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class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_it.wikipedia.org&uselang=it" class=""><span>Fai una donazione</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:CreaUtenza&returnto=Pianeta+terrestre" title="Si consiglia di registrarsi e di effettuare l'accesso, anche se non è obbligatorio" class=""><span>registrati</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:Entra&returnto=Pianeta+terrestre" title="Si consiglia di effettuare l'accesso, anche se non è obbligatorio [o]" accesskey="o" 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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-Struttura" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Struttura"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Struttura</span> </div> </a> <ul id="toc-Struttura-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Pianeti_terrestri_del_Sistema_solare" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Pianeti_terrestri_del_Sistema_solare"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Pianeti terrestri del Sistema solare</span> </div> </a> <button aria-controls="toc-Pianeti_terrestri_del_Sistema_solare-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Pianeti terrestri del Sistema solare</span> </button> <ul id="toc-Pianeti_terrestri_del_Sistema_solare-sublist" class="vector-toc-list"> <li id="toc-Andamento_delle_densità" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Andamento_delle_densità"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Andamento delle densità</span> </div> </a> <ul id="toc-Andamento_delle_densità-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Pianeti_terrestri_extrasolari" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Pianeti_terrestri_extrasolari"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Pianeti terrestri extrasolari</span> </div> </a> <ul id="toc-Pianeti_terrestri_extrasolari-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tipi_di_pianeti_terrestri" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tipi_di_pianeti_terrestri"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Tipi di pianeti terrestri</span> </div> </a> <ul id="toc-Tipi_di_pianeti_terrestri-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">5</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliografia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bibliografia"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Bibliografia</span> </div> </a> <ul id="toc-Bibliografia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-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">8</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">9</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 terrestre</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 88 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-88" 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">88 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 mw-list-item"><a href="https://af.wikipedia.org/wiki/Aardplaneet" title="Aardplaneet - afrikaans" lang="af" hreflang="af" data-title="Aardplaneet" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-am mw-list-item"><a href="https://am.wikipedia.org/wiki/%E1%89%8B%E1%8C%A5%E1%8A%9B%E1%8B%8A_%E1%8B%AD%E1%8B%98%E1%89%B5_%E1%8B%AB%E1%88%8B%E1%89%B8%E1%8B%8D_%E1%8D%95%E1%88%8B%E1%8A%94%E1%89%B6%E1%89%BD" title="ቋጥኛዊ ይዘት ያላቸው ፕላኔቶች - amarico" lang="am" hreflang="am" data-title="ቋጥኛዊ ይዘት ያላቸው ፕላኔቶች" data-language-autonym="አማርኛ" data-language-local-name="amarico" class="interlanguage-link-target"><span>አማርኛ</span></a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%B8%E0%A5%8D%E0%A4%A5%E0%A4%B2%E0%A5%80%E0%A4%AF_%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="स्थलीय ग्रह - angika" lang="anp" hreflang="anp" data-title="स्थलीय 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_%D8%A3%D8%B1%D8%B6%D9%8A" title="كوكب أرضي - arabo" lang="ar" hreflang="ar" data-title="كوكب أرضي" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Planeta_terrestre" title="Planeta terrestre - asturiano" lang="ast" hreflang="ast" data-title="Planeta terrestre" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%9F%D0%BB%D1%8F%D0%BD%D1%8D%D1%82%D0%B0_%D0%B7%D1%8F%D0%BC%D0%BD%D0%BE%D0%B3%D0%B0_%D1%82%D1%8B%D0%BF%D1%83" title="Плянэта зямнога тыпу - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Плянэта зямнога тыпу" 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%97%D0%B5%D0%BC%D0%B5%D0%BF%D0%BE%D0%B4%D0%BE%D0%B1%D0%BD%D0%B0_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Земеподобна планета - bulgaro" lang="bg" hreflang="bg" data-title="Земеподобна планета" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%B6%E0%A6%BF%E0%A6%B2%E0%A6%BE%E0%A6%AE%E0%A6%AF%E0%A6%BC_%E0%A6%97%E0%A7%8D%E0%A6%B0%E0%A6%B9" title="শিলাময় গ্রহ - bengalese" lang="bn" hreflang="bn" data-title="শিলাময় গ্রহ" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Terestri%C4%8Dka_planeta" title="Terestrička planeta - bosniaco" lang="bs" hreflang="bs" data-title="Terestrička 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_tel%C2%B7l%C3%BAric" title="Planeta tel·lúric - catalano" lang="ca" hreflang="ca" data-title="Planeta tel·lúric" 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%A8%DB%95%D8%B1%D8%AF%DB%8C%D9%86" title="ھەسارەی بەردین - curdo centrale" lang="ckb" hreflang="ckb" data-title="ھەسارەی بەردین" 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/Terestrick%C3%A1_planeta" title="Terestrická planeta - ceco" lang="cs" hreflang="cs" data-title="Terestrická planeta" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Klippeplanet" title="Klippeplanet - danese" lang="da" hreflang="da" data-title="Klippeplanet" 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/Erd%C3%A4hnlicher_Himmelsk%C3%B6rper" title="Erdähnlicher Himmelskörper - tedesco" lang="de" hreflang="de" data-title="Erdähnlicher Himmelskörper" 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%93%CE%AE%CE%B9%CE%BD%CE%BF%CF%82_%CF%80%CE%BB%CE%B1%CE%BD%CE%AE%CF%84%CE%B7%CF%82" title="Γήινος πλανήτης - greco" lang="el" hreflang="el" data-title="Γήινος πλανήτης" data-language-autonym="Ελληνικά" data-language-local-name="greco" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Terrestrial_planet" title="Terrestrial planet - inglese" lang="en" hreflang="en" data-title="Terrestrial 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/Tereca_planedo" title="Tereca planedo - esperanto" lang="eo" hreflang="eo" data-title="Tereca planedo" 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_terrestre" title="Planeta terrestre - spagnolo" lang="es" hreflang="es" data-title="Planeta terrestre" 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/Maa_t%C3%BC%C3%BCpi_planeedid" title="Maa tüüpi planeedid - estone" lang="et" hreflang="et" data-title="Maa tüüpi planeedid" 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_teluriko" title="Planeta teluriko - basco" lang="eu" hreflang="eu" data-title="Planeta teluriko" 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_%D8%B2%D9%85%DB%8C%D9%86%E2%80%8C%D8%B3%D8%A7%D9%86" title="سیاره زمین‌سان - persiano" lang="fa" hreflang="fa" data-title="سیاره زمین‌سان" 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/Maankaltainen_planeetta" title="Maankaltainen planeetta - finlandese" lang="fi" hreflang="fi" data-title="Maankaltainen planeetta" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Plan%C3%A8te_tellurique" title="Planète tellurique - francese" lang="fr" hreflang="fr" data-title="Planète tellurique" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Terrestryske_planeet" title="Terrestryske planeet - frisone occidentale" lang="fy" hreflang="fy" data-title="Terrestryske planeet" 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/Pl%C3%A1in%C3%A9ad_domhanda" title="Pláinéad domhanda - irlandese" lang="ga" hreflang="ga" data-title="Pláinéad domhanda" 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_terrestre" title="Planeta terrestre - galiziano" lang="gl" hreflang="gl" data-title="Planeta terrestre" 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_itaguigua" title="Yvóra itaguigua - guaraní" lang="gn" hreflang="gn" data-title="Yvóra itaguigua" 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_ooirragh" title="Planaid ooirragh - mannese" lang="gv" hreflang="gv" data-title="Planaid ooirragh" 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%90%D7%A8%D7%A6%D7%99" title="כוכב לכת ארצי - ebraico" lang="he" hreflang="he" data-title="כוכב לכת ארצי" 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%B8%E0%A5%8D%E0%A4%A5%E0%A4%B2%E0%A5%80%E0%A4%AF_%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="स्थलीय ग्रह - hindi" lang="hi" hreflang="hi" data-title="स्थलीय ग्रह" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Terestri%C4%8Dki_planet" title="Terestrički planet - croato" lang="hr" hreflang="hr" data-title="Terestrički 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/K%C5%91zetbolyg%C3%B3" title="Kőzetbolygó - ungherese" lang="hu" hreflang="hu" data-title="Kőzetbolygó" 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%B5%D6%80%D5%AF%D6%80%D5%A1%D5%B5%D5%AB%D5%B6_%D5%AD%D5%B4%D5%A2%D5%AB_%D5%B4%D5%B8%D5%AC%D5%B8%D6%80%D5%A1%D5%AF%D5%B6%D5%A5%D6%80" title="Երկրային խմբի մոլորակներ - armeno" lang="hy" hreflang="hy" data-title="Երկրային խմբի մոլորակներ" 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_terrestre" title="Planeta terrestre - interlingua" lang="ia" hreflang="ia" data-title="Planeta terrestre" 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_kebumian" title="Planet kebumian - indonesiano" lang="id" hreflang="id" data-title="Planet kebumian" 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-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%9C%B0%E7%90%83%E5%9E%8B%E6%83%91%E6%98%9F" title="地球型惑星 - giapponese" lang="ja" hreflang="ja" data-title="地球型惑星" 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-jv mw-list-item"><a href="https://jv.wikipedia.org/wiki/Planit_jero" title="Planit jero - giavanese" lang="jv" hreflang="jv" data-title="Planit jero" 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%93%E1%83%94%E1%83%93%E1%83%90%E1%83%9B%E1%83%98%E1%83%AC%E1%83%98%E1%83%A1_%E1%83%AF%E1%83%92%E1%83%A3%E1%83%A4%E1%83%98%E1%83%A1_%E1%83%9E%E1%83%9A%E1%83%90%E1%83%9C%E1%83%94%E1%83%A2%E1%83%94%E1%83%91%E1%83%98" title="დედამიწის ჯგუფის პლანეტები - georgiano" lang="ka" hreflang="ka" data-title="დედამიწის ჯგუფის პლანეტები" 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_anamur" title="Amtiweg anamur - cabilo" lang="kab" hreflang="kab" data-title="Amtiweg anamur" data-language-autonym="Taqbaylit" data-language-local-name="cabilo" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A7%80%EA%B5%AC%ED%98%95_%ED%96%89%EC%84%B1" title="지구형 행성 - coreano" lang="ko" hreflang="ko" data-title="지구형 행성" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Planeta_terrestris" title="Planeta terrestris - latino" lang="la" hreflang="la" data-title="Planeta terrestris" 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/%C3%84erd%C3%A4nleche_Plan%C3%A9it" title="Äerdänleche Planéit - lussemburghese" lang="lb" hreflang="lb" data-title="Äerdänleche Planéit" data-language-autonym="Lëtzebuergesch" data-language-local-name="lussemburghese" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Pian%C3%A9t_ter%C3%A8ster" title="Pianét terèster - lombardo" lang="lmo" hreflang="lmo" data-title="Pianét terèster" 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/%C5%BDem%C4%97s_grup%C4%97s_planetos" title="Žemės grupės planetos - lituano" lang="lt" hreflang="lt" data-title="Žemės grupės planetos" 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/Zemes_grupas_plan%C4%93tas" title="Zemes grupas planētas - lettone" lang="lv" hreflang="lv" data-title="Zemes grupas planētas" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%97%D0%B5%D0%BC%D1%98%D0%BE%D0%B2%D0%B8%D0%B4%D0%BD%D0%B0_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Земјовидна планета - macedone" lang="mk" hreflang="mk" data-title="Земјовидна 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%AD%E0%B5%82%E0%B4%B8%E0%B4%AE%E0%B4%BE%E0%B4%A8_%E0%B4%97%E0%B5%8D%E0%B4%B0%E0%B4%B9%E0%B4%99%E0%B5%8D%E0%B4%99%E0%B5%BE" title="ഭൂസമാന ഗ്രഹങ്ങൾ - malayalam" lang="ml" hreflang="ml" data-title="ഭൂസമാന ഗ്രഹങ്ങൾ" 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%A5%D3%A9%D1%80%D1%81%D1%82%D1%8D%D0%B9_%D0%B3%D0%B0%D1%80%D0%B0%D0%B3" title="Хөрстэй гараг - mongolo" lang="mn" hreflang="mn" data-title="Хөрстэй 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%96%E0%A4%A1%E0%A4%95%E0%A4%BE%E0%A4%B3_%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="खडकाळ ग्रह - marathi" lang="mr" hreflang="mr" data-title="खडकाळ ग्रह" 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_bumian" title="Planet bumian - malese" lang="ms" hreflang="ms" data-title="Planet bumian" 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-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Aardse_planeet" title="Aardse planeet - olandese" lang="nl" hreflang="nl" data-title="Aardse planeet" 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/Terrestrisk_planet" title="Terrestrisk planet - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Terrestrisk planet" 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/Terrestrisk_planet" title="Terrestrisk planet - norvegese bokmål" lang="nb" hreflang="nb" data-title="Terrestrisk planet" 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-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Planeta_tellurica" title="Planeta tellurica - occitano" lang="oc" hreflang="oc" data-title="Planeta tellurica" 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/Bakkallee_Akdachee" title="Bakkallee Akdachee - oromo" lang="om" hreflang="om" data-title="Bakkallee Akdachee" 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_skalista" title="Planeta skalista - polacco" lang="pl" hreflang="pl" data-title="Planeta skalista" 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_rocos" title="Pianeta rocos - piemontese" lang="pms" hreflang="pms" data-title="Pianeta rocos" 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%B2%D9%85%DB%8C%D9%86_%D9%88%D8%B1%DA%AF%D8%A7_%D9%BE%D8%A7%D9%86%D8%AF%DA%BE%DB%8C" title="زمین ورگا پاندھی - Western Punjabi" lang="pnb" hreflang="pnb" data-title="زمین ورگا پاندھی" 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/%DA%81%D9%85%DA%A9%D9%86%DB%8D_%D8%B3%D9%8A%D8%A7%D8%B1%D9%87" title="ځمکنۍ سياره - pashto" lang="ps" hreflang="ps" data-title="ځمکنۍ سياره" 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_tel%C3%BArico" title="Planeta telúrico - portoghese" lang="pt" hreflang="pt" data-title="Planeta telúrico" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Planet%C4%83_teluric%C4%83" title="Planetă telurică - rumeno" lang="ro" hreflang="ro" data-title="Planetă telurică" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru badge-Q70894304 mw-list-item" title=""><a href="https://ru.wikipedia.org/wiki/%D0%97%D0%B5%D0%BC%D0%BB%D0%B5%D0%BF%D0%BE%D0%B4%D0%BE%D0%B1%D0%BD%D0%B0%D1%8F_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Землеподобная планета - russo" lang="ru" hreflang="ru" data-title="Землеподобная планета" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Terrestrial_planet" title="Terrestrial planet - scozzese" lang="sco" hreflang="sco" data-title="Terrestrial planet" data-language-autonym="Scots" data-language-local-name="scozzese" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Terestri%C4%8Dka_planeta" title="Terestrička planeta - serbo-croato" lang="sh" hreflang="sh" data-title="Terestrička 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%B6%B7%E0%B7%9E%E0%B6%B8%E0%B7%92%E0%B6%9A_%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="භෞමික ග්‍රහලෝක - singalese" lang="si" hreflang="si" data-title="භෞමික 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/Terrestrial_planet" title="Terrestrial planet - Simple English" lang="en-simple" hreflang="en-simple" data-title="Terrestrial 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/Terestri%C3%A1lna_plan%C3%A9ta" title="Terestriálna planéta - slovacco" lang="sk" hreflang="sk" data-title="Terestriálna 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/Zemeljski_planet" title="Zemeljski planet - sloveno" lang="sl" hreflang="sl" data-title="Zemeljski planet" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-smn mw-list-item"><a href="https://smn.wikipedia.org/wiki/Ke%C4%91giplaaneet" title="Keđgiplaaneet - sami di Inari" lang="smn" hreflang="smn" data-title="Keđgiplaaneet" data-language-autonym="Anarâškielâ" data-language-local-name="sami di Inari" class="interlanguage-link-target"><span>Anarâškielâ</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Meere_Dhagaxley" title="Meere Dhagaxley - somalo" lang="so" hreflang="so" data-title="Meere Dhagaxley" data-language-autonym="Soomaaliga" data-language-local-name="somalo" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A2%D0%B5%D1%80%D0%B5%D1%81%D1%82%D1%80%D0%B8%D1%87%D0%BA%D0%B0_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Терестричка планета - serbo" lang="sr" hreflang="sr" data-title="Терестричка 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-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Stenplanet" title="Stenplanet - svedese" lang="sv" hreflang="sv" data-title="Stenplanet" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AA%E0%AF%81%E0%AE%B5%E0%AE%BF%E0%AE%AF%E0%AF%8A%E0%AE%A4%E0%AF%8D%E0%AE%A4_%E0%AE%95%E0%AF%8B%E0%AE%B3%E0%AF%8D" title="புவியொத்த கோள் - tamil" lang="ta" hreflang="ta" data-title="புவியொத்த கோள்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</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%B8%84%E0%B8%A5%E0%B9%89%E0%B8%B2%E0%B8%A2%E0%B9%82%E0%B8%A5%E0%B8%81" title="ดาวเคราะห์คล้ายโลก - thailandese" lang="th" hreflang="th" data-title="ดาวเคราะห์คล้ายโลก" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Mga_planetang_terestrial" title="Mga planetang terestrial - tagalog" lang="tl" hreflang="tl" data-title="Mga planetang terestrial" 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/Karasal_gezegen" title="Karasal gezegen - turco" lang="tr" hreflang="tr" data-title="Karasal 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/%D2%96%D0%B8%D1%80%D1%81%D1%8B%D0%BC%D0%B0%D0%BD_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0%D0%BB%D0%B0%D1%80" title="Җирсыман планеталар - tataro" lang="tt" hreflang="tt" data-title="Җирсыман планеталар" 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-uk badge-Q70893996 mw-list-item" title=""><a href="https://uk.wikipedia.org/wiki/%D0%97%D0%B5%D0%BC%D0%BB%D0%B5%D0%BF%D0%BE%D0%B4%D1%96%D0%B1%D0%BD%D0%B0_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Землеподібна планета - ucraino" lang="uk" hreflang="uk" data-title="Землеподібна 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%B2%D9%85%DB%8C%D9%86%DB%8C_%D8%B3%DB%8C%D8%A7%D8%B1%DB%81" title="زمینی سیارہ - urdu" lang="ur" hreflang="ur" data-title="زمینی 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/Ichki_sayyoralar" title="Ichki sayyoralar - uzbeco" lang="uz" hreflang="uz" data-title="Ichki sayyoralar" 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_terestre" title="Pianeta terestre - veneto" lang="vec" hreflang="vec" data-title="Pianeta terestre" 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_%C4%91%E1%BA%A5t_%C4%91%C3%A1" title="Hành tinh đất đá - vietnamita" lang="vi" hreflang="vi" data-title="Hành tinh đất đá" 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/Planeta_terrestre" title="Planeta terrestre - waray" lang="war" hreflang="war" data-title="Planeta terrestre" 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%B1%BB%E5%9C%B0%E8%A1%8C%E6%98%9F" title="类地行星 - wu" lang="wuu" hreflang="wuu" data-title="类地行星" 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-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%A2%D7%A8%D7%93%D7%99%D7%A9%D7%A2%D7%A8_%D7%A4%D7%9C%D7%90%D7%A0%D7%A2%D7%98" title="ערדישער פלאנעט - yiddish" lang="yi" hreflang="yi" data-title="ערדישער פלאנעט" data-language-autonym="ייִדיש" data-language-local-name="yiddish" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li 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class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q128207" title="Collegamento all'elemento connesso dell'archivio dati [g]" accesskey="g"><span>Elemento Wikidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div 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"><span class="mw-redirectedfrom">(Reindirizzamento da <strong><a href="/w/index.php?title=Pianeta_roccioso&redirect=no" class="mw-redirect" title="Pianeta roccioso">Pianeta roccioso</a></strong>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Terrestrial_planet_sizes.