{"id":15292,"date":"2017-05-21T10:50:38","date_gmt":"2017-05-21T08:50:38","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=15292"},"modified":"2017-05-22T08:27:46","modified_gmt":"2017-05-22T06:27:46","slug":"21-may-2017-1050","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/21-may-2017-1050\/","title":{"rendered":"Ceres \u00e0 l&rsquo;opposition du soleil par la sonde DAWN"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Le vaisseau spatial Dawn de la NASA a observ\u00e9 avec succ\u00e8s Ceres \u00e0 l&rsquo;opposition le 29 avril, prenant des images d&rsquo;une position exacte entre le soleil et la surface de Ceres. Les sp\u00e9cialistes de la mission ont soigneusement man\u0153uvr\u00e9 Dawn dans une orbite sp\u00e9ciale pour que l&rsquo;engin spatial puisse voir Occator Crater, qui contient la zone la plus brillante de Ceres, \u00e0 partir de cette nouvelle perspective.<\/p>\n<p>&nbsp;<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15300\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/21-may-2017-1050\/ceres-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/05\/ceres.gif?fit=985%2C554&amp;ssl=1\" data-orig-size=\"985,554\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"ceres\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/05\/ceres.gif?fit=300%2C169&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/05\/ceres.gif?fit=800%2C450&amp;ssl=1\" class=\"alignnone size-full wp-image-15300\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/05\/ceres.gif?resize=985%2C554\" alt=\"\" width=\"985\" height=\"554\"\/><\/p>\n<p>Selon la NASA, dans la description accompagnant la nouvelle vid\u00e9o qui a \u00e9t\u00e9 diffus\u00e9e mardi 16 mai :<\/p>\n<blockquote><p>\u00ab D\u2019apr\u00e8s les donn\u00e9es provenant des t\u00e9lescopes terrestres et des engins spatiaux qui avaient d\u00e9j\u00e0 vu les corps plan\u00e9taires \u00e0 l\u2019opposition, les scientifiques ont correctement pr\u00e9dit que C\u00e9r\u00e8s appara\u00eetrait plus brillante dans cette configuration d\u2019opposition.<\/p>\n<p>Cette augmentation de la luminosit\u00e9, ou \u00ab pouss\u00e9e \u00bb, rapporte la taille des grains de mati\u00e8re \u00e0 la surface, ainsi que la porosit\u00e9 de ces mat\u00e9riaux. \u00a0\u00bb<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p>Dawn a pris les photos qui composent la vid\u00e9o le 29 avril, \u00e0 une distance d\u2019environ 19 300 km. Selon la NASA, les membres de l\u2019\u00e9quipe de la mission ont modifi\u00e9 l\u2019orbite de la sonde afin d\u2019observer le crat\u00e8re Occator de 92 km de diam\u00e8tre de ce point de vue de l\u2019opposition.<\/p>\n<p>Occator se distingue clairement dans la vid\u00e9o : il abrite le plus brillant des myst\u00e9rieux points lumineux de C\u00e9r\u00e8s, qui selon les scientifiques r\u00e9v\u00e8lent la pr\u00e9sence d\u2019un certain type de sel sur la surface du corps.<\/p><\/blockquote>\n<p>Le mois dernier, Dawn a perdu la troisi\u00e8me des quatre roues de r\u00e9action qui maintiennent son orientation. Mais la NASA a indiqu\u00e9 que cette panne n\u2019a pas trop affect\u00e9 la mission de la sonde, les contr\u00f4leurs l\u2019orientent avec ses propulseurs \u00e0 hydrazine et continueront de le faire \u00e0 l\u2019avenir.<\/p>\n<p>Transmis par Nanuq<\/p>\n<p>sources :&nbsp;<a href=\"https:\/\/www.jpl.nasa.gov\/news\/news.php?feature=6830\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.jpl.nasa.gov\/<\/a>&nbsp;\/&nbsp;<a href=\"https:\/\/www.nasa.gov\/feature\/jpl\/movie-shows-ceres-at-opposition-from-sun\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/www.nasa.gov\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"15292\">(236)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Le vaisseau spatial Dawn de la NASA a observ\u00e9 avec succ\u00e8s Ceres \u00e0 l&rsquo;opposition le 29 avril, prenant des images&#8230;<\/p>\n","protected":false},"author":1,"featured_media":6538,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"chat","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[22],"tags":[4285,4287,117,702],"class_list":["post-15292","post","type-post","status-publish","format-chat","has-post-thumbnail","hentry","category-espace","tag-ceres","tag-dawn","tag-espace","tag-sonde","post_format-post-format-chat","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/pia19547-1041b.gif?fit=1041%2C894&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-3YE","jetpack-related-posts":[{"id":6537,"url":"https:\/\/www.laterredufutur.com\/accueil\/nouvelles-images-exceptionnelles-de-ceres\/","url_meta":{"origin":15292,"position":0},"title":"Nouvelles images