-DwarfPlanet-Dawn-RC3-image19-20150506.jpg" decoding="async" width="120" height="113" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d3/PIA19562-Ceres-DwarfPlanet-Dawn-RC3-image19-20150506.jpg/180px-PIA19562-Ceres-DwarfPlanet-Dawn-RC3-image19-20150506.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d3/PIA19562-Ceres-DwarfPlanet-Dawn-RC3-image19-20150506.jpg/240px-PIA19562-Ceres-DwarfPlanet-Dawn-RC3-image19-20150506.jpg 2x" data-file-width="925" data-file-height="870" /></a></span></div> <div class="gallerytext"><a href="/wiki/Cerere_(astronomia)" title="Cerere (astronomia)">Cerere</a> fotografato dalla <a href="/wiki/Missione_Dawn" title="Missione Dawn">sonda Dawn</a> il 6 maggio 2015</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Nh-pluto-in-true-color_2x.jpg" class="mw-file-description" title="Plutone fotografato dalla sonda New Horizons il 14 luglio 2015"><img alt="Plutone fotografato dalla sonda New Horizons il 14 luglio 2015" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Nh-pluto-in-true-color_2x.jpg/120px-Nh-pluto-in-true-color_2x.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Nh-pluto-in-true-color_2x.jpg/180px-Nh-pluto-in-true-color_2x.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Nh-pluto-in-true-color_2x.jpg/240px-Nh-pluto-in-true-color_2x.jpg 2x" data-file-width="1800" data-file-height="1800" /></a></span></div> <div class="gallerytext"><a href="/wiki/Plutone_(astronomia)" title="Plutone (astronomia)">Plutone</a> fotografato dalla sonda <a href="/wiki/New_Horizons" title="New Horizons">New Horizons</a> il 14 luglio 2015</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:2003EL61art.jpg" class="mw-file-description" title="Rappresentazione artistica di Haumea, con le sue due lune"><img alt="Rappresentazione artistica di Haumea, con le sue due lune" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/2003EL61art.jpg/120px-2003EL61art.jpg" decoding="async" width="120" height="101" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/2003EL61art.jpg/180px-2003EL61art.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/90/2003EL61art.jpg/240px-2003EL61art.jpg 2x" data-file-width="573" data-file-height="481" /></a></span></div> <div class="gallerytext">Rappresentazione artistica di <a href="/wiki/Haumea_(astronomia)" title="Haumea (astronomia)">Haumea</a>, con le sue <a href="/wiki/Satelliti_naturali_di_Haumea" class="mw-redirect" title="Satelliti naturali di Haumea">due lune</a></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Makemake_hubble.png" class="mw-file-description" title="Makemake fotografato dal Telescopio spaziale Hubble"><img alt="Makemake fotografato dal Telescopio spaziale Hubble" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/12/Makemake_hubble.png/120px-Makemake_hubble.png" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/12/Makemake_hubble.png/180px-Makemake_hubble.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/12/Makemake_hubble.png/240px-Makemake_hubble.png 2x" data-file-width="402" data-file-height="402" /></a></span></div> <div class="gallerytext"><a href="/wiki/Makemake_(astronomia)" title="Makemake (astronomia)">Makemake</a> fotografato dal <a href="/wiki/Telescopio_spaziale_Hubble" title="Telescopio spaziale Hubble">Telescopio spaziale Hubble</a></div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:2003_UB313_photos_single.jpg" class="mw-file-description" title="Una delle migliori immagini disponibili di Eris"><img alt="Una delle migliori immagini disponibili di Eris" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/2003_UB313_photos_single.jpg/119px-2003_UB313_photos_single.jpg" decoding="async" width="119" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/2003_UB313_photos_single.jpg/179px-2003_UB313_photos_single.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/b/b7/2003_UB313_photos_single.jpg 2x" data-file-width="199" data-file-height="200" /></a></span></div> <div class="gallerytext">Una delle migliori immagini disponibili di <a href="/wiki/Eris_(astronomia)" title="Eris (astronomia)">Eris</a></div> </li> </ul> </div> <div class="mw-heading mw-heading2"><h2 id="Candidati_pianeti_nani">Candidati pianeti nani</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_nano&veaction=edit&section=3" title="Modifica la sezione Candidati pianeti nani" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_nano&action=edit&section=3" title="Edit section's source code: Candidati pianeti nani"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r130657691">body:not(.skin-minerva) .mw-parser-output .vedi-anche{font-size:95%}</style><style