{"id":1105,"date":"2006-01-19T10:30:00","date_gmt":"2006-01-19T09:30:00","guid":{"rendered":"https:\/\/kids.esa.int\/jupiter\/"},"modified":"2026-10-08T00:36:03","modified_gmt":"2026-10-07T22:36:03","slug":"jupiter","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/jupiter\/","title":{"rendered":"Jupiter"},"content":{"rendered":"
\n

Au-del\u00e0 de la ceinture d'ast\u00e9ro\u00efdes se trouve Jupiter, la cinqui\u00e8me plan\u00e8te \u00e0 partir du Soleil. Jupiter est gigantesque. Elle est tellement grosse qu'elle pourrait facilement engloutir toutes les autres plan\u00e8tes (ou plus de 1300 Terres). Sa masse est plus de deux fois sup\u00e9rieure \u00e0 celle de la totalit\u00e9 des autres plan\u00e8tes du syst\u00e8me solaire. Malgr\u00e9 sa taille impressionnante, Jupiter est la plan\u00e8te qui tourne le plus rapidement sur elle-m\u00eame en faisant un tour complet en moins de 10 heures.<\/p>\n<\/div>\n

Jupiter est cinq fois plus \u00e9loign\u00e9e du Soleil que la Terre et la temp\u00e9rature \u00e0 sa surface est de -145\u00b0C. Tous les 13 mois environ, elle se rapproche de la Terre et devient tr\u00e8s brillante dans le ciel.<\/p>\n

Jupiter est une \u00e9norme boule de gaz, sans surface solide. Elle est essentiellement constitu\u00e9e de gaz tr\u00e8s l\u00e9gers, d'hydrog\u00e8ne et d'h\u00e9lium. L'observation au t\u00e9lescope r\u00e9v\u00e8le une atmosph\u00e8re nuageuse entour\u00e9e de ceintures et de taches tr\u00e8s color\u00e9es. La plus grande tache - appel\u00e9e la Grande Tache Rouge - est en fait une gigantesque temp\u00eate dont la taille est \u00e9quivalente \u00e0 plusieurs fois la Terre. Elle souffle continuellement depuis plus de 300 ans.<\/p>\n

Jupiter poss\u00e8de un anneau de poussi\u00e8res invisible depuis la Terre, de plus de 100 000 km de largeur, qui a \u00e9t\u00e9 d\u00e9couvert par la sonde spatiale Voyager. Elle d\u00e9tient aussi le record du nombre de lunes r\u00e9pertori\u00e9es (63 au dernier recensement).<\/p>\n

Les quatre plus grosses lunes ont \u00e9t\u00e9 d\u00e9couvertes en 1610 par Galil\u00e9e, le savant italien. Io est parsem\u00e9e de volcans sur une surface sulfureuse jaune-orang\u00e9. Europa a une surface lisse, couverte de glace, qui ressemble \u00e0 une coquille d'\u0153uf f\u00eal\u00e9e. Ganym\u00e8de pr\u00e9sente des taches brillantes et sombres avec des sillons et des crat\u00e8res. Callisto poss\u00e8de une surface tr\u00e8s ancienne enti\u00e8rement couverte de crat\u00e8res.<\/p>","protected":false},"excerpt":{"rendered":"

Beyond the asteroid belt is Jupiter, the fifth planet from the Sun. Everything about Jupiter is large. It is so big that it could easily swallow all of the other […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2004\/06\/high_resolution_globe_of_jupiter2\/17891538-2-eng-GB\/High_resolution_globe_of_Jupiter.jpg","esa_banner_description":"High resolution globe of Jupiter","esa_banner_credit":"NASA\/JPL\/University of Arizona","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/06\/High_resolution_globe_of_Jupiter2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,12],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1105","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/1105","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/comments?post=1105"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/1105\/revisions"}],"predecessor-version":[{"id":2248,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/posts\/1105\/revisions\/2248"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/media?parent=1105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/categories?post=1105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/tags?post=1105"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/panel?post=1105"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/language?post=1105"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/age?post=1105"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/duration?post=1105"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/resource_type?post=1105"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/audience?post=1105"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fr\/wp-json\/wp\/v2\/wf_post_folders?post=1105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}