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id="toc-Giove_e_Saturno-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Urano_e_Nettuno" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Urano_e_Nettuno"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Urano e Nettuno</span> </div> </a> <ul id="toc-Urano_e_Nettuno-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Giganti_gassosi_extrasolari" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Giganti_gassosi_extrasolari"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Giganti gassosi extrasolari</span> </div> </a> <ul id="toc-Giganti_gassosi_extrasolari-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-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">6</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">7</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">8</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" title="Indice" > <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">Gigante gassoso</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 86 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-86" 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">86 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/Gasreus" title="Gasreus - afrikaans" lang="af" hreflang="af" data-title="Gasreus" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Gasriese" title="Gasriese - tedesco svizzero" lang="gsw" hreflang="gsw" data-title="Gasriese" data-language-autonym="Alemannisch" data-language-local-name="tedesco svizzero" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B9%D9%85%D9%84%D8%A7%D9%82_%D8%BA%D8%A7%D8%B2%D9%8A" title="عملاق غازي - arabo" lang="ar" hreflang="ar" data-title="عملاق غازي" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%B9%D9%85%D9%84%D8%A7%D9%82_%D8%BA%D8%A7%D8%B2%D9%8A" title="عملاق غازي - arabo marocchino" lang="ary" hreflang="ary" data-title="عملاق غازي" data-language-autonym="الدارجة" data-language-local-name="arabo marocchino" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Xigante_gaseosu" title="Xigante gaseosu - asturiano" lang="ast" hreflang="ast" data-title="Xigante gaseosu" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Qaz_n%C9%99h%C9%99ngi" title="Qaz nəhəngi - azerbaigiano" lang="az" hreflang="az" data-title="Qaz nəhəngi" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaigiano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%93%D0%B0%D0%B7%D0%B0%D0%B2%D1%8B%D1%8F_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D1%8B" title="Газавыя планеты - bielorusso" lang="be" hreflang="be" data-title="Газавыя планеты" data-language-autonym="Беларуская" data-language-local-name="bielorusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%93%D0%B0%D0%B7%D0%B0%D0%B2%D1%8B%D1%8F_%D0%BF%D0%BB%D1%8F%D0%BD%D1%8D%D1%82%D1%8B" title="Газавыя плянэты - Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Газавыя плянэты" 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%93%D0%B0%D0%B7%D0%BE%D0%B2_%D0%B3%D0%B8%D0%B3%D0%B0%D0%BD%D1%82" title="Газов гигант - bulgaro" lang="bg" hreflang="bg" data-title="Газов гигант" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bjn mw-list-item"><a href="https://bjn.wikipedia.org/wiki/Raksasa_gas" title="Raksasa gas - banjar" lang="bjn" hreflang="bjn" data-title="Raksasa gas" data-language-autonym="Banjar" data-language-local-name="banjar" class="interlanguage-link-target"><span>Banjar</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%97%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%B8%E0%A7%80%E0%A6%AF%E0%A6%BC_%E0%A6%A6%E0%A7%88%E0%A6%A4%E0%A7%8D%E0%A6%AF" title="গ্যাসীয় দৈত্য - bengalese" lang="bn" hreflang="bn" data-title="গ্যাসীয় দৈত্য" 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/Plinoviti_div" title="Plinoviti div - bosniaco" lang="bs" hreflang="bs" data-title="Plinoviti div" 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/Gegant_gas%C3%B3s" title="Gegant gasós - catalano" lang="ca" hreflang="ca" data-title="Gegant gasós" 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_%DA%AF%D8%A7%D8%B2%DB%8C" title="ھەسارەی گازی - curdo centrale" lang="ckb" hreflang="ckb" data-title="ھەسارەی گازی" 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/Plynn%C3%BD_obr" title="Plynný obr - ceco" lang="cs" hreflang="cs" data-title="Plynný obr" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Cawr_nwy" title="Cawr nwy - gallese" lang="cy" hreflang="cy" data-title="Cawr nwy" data-language-autonym="Cymraeg" data-language-local-name="gallese" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Gask%C3%A6mpe" title="Gaskæmpe - danese" lang="da" hreflang="da" data-title="Gaskæmpe" 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/Gasplanet" title="Gasplanet - tedesco" lang="de" hreflang="de" data-title="Gasplanet" 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%91%CE%AD%CF%81%CE%B9%CE%BF%CF%82_%CE%B3%CE%AF%CE%B3%CE%B1%CE%BD%CF%84%CE%B1%CF%82" title="Αέριος