{"id":3175,"date":"2015-07-08T05:10:00","date_gmt":"2015-07-08T05:10:00","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=3175"},"modified":"2015-07-20T07:17:09","modified_gmt":"2015-07-20T07:17:09","slug":"la-sonde-new-horizons-survolera-pluton-le-14-juillet","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/07\/08\/la-sonde-new-horizons-survolera-pluton-le-14-juillet\/","title":{"rendered":"La sonde New Horizons survolera Pluton le 14 juillet"},"content":{"rendered":"<p><strong>Au terme d&#8217;un voyage de 9 ans, la sonde am\u00e9ricaine New Horizons survolera la plan\u00e8te naine Pluton le 14 juillet \u00e0 une distance de 12500 km.\u00a0<\/strong><\/p>\n<p>Lanc\u00e9e le 19 janvier 2006, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/09\/reveille-la-sonde-new-horizons\/\" target=\"_blank\">New Horizons<\/a> est une sonde de moins de 500 kg aliment\u00e9e en \u00e9nergie par 11 kg de plutonium (son voyage l&#8217;emm\u00e8ne trop loin du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/20\/20-mars-le-soleil-avait-bien-rendez-vous-avec-la-lune\/\" target=\"_blank\">Soleil <\/a>pour pouvoir utiliser des panneaux photovolta\u00efques).<\/p>\n<p>Elle dispose de 8 instruments scientifiques dont un spectrom\u00e8tre qui vient de confirmer la pr\u00e9sence de m\u00e9thane sur Pluton sous forme de glace (la temp\u00e9rature de surface avoisine les -223\u00b0C).<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/pluton.jpg\" rel=\"lightbox[3175]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3176\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/pluton-450x338.jpg\" alt=\"pluton\" width=\"450\" height=\"338\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/pluton-450x338.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/pluton-1024x768.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/07\/pluton.jpg 1200w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>La sonde est \u00e9galement \u00a0dot\u00e9e d&#8217;un imageur haute r\u00e9solution LORRI (<em>LOng Range Reconnaissance Imager<\/em>) qui nous d\u00e9voile peu \u00e0 peu Pluton (un astre d\u00e9couvert en 1930 par l&#8217;astronome am\u00e9ricain\u00a0Clyde Tombaugh) ainsi que ses cinq satellites :\u00a0Charon, Hydre, Nix, Kerb\u00e9ros et Styx.<\/p>\n<p><!--more-->L&#8217;image ci-dessus a \u00e9t\u00e9 r\u00e9alis\u00e9e le 3 juillet, alors que la sonde New Horizons se trouvait \u00e0 un peu plus de 12 millions de km de Pluton. Les plan\u00e9tologues s&#8217;interrogent encore sur l&#8217;origine des formations claires et sombres visibles sur l&#8217;un des h\u00e9misph\u00e8res de la plan\u00e8te naine.<\/p>\n<p>Vous pourrez d\u00e9couvrir les prochaines photographies prises par la sonde et suivre son survol de Pluton sur le site de la mission <a href=\"http:\/\/www.nasa.gov\/mission_pages\/newhorizons\/main\/index.html\" target=\"_blank\">New Horizons<\/a>.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Au terme d&#8217;un voyage de 9 ans, la sonde am\u00e9ricaine New Horizons survolera la plan\u00e8te naine Pluton le 14 juillet \u00e0 une distance de 12500 km.\u00a0 Lanc\u00e9e le 19 janvier 2006, New Horizons est une sonde de moins de 500 kg aliment\u00e9e en \u00e9nergie par 11 kg de plutonium (son voyage l&#8217;emm\u00e8ne trop loin du &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/07\/08\/la-sonde-new-horizons-survolera-pluton-le-14-juillet\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">La sonde New Horizons survolera Pluton le 14 juillet<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":3176,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[1143,486,627,625,628],"class_list":["post-3175","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-clyde-tombaugh","tag-nasa","tag-planete-naine","tag-pluton","tag-sonde-new-horizons"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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