data-mw-deduplicate="TemplateStyles:r139142988">.mw-parser-output .hatnote-content{align-items:center;display:flex}.mw-parser-output .hatnote-icon{flex-shrink:0}.mw-parser-output .hatnote-icon img{display:flex}.mw-parser-output .hatnote-text{font-style:italic}body:not(.skin-minerva) .mw-parser-output .hatnote{border:1px solid #CCC;display:flex;margin:.5em 0;padding:.2em .5em}body:not(.skin-minerva) .mw-parser-output .hatnote-text{padding-left:.5em}body.skin-minerva .mw-parser-output .hatnote-icon{padding-right:8px}body.skin-minerva .mw-parser-output .hatnote-icon img{height:auto;width:16px}body.skin--responsive .mw-parser-output .hatnote a.new{color:#d73333}body.skin--responsive .mw-parser-output .hatnote a.new:visited{color:#a55858}</style> <div class="hatnote noprint vedi-anche"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/18px-Magnifying_glass_icon_mgx2.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/27px-Magnifying_glass_icon_mgx2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/Magnifying_glass_icon_mgx2.svg/36px-Magnifying_glass_icon_mgx2.svg.png 2x" data-file-width="286" data-file-height="280" /></span></span> <span class="hatnote-text">Lo stesso argomento in dettaglio: <b><a href="/wiki/Possibili_pianeti_nani_del_sistema_solare" title="Possibili pianeti nani del sistema solare">Possibili pianeti nani del sistema solare</a></b>.</span></div> </div> <table class="wikitable floatright" style="font-size: 0.9em; text-align: center; width: 375px; margin-top: 4px;"> <tbody><tr> <th>Catologazione di Brown </th> <th><a href="/wiki/Diametro" title="Diametro">Diametro</a> </th> <th>Numero di Oggetti </th></tr> <tr style="background: #e0e0ff;"> <td>Quasi sicuramente </td> <td>>900 km </td> <td>10 </td></tr> <tr style="background: #e0ffff;"> <td>Altamente Probabile </td> <td>600–900 km </td> <td>29 </td></tr> <tr style="background: #d0ffd0;"> <td>Probabile </td> <td>500–600 km </td> <td>74 </td></tr> <tr style="background: #ffffd0;"> <td>Verosimile </td> <td>400–500 km </td> <td>145 </td></tr> <tr style="background: #ffe0c0;"> <td>Possibile </td> <td>200–400 km </td> <td>693 </td></tr> <tr> <th colspan="3" style="text-align: left; font-size: 0.92em; font-weight: normal; padding: 6px 2px 4px 4px;"><i>Fonte</i>: <a href="/wiki/Michael_E._Brown" title="Michael E. Brown">Michael E. Brown</a>,<sup id="cite_ref-brown-list_33-0" class="reference"><a href="#cite_note-brown-list-33"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> aggiornato al 15 settembre 2016. </th></tr></tbody></table> <p>La caratteristica rilevante di un pianeta nano è che "abbia massa sufficiente affinché la propria gravità possa superare le forze di <a href="/wiki/Corpo_rigido" title="Corpo rigido">corpo rigido</a> in modo tale da assumere una forma in <a href="/wiki/Equilibrio_idrostatico" title="Equilibrio idrostatico">equilibrio idrostatico</a> (prossimo alla sfericità) ".<sup id="cite_ref-iau2006_34-0" class="reference"><a href="#cite_note-iau2006-34"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-35" class="reference"><a href="#cite_note-35"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-iau2008_36-0" class="reference"><a href="#cite_note-iau2008-36"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> <a href="/wiki/1_Ceres" class="mw-redirect" title="1 Ceres">Cerere</a> è l'unico pianeta nano nella <a href="/wiki/Fascia_principale" title="Fascia principale">fascia principale</a>. Una recente analisi della <a href="/wiki/Missione_Dawn" title="Missione Dawn">sonda Dawn</a> sulla forma e del suo <a href="/wiki/Campo_gravitazionale" title="Campo gravitazionale">campo gravitazionale</a> di <a href="/wiki/4_Vesta" title="4 Vesta">Vesta</a>, il secondo oggetto celeste più massiccio della fascia, ha dimostrato che non è attualmente in equilibrio idrostatico.<sup id="cite_ref-Asmar_2012_37-0" class="reference"><a href="#cite_note-Asmar_2012-37"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-Russel_2012_38-0" class="reference"><a href="#cite_note-Russel_2012-38"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> <a href="/wiki/2_Pallas" title="2 Pallas">Pallade</a>, il terzo oggetto più massiccio, ha una superficie piuttosto irregolare.<sup id="cite_ref-Carry2009_39-0" class="reference"><a href="#cite_note-Carry2009-39"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> Tuttavia, alcune osservazioni condotte con il <a href="/wiki/Very_Large_Telescope" title="Very Large Telescope">Very Large Telescope</a> sembrano suggerire che <a href="/wiki/10_Hygiea" title="10 Hygiea">Igea</a>, il quarto asteroide per dimensioni presente nella fascia, possa essere considerato un pianeta nano, perché avrebbe una forma con una sfericità assai prossima a quella calcolabile per Cerere.