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/25/Terrestrial_planet_sizes.jpg/400px-Terrestrial_planet_sizes.jpg" decoding="async" width="400" height="173" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/25/Terrestrial_planet_sizes.jpg/600px-Terrestrial_planet_sizes.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/25/Terrestrial_planet_sizes.jpg/800px-Terrestrial_planet_sizes.jpg 2x" data-file-width="5208" data-file-height="2251" /></a><figcaption>I quattro pianeti rocciosi del Sistema solare in un fotomontaggio che ne rispetta le proporzioni dei diametri ma non le distanze. Da sinistra a destra: <a href="/wiki/Mercurio_(astronomia)" title="Mercurio (astronomia)">Mercurio</a>, <a href="/wiki/Venere_(astronomia)" title="Venere (astronomia)">Venere</a>, la <a href="/wiki/Terra" title="Terra">Terra</a> e <a href="/wiki/Marte_(astronomia)" title="Marte (astronomia)">Marte</a>.</figcaption></figure> <p>Un <b>pianeta terrestre</b> (detto anche <b>pianeta roccioso</b> o <b>pianeta tellurico</b>) è un <a href="/wiki/Pianeta" title="Pianeta">pianeta</a> composto perlopiù da <a href="/wiki/Roccia" title="Roccia">roccia</a> e <a href="/wiki/Metallo" title="Metallo">metalli</a>.<sup id="cite_ref-Arnett_1-0" class="reference"><a href="#cite_note-Arnett-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Il termine deriva direttamente dal nome del nostro pianeta, <a href="/wiki/Terra" title="Terra">Terra</a>, ed è stato adottato per indicare i pianeti del <a href="/wiki/Sistema_solare_interno" title="Sistema solare interno">sistema solare interno</a> in contrapposizione ai pianeti del <a href="/wiki/Sistema_solare_esterno" title="Sistema solare esterno">sistema solare esterno</a> detti <a href="/wiki/Gigante_gassoso" title="Gigante gassoso">giganti gassosi</a> (o pianeti gassosi), che invece sono pianeti privi di una superficie solida, composti da una combinazione di <a href="/wiki/Idrogeno" title="Idrogeno">idrogeno</a>, <a href="/wiki/Elio" title="Elio">elio</a> e <a href="/wiki/Acqua" title="Acqua">acqua</a> in varie combinazioni di <a href="/wiki/Gas" title="Gas">gas</a> e liquido. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Struttura">Struttura</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_terrestre&veaction=edit&section=1" title="Modifica la sezione Struttura" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_terrestre&action=edit&section=1" title="Edit section's source code: Struttura"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Terrestial_Planets_internal_it.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Terrestial_Planets_internal_it.png/400px-Terrestial_Planets_internal_it.png" decoding="async" width="400" height="107" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Terrestial_Planets_internal_it.png/600px-Terrestial_Planets_internal_it.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Terrestial_Planets_internal_it.png/800px-Terrestial_Planets_internal_it.png 2x" data-file-width="3373" data-file-height="900" /></a><figcaption>La struttura interna dei pianeti terrestri e della <a href="/wiki/Luna" title="Luna">Luna</a>.</figcaption></figure> <p>I pianeti terrestri hanno sempre la stessa struttura generale: un <a href="/wiki/Nucleo_(esogeologia)" title="Nucleo (esogeologia)">nucleo</a> centrale metallico, per la maggior parte di <a href="/wiki/Ferro" title="Ferro">ferro</a>, con un <a href="/wiki/Mantello_(esogeologia)" title="Mantello (esogeologia)">mantello</a> di <a href="/wiki/Silicato" title="Silicato">silicati</a>, e possibilmente una <a href="/wiki/Crosta_(esogeologia)" title="Crosta (esogeologia)">crosta</a>.<sup id="cite_ref-Head_2-0" class="reference"><a href="#cite_note-Head-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> La <a href="/wiki/Luna" title="Luna">Luna</a> è simile, ma potrebbe non avere un nucleo ferroso. Sulla superficie dei pianeti terrestri è possibile individuare strutture comuni come gole, <a href="/wiki/Cratere_meteoritico" title="Cratere meteoritico">crateri</a>, <a href="/wiki/Montagna" title="Montagna">montagne</a> e <a href="/wiki/Vulcano_(geologia)" class="mw-redirect" title="Vulcano (geologia)">vulcani</a>. Infine, i pianeti terrestri posseggono <a href="/wiki/Atmosfera" title="Atmosfera">atmosfere</a> secondarie<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> - atmosfere che sono originate da gas liberati per effetto del vulcanismo interno o in seguito ad impatti con corpi <a href="/wiki/Cometa" title="Cometa">cometari</a><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> - in opposizione ai giganti gassosi, che posseggono atmosfere primarie - atmosfere catturate direttamente dalla <a href="/wiki/Nebulosa_solare" title="Nebulosa solare">nebulosa solare</a> originaria.<sup id="cite_ref-Richmond_5-0" class="reference"><a href="#cite_note-Richmond-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p><p>Teoricamente, sono previste due tipologie di pianeti terrestri, una dominata dai composti del silicio e l'altra dai <a href="/wiki/Composti_del_carbonio" class="mw-redirect" title="Composti del carbonio">composti del carbonio</a>. I pianeti del Sistema solare appartengono tutti alla prima classe e solo alcuni <a href="/wiki/Asteroidi" class="mw-redirect" title="Asteroidi">asteroidi</a>, le <a href="/wiki/Condrite_carbonacea" class="mw-redirect" title="Condrite carbonacea">condriti carbonacee</a>, sono caratterizzati da una composizione che li accomuna alla seconda categoria.<sup id="cite_ref-Villard_6-0" class="reference"><a href="#cite_note-Villard-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Secondo quanto ipotizzato da Marc Kuchner e colleghi, i <a href="/wiki/Pianeta_di_carbonio" title="Pianeta di carbonio">pianeti di carbonio</a> potrebbero formarsi in un <a href="/wiki/Disco_protoplanetario" title="Disco protoplanetario">disco protoplanetario</a> ricco di tale elemento o povero di <a href="/wiki/Ossigeno" title="Ossigeno">ossigeno</a>.<sup id="cite_ref-Villard_6-1" class="reference"><a href="#cite_note-Villard-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Attorno ad un nucleo di ferro, si formerebbe un mantello di <a href="/wiki/Carburi" title="Carburi">carburi</a> e probabilmente <a href="/wiki/Grafite" title="Grafite">grafite</a>, entro cui, qualora le condizioni di pressione fossero rispettate, potrebbe formarsi uno strato ricco di <a href="/wiki/Diamante" title="Diamante">diamanti</a>.<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> Il pianeta potrebbe essere circondato da un'atmosfera secondaria, ricca di composti del carbonio.<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> </p> <div class="mw-heading mw-heading2"><h2 id="Pianeti_terrestri_del_Sistema_solare">Pianeti terrestri del Sistema solare</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_terrestre&veaction=edit&section=2" title="Modifica la sezione Pianeti terrestri del Sistema solare" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_terrestre&action=edit&section=2" title="Edit section's source code: Pianeti terrestri del Sistema solare"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Masses_of_terrestrial_planets.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Masses_of_terrestrial_planets.png/220px-Masses_of_terrestrial_planets.png" decoding="async" width="220" height="182" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Masses_of_terrestrial_planets.png/330px-Masses_of_terrestrial_planets.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/93/Masses_of_terrestrial_planets.png/440px-Masses_of_terrestrial_planets.png 2x" data-file-width="555" data-file-height="460" /></a><figcaption>Diagramma che mostra il rapporto tra la <a href="/wiki/Massa_(fisica)" title="Massa (fisica)">massa</a> posseduta dai singoli pianeti terrestri e dalla Luna rispetto alla loro massa complessiva.