γίγαντας - greco" lang="el" hreflang="el" data-title="Αέριος γίγαντας" 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/Gas_giant" title="Gas giant - inglese" lang="en" hreflang="en" data-title="Gas giant" 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/Gasgiganto" title="Gasgiganto - esperanto" lang="eo" hreflang="eo" data-title="Gasgiganto" 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/Gigante_gaseoso" title="Gigante gaseoso - spagnolo" lang="es" hreflang="es" data-title="Gigante gaseoso" 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/Hiidplaneet" title="Hiidplaneet - estone" lang="et" hreflang="et" data-title="Hiidplaneet" 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/Gasezko_erraldoi" title="Gasezko erraldoi - basco" lang="eu" hreflang="eu" data-title="Gasezko erraldoi" 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%BA%D9%88%D9%84_%DA%AF%D8%A7%D8%B2%DB%8C" title="غول گازی - persiano" lang="fa" hreflang="fa" data-title="غول گازی" 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/J%C3%A4ttil%C3%A4isplaneetta" title="Jättiläisplaneetta - finlandese" lang="fi" hreflang="fi" data-title="Jättiläisplaneetta" 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_g%C3%A9ante_gazeuse" title="Planète géante gazeuse - francese" lang="fr" hreflang="fr" data-title="Planète géante gazeuse" 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/Gasreus" title="Gasreus - frisone occidentale" lang="fy" hreflang="fy" data-title="Gasreus" data-language-autonym="Frysk" data-language-local-name="frisone occidentale" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Xigante_gasoso" title="Xigante gasoso - galiziano" lang="gl" hreflang="gl" data-title="Xigante gasoso" 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_mba%27et%C4%A9va" title="Yvóra mba'etĩva - guaraní" lang="gn" hreflang="gn" data-title="Yvóra mba'etĩva" 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/Foawr_gas" title="Foawr gas - mannese" lang="gv" hreflang="gv" data-title="Foawr gas" 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%A2%D7%A0%D7%A7_%D7%92%D7%96%D7%99%D7%9D" title="ענק גזים - ebraico" lang="he" hreflang="he" data-title="ענק גזים" 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%97%E0%A5%88%E0%A4%B8_%E0%A4%A6%E0%A4%BE%E0%A4%A8%E0%A4%B5" title="गैस दानव - hindi" lang="hi" hreflang="hi" data-title="गैस दानव" 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/Plinoviti_div" title="Plinoviti div - croato" lang="hr" hreflang="hr" data-title="Plinoviti div" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B3%D5%A1%D5%A6%D5%A1%D5%B5%D5%AB%D5%B6_%D5%B0%D5%BD%D5%AF%D5%A1" title="Գազային հսկա - armeno" lang="hy" hreflang="hy" data-title="Գազային հսկա" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Raksasa_gas" title="Raksasa gas - indonesiano" lang="id" hreflang="id" data-title="Raksasa gas" 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-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Gasrisi" title="Gasrisi - islandese" lang="is" hreflang="is" data-title="Gasrisi" data-language-autonym="Íslenska" data-language-local-name="islandese" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%AC%E3%82%B9%E3%82%B8%E3%83%A3%E3%82%A4%E3%82%A2%E3%83%B3%E3%83%88" title="ガスジャイアント - giapponese" lang="ja" hreflang="ja" data-title="ガスジャイアント" 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/Raseksa_gas" title="Raseksa gas - giavanese" lang="jv" hreflang="jv" data-title="Raseksa gas" 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%98%E1%83%A3%E1%83%9E%E1%83%98%E1%83%A2%E1%83%94%E1%83%A0%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="იუპიტერის ჯგუფის პლანეტები - georgiano" lang="ka" hreflang="ka" data-title="იუპიტერის 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/Imtiwgen_n_ugaz" title="Imtiwgen n ugaz - cabilo" lang="kab" hreflang="kab" data-title="Imtiwgen n ugaz" 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/%EA%B1%B0%EB%8C%80_%EA%B8%B0%EC%B2%B4_%ED%96%89%EC%84%B1" title="거대 기체 행성 - coreano" lang="ko" hreflang="ko" data-title="거대 기체 행성" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/D%C3%AAw%C3%AA_gaz%C3%AA" title="Dêwê gazê - curdo" lang="ku" hreflang="ku" data-title="Dêwê gazê" data-language-autonym="Kurdî" data-language-local-name="curdo" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Planeta_iovialis" title="Planeta iovialis - latino" lang="la" hreflang="la" data-title="Planeta iovialis" 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/Gasplan%C3%A9it" title="Gasplanéit - lussemburghese" lang="lb" hreflang="lb" data-title="Gasplanéit" 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/Gigant_gassos" title="Gigant gassos - lombardo" lang="lmo" hreflang="lmo" data-title="Gigant gassos" 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/Planetos_mil%C5%BEin%C4%97s" title="Planetos