<sup id="cite_ref-40" class="reference"><a href="#cite_note-40"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup> Se ciò fosse confermato, sarebbe uno dei pianeti nani più piccoli. <a href="/wiki/Michael_E._Brown" title="Michael E. Brown">Michael E. Brown</a> ha stimato che i corpi della fascia principale essendo molto rocciosi e non sufficientemente grandi da raggiungere i 900 <a href="/wiki/Chilometro" title="Chilometro">km</a> di <a href="/wiki/Diametro" title="Diametro">diametro</a>, difficilmente possono risultare in equilibrio idrostatico e di conseguenza classificabili come pianeti nani.<sup id="cite_ref-Brown_41-0" class="reference"><a href="#cite_note-Brown-41"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup> Sulla base di un confronto con le lune ghiacciate che sono state esplorate da veicoli spaziali, come <a href="/wiki/Mimas_(astronomia)" title="Mimas (astronomia)">Mimas</a> (rotondo a 400 km di diametro) e <a href="/wiki/Proteo_(astronomia)" title="Proteo (astronomia)">Proteo</a> (irregolare a 410–440 km di diametro), Brown ha stimato che gli <a href="/wiki/Oggetti_transnettuniani" class="mw-redirect" title="Oggetti transnettuniani">oggetti transnettuniani</a> essendo principalmente ghiacciati, tendono a rilassarsi in equilibrio idrostatico ad un diametro che si aggira tra 200 e i 400 km.<sup id="cite_ref-brown-list_33-1" class="reference"><a href="#cite_note-brown-list-33"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </p><p>I seguenti oggetti del sistema solare potrebbero essere classificati, in base alla definizione, come pianeti nani, sebbene l'<a href="/wiki/Unione_Astronomica_Internazionale" title="Unione Astronomica Internazionale">Unione Astronomica Internazionale</a> si riservi di decidere in futuro se includerli o meno nella lista ufficiale. </p> <table class="wikitable sortable" style="width:100%;"> <tbody><tr style="text-align:center"> <th colspan="2" width="150">Nome </th> <th data-sort-type="number"><a href="/wiki/Semiasse_maggiore" title="Semiasse maggiore">Semiasse maggiore</a> </th> <th data-sort-type="number"><a href="/wiki/Diametro" title="Diametro">Diametro</a> medio </th> <th data-sort-type="number"><a href="/wiki/Periodo_orbitale" class="mw-redirect" title="Periodo orbitale">Periodo orbitale</a> </th> <th colspan="2"><a href="/wiki/Fascia_asteroidale" class="mw-redirect" title="Fascia asteroidale">Fascia asteroidale</a> </th> <th> Scoperta  </th></tr> <tr style="text-align:center"> <td>225088 </td> <td><b><a href="/wiki/225088_Gonggong" title="225088 Gonggong">Gonggong</a></b> </td> <td>66,850 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">UA</a> </td> <td>1290 <a href="/wiki/Chilometro" title="Chilometro">km</a> </td> <td>546,6 <a href="/wiki/Anni" class="mw-redirect" title="Anni">anni</a> </td> <td colspan="2"><a href="/wiki/Disco_diffuso" title="Disco diffuso">Disco diffuso</a> </td> <td><a href="/wiki/2007" title="2007">2007</a> </td></tr> <tr style="text-align:center"> <td>50000 </td> <td><b><a href="/wiki/50000_Quaoar" title="50000 Quaoar">Quaoar</a></b> </td> <td>43,405 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">UA</a> </td> <td>1092 <a href="/wiki/Chilometro" title="Chilometro">km</a> </td> <td>285,97 <a href="/wiki/Anni" class="mw-redirect" title="Anni">anni</a> </td> <td><a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a> </td> <td><a href="/wiki/Cubewano" title="Cubewano">Cubewano</a> </td> <td><a href="/wiki/2002" title="2002">2002</a> </td></tr> <tr style="text-align:center"> <td>90377 </td> <td><b><a href="/wiki/90377_Sedna" title="90377 Sedna">Sedna</a></b> </td> <td>524,400 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">UA</a> </td> <td>1041 <a href="/wiki/Chilometro" title="Chilometro">km</a> </td> <td>12059,06 <a href="/wiki/Anni" class="mw-redirect" title="Anni">anni</a> </td> <td><a href="/wiki/Nube_di_Oort" title="Nube di Oort">Nube di Oort</a> </td> <td><a href="/wiki/Sednoide" title="Sednoide">Sednoide</a> </td> <td><a href="/wiki/2003" title="2003">2003</a> </td></tr> <tr style="text-align:center"> <td>90482 </td> <td><b><a href="/wiki/90482_Orcus" title="90482 Orcus">Orco</a></b> </td> <td>39,173 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">UA</a> </td> <td>983 <a href="/wiki/Chilometro" title="Chilometro">km</a> </td> <td>247,492 <a href="/wiki/Anni" class="mw-redirect" title="Anni">anni</a> </td> <td><a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a> </td> <td><a