{"id":1097,"date":"2014-11-12T19:27:32","date_gmt":"2014-11-12T19:27:32","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=1097"},"modified":"2014-11-14T16:07:13","modified_gmt":"2014-11-14T16:07:13","slug":"philae-envoie-ses-premieres-images","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/11\/12\/philae-envoie-ses-premieres-images\/","title":{"rendered":"Philae envoie ses premi\u00e8res images"},"content":{"rendered":"<p>Les 12 et 13 novembre resteront c\u00e9l\u00e8bres dans l&#8217;histoire de la conqu\u00eate du Syst\u00e8me solaire.<\/p>\n<p>Apr\u00e8s un voyage d&#8217;une d\u00e9cennie, l&#8217;atterrisseur Philae s&#8217;est en effet s\u00e9par\u00e9 de la sonde Rosetta le 12 novembre pour rejoindre la com\u00e8te 67P\/Churyumov-Gerasimenko (du nom des deux astronomes sovi\u00e9tiques qui ont d\u00e9couvert cet astre chevelu en 1969 et qui \u00e9taient pr\u00e9sents au si\u00e8ge de l&#8217;ESA pour suivre l&#8217;\u00e9v\u00e9nement).<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1119\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa-450x400.jpg\" alt=\"esa\" width=\"450\" height=\"400\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa-450x400.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa-1024x910.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa.jpg 1200w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Le <strong>6 novembre<\/strong> la sonde Rosetta avait photographi\u00e9 la com\u00e8te 67P \u00e0 une distance de 30 kilom\u00e8tres (image ci-dessus). Cet astre chevelu parcourt son orbite en un peu plus de 6 ans et tourne sur lui-m\u00eame en 12h30.<\/p>\n<p><strong>12 novembre<\/strong> :\u00a0Philae a envoy\u00e9 sa premi\u00e8re image (ci-dessous) juste apr\u00e8s sa s\u00e9paration de Rosetta en milieu de matin\u00e9e (9h35 heure de Paris). On distingue en haut de l&#8217;image un panneau solaire et une partie de Rosetta \u00e0 droite.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil3.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1099\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil3-450x450.jpg\" alt=\"phil3\" width=\"450\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil3-450x450.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil3-150x150.jpg 150w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil3.jpg 1024w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Un peu plus tard Rosetta a photographi\u00e9 Philae (images ci-dessous), confirmant que les pieds de l&#8217;atterrisseur s&#8217;\u00e9taient correctement d\u00e9ploy\u00e9s et que les instruments scientifiques fonctionnaient. La sonde a poursuivi sa trajectoire de fa\u00e7on \u00e0 assurer les futures liaisons entre l&#8217;atterrisseur et la Terre.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil1.png\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1098\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil1-450x214.png\" alt=\"phil1\" width=\"450\" height=\"214\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil1-450x214.png 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil1.png 750w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa7.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1132\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa7-450x325.jpg\" alt=\"esa7\" width=\"450\" height=\"325\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa7-450x325.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa7.jpg 710w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Image suivante : la com\u00e8te 67P\/Churyumov-Gerasimenko vue par la camera ROLIS\u00a0<span style=\"color: #141823\">(<em>ROsetta Lander Imaging System<\/em>)\u00a0<\/span>de Philae alors que l&#8217;atterrisseur est \u00e0 3 kilom\u00e8tres de sa cible. La zone d&#8217;atterrissage pr\u00e9vue a \u00e9t\u00e9 surnomm\u00e9e Agilkia (Agilkia est le\u00a0nom d&#8217;une \u00eele sur le Nil, en Egypte, o\u00f9 les ruines antiques de l&#8217;\u00eele de Philae ont \u00e9t\u00e9 d\u00e9plac\u00e9es suite \u00e0 la construction du barrage d&#8217;Assouan dans les ann\u00e9es 1970). La r\u00e9solution de l&#8217;image est de 3 m\u00e8tres par pixel.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil21.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1101\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil21-450x437.jpg\" alt=\"phil2\" width=\"450\" height=\"437\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil21-450x437.