milžinės - lituano" lang="lt" hreflang="lt" data-title="Planetos milžinės" 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/G%C4%81zu_plan%C4%93ta" title="Gāzu planēta - lettone" lang="lv" hreflang="lv" data-title="Gāzu planēta" 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%93%D0%B0%D1%81%D0%BE%D0%B2%D0%B8%D1%82_%D1%9F%D0%B8%D0%BD" title="Гасовит џин - macedone" lang="mk" hreflang="mk" data-title="Гасовит џин" 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%B5%E0%B4%BE%E0%B4%A4%E0%B4%95%E0%B4%AD%E0%B5%80%E0%B4%AE%E0%B4%A8%E0%B5%8D%E0%B4%AE%E0%B4%BE%E0%B5%BC" title="വാതകഭീമന്മാർ - malayalam" lang="ml" hreflang="ml" data-title="വാതകഭീമന്മാർ" 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%D0%B8%D0%B9%D0%BD_%D0%B3%D0%B0%D1%80%D0%B0%D0%B3" title="Хийн гараг - mongolo" lang="mn" hreflang="mn" data-title="Хийн 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%B0%E0%A4%BE%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%B8%E0%A5%80_%E0%A4%B5%E0%A4%BE%E0%A4%AF%E0%A5%82_%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%B9" title="राक्षसी वायू ग्रह - marathi" lang="mr" hreflang="mr" data-title="राक्षसी वायू 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/Gergasi_gas" title="Gergasi gas - malese" lang="ms" hreflang="ms" data-title="Gergasi gas" 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-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%93%E1%80%AC%E1%80%90%E1%80%BA%E1%80%84%E1%80%BD%E1%80%B1%E1%80%B7%E1%80%82%E1%80%BC%E1%80%AD%E1%80%AF%E1%80%9F%E1%80%BA%E1%80%98%E1%80%AE%E1%80%9C%E1%80%B0%E1%80%B8" title="ဓာတ်ငွေ့ဂြိုဟ်ဘီလူး - birmano" lang="my" hreflang="my" data-title="ဓာတ်ငွေ့ဂြိုဟ်ဘီလူး" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="birmano" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%97%E0%A5%8D%E0%A4%AF%E0%A4%BE%E0%A4%B8%E0%A4%95%E0%A5%8B_%E0%A4%AA%E0%A4%BF%E0%A4%A3%E0%A5%8D%E0%A4%A1" title="ग्यासको पिण्ड - nepalese" lang="ne" hreflang="ne" data-title="ग्यासको पिण्ड" data-language-autonym="नेपाली" data-language-local-name="nepalese" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Gasreus" title="Gasreus - olandese" lang="nl" hreflang="nl" data-title="Gasreus" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Gasskjempe" title="Gasskjempe - norvegese bokmål" lang="nb" hreflang="nb" data-title="Gasskjempe" 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/Giganta_gasosa" title="Giganta gasosa - occitano" lang="oc" hreflang="oc" data-title="Giganta gasosa" data-language-autonym="Occitan" data-language-local-name="occitano" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-os mw-list-item"><a href="https://os.wikipedia.org/wiki/%D0%93%D0%B0%D0%B7%D0%BE%D0%BD_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%C3%A6" title="Газон планетæ - ossetico" lang="os" hreflang="os" data-title="Газон планетæ" data-language-autonym="Ирон" data-language-local-name="ossetico" class="interlanguage-link-target"><span>Ирон</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%97%E0%A9%88%E0%A8%B8_%E0%A8%A6%E0%A8%BF%E0%A8%93" title="ਗੈਸ ਦਿਓ - punjabi" lang="pa" hreflang="pa" data-title="ਗੈਸ ਦਿਓ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Gazowy_olbrzym" title="Gazowy olbrzym - polacco" lang="pl" hreflang="pl" data-title="Gazowy olbrzym" 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/Gigant_gaseus" title="Gigant gaseus - piemontese" lang="pms" hreflang="pms" data-title="Gigant gaseus" 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/%DA%AF%DB%8C%D8%B3_%D8%AC%D9%86" title="گیس جن - Western Punjabi" lang="pnb" hreflang="pnb" data-title="گیس جن" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Gigante_gasoso" title="Gigante gasoso - portoghese" lang="pt" hreflang="pt" data-title="Gigante gasoso" 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/Gigant_gazos" title="Gigant gazos - rumeno" lang="ro" hreflang="ro" data-title="Gigant gazos" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%93%D0%B0%D0%B7%D0%BE%D0%B2%D1%8B%D0%B5_%D0%B3%D0%B8%D0%B3%D0%B0%D0%BD%D1%82%D1%8B" title="Газовые гиганты - russo" lang="ru" hreflang="ru" data-title="Газовые гиганты" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Plinoviti_div" title="Plinoviti div - serbo-croato" lang="sh" hreflang="sh" data-title="Plinoviti div" 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-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Gas_giant" title="Gas giant - Simple English" lang="en-simple" hreflang="en-simple" data-title="Gas giant" 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/Jovi%C3%A1lna_plan%C3%A9ta" title="Joviálna planéta - slovacco" lang="sk" hreflang="sk" data-title="Joviálna 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/Plinasti_orjak" title="Plinasti orjak - sloveno" lang="sl" hreflang="sl" data-title="Plinasti orjak" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Neefaha_Waawayn" title="Neefaha Waawayn - somalo" lang="so" hreflang="so" data-title="Neefaha Waawayn" 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%9F%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0_%D0%88%D1%83%D0%BF%D0%B8%D1%82%D0%B5%D1%80%D0%BE%D0%B2%D0%BE%D0%B3_%D1%82%D0%B8%D0%BF%D0%B0" title="Планета Јупитеровог типа - serbo" lang="sr" hreflang="sr" data-title="Планета Јупитеровог типа" 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/Gasj%C3%A4tte" title="Gasjätte - svedese" lang="sv" hreflang="sv" data-title="Gasjätte" 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%B5%E0%AE%B3%E0%AE%BF%E0%AE%AE%E0%AE%AA%E0%AF%8D_%E0%AE%AA%E0%AF%86%E0%AE%B0%E0%AF%81%E0%AE%99%E0%AF%8D%E0%AE%95%E0%AF%8B%E0%AE%B3%E0%AF%8D" title="வளிமப் பெருங்கோள் - tamil" lang="ta" hreflang="ta" data-title="வளிமப் பெருங்கோள்" 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%81%E0%B9%8A%E0%B8%B2%E0%B8%8B%E0%B8%A2%E0%B8%B1%E0%B8%81%E0%B8%A9%E0%B9%8C" title="ดาวเคราะห์ก๊าซยักษ์ - thailandese" lang="th" hreflang="th" data-title="ดาวเคราะห์ก๊าซยักษ์" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl badge-Q70893996 mw-list-item" title=""><a href="https://tl.wikipedia.org/wiki/Dambuhalang_gas" title="Dambuhalang gas - tagalog" lang="tl" hreflang="tl" data-title="Dambuhalang gas" 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/Gaz_devi" title="Gaz devi - turco" lang="tr" hreflang="tr" data-title="Gaz devi" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%93%D0%B0%D0%B7%D0%BB%D1%8B_%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%B0" title="Газлы планета - tataro" lang="tt" hreflang="tt" data-title="Газлы планета" data-language-autonym="Татарча / tatarça" data-language-local-name="tataro" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%93%D0%B0%D0%B7%D0%BE%D0%B2%D1%96_%D0%B3%D1%96%D0%B3%D0%B0%D0%BD%D1%82%D0%B8" title="Газові гіганти - ucraino" lang="uk" hreflang="uk" data-title="Газові гіганти" 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/%DA%AF%DB%8C%D8%B3%DB%8C_%D8%AF%DB%8C%D9%88" title="گیسی دیو - urdu" lang="ur" hreflang="ur" data-title="گیسی دیو" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/H%C3%A0nh_tinh_kh%C3%AD_kh%E1%BB%95ng_l%E1%BB%93" title="Hành tinh khí khổng lồ - vietnamita" lang="vi" hreflang="vi" data-title="Hành tinh khí khổng lồ" 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/Higante_nga_gas" title="Higante nga gas - waray" lang="war" hreflang="war" data-title="Higante nga gas" 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/%E6%B0%94%E6%80%81%E5%B7%A8%E8%A1%8C%E6%98%9F" title="气态巨行星 - wu" lang="wuu" hreflang="wuu" data-title="气态巨行星" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/%E1%83%92%E1%83%90%E1%83%96%E1%83%98%E1%83%A8_%E1%83%92%E1%83%98%E1%83%92%E1%83%90%E1%83%9C%E1%83%A2%E1%83%94%E1%83%A4%E1%83%98" title="გაზიშ გიგანტეფი - mengrelio" lang="xmf" hreflang="xmf" data-title="გაზიშ გიგანტეფი" data-language-autonym="მარგალური" data-language-local-name="mengrelio" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%B0%A3%E6%85%8B%E5%B7%A8%E8%A1%8C%E6%98%9F" title="氣態巨行星 - cinese" lang="zh" hreflang="zh" data-title="氣態巨行星" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E6%B0%A3%E9%AB%94%E5%A4%A7%E8%A1%8C%E6%98%9F" title="氣體大行星 - cantonese" lang="yue" hreflang="yue" data-title="氣體大行星" 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src="//upload.wikimedia.org/wikipedia/commons/thumb/1/18/Gas_giants_in_the_solar_system.jpg/250px-Gas_giants_in_the_solar_system.jpg" decoding="async" width="220" height="284" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/18/Gas_giants_in_the_solar_system.jpg/330px-Gas_giants_in_the_solar_system.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/18/Gas_giants_in_the_solar_system.jpg/500px-Gas_giants_in_the_solar_system.jpg 2x" data-file-width="2075" data-file-height="2674" /></a><figcaption>I quattro giganti gassosi del <a href="/wiki/Sistema_solare" title="Sistema solare">sistema solare</a>, in un fotomontaggio che ne rispetta le dimensioni ma non le distanze; dal basso verso l'alto, <a href="/wiki/Giove_(astronomia)" title="Giove (astronomia)">Giove</a>, <a href="/wiki/Saturno_(astronomia)" title="Saturno (astronomia)">Saturno</a>, <a href="/wiki/Urano_(astronomia)" title="Urano (astronomia)">Urano</a> e <a href="/wiki/Nettuno_(astronomia)" title="Nettuno (astronomia)">Nettuno</a>.