href="/wiki/Plutino" title="Plutino">Plutino</a> </td> <td><a href="/wiki/2004" title="2004">2004</a> </td></tr> <tr style="text-align:center"> <td>307261 </td> <td><b><span style="white-space:nowrap"><a href="/wiki/(307261)_2002_MS4" title="(307261) 2002 MS4">2002 MS<sub>4</sub></a></span></b> </td> <td>41,676 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">UA</a> </td> <td>960 <a href="/wiki/Chilometro" title="Chilometro">km</a> </td> <td>269,06 <a href="/wiki/Anni" class="mw-redirect" title="Anni">anni</a> </td> <td><a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a> </td> <td><a href="/wiki/Cubewano" title="Cubewano">Cubewano</a> </td> <td><a href="/wiki/2002" title="2002">2002</a> </td></tr> <tr style="text-align:center"> <td>120347 </td> <td><b><a href="/wiki/120347_Salacia" title="120347 Salacia">Salacia</a></b> </td> <td>41,907 <a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">UA</a> </td> <td>921 <a href="/wiki/Chilometro" title="Chilometro">km</a> </td> <td>271,29 <a href="/wiki/Anni" class="mw-redirect" title="Anni">anni</a> </td> <td><a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a> </td> <td><a href="/wiki/Cubewano" title="Cubewano">Cubewano</a> </td> <td><a href="/wiki/2004" title="2004">2004</a> </td></tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_nano&veaction=edit&section=4" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_nano&action=edit&section=4" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-IAU0804-1"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-IAU0804_1-0">a</a></i></sup> <sup><i><a href="#cite_ref-IAU0804_1-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20080613121232/http://www.iau.org/public_press/news/release/iau0804/"><span style="font-style:italic;">Plutoid chosen as name for Solar System objects like Pluto</span></a>, su <span style="font-style:italic;">iau.org</span>, <a href="/wiki/Unione_Astronomica_Internazionale" title="Unione Astronomica Internazionale">International Astronomical Union</a> (IAU0804), 11 giugno 2008. <small>URL consultato il 16 luglio 2008</small> <small>(archiviato dall'<abbr title="http://www.iau.org/public_press/news/release/iau0804">url originale</abbr> il 13 giugno 2008)</small>.</cite></span> </li> <li id="cite_note-USGS-2"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-USGS_2-0">a</a></i></sup> <sup><i><a href="#cite_ref-USGS_2-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://planetarynames.wr.usgs.gov/append7.html#DwarfPlanets"><span style="font-style:italic;">Dwarf Planets and their Systems</span></a>, su <span style="font-style:italic;">Gazetteer of Planetary Nomenclature</span>, US Geological Survey (USGS). <small>URL consultato l'8 settembre 2009</small>.</cite></span> </li> <li id="cite_note-3"><a href="#cite_ref-3"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Brad Mager, <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110722004610/http://www.discoveryofpluto.com/pluto06.html"><span style="font-style:italic;">Pluto Revealed</span></a>, su <span style="font-style:italic;">discoveryofpluto.com</span>. <small>URL consultato il 18 luglio 2008</small> <small>(archiviato dall'<abbr title="http://www.discoveryofpluto.com/pluto06.html">url originale</abbr> il 22 luglio 2011)</small>.</cite></span> </li> <li id="cite_note-4"><a href="#cite_ref-4"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Cuk, Matija; Masters, Karen, <a rel="nofollow" class="external text" href="http://curious.astro.cornell.edu/question.php?number=624"><span style="font-style:italic;">Is Pluto a planet?</span></a>, su <span style="font-style:italic;">curious.astro.cornell.edu</span>, Cornell University, Astronomy Department, 14 settembre 2007. <small>URL consultato il 18 luglio 2008</small>.</cite></span> </li> <li id="cite_note-5"><a href="#cite_ref-5"><b>^</b></a> <span class="reference-text">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <cite class="citation pubblicazione" style="font-style:normal"> Marc W. Buie, William M. Grundy, Eliot F. Young, Leslie A. Young and <a href="/wiki/Alan_Stern" title="Alan Stern">S. Alan Stern</a>, <span style="font-style:italic;">Orbits and Photometry of Pluto's Satellites: Charon, S/2005 P1, and S/2005 P2</span> (<a rel="nofollow" class="external text" href="http://www.iop.org/EJ/abstract/1538-3881/132/1/290">abstract</a>), in <span style="font-style:italic;">The Astronomical Journal</span>, vol. 132, n. 132, 2006, pp. 290–98, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1086%2F504422">10.1086/504422</a>. <small>URL consultato il 10 febbraio 2008</small>.