</figcaption></figure> <p>Il <a href="/wiki/Sistema_solare" title="Sistema solare">Sistema solare</a> conta quattro pianeti terrestri: <a href="/wiki/Mercurio_(astronomia)" title="Mercurio (astronomia)">Mercurio</a>, <a href="/wiki/Venere_(astronomia)" title="Venere (astronomia)">Venere</a>, la <a href="/wiki/Terra" title="Terra">Terra</a> e <a href="/wiki/Marte_(astronomia)" title="Marte (astronomia)">Marte</a>. È probabile che un tempo ne esistessero altri, ma la maggior parte sono stati espulsi dal Sistema tramite <a href="/wiki/Effetto_fionda" class="mw-redirect" title="Effetto fionda">effetti fionda</a> gravitazionali, o distrutti in seguito ad impatti. Si conosce un solo pianeta terrestre, la <a href="/wiki/Terra" title="Terra">Terra</a>, con un'<a href="/wiki/Idrosfera" title="Idrosfera">idrosfera</a> attiva. </p><p>I pianeti terrestri si trovano nella porzione interna del Sistema. Ciò non è un caso, infatti la maggiore temperatura, dovuta alla vicinanza del <a href="/wiki/Sole" title="Sole">Sole</a>, ha fatto sì che i componenti più leggeri delle loro atmosfere primitive (idrogeno ed elio) si disperdessero nello spazio, raggiungendo la <a href="/wiki/Velocit%C3%A0_di_fuga" title="Velocità di fuga">velocità di fuga</a> dal pianeta. La loro posizione determina inoltre <a href="/wiki/Temperatura" title="Temperatura">temperature</a> superficiali relativamente alte e <a href="/wiki/Moto_di_rivoluzione" title="Moto di rivoluzione">moti di rivoluzione</a> più veloci rispetto ai pianeti giganti del Sistema solare esterno, mentre quelli di <a href="/wiki/Moto_di_rotazione" class="mw-redirect" title="Moto di rotazione">rotazione</a> sono più lenti.<sup id="cite_ref-Arnett_1-1" class="reference"><a href="#cite_note-Arnett-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Sono inoltre accomunati dall'assenza o basso numero di <a href="/wiki/Satelliti_naturali" class="mw-redirect" title="Satelliti naturali">satelliti naturali</a> e da dimensioni relativamente piccole (meno di 15 000 chilometri di diametro).<sup id="cite_ref-Arnett_1-2" class="reference"><a href="#cite_note-Arnett-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>La <a href="/wiki/Luna" title="Luna">Luna</a>, <a href="/wiki/Io_(astronomia)" title="Io (astronomia)">Io</a> ed <a href="/wiki/Europa_(astronomia)" title="Europa (astronomia)">Europa</a> sono composte principalmente da roccia e sono considerati corpi di tipo terrestre,<sup id="cite_ref-Bless_9-0" class="reference"><a href="#cite_note-Bless-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> sebbene non pianeti dal momento che non orbitano direttamente attorno al Sole. La radiazione emessa da <a href="/wiki/Giove_(astronomia)" title="Giove (astronomia)">Giove</a> in formazione deve aver riscaldato un'estesa porzione del disco circumgioviano, determinando una composizione prevalentemente rocciosa per le due <a href="/wiki/Satellite_naturale" title="Satellite naturale">lune</a>, nonostante la loro formazione oltre il <a href="/wiki/Frost_line" title="Frost line">limite della neve</a> (<i>frost line</i>) del Sistema solare. </p><p>Secondo alcuni astronomi anche <a href="/wiki/Cerere_(astronomia)" title="Cerere (astronomia)">Cerere</a> è un significativo corpo di tipo terrestre,<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> sebbene non soddisfi le <a href="/wiki/Dominanza_orbitale" title="Dominanza orbitale">condizioni dinamiche</a> perché possa essere considerato un pianeta. Altri, invece, guidati soprattutto dal valore della sua densità, suggeriscono che possa presentare maggiori affinità con alcuni satelliti dei giganti gassosi.<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><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><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> La <a href="/wiki/Missione_Dawn" title="Missione Dawn">missione Dawn</a> della <a href="/wiki/NASA" title="NASA">NASA</a> che ha visitato Cerere nel 2015 ha raccolto dati che permettono di fare luce anche su questo aspetto. </p><p>La maggior parte degli <a href="/wiki/Asteroide" title="Asteroide">asteroidi</a> ha una composizione simile a quella dei pianeti rocciosi, ma non presentano una forma sferica, né hanno subito un processo di <a href="/wiki/Differenziazione_planetaria" title="Differenziazione planetaria">differenziazione interna</a> e non rientrano dunque nella lista dei corpi di tipo terrestre. </p><p>Infine, i corpi come <a href="/wiki/Plutone_(astronomia)" title="Plutone (astronomia)">Plutone</a>, <a href="/wiki/Ganimede_(astronomia)" title="Ganimede (astronomia)">Ganimede</a> e <a href="/wiki/Titano_(astronomia)" title="Titano (astronomia)">Titano</a> (alcuni studiosi includono nella lista anche Europa,<sup id="cite_ref-Gubbins_14-0" class="reference"><a href="#cite_note-Gubbins-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> considerato come un oggetto al limite tra le due categorie) presentano numerose caratteristiche che li accomunano ai pianeti terrestri, tra cui una superficie solida e una sottile atmosfera, ma sono composti principalmente da ghiacci di sostanze volatili e roccia<sup id="cite_ref-Gubbins_14-1" class="reference"><a href="#cite_note-Gubbins-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup><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> (come indicano i valori della densità, tipicamente compresi tra 1,5 e 2 g/cm³<sup id="cite_ref-Bless_9-1" class="reference"><a href="#cite_note-Bless-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>) perché si sono formati oltre il limite della neve del Sistema solare. Nonostante la differente composizione e struttura interna, alcuni astronomi li considerano corpi di tipo terrestre,<sup id="cite_ref-Richmond_5-1" class="reference"><a href="#cite_note-Richmond-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> altri hanno proposto classificazioni e designazioni alternative;<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> tra queste <a href="/wiki/Nana_di_ghiaccio" title="Nana di ghiaccio">nana di ghiaccio</a>, che non è stata accolta dall'<a href="/wiki/Unione_Astronomica_Internazionale" title="Unione Astronomica Internazionale">Unione Astronomica Internazionale</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Andamento_delle_densità"><span id="Andamento_delle_densit.C3.A0"></span>Andamento delle densità</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_terrestre&veaction=edit&section=3" title="Modifica la sezione Andamento delle densità" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_terrestre&action=edit&section=3" title="Edit section's source code: Andamento delle densità"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Not-planetary_terrestrial_bodies_comparison.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Not-planetary_terrestrial_bodies_comparison.JPG/220px-Not-planetary_terrestrial_bodies_comparison.JPG" decoding="async" width="220" height="209" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Not-planetary_terrestrial_bodies_comparison.JPG/330px-Not-planetary_terrestrial_bodies_comparison.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/9/90/Not-planetary_terrestrial_bodies_comparison.JPG 2x" data-file-width="400" data-file-height="380" /></a><figcaption>Alcuni corpi non planetari di tipo roccioso del Sistema solare: la <a href="/wiki/Luna" title="Luna">Luna</a>, <a href="/wiki/Io_(astronomia)" title="Io (astronomia)">Io</a>, <a href="/wiki/Europa_(astronomia)" title="Europa (astronomia)">Europa</a> e <a href="/wiki/Cerere_(astronomia)" title="Cerere (astronomia)">Cerere</a>. L'inserimento di Cerere nella lista è messo in discussione da alcuni studiosi.</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Comparing_the_size_of_Earth,_Mars,_and_exoplanets_of_Kepler-20_and_Kepler-42.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/62/Comparing_the_size_of_Earth%2C_Mars%2C_and_exoplanets_of_Kepler-20_and_Kepler-42.jpg/260px-Comparing_the_size_of_Earth%2C_Mars%2C_and_exoplanets_of_Kepler-20_and_Kepler-42.jpg" decoding="async" width="260" height="116" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/62/Comparing_the_size_of_Earth%2C_Mars%2C_and_exoplanets_of_Kepler-20_and_Kepler-42.jpg/390px-Comparing_the_size_of_Earth%2C_Mars%2C_and_exoplanets_of_Kepler-20_and_Kepler-42.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/62/Comparing_the_size_of_Earth%2C_Mars%2C_and_exoplanets_of_Kepler-20_and_Kepler-42.jpg/520px-Comparing_the_size_of_Earth%2C_Mars%2C_and_exoplanets_of_Kepler-20_and_Kepler-42.jpg 2x" data-file-width="5400" data-file-height="2400" /></a><figcaption>La Terra e Marte comparati con i pianeti dei sistemi di <a href="/wiki/Kepler-20" title="Kepler-20">Kepler-20</a> e <a href="/wiki/Kepler-42" title="Kepler-42">Kepler-42</a>, i primi esopianeti scoperti delle dimensioni della Terra</figcaption></figure> <p>Confrontando la densità del corpo "non compresso"<sup id="cite_ref-uncompres_19-0" class="reference"><a href="#cite_note-uncompres-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> (o densità ridotta<sup id="cite_ref-Bless_9-2" class="reference"><a href="#cite_note-Bless-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>) dei pianeti terrestri del Sistema solare, di Cerere e degli altri due più grandi asteroidi del Sistema, con il valore del <a href="/wiki/Semiasse_maggiore" title="Semiasse maggiore">semiasse maggiore</a> dell'orbita, si osservano valori inferiori per la densità all'aumentare della distanza dal Sole.<sup id="cite_ref-Healy_20-0" class="reference"><a href="#cite_note-Healy-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> </p><p>La principale eccezione a tale regola è rappresentata dalla densità della Luna, inferiore al valore atteso. Ciò è dovuto all'anomalo processo che ha condotto alla sua <a href="/wiki/Formazione_della_Luna" title="Formazione della Luna">formazione</a>.