</figcaption></figure> <p><b>Gigante gassoso</b> (denominato anche <b>pianeta gioviano</b>) è un termine astronomico generico, inventato dallo scrittore di <a href="/wiki/Fantascienza" title="Fantascienza">fantascienza</a> <a href="/wiki/James_Blish" title="James Blish">James Blish</a> e ormai entrato nell'uso comune<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>, per descrivere un grosso <a href="/wiki/Pianeta" title="Pianeta">pianeta</a> che non sia composto prevalentemente da <a href="/wiki/Roccia" title="Roccia">roccia</a>. I giganti gassosi, in realtà, possono avere un nucleo roccioso, ed effettivamente si sospetta che un tale nucleo sia necessario per la loro formazione. La maggior parte della loro <a href="/wiki/Massa_(fisica)" title="Massa (fisica)">massa</a> è tuttavia presente sotto forma di <a href="/wiki/Gas" title="Gas">gas</a> (oppure gas compresso in uno <a href="/wiki/Stato_liquido" class="mw-redirect" title="Stato liquido">stato liquido</a>). A differenza dei <a href="/wiki/Pianeta_terrestre" title="Pianeta terrestre">pianeti rocciosi</a>, i giganti gassosi non hanno una superficie ben definita<sup id="cite_ref-Treccani_2-0" class="reference"><a href="#cite_note-Treccani-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. </p><p>Il sistema solare presenta quattro giganti gassosi: <a href="/wiki/Giove_(astronomia)" title="Giove (astronomia)">Giove</a>, <a href="/wiki/Saturno_(astronomia)" title="Saturno (astronomia)">Saturno</a>, <a href="/wiki/Urano_(astronomia)" title="Urano (astronomia)">Urano</a> e <a href="/wiki/Nettuno_(astronomia)" title="Nettuno (astronomia)">Nettuno</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Tipologia">Tipologia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gigante_gassoso&veaction=edit&section=1" title="Modifica la sezione Tipologia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gigante_gassoso&action=edit&section=1" title="Edit section's source code: Tipologia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Sono solitamente definiti giganti gassosi i pianeti con massa superiore alle 10 <a href="/wiki/Massa_terrestre" title="Massa terrestre">masse terrestri</a><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>. </p><p>Un oggetto con massa superiore a 80 volte quella di Giove (cioè 0,08 volte la massa del <a href="/wiki/Sole" title="Sole">Sole</a>) ha calore e pressione tali al suo interno per poter innescare una reazione di <a href="/wiki/Fusione_nucleare" title="Fusione nucleare">fusione nucleare</a>, che trasforma il corpo celeste in una piccola stella<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>. Ci sono poi oggetti di massa minore ma grandi abbastanza per poter innescare la fusione del <a href="/wiki/Deuterio" title="Deuterio">deuterio</a>, ma non sono considerati pianeti ma <a href="/wiki/Nane_brune" class="mw-redirect" title="Nane brune">nane brune</a>. È stato assunto un limite di 13 <a href="/wiki/Massa_gioviana" title="Massa gioviana">masse gioviane</a> oltre il quale un corpo non è più definito pianeta ma <a href="/wiki/Nana_bruna" title="Nana bruna">nana bruna</a>. Non si tratta di un limite dal preciso significato fisico ma di una convenzione adottata dall'<a href="/wiki/Unione_astronomica_internazionale" class="mw-redirect" title="Unione astronomica internazionale">Unione astronomica internazionale</a>, in quanto oggetti di grandi dimensioni bruceranno la maggior parte del loro deuterio e quelli più piccoli ne bruceranno solo una piccola parte. La quantità di deuterio bruciato dipende non solo dalla massa ma anche dalla composizione del pianeta, in particolare dalla quantità di <a href="/wiki/Elio" title="Elio">elio</a> e deuterio presenti<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>. L'<a href="/wiki/Enciclopedia_dei_Pianeti_Extrasolari" class="mw-redirect" title="Enciclopedia dei Pianeti Extrasolari">Enciclopedia dei Pianeti Extrasolari</a> ad esempio comprende oggetti fino a 25 masse gioviane, e la <a href="/w/index.php?title=Exoplanet_Data_Explorer&action=edit&redlink=1" class="new" title="Exoplanet Data Explorer (la pagina non esiste)">Exoplanet Data Explorer</a> fino a 24 masse gioviane. </p> <div class="mw-heading mw-heading2"><h2 id="Giove_e_Saturno">Giove e Saturno</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gigante_gassoso&veaction=edit&section=2" title="Modifica la sezione Giove e Saturno" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gigante_gassoso&action=edit&section=2" title="Edit section's source code: Giove e Saturno"><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:Gas_Giant_Interiors_it.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Gas_Giant_Interiors_it.png/330px-Gas_Giant_Interiors_it.png" decoding="async" width="290" height="173" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Gas_Giant_Interiors_it.png/500px-Gas_Giant_Interiors_it.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d9/Gas_Giant_Interiors_it.png/960px-Gas_Giant_Interiors_it.png 2x" data-file-width="3000" data-file-height="1788" /></a><figcaption>La struttura interna dei pianeti gioviani.