</cite></span> </li> <li id="cite_note-6"><a href="#cite_ref-6"><b>^</b></a> <span class="reference-text">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <cite class="citation libro" style="font-style:normal"> David Jewitt, Delsanti, Audrey, <a rel="nofollow" class="external text" href="https://web.archive.org/web/20070129151907/http://www.ifa.hawaii.edu/faculty/jewitt/papers/2006/DJ06.pdf"><span style="font-style:italic;">The Solar System Beyond The Planets in Solar System Update : Topical and Timely Reviews in Solar System Sciences (PDF)</span></a> (<span style="font-weight: bolder; font-size:80%"><abbr title="documento in formato PDF">PDF</abbr></span>), Springer, 2006, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1007%2F3-540-37683-6">10.1007/3-540-37683-6</a>, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/978-3-540-37683-5" title="Speciale:RicercaISBN/978-3-540-37683-5">978-3-540-37683-5</a>. <small>URL consultato il 10 febbraio 2008</small> <small>(archiviato dall'<abbr title="http://www.ifa.hawaii.edu/faculty/jewitt/papers/2006/DJ06.pdf">url originale</abbr> il 29 gennaio 2007)</small>.</cite></span> </li> <li id="cite_note-7"><a href="#cite_ref-7"><b>^</b></a> <span class="reference-text">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <cite class="citation libro" style="font-style:normal"> David A. 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font-size:80%"><abbr title="documento in formato PDF">PDF</abbr></span>), su <span style="font-style:italic;">arxiv.org</span>, 2009, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1016%2Fj.icarus.2009.08.007">10.1016/j.icarus.2009.08.007</a>, <a href="/wiki/ArXiv" title="ArXiv">arXiv</a>:<a rel="nofollow" class="external text" href="http://arxiv.org/abs/0912.3626">0912.3626</a>. <small>URL consultato il 13 settembre 2015</small>.</cite></span> </li> <li id="cite_note-40"><a href="#cite_ref-40"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Pierre Vernazza <i>et al.</i>, <a rel="nofollow" class="external text" href="https://oadoi.org/10.1038/s41550-019-0915-8"><span style="font-style:italic;">A basin-free spherical shape as an outcome of a giant impact on asteroid Hygiea</span></a>, in <span style="font-style:italic;">Nature Astronomy</span>, 28 ottobre 2019, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1038%2Fs41550-019-0915-8">10.1038/s41550-019-0915-8</a>.</cite></span> </li> <li id="cite_note-Brown-41"><a href="#cite_ref-Brown_41-0"><b>^</b></a> <span class="reference-text">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <cite class="citation web" style="font-style:normal"> Mike Brown, <a rel="nofollow" class="external text" href="http://web.gps.caltech.edu/~mbrown/dwarfplanets/"><span style="font-style:italic;">The Dwarf Planets</span></a>, su <span style="font-style:italic;">web.gps.caltech.edu</span>. <small>URL consultato il 20 gennaio 2008</small>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_nano&veaction=edit&section=5" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_nano&action=edit&section=5" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><span class="plainlinks" title="commons:Category:Dwarf planets of the Solar System"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Dwarf_planets_of_the_Solar_System?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file su <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Dwarf_planets_of_the_Solar_System?uselang=it">pianeta nano</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_nano&veaction=edit&section=6" title="Modifica la sezione Collegamenti esterni" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_nano&action=edit&section=6" title="Edit section's source code: Collegamenti esterni"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li class="mw-empty-elt"></li> <li><cite id="CITEREFBritannica.com" class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Clark R. Chapman, <a rel="nofollow" class="external text" href="https://www.britannica.com/topic/dwarf-planet"><span style="font-style:italic;">dwarf planet</span></a>, su <span style="font-style:italic;"><a href="/wiki/Enciclopedia_Britannica" title="Enciclopedia Britannica">Enciclopedia Britannica</a></span>, Encyclopædia Britannica, Inc.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q2199#P1417" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/10px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/15px-Blue_pencil.