<sup id="cite_ref-Healy_20-1" class="reference"><a href="#cite_note-Healy-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> Nella tabella sono riportati per completezza anche i dati relativi ad Io ed Europa. È ancora da verificare se questo andamento è valido anche per i pianeti extrasolari. </p> <table class="wikitable sortable"> <tbody><tr> <th>corpo celeste </th> <th>massa<br />(<a href="/wiki/Massa_terrestre" title="Massa terrestre">M<sub><style data-mw-deduplicate="TemplateStyles:r107150125">'"`UNIQ--templatestyles-0000001D-QINU`"'</style><span class="Unicode" style="font-family:Antinoou, Code2000, Code2001, TITUS Cyberbit Basic, Doulos SIL, Chrysanthi Unicode, Arial Unicode MS, Bitstream Cyberbit, Bitstream Vera, Gentium, GentiumAlt, Lucida Sans Unicode, Noto Sans Mandaic, Penuturesu, Segoe UI Symbol; font-family :inherit;">⊕</span></sub></a>) </th> <th>raggio medio<br />(<a href="/wiki/Raggio_terrestre" title="Raggio terrestre">R<sub><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r107150125"><span class="Unicode" style="font-family:Antinoou, Code2000, Code2001, TITUS Cyberbit Basic, Doulos SIL, Chrysanthi Unicode, Arial Unicode MS, Bitstream Cyberbit, Bitstream Vera, Gentium, GentiumAlt, Lucida Sans Unicode, Noto Sans Mandaic, Penuturesu, Segoe UI Symbol; font-family :inherit;">⊕</span></sub></a>) </th> <th><a href="/wiki/Densit%C3%A0" title="Densità">densità media</a><br />(g/cm³) </th> <th>densità ridotta<sup id="cite_ref-uncompres_19-1" class="reference"><a href="#cite_note-uncompres-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup><br />(g/cm³) </th> <th><a href="/wiki/Semiasse_maggiore" title="Semiasse maggiore">semiasse maggiore</a><br />(<a href="/wiki/Unit%C3%A0_astronomica" title="Unità astronomica">UA</a>) </th> <th>temperatura <p>(K) </p> </th> <th>pressione atmosferica <p>(bar) </p> </th></tr> <tr> <td><a href="/wiki/Mercurio_(astronomia)" title="Mercurio (astronomia)">Mercurio</a> </td> <td align="center">0,053 </td> <td align="center">0,3825 </td> <td align="center">5,4 </td> <td align="center">5,3 </td> <td align="center">0,39 </td> <td align="center">440 </td> <td align="center">0,005 </td></tr> <tr> <td><a href="/wiki/Venere_(astronomia)" title="Venere (astronomia)">Venere</a> </td> <td align="center">0,815 </td> <td align="center">0,9488 </td> <td align="center">5,2 </td> <td align="center">4,4 - 3,95<sup id="cite_ref-Bless_9-3" class="reference"><a href="#cite_note-Bless-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td align="center">0,72 </td> <td align="center">737 </td> <td align="center">92 </td></tr> <tr> <td><a href="/wiki/Terra" title="Terra">Terra</a> </td> <td align="center">1 </td> <td align="center">1 </td> <td align="center">5,5 </td> <td align="center">4,4 - 4,03<sup id="cite_ref-Bless_9-4" class="reference"><a href="#cite_note-Bless-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td align="center">1,0 </td> <td align="center">288/323 </td> <td align="center">1 </td></tr> <tr> <td><a href="/wiki/Luna" title="Luna">Luna</a> </td> <td align="center">0,012 </td> <td align="center">0,2726 </td> <td align="center">3,3 </td> <td align="center">3,3 </td> <td align="center">1,0 </td> <td align="center">250 </td> <td align="center">tracce </td></tr> <tr> <td><a href="/wiki/Marte_(astronomia)" title="Marte (astronomia)">Marte</a> </td> <td align="center">0,107 </td> <td align="center">0,53226 </td> <td align="center">3,9 </td> <td align="center">3,8 - 3,71<sup id="cite_ref-Bless_9-5" class="reference"><a href="#cite_note-Bless-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td align="center">1,5 </td> <td align="center">148/300 </td> <td align="center">0.00636 </td></tr> <tr> <td><a href="/wiki/4_Vesta" title="4 Vesta">Vesta</a> </td> <td align="center">4,5×10<sup>−5</sup> </td> <td align="center">0,0414 </td> <td align="center">3,4 </td> <td align="center">3,4 </td> <td align="center">2,3 </td> <td align="center">82/255 </td> <td align="center">assente </td></tr> <tr> <td><a href="/wiki/2_Pallas" title="2 Pallas">Pallade</a> </td> <td align="center">3,6×10<sup>−5</sup> </td> <td align="center">0,0417 </td> <td align="center">2,8 </td> <td align="center">2,8 </td> <td align="center">2,8 </td> <td align="center">165 </td> <td align="center">tracce </td></tr> <tr> <td><a href="/wiki/Cerere_(astronomia)" title="Cerere (astronomia)">Cerere</a> </td> <td align="center">1,59×10<sup>−4</sup> </td> <td align="center">0,076 </td> <td align="center">2,1 </td> <td align="center">2,1 </td> <td align="center">2,8 </td> <td align="center">167 </td> <td align="center">assente </td></tr> <tr> <td><a href="/wiki/Europa_(astronomia)" title="Europa (astronomia)">Europa</a> </td> <td align="center">0,008 </td> <td align="center">0,2460 </td> <td align="center">3,96 </td> <td align="center">3,96<sup id="cite_ref-Bless_9-6" class="reference"><a href="#cite_note-Bless-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td align="center">5,2 </td> <td align="center">103 </td> <td align="center">0,00000000001 </td></tr> <tr> <td><a href="/wiki/Io_(astronomia)" title="Io (astronomia)">Io</a> </td> <td align="center">0,015 </td> <td align="center">0,2845 </td> <td align="center">3,55 </td> <td align="center">3,55<sup id="cite_ref-Bless_9-7" class="reference"><a href="#cite_note-Bless-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td align="center">5,2 </td> <td align="center">130 </td> <td align="center">tracce </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Pianeti_terrestri_extrasolari">Pianeti terrestri extrasolari</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_terrestre&veaction=edit&section=4" title="Modifica la sezione Pianeti terrestri extrasolari" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_terrestre&action=edit&section=4" title="Edit section's source code: Pianeti terrestri extrasolari"><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/Super_Terra" title="Super Terra">Super Terra</a></b>.</span></div> </div> <p>È per il momento estremamente difficile osservare pianeti terrestri in orbita attorno ad altre <a href="/wiki/Stella" title="Stella">stelle</a>, perché sono troppo piccoli e vicini alla loro stella. Tutti i <a href="/wiki/Pianeta_extrasolare" title="Pianeta extrasolare">pianeti extrasolari</a> trovati sono in larga parte giganti gassosi, mentre quelli rocciosi rientrano nella definizione di "<a href="/wiki/Super_Terra" title="Super Terra">Super Terra</a>", ben più grandi di un pianeta simile alla Terra propriamente detto. Sono però in fase di sviluppo numerosi nuovi <a href="/wiki/Telescopio" title="Telescopio">telescopi</a> che dovrebbero poter <a href="/wiki/Risoluzione_(grafica)" title="Risoluzione (grafica)">risolvere</a> anche pianeti di tipo terrestre. </p><p>Pianeti con dimensioni paragonabili a quelle della Terra furono scoperti per la prima volta attorno alla <a href="/wiki/Pulsar" title="Pulsar">pulsar</a> <a href="/wiki/PSR_B1257%2B12A" title="PSR B1257+12A">PSR B1257+12A</a>. Quando invece fu scoperto <a href="/wiki/51_Pegasi_b" title="51 Pegasi b">51 Pegasi b</a>, il primo pianeta in orbita a una stella di <a href="/wiki/Sequenza_principale" title="Sequenza principale">sequenza principale</a>, si pensava che potesse essere una enorme Terra; essendo vicinissimo alla sua stella madre gli astronomi credevano che un gigante gassoso non avrebbe potuto esistere o almeno restare tale. Tuttavia, la successiva scoperta di altri pianeti simili, dei quali si è potuta stimare sia la dimensione che la massa, hanno dimostrato che oggetti simili erano veramente giganti gassosi. Si dovette attendere fino al 2005 per scoprire la prima super-Terra, <a href="/wiki/Gliese_876_d" title="Gliese 876 d">Gliese 876 d</a>, con una massa meno di 10 volte superiore a quella del nostro pianeta, e che orbitava in appena due giorni attorno a una piccola <a href="/wiki/Nana_rossa" title="Nana rossa">nana rossa</a>. Il raggio del pianeta tuttavia non era conosciuto, in quanto era stato scoperto con il <a href="/wiki/Metodo_della_velocit%C3%A0_radiale" class="mw-redirect" title="Metodo della velocità radiale">metodo della velocità radiale</a>. Quando fu scoperto il <a href="/wiki/Sistema_planetario" title="Sistema planetario">sistema planetario</a> di <a href="/wiki/Gliese_581" title="Gliese 581">Gliese 581</a>, con una super-Terra all'interno della <a href="/wiki/Zona_abitabile" title="Zona abitabile">zona abitabile</a>, gli scienziati cominciarono a puntare le ricerche in particolar modo ai pianeti terrestri posti alla giusta distanza della propria stella madre, che potessero avere somiglianza con la Terra non solo nelle dimensioni, ma anche nelle condizioni atmosferiche e superficiali. </p><p>La <a href="/wiki/Missione_Kepler" title="Missione Kepler">Missione Kepler</a>, iniziata nel 2006, ha come obiettivo la ricerca di pianeti terrestri attorno a stelle simili al Sole, osservando i loro <a href="/wiki/Transito_(astronomia)" title="Transito (astronomia)">transiti</a> davanti alla stella madre. Il <a href="/wiki/Telescopio_spaziale" title="Telescopio spaziale">telescopio spaziale</a> Kepler ha scoperto molti pianeti con dimensioni simili alla Terra, con raggi di poco superiori, e in alcuni casi, ha individuato perfino pianeti più piccoli della Terra, come quelli che orbitano attorno a <a href="/wiki/Kepler-42" title="Kepler-42">Kepler-42</a> o <a href="/wiki/Kepler-20_e" title="Kepler-20 e">Kepler-20 e</a>, il primo esopianeta scoperto più piccolo della Terra che orbita attorno a una <a href="/wiki/Analogo_solare" title="Analogo solare">stella di tipo solare</a>. </p><p>Nella lista sottostante, sono elencati alcuni dei pianeti che, per raggio e massa, sono più simili al nostro pianeta. Nella lista non sono compresi quelli della pulsar PSR B1257+12A, così come sono esclusi quelli orbitanti attorno <a href="/wiki/Kepler-70" title="Kepler-70">Kepler-70</a>, in quanto essi, seppur di dimensioni terrestri, altro non sono che i nuclei di giganti gassosi, evaporati durante la fase di <a href="/wiki/Gigante_rossa" title="Gigante rossa">gigante rossa</a> della propria stella, o i cui strati più esterni sono stati spazzati via, nel caso della pulsar, dall'esplosione in <a href="/wiki/Supernova" title="Supernova">supernova</a> della stella morente. </p> <table class="wikitable sortable"> <tbody><tr> <th>Nome pianeta </th> <th>Distanza <br />(<a href="/wiki/Anni_luce" class="mw-redirect" title="Anni luce">a.l.