{"id":37215,"date":"2025-11-26T12:41:04","date_gmt":"2025-11-26T12:41:04","guid":{"rendered":"https:\/\/snipool.com\/?p=37215"},"modified":"2025-11-26T12:41:04","modified_gmt":"2025-11-26T12:41:04","slug":"voyager-2-saturne-5-et-hubble","status":"publish","type":"post","link":"https:\/\/snipool.com\/fr\/voyager-2-saturne-5-et-hubble\/","title":{"rendered":"Voyager 2, Saturne 5 et Hubble"},"content":{"rendered":"<p><strong>Voyager 2<\/strong><\/p>\n<p>La sonde am\u00e9ricaine <em>Voyager 2<\/em>, lanc\u00e9e en septembre 1977, r\u00e9alise le survol de la plan\u00e8te Neptune et de son principal satellite Triton. Le vol fait partie du programme \u00ab\u00a0Grand Tour\u00a0\u00bb, mis au point par la NASA pour profiter de l\u2019alignement Jupiter- Saturne- Uranus- Neptune\u00a0: un \u00e9v\u00e9nement exceptionnel, qui se produit que tous les 175 ans.<\/p>\n<p>Avant de quitter le syst\u00e8me solaire, <em>Voyager 2<\/em> survole Jupiter et Saturne et continue sa course vers Uranus et Neptune. La sonde est \u00e9quip\u00e9e d\u2019ordinateurs et de moteurs, qui effectuent corrections et modifications de trajectoires, en suivant les instruction transmises depuis la Terre. <em>Voyager 2<\/em> dispose de cam\u00e9ras de t\u00e9l\u00e9vision, des instruments d\u2019observation et de mesures scientifiques. La sonde transmet des images \u00e0 haute d\u00e9finition des plan\u00e8tes et de leurs satellites. Elle parvient aussi \u00e0 recueillir de nombreuses informations sur la t\u00e9mp\u00e9rature et la circulation des atmosph\u00e8res, sur les champs magn\u00e9tiques et la composition chimique des plan\u00e8tes explor\u00e9es.<\/p>\n<p><strong>Saturne 5<\/strong><\/p>\n<p>La fus\u00e9e <em>Saturne 5<\/em> d\u00e9colle de cap Canaveral, en Floride, le 16 juillet 1969. Elle emporte le vaisseau spatial <em>Apollo 11<\/em> et trois membres d\u2019\u00e9quipage\u00a0: Neil Armstrong, chef de la mission, Edwin Aldrin et Michael Collins. <em>Apollo 11<\/em> poss\u00e8de une cabine de pilotage, un compartiment moteur et un module lunaire, le LEM.<\/p>\n<p>Le 20 juillet, le LEM, o\u00f9 se trouvent Armstrong et son coll\u00e8gue Aldrin, se d\u00e9tache de la capsule Apollo, pilot\u00e9e par Collins. Apr\u00e8s de d\u00e9licates manoeuvres, le LEM touche la surface de la Lune. Le 21 juillet, Armstrong s\u2019extrait du module lunaire. Rev\u00eatu d\u2019un scaphandre, il fait face \u00e0 la tr\u00e8s faible pesanteur et pose pied sur la Lune. Il est rejoint par Aldrin, et pendant deux heures, Armstrong collecte des \u00e9chantillons et pose des instruments scientifiques. L\u2019\u00e9v\u00e9nement est transmis sur Terre et des millions de terriens, post\u00e9s devant la t\u00e9l\u00e9, entendent les mots\u00a0: \u00ab\u00a0<em>C\u2019est un petit pas pour l\u2019homme, mais un bond de g\u00e9ant pour l\u2019humanit\u00e9<\/em>\u00a0\u00bb.<\/p>\n<p><strong>Hubble<\/strong><\/p>\n<p>Le t\u00e9lescope spatial <em>Hubble<\/em> a \u00e9t\u00e9 mis en orbite en 1990 par la navette am\u00e9ricaine Discovery, \u00e0 600 km d\u2019altitude de la Terre. <em>Hubble<\/em> est orient\u00e9 par des ordinateurs de bord et aliment\u00e9 en \u00e9nergie par des panneaux solaires. Il est \u00e9quip\u00e9 d\u2019un miroir principal de 2,40 m de diam\u00e8tre, de deux chambres photographiques et de deux spectographes. Le t\u00e9lescope filme les confins de l\u2019Univers et rapporte des images spectaculaires. <em>Hubble<\/em> voit ce qu\u2019on ne peut pas saisir en observant le ciel depuis la Terre.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voyager 2 La sonde am\u00e9ricaine Voyager 2, lanc\u00e9e en septembre 1977, r\u00e9alise le survol de la plan\u00e8te Neptune et de son principal satellite Triton. Le vol fait partie du programme \u00ab\u00a0Grand Tour\u00a0\u00bb, mis au point par la NASA pour profiter de l\u2019alignement Jupiter- Saturne- Uranus- Neptune\u00a0: un \u00e9v\u00e9nement exceptionnel, qui se produit que tous les &hellip;<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1089],"tags":[10801,13806,13639,13808,10802,13805,13807,13809,2816],"class_list":["post-37215","post","type-post","status-publish","format-standard","hentry","category-le-monde","tag-apollo-11","tag-hubble","tag-lunivers","tag-la-planete-neptune","tag-neil-armstrong","tag-saturne-4","tag-sonde-americaine","tag-vaisseau-spatial","tag-voyager-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Voyager 2, Saturne 5 et Hubble - Snipool<\/title>\n<meta name=\"description\" content=\"Le t\u00e9lescope spatial Hubble a \u00e9t\u00e9 mis en orbite en 1990 par la navette am\u00e9ricaine Discovery.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/snipool.com\/fr\/voyager-2-saturne-5-et-hubble\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Voyager 2, Saturne 5 et Hubble - 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