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png 2x" data-file-width="600" data-file-height="600" /></a></span></li></ul> <style data-mw-deduplicate="TemplateStyles:r141815314">.mw-parser-output .navbox{border:1px solid #aaa;clear:both;margin:auto;padding:2px;width:100%}.mw-parser-output .navbox th{padding-left:1em;padding-right:1em;text-align:center}.mw-parser-output .navbox>tbody>tr:first-child>th{background:#ccf;font-size:90%;width:100%;color:var(--color-base,black)}.mw-parser-output .navbox_navbar{float:left;margin:0;padding:0 10px 0 0;text-align:left;width:6em}.mw-parser-output .navbox_title{font-size:110%}.mw-parser-output .navbox_abovebelow{background:#ddf;font-size:90%;font-weight:normal}.mw-parser-output .navbox_group{background:#ddf;font-size:90%;padding:0 10px;white-space:nowrap}.mw-parser-output .navbox_list{font-size:90%;width:100%}.mw-parser-output .navbox_list a{white-space:nowrap}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_odd{background:#fdfdfd;color:var(--color-base,black)}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_even{background:#f7f7f7;color:var(--color-base,black)}.mw-parser-output .navbox a.mw-selflink{color:var(--color-base,black)}.mw-parser-output .navbox_center{text-align:center}.mw-parser-output .navbox .navbox_image{padding-left:7px;vertical-align:middle;width:0}.mw-parser-output .navbox+.navbox{margin-top:-1px}.mw-parser-output .navbox .mw-collapsible-toggle{font-weight:normal;text-align:right;width:7em}body.skin--responsive .mw-parser-output .navbox_image img{max-width:none!important}.mw-parser-output .subnavbox{margin:-3px;width:100%}.mw-parser-output .subnavbox_group{background:#e6e6ff;padding:0 10px}@media screen{html.skin-theme-clientpref-night .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-night .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-night .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-os .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-os .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}</style><table class="navbox mw-collapsible autocollapse noprint metadata" id="navbox-Asteroide"><tbody><tr><th colspan="3" style="background-color:gray"><div class="navbox_navbar"><div class="noprint plainlinks" style="background-color:transparent; padding:0; font-size:xx-small; color:var(--color-base, #000000); white-space:nowrap;"><a href="/wiki/Template:Asteroide" title="Template:Asteroide"><span title="Vai alla pagina del template">V</span></a> · <a href="/wiki/Discussioni_template:Asteroide" title="Discussioni template:Asteroide"><span title="Discuti del template">D</span></a> · <a class="external text" href="https://it.wikipedia.org/w/index.php?title=Template:Asteroide&action=edit"><span title="Modifica il template. Usa l'anteprima prima di salvare">M</span></a></div></div><span class="navbox_title"><a href="/wiki/Asteroide" title="Asteroide">Asteroidi</a> del <a href="/wiki/Sistema_solare" title="Sistema solare">sistema solare</a></span></th></tr><tr><th colspan="1" class="navbox_group" style="background-color:gray"><a class="mw-selflink selflink">Pianeti nani</a></th><td colspan="1" class="navbox_list navbox_odd"><a href="/wiki/Cerere_(astronomia)" title="Cerere (astronomia)">Cerere</a><b> ·</b> <a href="/wiki/Plutoide" title="Plutoide">Plutoidi</a>: <a href="/wiki/Plutone_(astronomia)" title="Plutone (astronomia)">Plutone</a> (<a href="/wiki/Satelliti_naturali_di_Plutone" title="Satelliti naturali di Plutone">☾</a> ) · <a href="/wiki/Haumea_(astronomia)" title="Haumea (astronomia)">Haumea</a> (<a href="/wiki/Satelliti_naturali_di_Haumea" class="mw-redirect" title="Satelliti naturali di Haumea">☾</a> ) · <a href="/wiki/Makemake_(astronomia)" title="Makemake (astronomia)">Makemake</a> (<a href="/wiki/S/2015_(136472)_1" title="S/2015 (136472) 1">☾</a> ) · <a href="/wiki/Eris_(astronomia)" title="Eris (astronomia)">Eris</a> (<a href="/wiki/Disnomia_(astronomia)" title="Disnomia (astronomia)">☾</a> )</td><td rowspan="4" class="navbox_image"><span typeof="mw:File"><a href="/wiki/File:Vesta_Full-Frame.jpg" class="mw-file-description" title="L'asteroide 4 Vesta"><img alt="L'asteroide 4 Vesta" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/Vesta_Full-Frame.jpg/120px-Vesta_Full-Frame.jpg" decoding="async" width="120" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/Vesta_Full-Frame.jpg/180px-Vesta_Full-Frame.