</a>) </th> <th>Massa <br />(<a href="/wiki/Massa_terrestre" title="Massa terrestre">M<sub>⊕</sub></a>) </th> <th>Raggio <br />(<a href="/wiki/Raggio_terrestre" title="Raggio terrestre">R<sub>⊕</sub></a>) </th> <th>Scoperta </th> <th class="unsortable">Note </th></tr> <tr> <td><a href="/wiki/CoRoT-7_b" title="CoRoT-7 b">CoRoT-7 b</a> </td> <td style="text-align:center">489 </td> <td style="text-align:center">8,0 ± 1,2 </td> <td style="text-align:center">1,58 </td> <td>2009 </td> <td>Molto vicino alla stella; ha un <a href="/wiki/Periodo_orbitale" class="mw-redirect" title="Periodo orbitale">periodo orbitale</a> di sole 20 ore<sup id="cite_ref-Bruntt_21-0" class="reference"><a href="#cite_note-Bruntt-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Gliese_581_e" title="Gliese 581 e">Gliese 581 e</a> </td> <td style="text-align:center">20,5 </td> <td style="text-align:center">>1,7 </td> <td style="text-align:center">- </td> <td>2009 </td> <td>Uno dei meno massicci conosciuti<sup id="cite_ref-bbc_22-0" class="reference"><a href="#cite_note-bbc-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Kepler-10_b" title="Kepler-10 b">Kepler-10 b</a> </td> <td style="text-align:center">564 </td> <td style="text-align:center">4,6 </td> <td style="text-align:center">1,4 </td> <td>2011 </td> <td>Temperatura superficiale oltre i 1800 <a href="/wiki/Kelvin" title="Kelvin">K</a><sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Kepler-20_e" title="Kepler-20 e">Kepler-20 e</a> </td> <td style="text-align:center">945 </td> <td style="text-align:center">da 0,39 a 1,67 </td> <td style="text-align:center">0,87 </td> <td>2011 </td> <td>Temperatura superficiale oltre i 1000 <a href="/wiki/Kelvin" title="Kelvin">K</a><sup id="cite_ref-exoplanet_24-0" class="reference"><a href="#cite_note-exoplanet-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Kepler-20_f" title="Kepler-20 f">Kepler-20 f</a> </td> <td style="text-align:center">945 </td> <td style="text-align:center">da 0,66 a 3,04 </td> <td style="text-align:center">1,03 </td> <td>2011 </td> <td>Temperatura superficiale: 700 K<sup id="cite_ref-exoplanet_24-1" class="reference"><a href="#cite_note-exoplanet-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Kepler-36_b&action=edit&redlink=1" class="new" title="Kepler-36 b (la pagina non esiste)">Kepler-36 b</a> </td> <td style="text-align:center">1425 </td> <td style="text-align:center">4,28 </td> <td style="text-align:center">1,51 </td> <td>2011 </td> <td><sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Kepler-37_b" title="Kepler-37 b">Kepler-37 b</a> </td> <td style="text-align:center">215 </td> <td style="text-align:center">>0,01 </td> <td style="text-align:center">0,303 </td> <td>2013 </td> <td>Al 2013, il pianeta più piccolo e meno massiccio conosciuto.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Kepler-37_c" title="Kepler-37 c">Kepler-37 c</a> </td> <td style="text-align:center">215 </td> <td style="text-align:center">- </td> <td style="text-align:center">0,742 </td> <td>2013 </td> <td> </td></tr> <tr> <td><a href="/w/index.php?title=Kepler-42_c&action=edit&redlink=1" class="new" title="Kepler-42 c (la pagina non esiste)">Kepler-42 c</a> </td> <td style="text-align:center">126 </td> <td style="text-align:center">>1,91 </td> <td style="text-align:center">0,73 </td> <td>2012 </td> <td><sup id="cite_ref-exo_27-0" class="reference"><a href="#cite_note-exo-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Kepler-42_b&action=edit&redlink=1" class="new" title="Kepler-42 b (la pagina non esiste)">Kepler-42 b</a> </td> <td style="text-align:center">126 </td> <td style="text-align:center">>2,86 </td> <td style="text-align:center">0,78 </td> <td>2012 </td> <td><sup id="cite_ref-exo_27-1" class="reference"><a href="#cite_note-exo-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Kepler-42_d&action=edit&redlink=1" class="new" title="Kepler-42 d (la pagina non esiste)">Kepler-42 d</a> </td> <td style="text-align:center">126 </td> <td style="text-align:center">>0,95 </td> <td style="text-align:center">0,57 </td> <td>2012 </td> <td>Tra i più piccoli esopianeti conosciuti.<sup id="cite_ref-exo_27-2" class="reference"><a href="#cite_note-exo-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Kepler-54_c&action=edit&redlink=1" class="new" title="Kepler-54 c (la pagina non esiste)">Kepler-54 c</a> </td> <td style="text-align:center">1065 </td> <td style="text-align:center">1,53 </td> <td style="text-align:center">1,23 </td> <td>2012 </td> <td><sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Kepler-59_b&action=edit&redlink=1" class="new" title="Kepler-59 b (la pagina non esiste)">Kepler-59 b</a> </td> <td style="text-align:center">2648 </td> <td style="text-align:center">1,22 </td> <td style="text-align:center">1,1 </td> <td>2012 </td> <td><sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Kepler-65_b&action=edit&redlink=1" class="new" title="Kepler-65 b (la pagina non esiste)">Kepler-65 b</a> </td> <td style="text-align:center">804 </td> <td style="text-align:center">- </td> <td style="text-align:center">1,42 </td> <td>2012 </td> <td><sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Kepler-68_c&action=edit&redlink=1" class="new" title="Kepler-68 c (la pagina non esiste)">Kepler-68 c</a> </td> <td style="text-align:center">440 </td> <td style="text-align:center">4,8 </td> <td style="text-align:center">0,95 </td> <td>2012 </td> <td><sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Kepler-69_c" title="Kepler-69 c">Kepler-69 c</a> </td> <td style="text-align:center">1034 </td> <td style="text-align:center">- </td> <td style="text-align:center">1,54 </td> <td>2013 </td> <td>Orbita all'interno della <a href="/wiki/Zona_abitabile" title="Zona abitabile">zona abitabile</a><sup id="cite_ref-CalTech-KOI-172.02_32-0" class="reference"><a href="#cite_note-CalTech-KOI-172.02-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Tau_Ceti_e" title="Tau Ceti e">Tau Ceti e</a> * </td> <td style="text-align:center">11,8 </td> <td style="text-align:center">4,3 </td> <td style="text-align:center">- </td> <td>2012 </td> <td>Orbita all'interno della <a href="/wiki/Zona_abitabile" title="Zona abitabile">zona abitabile</a><sup id="cite_ref-Tuomi_33-0" class="reference"><a href="#cite_note-Tuomi-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> </td></tr></tbody></table> <p>* <i>Non ancora confermati</i>. </p> <div class="mw-heading mw-heading2"><h2 id="Tipi_di_pianeti_terrestri">Tipi di pianeti terrestri</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_terrestre&veaction=edit&section=5" title="Modifica la sezione Tipi di pianeti terrestri" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_terrestre&action=edit&section=5" title="Edit section's source code: Tipi di pianeti terrestri"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Planet_sizes_it.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Planet_sizes_it.svg/290px-Planet_sizes_it.svg.png" decoding="async" width="290" height="205" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Planet_sizes_it.svg/435px-Planet_sizes_it.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Planet_sizes_it.svg/580px-Planet_sizes_it.svg.png 2x" data-file-width="1052" data-file-height="744" /></a><figcaption>Raffronto tra le diverse dimensioni che pianeti di massa pari a quella della Terra o cinque volte tale valore assumerebbero in funzione della loro composizione.<br /> <i>Legenda:</i> Fe – <i>pianeta ferroso;</i> SiO<sub>2</sub> – <i>pianeta di silicati;</i> C – <i>pianeta al carbonio;</i> H<sub>2</sub>O – <i>pianeta oceano;</i> CO – <i>pianeta di monossido di carbonio;</i> H – <i>pianeta di idrogeno (nano gassoso).</i></figcaption></figure> <p>Sono state proposte da vari gruppi di scienziati diversi tipi di pianeti terrestri, in base alle loro caratteristiche<sup id="cite_ref-34" class="reference"><a href="#cite_note-34"><span class="cite-bracket">[</span>34<span class="cite-bracket">]</span></a></sup>: </p> <dl><dt>Pianeta di silicio</dt> <dd>Come la Terra e gli altri pianeti interni del sistema solare, sono costituiti da un <a href="/wiki/Mantello_terrestre" title="Mantello terrestre">mantello</a> di <a href="/wiki/Silicati" class="mw-redirect" title="Silicati">silicati</a> con un nucleo metallico.</dd></dl> <dl><dt><a href="/wiki/Pianeta_di_ferro" title="Pianeta di ferro">Pianeta di ferro</a></dt> <dd>Un tipo di pianeta ipotizzato e costituito principalmente da <a href="/wiki/Ferro" title="Ferro">ferro</a>. Hanno un raggio minore rispetto agli altri pianeti terrestri di massa comparabile a quella della Terra. <a href="/wiki/Mercurio_(astronomia)" title="Mercurio (astronomia)">Mercurio</a> è il pianeta più somigliante a questo tipo, avendo un nucleo ferroso che costituisce il 60-70% della massa totale del pianeta.</dd></dl> <dl><dt><a href="/wiki/Pianeta_senza_nucleo" title="Pianeta senza nucleo">Pianeta senza nucleo</a></dt> <dd>Un ipotetico tipo di pianeti costituiti interamente da un mantello roccioso a base di silicati ma privo di un nucleo metallico.</dd></dl> <dl><dt><a href="/wiki/Pianeta_di_carbonio" title="Pianeta di carbonio">Pianeta di carbonio</a> (chiamato anche «pianeta di diamanti»)</dt> <dd>Tipo di pianeta teorico costituito prevalentemente di minerali a base di <a href="/wiki/Carbonio" title="Carbonio">carbonio</a>. Nel sistema solare non esistono pianeti al carbonio, ma solo <a href="/wiki/Asteroide_di_tipo_C" title="Asteroide di tipo C">asteroidi carboniosi</a>.</dd></dl> <dl><dt><a href="/wiki/Super_Terra" title="Super Terra">Super Terra</a></dt> <dd>Grossi pianeti rocciosi con masse intermedie tra quella terrestre e quella di <a href="/wiki/Nettuno_(astronomia)" title="Nettuno (astronomia)">Nettuno</a>. Il limite di massa superiore, oltre il quale un pianeta sarebbe probabilmente un gigante gassoso, è considerato attorno alle 10 <a href="/wiki/Massa_terrestre" title="Massa terrestre">M<sub>⊕</sub></a><sup id="cite_ref-Charbonneau-GJ1214b_35-0" class="reference"><a href="#cite_note-Charbonneau-GJ1214b-35"><span class="cite-bracket">[</span>35<span class="cite-bracket">]</span></a></sup>.