</figcaption></figure> <p>Giove e Saturno sono costituiti principalmente da idrogeno ed elio, e la maggior parte della loro massa è composta da idrogeno allo stato liquido o <a href="/wiki/Metallo" title="Metallo">metallico</a>, forse con un nucleo roccioso o composto da <a href="/wiki/Nichel" title="Nichel">nichel</a> e <a href="/wiki/Ferro" title="Ferro">ferro</a><sup id="cite_ref-Treccani_2-1" class="reference"><a href="#cite_note-Treccani-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. Lo strato esterno è costituito da idrogeno molecolare, che circonda uno strato di idrogeno metallico liquido, con un nucleo fuso probabilmente roccioso e, nel caso di Giove, di <span class="nowrap"><span data-sort-value="7007120000000000000♠"></span>12<span style="margin-left:.25em;">000</span> <a href="/wiki/Chilometro" title="Chilometro">km</a></span> di diametro. Gli strati più esterni dell'atmosfera di idrogeno sono caratterizzati da nuvole visibili generalmente composte da acqua e ammoniaca. All'interno, l'idrogeno è definito "metallico" perché la grande pressione lo trasforma in un <a href="/wiki/Conduttore_elettrico" title="Conduttore elettrico">conduttore elettrico</a><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Urano_e_Nettuno">Urano e Nettuno</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gigante_gassoso&veaction=edit&section=3" title="Modifica la sezione Urano e Nettuno" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gigante_gassoso&action=edit&section=3" title="Edit section's source code: Urano e Nettuno"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>La composizione degli altri giganti gassosi è simile, ma Urano e Nettuno contengono al loro interno molto meno idrogeno e maggiori quantità di acqua, ammoniaca, e <a href="/wiki/Metano" title="Metano">metano</a>, per questo sono stati definiti anche <a href="/wiki/Gigante_ghiacciato" title="Gigante ghiacciato">giganti ghiacciati</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>. Nonostante la composizione interna non sia ben conosciuta, possono essere presenti anche rocce e gas, ma in misura molto minore. </p><p>Poiché era ritenuto plausibile che il metano potesse dissociarsi alle altissime <a href="/wiki/Pressione" title="Pressione">pressioni</a> raggiunte nelle profondità dei due pianeti e che il <a href="/wiki/Carbonio" title="Carbonio">carbonio</a> vi potesse <a href="/wiki/Cristallizzazione" title="Cristallizzazione">cristallizzare</a> direttamente come <a href="/wiki/Diamante" title="Diamante">diamante</a>, alcuni astronomi ritenevano che i nuclei di Urano e Nettuno fossero composti da diamanti; tuttavia, successive ricerche hanno escluso questa eventualità<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><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup>. Negli strati inferiori, l'<a href="/w/index.php?title=Idrogeno_liquido&action=edit&redlink=1" class="new" title="Idrogeno liquido (la pagina non esiste)">idrogeno liquido</a> all'interno dei giganti gassosi è così compresso che diventa di natura metallica. L'<a href="/wiki/Idrogeno_metallico" title="Idrogeno metallico">idrogeno metallico</a> è stabile solo a tali enormi pressioni<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Giganti_gassosi_extrasolari">Giganti gassosi extrasolari</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Gigante_gassoso&veaction=edit&section=4" title="Modifica la sezione Giganti gassosi extrasolari" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Gigante_gassoso&action=edit&section=4" title="Edit section's source code: Giganti gassosi extrasolari"><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:Plan79ceti.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Plan79ceti.jpg/220px-Plan79ceti.jpg" decoding="async" width="220" height="149" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Plan79ceti.jpg/330px-Plan79ceti.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Plan79ceti.jpg/440px-Plan79ceti.jpg 2x" data-file-width="600" data-file-height="405" /></a><figcaption>Rappresentazione artistica di <a href="/wiki/79_Ceti_b" title="79 Ceti b">79 Ceti b</a>, il primo gigante gassoso extrasolare scoperto con una massa minore di quella di Saturno.</figcaption></figure> <p>A causa delle tecniche disponibili, molti dei <a href="/wiki/Pianeta_extrasolare" title="Pianeta extrasolare">pianeti extrasolari</a> conosciuti possiedono masse paragonabili e spesso molto superiori a Giove, e su questa base è stato suggerito che possano essere dei giganti gassosi. La loro composizione e struttura è però sconosciuta; molti di questi pianeti orbitano molto vicini alla propria <a href="/wiki/Stella" title="Stella">stella</a> madre, come i cosiddetti <i><a href="/wiki/Pianeta_gioviano_caldo" title="Pianeta gioviano caldo">gioviani caldi</a></i>, ed è oggetto di dibattito se gli strati di gas mostrati da Giove e Saturno possano sopravvivere a simili temperature e alla forza del <a href="/wiki/Vento_solare" title="Vento solare">vento solare</a><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>. </p><p>Anche se le parole "gas" e "gigante" sono spesso combinate, i pianeti costituiti prevalentemente da idrogeno potrebbero essere più piccoli dei giganti gassosi noti del Sistema Solare. Tuttavia, pianeti