{"id":532,"date":"2014-05-30T05:52:57","date_gmt":"2014-05-30T05:52:57","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=532"},"modified":"2014-07-06T07:49:03","modified_gmt":"2014-07-06T07:49:03","slug":"etoile-filante","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/30\/etoile-filante\/","title":{"rendered":"Une \u00e9toile filante"},"content":{"rendered":"

En astronomie, certains noms rel\u00e8vent plus de l’usage populaire que de la r\u00e9alit\u00e9 scientifique. C’est par exemple le cas de “l’\u00e9toile du berger”, qui est en fait la plan\u00e8te V\u00e9nus<\/a>. M\u00eame chose pour le terme “\u00e9toiles filantes” : il ne s’agit nullement d’\u00e9toiles<\/a> mais tout simplement de poussi\u00e8res abandonn\u00e9es par les com\u00e8tes<\/a> sur leur orbite.<\/p>\n

\"etoilfilant\"<\/a><\/p>\n

Lorsque la Terre coupe la trajectoire de ces petites particules, elles p\u00e9n\u00e8trent dans l’atmosph\u00e8re \u00e0 grande vitesse et s’y consument sous la forme d’une br\u00e8ve trace lumineuse.<\/p>\n

L’essaim d’\u00e9toiles filantes le plus connu est celui des Pers\u00e9ides : abandonn\u00e9es par la com\u00e8te Swift-Tuttle, ces poussi\u00e8res cosmiques rencontrent la Terre chaque mois d’ao\u00fbt. On les appelle Pers\u00e9ides car elles semblent s’\u00e9chapper de la constellation de Pers\u00e9e.<\/p>\n","protected":false},"excerpt":{"rendered":"

En astronomie, certains noms rel\u00e8vent plus de l’usage populaire que de la r\u00e9alit\u00e9 scientifique. C’est par exemple le cas de “l’\u00e9toile du berger”, qui est en fait la plan\u00e8te V\u00e9nus. M\u00eame chose pour le terme “\u00e9toiles filantes” : il ne s’agit nullement d’\u00e9toiles mais tout simplement de poussi\u00e8res abandonn\u00e9es par les com\u00e8tes sur leur orbite. … Continuer la lecture de Une \u00e9toile filante<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":533,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[85],"tags":[93,176,171,89,174,173,172,175,159],"class_list":["post-532","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-meteores","tag-comete","tag-comete-swift-tuttle","tag-constellation-de-persee","tag-etoile","tag-etoile-du-berger","tag-orbite","tag-perseides","tag-terre","tag-venus"],"yoast_head":"\netoile filante<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/30\/etoile-filante\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"etoile filante\" \/>\n<meta property=\"og:description\" content=\"En astronomie, certains noms rel\u00e8vent plus de l’usage populaire que de la r\u00e9alit\u00e9 scientifique. 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