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil21.jpg 817w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Image suivante : derni\u00e8re image re\u00e7ue avant que l&#8217;atterrisseur ne touche le sol apr\u00e8s une descente de 7 heures \u00e0 environ 3 km\/h.<\/p>\n<p>La surface \u00e0 cet endroit semble recouverte d&#8217;une couche de poussi\u00e8re et de quelques rares cailloux, une information rassurante pour les scientifiques de la mission.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil4.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1102\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil4-450x444.jpg\" alt=\"phil4\" width=\"450\" height=\"444\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil4-450x444.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/phil4.jpg 726w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Le montage ci-dessous permet de voir la zone d&#8217;Agilkia photographi\u00e9e au cours de la descente de l&#8217;atterrisseur.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/ros.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1114\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/ros-450x171.jpg\" alt=\"ros\" width=\"450\" height=\"171\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/ros-450x171.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/ros.jpg 1000w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p><strong>12 novembre, 20h30<\/strong> : selon les informations communiqu\u00e9es par\u00a0Stephan Ulamec, responsable de Philae\u00a0au Centre europ\u00e9en d&#8217;op\u00e9rations spatiales (ESOC) \u00e0 Darmstadt (Allemagne) au cours du dernier point de presse de la journ\u00e9e, les deux harpons n&#8217;ont pas permis d&#8217;ancrer l&#8217;atterrisseur qui a peut-\u00eatre rebondi sur la com\u00e8te pour y retomber deux heures plus tard, un d\u00e9lai qui s&#8217;explique par la faible gravit\u00e9 \u00e0 sa surface.<\/p>\n<p><strong>Mise \u00e0 jour du 13 novembre<\/strong><\/p>\n<p><strong>10h30<\/strong>\u00a0: selon l&#8217;astrophysicien Francis Rocard l&#8217;atterrisseur a bien mis deux heures \u00e0 se stabiliser apr\u00e8s s&#8217;\u00eatre pos\u00e9 sur la com\u00e8te 67P vers 16 h30 (heure de Paris) le 12 novembre, comme le confirment les images floues obtenues \u00e0 ce moment-l\u00e0 par Philae. L&#8217;atterrisseur s&#8217;est enfonc\u00e9 de 4 centim\u00e8tres, confirmant que le sol d&#8217;Agilkia est assez mou. Pour le moment les scientifiques de l&#8217;ESA ne savent toujours pas si les harpons ont fonctionn\u00e9 mais ils sont optimistes car Philae et Rosetta communiquent entre eux et l&#8217;orbiteur peut donc continuer \u00e0 nous envoyer des informations.<\/p>\n<p><strong>11h15<\/strong> : voici la premi\u00e8re image prise par l&#8217;atterrisseur Philae \u00e0 la surface de la com\u00e8te \u00a067P\/Churyumov-Gerasimenko ! Cette image qui est un assemblage de 2 clich\u00e9s montre le sol environnant et l&#8217;un des pieds de Philae. Il semble que l&#8217;atterrisseur, apr\u00e8s plusieurs rebonds, se soit finalement pos\u00e9 inclin\u00e9 \u00e0 1 kilom\u00e8tre du premier point de contact avec la surface de la com\u00e8te.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/p1.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1123\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/p1-450x262.jpg\" alt=\"p1\" width=\"450\" height=\"262\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/p1-450x262.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/p1.jpg 960w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p><strong>15h30<\/strong> : au cours d&#8217;une conf\u00e9rence de presse au si\u00e8ge de l&#8217;ESA, les scientifiques ont pr\u00e9sent\u00e9 la zone (B) dans laquelle devait se trouver l&#8217;atterrisseur Philae apr\u00e8s son rebond au point A.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa3.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1127\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa3-450x260.jpg\" alt=\"esa3\" width=\"450\" height=\"260\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa3-450x260.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa3.jpg 880w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Ci-dessous gros plan sur la zone A, premier point d&#8217;impact de Philae sur la com\u00e8te\u00a067P\/Churyumov-Gerasimenko le 12 novembre en milieu d&#8217;apr\u00e8s-midi avant son rebond.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa6.