{"id":64274,"date":"2024-12-27T19:04:30","date_gmt":"2024-12-27T19:04:30","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/une-neuvieme-planete-pour-le-systeme-solaire"},"modified":"2024-12-29T02:49:29","modified_gmt":"2024-12-29T02:49:29","slug":"une-neuvieme-planete-pour-le-systeme-solaire","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/une-neuvieme-planete-pour-le-systeme-solaire","title":{"rendered":"Une Neuvi\u00e8me Plan\u00e8te pour le Syst\u00e8me Solaire ?"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span><b>C\u2019est une grande trouvaille dans le domaine de l\u2019astronomie.<\/b><\/p>\n<p>Des chercheurs ame\u0301ricains viennent d\u2019annoncer l\u2019existence probable d\u2019une neuvie\u0300me plane\u0300te dans le syste\u0300me solaire. L\u2019information a e\u0301te\u0301 publie\u0301e dans un article de la revue ame\u0301ricaine Astronomical Journal.<\/p>\n<p>D\u2019une masse environ dix fois supe\u0301rieure a\u0300 celle de la Terre, elle se trouve sur une orbite vingt fois plus e\u0301loigne\u0301e que celle de Neptune, qui e\u0301tait jusqu\u2019ici la plane\u0300te la plus lointaine du syste\u0300me solaire. Une orbite elliptique comple\u0300te autour du soleil qui prendrait entre 10 et 20 000 ans.<\/p>\n<p>C\u2019est en e\u0301tudiant les trajectoires d\u2019objets du syste\u0300me solaire qui se trouvent dans la me\u0302me re\u0301gion, que les scientifiques sont arrive\u0301s a\u0300 cette conclusion. Au vu de l\u2018e\u0301trangete\u0301 de celles-ci, les chercheurs ont donc conclu qu\u2019il devait y avoir dans le voisinage quelque chose de gros qui perturberait leur orbite. C\u2019est ainsi qu\u2019ils ont estime\u0301 qu\u2019il pourrait s\u2019agir d\u2019une 9e plane\u0300te.<\/p>\n<p>Un grand changement donc, car depuis le retrait du titre de plane\u0300te a\u0300 Pluton en 2006, notre syste\u0300me solaire n\u2019en comptait que huit. Selon les experts, seule une observation directe sur plusieurs anne\u0301es pourra confirmer de\u0301finitivement l\u2019existence de cette nouvelle plane\u0300te.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. C\u2019est une grande trouvaille dans le domaine de l\u2019astronomie. Des chercheurs ame\u0301ricains viennent d\u2019annoncer l\u2019existence probable d\u2019une neuvie\u0300me plane\u0300te dans le syste\u0300me solaire. L\u2019information a e\u0301te\u0301 publie\u0301e dans un article de la revue ame\u0301ricaine Astronomical Journal. D\u2019une masse environ dix fois supe\u0301rieure a\u0300 celle de la Terre, elle se trouve sur une [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":64273,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[5021,5022,5023,44],"class_list":["post-64274","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-exoplanetes","tag-exploration-spatiale","tag-recherche-spatiale","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Une Neuvi\u00e8me Plan\u00e8te pour le Syst\u00e8me Solaire ? - Senegal<\/title>\n<meta name=\"description\" content=\"C\u2019est une grande trouvaille dans le domaine de l\u2019astronomie. 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