gassosi meno massicci perderanno massa atmosferica più rapidamente rispetto a pianeti più grandi o situati più lontano dalla propria stella<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup>. </p><p>Il più piccolo pianeta extrasolare noto come un probabile "pianeta gassoso" è <a href="/wiki/Kepler-138_c" title="Kepler-138 c">Kepler-138 c</a>, che ha la stessa massa della Terra ma è del 60% più grande e ha di conseguenza una densità minore. Questo fa supporre che sia avvolto da uno spesso guscio di gas costituito da idrogeno ed elio<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup>. </p> <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=Gigante_gassoso&veaction=edit&section=5" 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=Gigante_gassoso&action=edit&section=5" 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-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text">David Darling, <i><a rel="nofollow" class="external text" href="http://www.daviddarling.info/encyclopedia/G/gasgiant.html">gas giant</a></i> in Encyclopedia of Science</span> </li> <li id="cite_note-Treccani-2"><span class="mw-cite-backlink"><b>^</b> <sup><i><a href="#cite_ref-Treccani_2-0">a</a></i></sup> <sup><i><a href="#cite_ref-Treccani_2-1">b</a></i></sup></span> <span class="reference-text"><cite id="CITEREFTreccani_giganti-gassosi_(Enciclopedia-della-Scienza-e-della-Tecnica)/" class="citation testo" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.treccani.it/enciclopedia/giganti-gassosi_(Enciclopedia-della-Scienza-e-della-Tecnica)/"><span style="font-style:italic;">Giganti gassosi</span></a>, in <span style="font-style:italic;">Enciclopedia della scienza e della tecnica</span>, Roma, Istituto dell'Enciclopedia Italiana, 2007-2008.</cite></span> </li> <li id="cite_note-3"><a href="#cite_ref-3"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> Ana-Maria A. Piso, Andrew N. Youdin, <a rel="nofollow" class="external text" href="https://arxiv.org/abs/1311.0011"><span style="font-style:italic;">On the Minimum Core Mass for Giant Planet Formation at Wide Separations</span></a>, ottobre 2013.</cite></span> </li> <li id="cite_note-4"><a href="#cite_ref-4"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> David S. Spiegel <i>et al.</i>, <a rel="nofollow" class="external text" href="https://arxiv.org/abs/1008.5150"><span style="font-style:italic;">The Deuterium-Burning Mass Limit for Brown Dwarfs and Giant Planets</span></a>, agosto 2010.</cite></span> </li> <li id="cite_note-5"><a href="#cite_ref-5"><b>^</b></a> <span class="reference-text"><cite class="citation pubblicazione" style="font-style:normal"> David S. Spiegel <i>et al.</i>, <a rel="nofollow" class="external text" href="https://arxiv.org/pdf/1008.5150v2.pdf"><span style="font-style:italic;">The Deuterium-Burning Mass Limit for Brown Dwarfs and Giant Planets</span></a> (<span style="font-weight: bolder; font-size:80%"><abbr title="documento in formato PDF">PDF</abbr></span>), agosto 2010.</cite></span> </li> <li id="cite_note-6"><a href="#cite_ref-6"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20101013074441/http://www.bo.astro.it/universo/venere/Sole-Pianeti/planets/giostr.htm">Struttura interna di Giove</a> bo.astro.it</span> </li> <li id="cite_note-7"><a href="#cite_ref-7"><b>^</b></a> <span class="reference-text">M. Hofstadter <a rel="nofollow" class="external text" href="http://www.lpi.usra.edu/decadal/opag/IceGiantAtmospheres_v7.pdf">The Atmosphere of the Ice Giants</a></span> </li> <li id="cite_note-8"><a href="#cite_ref-8"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.newscientist.com/article/dn12252-uranus-has-no-diamonds-after-all.html#.U3uBunasJ-4">Uranus has no diamonds after all</a> New Scientist</span> </li> <li id="cite_note-9"><a href="#cite_ref-9"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.ictp.it/media/256332/comunicato_ictp_8febbraio2011.pdf">Niente diamanti su Nettuno e Urano</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150924032805/http://www.ictp.it/media/256332/comunicato_ictp_8febbraio2011.pdf">Archiviato</a> il 24 settembre 2015 in <a href="/wiki/Internet_Archive" title="Internet Archive">Internet Archive</a>. International centre of theorical physics</span> </li> <li id="cite_note-10"><a href="#cite_ref-10"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> Ivan Amato, <a rel="nofollow" class="external text" href="https://www.nature.com/news/metallic-hydrogen-hard-pressed-1.10817"><span style="font-style:italic;">Metallic hydrogen: Hard pressed</span></a>, su <span style="font-style:italic;">nature.com</span>, <a href="/wiki/Nature" title="Nature">Nature</a>, 13 giugno 2012.