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1130\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa6-450x450.jpg\" alt=\"esa6\" width=\"450\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa6-450x450.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa6-150x150.jpg 150w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa6.jpg 1024w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>La mosa\u00efque de 5 images (prises par la sonde Rosetta \u00e0 une distance de 18 kilom\u00e8tres) pr\u00e9sent\u00e9e ci-dessous montre la zone dans laquelle devrait d\u00e9sormais se trouver l&#8217;atterrisseur Philae.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa8.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1134\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa8-356x450.jpg\" alt=\"esa8\" width=\"356\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa8-356x450.jpg 356w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa8.jpg 554w\" sizes=\"auto, (max-width: 356px) 100vw, 356px\" \/><\/a><\/p>\n<p>Pour clore cette journ\u00e9e riche en \u00e9motions voici\u00a0le premier panorama pris depuis le sol de la com\u00e8te 67P. Il s&#8217;agit d&#8217;un\u00a0assemblage des images transmises par Philae avec d&#8217;un c\u00f4t\u00e9 le sol rocheux et de l&#8217;autre le ciel, l&#8217;atterrisseur (qui a \u00e9t\u00e9 dessin\u00e9 pour mieux comprendre l&#8217;orientation) \u00e9tant pench\u00e9 (il a 2 pieds sur 3 en contact avec le sol).<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa1.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1136\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa1-368x450.jpg\" alt=\"esa\" width=\"368\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa1-368x450.jpg 368w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/esa1.jpg 786w\" sizes=\"auto, (max-width: 368px) 100vw, 368px\" \/><\/a><\/p>\n<p>Un grand bravo \u00e0 tous les ing\u00e9nieurs, techniciens et scientifiques qui ont &#8220;port\u00e9&#8221; cette mission depuis 21 ans. Ci-dessous les membres de l&#8217;ESA r\u00e9unis au\u00a0Centre europ\u00e9en d&#8217;op\u00e9rations spatiales (ESOC) \u00e0 Darmstadt (Allemagne) pour la photo-souvenir (\u00a9 ESA\/J. Mai).<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/rosetta.jpg\" rel=\"lightbox[1097]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-1141\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/rosetta-450x299.jpg\" alt=\"rosetta\" width=\"450\" height=\"299\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/rosetta-450x299.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/rosetta-1024x682.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2014\/11\/rosetta.jpg 2048w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p><strong>La mise \u00e0 jour du 14 novembre est <a title=\"Philae : surprises et incertitudes\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/11\/14\/philae-surprises-incertitudes\/\" target=\"_blank\">ici<\/a>.<\/strong><\/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>Les 12 et 13 novembre resteront c\u00e9l\u00e8bres dans l&#8217;histoire de la conqu\u00eate du Syst\u00e8me solaire. Apr\u00e8s un voyage d&#8217;une d\u00e9cennie, l&#8217;atterrisseur Philae s&#8217;est en effet s\u00e9par\u00e9 de la sonde Rosetta le 12 novembre pour rejoindre la com\u00e8te 67P\/Churyumov-Gerasimenko (du nom des deux astronomes sovi\u00e9tiques qui ont d\u00e9couvert cet astre chevelu en 1969 et qui \u00e9taient &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/11\/12\/philae-envoie-ses-premieres-images\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Philae envoie ses premi\u00e8res images<\/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":1134,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[522,512,94,513,93,198,510,521],"class_list":["post-1097","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-67pchuryumov-gerasimenko","tag-agilkia","tag-astronome","tag-atterrisseur","tag-comete","tag-panneau-solaire","tag-philae","tag-rosetta"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>philae<\/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\/11\/12\/philae-envoie-ses-premieres-images\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"philae\" \/>\n<meta property=\"og:description\" content=\"Les 12 et 13 novembre resteront c\u00e9l\u00e8bres dans l&#8217;histoire de la conqu\u00eate du Syst\u00e8me solaire. 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