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/23/Vesta_Full-Frame.jpg/240px-Vesta_Full-Frame.jpg 2x" data-file-width="1024" data-file-height="1024" /></a></span></td></tr><tr><th colspan="1" class="navbox_group" style="background-color:gray">Gruppi<br />asteroidali</th><td colspan="1" class="navbox_list navbox_even"><a href="/wiki/Vulcanoide" title="Vulcanoide">Vulcanoidi</a><b> ·</b> <a href="/wiki/Asteroide_near-Earth" title="Asteroide near-Earth">NEA</a> (<a href="/wiki/Asteroide_Apollo" title="Asteroide Apollo">Apollo</a> · <a href="/wiki/Asteroide_Aten" title="Asteroide Aten">Aten</a> · <a href="/wiki/Asteroide_Amor" title="Asteroide Amor">Amor</a>)<b> ·</b> <a href="/wiki/Fascia_principale" title="Fascia principale">Fascia principale</a><b> ·</b> Planetosecanti (<a href="/wiki/Asteroide_ermeosecante" title="Asteroide ermeosecante">Mercurio</a> · <a href="/wiki/Asteroide_citerosecante" title="Asteroide citerosecante">Venere</a> · <a href="/wiki/Asteroide_geosecante" title="Asteroide geosecante">Terra</a> · <a href="/wiki/Asteroide_areosecante" title="Asteroide areosecante">Marte</a> · <a href="/wiki/Asteroide_zenosecante" title="Asteroide zenosecante">Giove</a> · <a href="/wiki/Asteroide_cronosecante" title="Asteroide cronosecante">Saturno</a> · <a href="/wiki/Asteroide_uranosecante" title="Asteroide uranosecante">Urano</a> · <a href="/wiki/Asteroide_poseidosecante" title="Asteroide poseidosecante">Nettuno</a>)<b> ·</b> <a href="/wiki/Troiano_(astronomia)" title="Troiano (astronomia)">Troiani</a> (<a href="/wiki/Asteroidi_troiani_della_Terra" title="Asteroidi troiani della Terra">della Terra</a> · <a href="/wiki/Asteroidi_troiani_di_Marte" title="Asteroidi troiani di Marte">di Marte</a> · <a href="/wiki/Asteroidi_troiani_di_Giove" title="Asteroidi troiani di Giove">di Giove</a> · <a href="/wiki/Asteroidi_troiani_di_Nettuno" title="Asteroidi troiani di Nettuno">di Nettuno</a>)<b> ·</b> <a href="/wiki/Centauro_(astronomia)" title="Centauro (astronomia)">Centauri</a><b> ·</b> <a href="/wiki/Oggetto_transnettuniano" title="Oggetto transnettuniano">TNO</a> (<a href="/wiki/Fascia_di_Kuiper" title="Fascia di Kuiper">Fascia di Kuiper</a> – <a href="/wiki/Plutino" title="Plutino">Plutini</a> · <a href="/wiki/Cubewano" title="Cubewano">Cubewani</a> · <a href="/wiki/Twotino" title="Twotino">Twotini</a> – · <a href="/wiki/Disco_diffuso" title="Disco diffuso">Disco diffuso</a>)<b> ·</b> <a href="/wiki/Famiglia_di_asteroidi" title="Famiglia di asteroidi">Gruppi e famiglie</a> (<a href="/wiki/Famiglia_collisionale" title="Famiglia collisionale">Famiglie collisionali</a>)</td></tr><tr><th colspan="1" class="navbox_group" style="background-color:gray"><a href="/wiki/Classificazione_spettrale_degli_asteroidi" title="Classificazione spettrale degli asteroidi">Classi spettrali</a></th><td colspan="1" class="navbox_list navbox_odd"><a href="/wiki/Classificazione_spettrale_degli_asteroidi#Classificazione_Tholen" title="Classificazione spettrale degli asteroidi">Tholen</a>: <a href="/wiki/Asteroide_di_tipo_B" title="Asteroide di tipo B">B</a> · <a href="/wiki/Asteroide_di_tipo_F" title="Asteroide di tipo F">F</a> · <a href="/wiki/Asteroide_di_tipo_G" title="Asteroide di tipo G">G</a> · <a href="/wiki/Asteroide_di_tipo_C" title="Asteroide di tipo C">C</a> · <a href="/wiki/Asteroide_di_tipo_S" title="Asteroide di tipo S">S</a> · <a href="/wiki/Asteroide_di_tipo_X" title="Asteroide di tipo X">X</a> · <a href="/wiki/Asteroide_di_tipo_M" title="Asteroide di tipo M">M</a> · <a href="/wiki/Asteroide_di_tipo_E" title="Asteroide di tipo E">E</a> · <a href="/wiki/Asteroide_di_tipo_P" title="Asteroide di tipo P">P</a> · <a href="/wiki/Asteroide_di_tipo_A" title="Asteroide di tipo A">A</a> · <a href="/wiki/Asteroide_di_tipo_D" title="Asteroide di tipo D">D</a> · <a href="/wiki/Asteroide_di_tipo_T" title="Asteroide di tipo T">T</a> · <a href="/wiki/Asteroide_di_tipo_Q" title="Asteroide di tipo Q">Q</a> · <a href="/wiki/Asteroide_di_tipo_R" title="Asteroide di tipo R">R</a> · <a href="/wiki/Asteroide_di_tipo_V" title="Asteroide di tipo V">V</a><b> ·</b> <a href="/wiki/Classificazione_spettrale_degli_asteroidi#Classificazione_SMASS" title="Classificazione spettrale degli asteroidi"> SMASS</a>: <a href="/wiki/Asteroide_di_tipo_C" title="Asteroide di tipo C">C</a> · <a href="/wiki/Asteroide_di_tipo_B" title="Asteroide di tipo B">B</a> · <a href="/wiki/Asteroide_di_tipo_S" title="Asteroide di tipo S">S</a> · <a href="/wiki/Asteroide_di_tipo_A" title="Asteroide di tipo A">A</a> · <a href="/wiki/Asteroide_di_tipo_Q" title="Asteroide di tipo Q">Q</a> · <a href="/wiki/Asteroide_di_tipo_R" title="Asteroide di tipo R">R</a> · <a href="/wiki/Asteroide_di_tipo_K" title="Asteroide di tipo K">K</a> · <a href="/wiki/Asteroide_di_tipo_L" class="mw-redirect" title="Asteroide di tipo L">L</a> · <a href="/wiki/Asteroide_di_tipo_X" title="Asteroide di tipo X">X</a> · <a href="/wiki/Asteroide_di_tipo_T" title="Asteroide di tipo T">T</a> · <a