</dd></dl> <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_terrestre&veaction=edit&section=6" 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_terrestre&action=edit&section=6" 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-Arnett-1"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Arnett_1-0">a</a></i></sup> <sup><i><a href="#cite_ref-Arnett_1-1">b</a></i></sup> <sup><i><a href="#cite_ref-Arnett_1-2">c</a></i></sup></span> <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>) Bill Arnett, <a rel="nofollow" class="external text" href="http://arc.iki.rssi.ru/nineplanets/overview.html#ter_p"><span style="font-style:italic;">An Overview of the Solar System</span></a>, su <span style="font-style:italic;">The Nine Planets</span>, 1998. <small>URL consultato il 30 settembre 2009</small>.</cite></span> </li> <li id="cite_note-Head-2"><a href="#cite_ref-Head_2-0"><b>^</b></a> <span class="reference-text"><cite class="citation cita" style="font-style:normal"><a href="#CITEREFHead">James W. 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McCord, Sotin, C., <a rel="nofollow" class="external text" href="http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005JGRE..11005009M&db_key=AST&data_type=HTML&format=&high=4165bf108506401"><span style="font-style:italic;">Ceres: Evolution and current state</span></a>, in <span style="font-style:italic;">Journal of Geophysical Research</span>, E5, 2005, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1029%2F2004JE002244">10.1029/2004JE002244</a>. <small>URL consultato il 30 settembre 2009</small>.</cite></span> </li> <li id="cite_note-13"><a href="#cite_ref-13"><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>) P.C. Thomas <i>et al.</i>, <a rel="nofollow" class="external text" href="https://oadoi.org/10.1038/nature03938"><span style="font-style:italic;">Differentiation of the asteroid Ceres as revealed by its shape</span></a>, in <span style="font-style:italic;">Nature</span>, vol. 437, 2005, pp. 224-226, <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%2Fnature03938">10.1038/nature03938</a>. <small>URL consultato il 30 settembre 2009</small>.</cite></span> </li> <li id="cite_note-Gubbins-14"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Gubbins_14-0">a</a></i></sup> <sup><i><a href="#cite_ref-Gubbins_14-1">b</a></i></sup></span> <span class="reference-text"><cite class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) David Gubbins, Herrero-Bervera, Emilio, <a rel="nofollow" class="external text" href="http://books.google.it/books?id=O-wA0ocxAiIC&pg=PA203#v=onepage&q=&f=false"><span style="font-style:italic;">Dynamos, Planetary and Satellite</span></a>, in <span style="font-style:italic;">Encyclopedia of geomagnetism and paleomagnetism</span>, Springer, 2007, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/978-1-4020-3992-8" title="Speciale:RicercaISBN/978-1-4020-3992-8">978-1-4020-3992-8</a>. <small>URL consultato il 30 settembre 2009</small>.</cite></span> </li> <li id="cite_note-15"><a href="#cite_ref-15"><b>^</b></a> <span class="reference-text"><cite class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; 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Bruntt <i>et al.</i>, <a rel="nofollow" class="external text" href="https://oadoi.org/10.1051/0004-6361/201014143"><span style="font-style:italic;">Improved stellar parameters of CoRoT-7</span></a>, in <span style="font-style:italic;">Astronomy and Astrophysics</span>, vol. 519, 2010, pp. A51, <a href="/wiki/Digital_object_identifier" title="Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://dx.doi.org/10.1051%2F0004-6361%2F201014143">10.1051/0004-6361/201014143</a>.</cite><a href="/wiki/ArXiv" title="ArXiv">arΧiv</a>:<a href="https://arxiv.org/abs/1005.3208" class="extiw" title="arxiv:1005.3208">1005.3208</a></span> </li> <li id="cite_note-bbc-22"><a href="#cite_ref-bbc_22-0"><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"> Rincon Paul, Amos Jonathan, <a rel="nofollow" class="external text" href="http://news.bbc.co.uk/1/hi/sci/tech/8008683.stm"><span style="font-style:italic;">Lightest exoplanet is discovered</span></a>, su <span style="font-style:italic;">news.bbc.co.uk</span>, <a href="/wiki/BBC" title="BBC">BBC</a>. <small>URL consultato il 21.04.2009</small>.</cite></span> </li> <li id="cite_note-23"><a href="#cite_ref-23"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.exoplanet.eu/star.php?st=Kepler-10">Star: Kepler-10</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20110121143507/http://exoplanet.eu/star.php?st=Kepler-10">Archiviato</a> il 21 gennaio 2011 in <a href="/wiki/Internet_Archive" title="Internet Archive">Internet Archive</a>. <a rel="nofollow" class="external text" href="http://www.exoplanet.eu/">Enciclopedia dei pianeti extrasolari</a></span> </li> <li id="cite_note-exoplanet-24"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-exoplanet_24-0">a</a></i></sup> <sup><i><a href="#cite_ref-exoplanet_24-1">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/20120119135819/http://exoplanet.eu/star.php?st=Kepler-20"><span style="font-style:italic;">Star : Kepler-20</span></a>, su <span style="font-style:italic;">exoplanet.eu</span>. <small>URL consultato il 3 aprile 2013</small> <small>(archiviato dall'<abbr title="http://exoplanet.eu/star.php?st=Kepler-20">url originale</abbr> il 19 gennaio 2012)</small>.</cite></span> </li> <li id="cite_note-25"><a href="#cite_ref-25"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://exoplanet.hanno-rein.de/system.html?id=Kepler-36%20c">Kepler-36</a> Open Exoplanet Catalogue</span> </li> <li id="cite_note-26"><a href="#cite_ref-26"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.slate.com/blogs/bad_astronomy/2013/02/20/smallest_exoplanet_kepler_37b_is_barely_bigger_than_earth_s_moon.html">Astronomers Find the Tiniest Exoplanet Yet</a> Slate.com</span> </li> <li id="cite_note-exo-27"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-exo_27-0">a</a></i></sup> <sup><i><a href="#cite_ref-exo_27-1">b</a></i></sup> <sup><i><a href="#cite_ref-exo_27-2">c</a></i></sup></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://voparis-exoplanet.obspm.fr/star.php?st=Kepler-42">Notes for Kepler 42</a></span> </li> <li id="cite_note-28"><a href="#cite_ref-28"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://exoplanet.hanno-rein.de/system.html?id=Kepler-54%20c">Kepler-54</a> Open Exoplanet Catalogue</span> </li> <li id="cite_note-29"><a href="#cite_ref-29"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://exoplanet.hanno-rein.de/system.html?id=Kepler-59%20c">Kepler-59</a> Open Exoplanet Catalogue</span> </li> <li id="cite_note-30"><a href="#cite_ref-30"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://exoplanet.hanno-rein.de/system.html?id=Kepler-65%20c">Kepler-65</a> Open Exoplanet Catalogue</span> </li> <li id="cite_note-31"><a href="#cite_ref-31"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://exoplanet.hanno-rein.de/system.html?id=Kepler-68%20c">Kepler-68</a> Open Exoplanet Catalogue</span> </li> <li id="cite_note-CalTech-KOI-172.02-32"><a href="#cite_ref-CalTech-KOI-172.02_32-0"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=KOI-172"><span style="font-style:italic;">NASA Exoplanet Archive-KOI-172.02</span></a>, su <span style="font-style:italic;">exoplanetarchive.ipac.caltech.edu</span>. <small>URL consultato l'11 gennaio 2013</small>.</cite></span> </li> <li id="cite_note-Tuomi-33"><a href="#cite_ref-Tuomi_33-0"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> M. Tuomi et al, <a rel="nofollow" class="external text" href="https://www.aanda.org/articles/aa/full_html/2013/03/aa20509-12/aa20509-12.html"><span style="font-style:italic;">Signals embedded in the radial velocity noise: Periodic variations in the τ Ceti velocities</span></a>, in <span style="font-style:italic;"><a href="/wiki/Astronomy_%26_Astrophysics" class="mw-redirect" title="Astronomy & Astrophysics">Astronomy & Astrophysics</a></span>.</cite> <a href="/wiki/ArXiv" title="ArXiv">arΧiv</a>:<a href="https://arxiv.org/abs/1212.4277" class="extiw" title="arxiv:1212.4277">1212.4277</a></span> </li> <li id="cite_note-34"><a href="#cite_ref-34"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.astrobio.net/pressrelease/2476/all-planets-possible"><span style="font-style:italic;">All Planets Possible</span></a>, su <span style="font-style:italic;">astrobio.net</span>, Astrobiology Magazine, 2007. <small>URL consultato il 3 aprile 2013</small>.</cite></span> </li> <li id="cite_note-Charbonneau-GJ1214b-35"><a href="#cite_ref-Charbonneau-GJ1214b_35-0"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> D. Charbonneau, Z. K. Berta, J. Irwin, <i>et al</i>, <a rel="nofollow" class="external text" href="https://www.nature.com/nature/journal/v462/n7275/full/nature08679.html"><span style="font-style:italic;">A super-Earth transiting a nearby low-mass star</span></a>, in <span style="font-style:italic;"><a href="/wiki/Nature" title="Nature">Nature</a></span>, vol. 462, 17 dicembre 2009, pp. 891–894, <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%2Fnature08679">10.1038/nature08679</a>, <a href="/wiki/PMID" title="PMID">PMID</a> <a rel="nofollow" class="external text" href="//www.ncbi.nlm.nih.gov/pubmed/20016595">20016595</a>. <small>URL consultato il 3 aprile 2013</small>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Bibliografia">Bibliografia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_terrestre&veaction=edit&section=7" title="Modifica la sezione Bibliografia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_terrestre&action=edit&section=7" title="Edit section's source code: Bibliografia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Geoff C. Brown, Mussett, Alan E., <a rel="nofollow" class="external text" href="http://books.google.it/books?id=Y5QVAAAAIAAJ&pg=PA83&dq=&f=false#v=onepage&q=&f=false"><span style="font-style:italic;">The terrestrial planets and the Moon</span></a>, in <span style="font-style:italic;">The inaccessible Earth</span>, 2ª ed., Taylor & Francis, 1981, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/978-0-04-550028-4" title="Speciale:RicercaISBN/978-0-04-550028-4">978-0-04-550028-4</a>. <small>URL consultato il 30 settembre 2009</small>.