</cite></span> </li> <li id="cite_note-11"><a href="#cite_ref-11"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="https://solarsystem.nasa.gov/scitech/display.cfm?ST_ID=1949">Defining Giant Hot Jupiter-like Exoplanets as an Astronomical Class of Objects</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20140522070641/https://solarsystem.nasa.gov/scitech/display.cfm?ST_ID=1949">Archiviato</a> il 22 maggio 2014 in <a href="/wiki/Internet_Archive" title="Internet Archive">Internet Archive</a>. <a href="/wiki/NASA" title="NASA">NASA</a></span> </li> <li id="cite_note-12"><a href="#cite_ref-12"><b>^</b></a> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.astrobio.net/topic/deep-space/cosmic-evolution/variations-in-the-atmospheres-of-hot-jupiters/">Variations in the Atmospheres of Hot Jupiters</a></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"> D.C. Swift <i>et al.</i>, <a rel="nofollow" class="external text" href="https://arxiv.org/pdf/1001.4851.pdf"><span style="font-style:italic;">Mass-radius relationships for exoplanets</span></a> (<span style="font-weight: bolder; font-size:80%"><abbr title="documento in formato PDF">PDF</abbr></span>), settembre 2011.</cite></span> </li> <li id="cite_note-14"><a href="#cite_ref-14"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> Ron Cowen, <a rel="nofollow" class="external text" href="https://www.nature.com/news/earth-mass-exoplanet-is-no-earth-twin-1.14477"><span style="font-style:italic;">Earth-mass exoplanet is no Earth twin</span></a>, su <span style="font-style:italic;">nature.com</span>, <a href="/wiki/Nature" title="Nature">Nature</a>, 6 gennaio 2014.</cite></span> </li> </ol></div> <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=Gigante_gassoso&veaction=edit&section=6" 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=Gigante_gassoso&action=edit&section=6" 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/Giove_(astronomia)" title="Giove (astronomia)">Giove (astronomia)</a></li> <li><a href="/wiki/Pianeta_terrestre" title="Pianeta terrestre">Pianeta terrestre</a></li> <li><a href="/wiki/Nana_bruna" title="Nana bruna">Nana bruna</a></li> <li><a href="/wiki/Nana_rossa" title="Nana rossa">Nana rossa</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=Gigante_gassoso&veaction=edit&section=7" 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=Gigante_gassoso&action=edit&section=7" 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:Gas giants"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Gas_giants?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/20px-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/40px-Commons-logo.svg.png 1.5x" 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 sui <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Gas_giants?uselang=it">giganti gassosi</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=Gigante_gassoso&veaction=edit&section=8" 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=Gigante_gassoso&action=edit&section=8" 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="CITEREFEncyclopedia_of_Science_Fiction" 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.sf-encyclopedia.com/entry/gas_giant"><span style="font-style:italic;">Gigante gassoso</span></a>, su <span style="font-style:italic;"><a href="/wiki/The_Encyclopedia_of_Science_Fiction" title="The Encyclopedia of Science Fiction">The Encyclopedia of Science Fiction</a></span>.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q121750#P5357" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" data-file-width="600" data-file-height="600" /></a></span></li> <li><cite 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://intl.startrek.com/database_article/gas-giant"><span style="font-style:italic;">Gigante gassoso</span></a>, su <span style="font-style:italic;">StarTrek.com</span>, <a href="/wiki/CBS_Studios" title="CBS Studios">CBS Studios</a>.</cite> <span class="mw-valign-text-top noprint" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q121750#P7512" title="Modifica su Wikidata"><img alt="Modifica su Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/73/Blue_pencil.svg/20px-Blue_pencil.svg.png" decoding="async" width="10" height="10" class="mw-file-element" data-file-width="600" data-file-height="600" /></a></span></li> <li>SPACE.com: <a rel="nofollow" class="external text" href="http://www.space.com/scienceastronomy/060816_planet_qanda.html">Q&A: The IAU's Proposed Planet Definition</a> 16 August 2006 2:00 am ET</li> <li>BBC News: <a rel="nofollow" class="external text" href="http://news.bbc.co.uk/1/hi/sci/tech/4798205.stm">Q&A New planets proposal</a> Wednesday, 16 August 2006, 13:36 GMT 14:36 UK</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 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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 href="/wiki/Pianeta_terrestre" title="Pianeta terrestre">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 class="mw-selflink selflink">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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