href="/wiki/Asteroide_di_tipo_D" title="Asteroide di tipo D">D</a> · <a href="/wiki/Asteroide_di_tipo_L" class="mw-redirect" title="Asteroide di tipo L">Ld</a> · <a href="/wiki/Asteroide_di_tipo_O" class="mw-redirect" title="Asteroide di tipo O">O</a> · <a href="/wiki/Asteroide_di_tipo_V" title="Asteroide di tipo V">V</a></td></tr><tr><th colspan="1" class="navbox_group" style="background-color:gray">Altro</th><td colspan="1" class="navbox_list navbox_even"><a href="/wiki/Asteroidi_principali_del_sistema_solare" title="Asteroidi principali del sistema solare">Asteroidi principali</a><b> ·</b> <a href="/wiki/Lista_di_asteroidi" title="Lista di asteroidi">Lista completa</a><b> ·</b> <a href="/wiki/Satellite_asteroidale" title="Satellite asteroidale">Satelliti asteroidali</a><b> ·</b> <a href="/wiki/Asteroide_binario" title="Asteroide binario">Asteroidi binari</a><b> ·</b> <a href="/wiki/Famiglia_di_asteroidi" title="Famiglia di asteroidi">Famiglie asteroidali</a></td></tr></tbody></table> <style data-mw-deduplicate="TemplateStyles:r140554510">.mw-parser-output .CdA{border:1px solid #aaa;width:100%;margin:auto;font-size:90%;padding:2px}.mw-parser-output .CdA th{background-color:#f2f2f2;font-weight:bold;width:20%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .CdA th{background-color:#202122}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .CdA{border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .CdA th{background-color:#202122}}</style><table class="CdA"><tbody><tr><th><a href="/wiki/Aiuto:Controllo_di_autorit%C3%A0" title="Aiuto:Controllo di autorità">Controllo di autorità</a></th><td><a href="/wiki/Nuovo_soggettario" title="Nuovo soggettario">Thesaurus BNCF</a> <span class="uid"><a rel="nofollow" class="external text" href="https://thes.bncf.firenze.sbn.it/termine.php?id=75174">75174</a></span><span style="font-weight:bold;"> ·</span> <a href="/wiki/Gemeinsame_Normdatei" title="Gemeinsame Normdatei">GND</a> <span class="uid">(<span style="font-weight:bolder; font-size:80%"><abbr title="tedesco">DE</abbr></span>) <a rel="nofollow" class="external text" href="https://d-nb.info/gnd/7540854-5">7540854-5</a></span></td></tr></tbody></table> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-grow: 1"><style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}</style><div class="itwiki-template-occhiello"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Jupiter_and_moon.png" class="mw-file-description" title="Sistema solare"><img alt=" " src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/25px-Jupiter_and_moon.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/38px-Jupiter_and_moon.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Jupiter_and_moon.png/50px-Jupiter_and_moon.png 2x" data-file-width="128" data-file-height="128" /></a></span> <b><a href="/wiki/Portale:Sistema_solare" title="Portale:Sistema solare">Portale Sistema solare</a></b>: accedi alle voci di Wikipedia sugli oggetti del Sistema solare</div></div></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="">Estratto da "<a dir="ltr" href="https://it.wikipedia.org/w/index.php?title=Pianeta_nano&oldid=141969473">https://it.wikipedia.org/w/index.php?title=Pianeta_nano&oldid=141969473</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Categoria:Categorie" title="Categoria:Categorie">Categoria</a>: <ul><li><a href="/wiki/Categoria:Pianeti_nani" title="Categoria:Pianeti nani">Pianeti nani</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categorie nascoste: <ul><li><a href="/wiki/Categoria:Voci_con_modulo_citazione_e_parametro_coautori" title="Categoria:Voci con modulo citazione e parametro coautori">Voci con modulo citazione e parametro coautori</a></li><li><a href="/wiki/Categoria:Voci_con_modulo_citazione_e_parametro_pagine" title="Categoria:Voci con modulo citazione e parametro pagine">Voci con modulo citazione e parametro pagine</a></li><li><a href="/wiki/Categoria:P1417_letta_da_Wikidata" title="Categoria:P1417 letta da Wikidata">P1417 letta da Wikidata</a></li><li><a href="/wiki/Categoria:Voci_con_codice_Thesaurus_BNCF" title="Categoria:Voci con codice Thesaurus BNCF">Voci con codice Thesaurus BNCF</a></li><li><a href="/wiki/Categoria:Voci_con_codice_GND" title="Categoria:Voci con codice GND">Voci con codice GND</a></li><li><a href="/wiki/Categoria:Voci_non_biografiche_con_codici_di_controllo_di_autorit%C3%A0" title="Categoria:Voci non biografiche con codici di controllo di autorità">Voci non biografiche con codici di controllo di autorità</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul 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