</cite></li> <li><cite id="CITEREFHead" class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) James W. Head III, <a rel="nofollow" class="external text" href="http://books.google.it/books?id=6uqfPYBdy0cC&pg=PA157#v=onepage&q=&f=false"><span style="font-style:italic;">Surfaces and Interiors of the Terrestrial Planets</span></a>, in J. Kelly Beatty, Carolyn Collins Petersen, Andrew Chaikin (a cura di), <span style="font-style:italic;">The new solar system</span>, Cambridge University Press, 1999, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/978-0-521-64587-4" title="Speciale:RicercaISBN/978-0-521-64587-4">978-0-521-64587-4</a>. <small>URL consultato il 30 settembre 2009</small>.</cite></li> <li><cite id="CITEREFBless" class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Robert C. Bless, <a rel="nofollow" class="external text" href="http://books.google.it/books?id=jC47sk3mfjcC&pg=PA605&dq=#v=onepage&q=&f=false"><span style="font-style:italic;">Solar-System Planetology</span></a>, in <span style="font-style:italic;">Discovering the cosmos</span>, University Science Books, 1996, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/978-0-935702-67-5" title="Speciale:RicercaISBN/978-0-935702-67-5">978-0-935702-67-5</a>. <small>URL consultato il 30 settembre 2009</small>.</cite></li> <li><cite class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Kathryn E. Fishbaugh <i>et al.</i>, <a rel="nofollow" class="external text" href="http://books.google.it/books?id=U1iOY_ObZ2UC&dq=%22terrestrial+planets%22&lr=&client=firefox-a&source=gbs_navlinks_s"><span style="font-style:italic;">Geology and Habitability of Terrestrial Planets</span></a>, Springer, 2007, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/978-0-387-74287-8" title="Speciale:RicercaISBN/978-0-387-74287-8">978-0-387-74287-8</a>. <small>URL consultato il 30 settembre 2009</small>.</cite></li> <li><cite class="citation libro" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) Neil McBride, Gilmour, Iain, <a rel="nofollow" class="external text" href="http://books.google.it/books?id=cO3OaBTYuEgC&dq=%22terrestrial+planets%22&lr=&client=firefox-a&source=gbs_navlinks_s"><span style="font-style:italic;">An introduction to the Solar System</span></a>, Cambridge University Press, 2004, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/978-0-521-54620-1" title="Speciale:RicercaISBN/978-0-521-54620-1">978-0-521-54620-1</a>. <small>URL consultato il 30 settembre 2009</small>.</cite></li></ul> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Pianeta_terrestre&veaction=edit&section=8" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Pianeta_terrestre&action=edit&section=8" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Gigante_gassoso" title="Gigante gassoso">Gigante gassoso</a></li> <li><a href="/wiki/Sistema_solare" title="Sistema solare">Sistema solare</a> <ul><li><a href="/wiki/Sistema_solare_interno" title="Sistema solare interno">Sistema solare interno</a></li> <li><a href="/wiki/Sistema_solare_esterno" title="Sistema solare esterno">Sistema solare esterno</a></li></ul></li> <li><a href="/wiki/Sole" title="Sole">Sole</a></li> <li><a href="/wiki/Super_Terra" title="Super Terra">Super Terra</a></li> <li><a href="/wiki/Terraformazione" title="Terraformazione">Terraformazione</a></li></ul> <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_terrestre&veaction=edit&section=9" 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_terrestre&action=edit&section=9" 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:Terrestrial planets"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Terrestrial_planets?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:Terrestrial_planets?uselang=it">pianeta terrestre</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_terrestre&veaction=edit&section=10" 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_terrestre&action=edit&section=10" 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>) <a rel="nofollow" class="external text" href="https://www.britannica.com/topic/terrestrial-planet"><span style="font-style:italic;">terrestrial 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/Q128207#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-Classificazione_dei_pianeti_extrasolari"><tbody><tr><th colspan="3"><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:Classificazione_dei_pianeti_extrasolari" title="Template:Classificazione dei pianeti extrasolari"><span title="Vai alla pagina del template">V</span></a> · <a href="/w/index.php?title=Discussioni_template:Classificazione_dei_pianeti_extrasolari&action=edit&redlink=1" class="new" title="Discussioni template:Classificazione dei pianeti extrasolari (la pagina non esiste)"><span title="Discuti del template">D</span></a> · <a class="external text" href="https://it.wikipedia.org/w/index.php?title=Template:Classificazione_dei_pianeti_extrasolari&action=edit"><span title="Modifica il template. Usa l'anteprima prima di salvare">M</span></a></div></div><span class="navbox_title">Classificazione dei <a href="/wiki/Pianeta_extrasolare" title="Pianeta extrasolare">pianeti extrasolari</a></span></th></tr><tr><th colspan="1" class="navbox_group"><a class="mw-selflink selflink">Pianeti terrestri</a></th><td colspan="1" class="navbox_list navbox_odd"><a href="/wiki/Analogo_terrestre" title="Analogo terrestre">Analogo terrestre</a><b> ·</b> <a href="/wiki/Pianeta_di_carbonio" title="Pianeta di carbonio">Pianeta di carbonio</a><b> ·</b> <a href="/wiki/Pianeta_ghiacciato" title="Pianeta ghiacciato">Pianeta ghiacciato</a><b> ·</b> <a href="/wiki/Pianeta_di_ferro" title="Pianeta di ferro">Pianeta di ferro</a><b> ·</b> <a href="/wiki/Pianeta_deserto" title="Pianeta deserto">Pianeta deserto</a><b> ·</b> <a href="/wiki/Pianeta_di_lava" title="Pianeta di lava">Pianeta di lava</a><b> ·</b> <a href="/wiki/Pianeta_senza_nucleo" title="Pianeta senza nucleo">Pianeta senza nucleo</a><b> ·</b> <a href="/wiki/Pianeta_oceanico" title="Pianeta oceanico">Pianeta oceanico</a><b> ·</b> <a href="/wiki/Pianeta_di_silicio" class="mw-redirect" title="Pianeta di silicio">Pianeta di silicio</a><b> ·</b> <a href="/wiki/Sub_Terra" title="Sub Terra">Sub Terra</a><b> ·</b> <a href="/wiki/Super_Terra" title="Super Terra">Super Terra</a><b> ·</b> <a href="/wiki/Mega_Terra" title="Mega Terra">Mega Terra</a><b> ·</b> <a href="/wiki/Earth_Similarity_Index" title="Earth Similarity Index">Earth Similarity Index</a></td><td rowspan="3" class="navbox_image"><span typeof="mw:File"><a href="/wiki/File:Hypothetical_exoplanet.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Hypothetical_exoplanet.jpg/115px-Hypothetical_exoplanet.jpg" decoding="async" width="115" height="86" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Hypothetical_exoplanet.jpg/173px-Hypothetical_exoplanet.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Hypothetical_exoplanet.jpg/230px-Hypothetical_exoplanet.jpg 2x" data-file-width="1280" data-file-height="960" /></a></span></td></tr><tr><th colspan="1" class="navbox_group"><a href="/wiki/Gigante_gassoso" title="Gigante gassoso">Giganti gassosi</a></th><td colspan="1" class="navbox_list navbox_even"><a href="/wiki/Pianeta_gioviano_caldo" title="Pianeta gioviano caldo">Gioviano caldo</a><b> ·</b> <a href="/wiki/Pianeta_nettuniano_caldo" title="Pianeta nettuniano caldo">Nettuniano caldo</a><b> ·</b> <a href="/wiki/Super_Giove" title="Super Giove">Super Giove</a><b> ·</b> <a href="/wiki/Mininettuno" title="Mininettuno">Mininettuno</a> (<a href="/wiki/Pianeta_hycean" title="Pianeta hycean">Pianeta hycean</a>)<b> ·</b> <a href="/wiki/Pianeta_ctonio" title="Pianeta ctonio">Pianeta ctonio</a><b> ·</b> <a href="/wiki/Gigante_ghiacciato" title="Gigante ghiacciato">Gigante ghiacciato</a><b> ·</b> <a href="/wiki/Pianeta_di_elio" title="Pianeta di elio">Pianeta di elio</a><b> ·</b> <a href="/wiki/Giove_eccentrico" title="Giove eccentrico">Giove eccentrico</a><b> ·</b> <a href="/wiki/Classificazione_di_Sudarsky" title="Classificazione di Sudarsky">Classificazione di Sudarsky</a></td></tr><tr><th colspan="1" class="navbox_group">Altri tipi</th><td colspan="1" class="navbox_list navbox_odd"><a href="/wiki/Protopianeta" title="Protopianeta">Protopianeta</a><b> ·</b> <a href="/wiki/Pianeta_circumbinario" title="Pianeta circumbinario">Pianeta circumbinario</a><b> ·</b> <a href="/wiki/Pianeta_doppio" title="Pianeta doppio">Pianeta doppio</a><b> ·</b> <a href="/wiki/Pianeti_delle_pulsar" title="Pianeti delle pulsar">Pianeti delle pulsar</a><b> ·</b> <a href="/wiki/Pianeta_interstellare" title="Pianeta interstellare">Pianeta interstellare</a><b> ·</b> <a href="/wiki/Pianeta_extragalattico" title="Pianeta extragalattico">Pianeta extragalattico</a><b> ·</b> <a href="/wiki/Sub-nana_bruna" title="Sub-nana bruna">Sub-nana bruna</a><b> ·</b> <a href="/wiki/Nana_bruna" title="Nana bruna">Nana bruna</a><b> ·</b> <a href="/wiki/Pianeta_Goldilocks" title="Pianeta Goldilocks">Pianeta Goldilocks</a><b> ·</b> <a href="/wiki/Satellite_extrasolare" title="Satellite extrasolare">Satellite extrasolare</a></td></tr></tbody></table> <div class="noprint" style="width:100%; 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