exceptionnelles de C\u00e9r\u00e8s","author":"Admin","date":"11 mai 2015","format":false,"excerpt":"Il y a quelques semaines, C\u00e9r\u00e8s avait fait la une, un point\u00a0lumineux avait \u00e9t\u00e9 observ\u00e9 et restait tout \u00e0 fait myst\u00e9rieux. Voici\u00a0une nouvelle s\u00e9quence d'images o\u00f9 la\u00a0r\u00e9solution est nettement sup\u00e9rieure et elles ont \u00e9t\u00e9 prises par la sonde Dawn de la NASA du 3 et 4 mai 2015. Les myst\u00e9rieux\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/ceres.jpg?fit=800%2C600&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/ceres.jpg?fit=800%2C600&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/ceres.jpg?fit=800%2C600&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/ceres.jpg?fit=800%2C600&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":9868,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-sonde-dawn-detecte-la-presence-dammoniac-sur-ceres\/","url_meta":{"origin":15292,"position":1},"title":"La sonde DAWN d\u00e9tecte la pr\u00e9sence d&rsquo;ammoniac sur C\u00e9r\u00e8s","author":"Admin","date":"10 d\u00e9cembre 2015","format":false,"excerpt":"Des traces d'argile contenant de l'ammoniac ! Ces donn\u00e9es ont \u00e9t\u00e9\u00a0enregistr\u00e9es par l'instrument de la sonde spatiale Aube VIR de\u00a0la surface de la plan\u00e8te naine C\u00e9r\u00e8s. Les r\u00e9sultats, obtenus gr\u00e2ce au\u00a0VIR du spectrom\u00e8tre d'imagerie, faite par Selex Galileo avec la coordination et le financement de l'ASI et l'orientation scientifique IAPS-INAF,\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/12\/ceres.png?fit=644%2C362&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/12\/ceres.png?fit=644%2C362&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/12\/ceres.png?fit=644%2C362&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":8147,"url":"https:\/\/www.laterredufutur.com\/accueil\/nouvelle-photo-de-ceres-qui-apporte-plus-de-precision-visuelle\/","url_meta":{"origin":15292,"position":2},"title":"Nouvelle photo de C\u00e9r\u00e8s qui apporte plus de pr\u00e9cisions visuelles","author":"Admin","date":"9 septembre 2015","format":false,"excerpt":"Depuis son orbite actuelle autour de la plan\u00e8te naine C\u00e9r\u00e8s, la sonde Dawn revisite les curiosit\u00e9s qu'elle a d\u00e9couvertes au cours des derniers mois. Parmi elles, il y a ces myst\u00e9rieuses taches blanches, en apparence \u00e9clatantes au beau milieu d'un crat\u00e8re d'impact, qui a re\u00e7u depuis le nom d'Occator. Sur\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/Ceres.jpg?fit=960%2C960&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/Ceres.jpg?fit=960%2C960&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/Ceres.jpg?fit=960%2C960&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/09\/Ceres.jpg?fit=960%2C960&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":7514,"url":"https:\/\/www.laterredufutur.com\/accueil\/ceres-apres-les-points-lumineux-une-mysterieuse-pyramide\/","url_meta":{"origin":15292,"position":3},"title":"C\u00e9r\u00e8s: apr\u00e8s les points lumineux, une myst\u00e9rieuse pyramide","author":"Admin","date":"30 juin 2015","format":false,"excerpt":"Une montagne en forme de pyramide haute comme le Mont Blanc, plant\u00e9e au milieu d'une plaine sur une \"plan\u00e8te naine\". C'est le dernier myst\u00e8re d\u00e9couvert sur C\u00e9r\u00e8s par la sonde Dawn. D\u00e9cid\u00e9ment, C\u00e9r\u00e8s entretient le myst\u00e8re. La plan\u00e8te naine, scrut\u00e9e par la sonde am\u00e9ricaine Dawn en orbite autour d'elle depuis\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/ceres-pyramide.jpg?fit=800%2C450&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/ceres-pyramide.jpg?fit=800%2C450&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/ceres-pyramide.jpg?fit=800%2C450&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/ceres-pyramide.jpg?fit=800%2C450&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":11566,"url":"https:\/\/www.laterredufutur.com\/accueil\/ceres-devoilee-dans-ses-moindres-details\/","url_meta":{"origin":15292,"position":4},"title":"C\u00e9r\u00e8s d\u00e9voil\u00e9e dans ses moindres d\u00e9tails","author":"Admin","date":"24 mars 2016","format":false,"excerpt":"Notre vaisseau spatial Dawn\u00a0a r\u00e9v\u00e9l\u00e9 des images merveilleuses de l'orbite la plus basse de\u00a0la\u00a0plan\u00e8te naine Ceres, r\u00e9v\u00e9lant les points lumineux et les diff\u00e9rences de couleur sur la surface. Jetez un coup d' oeil... Ces images sont in\u00e9dites : https:\/\/youtu.be\/nJiw2NxqoBU?list=PLTiv_XWHnOZpbLZz4C2iQW2bgfdzKMbhS C\u00e9r\u00e8s d\u00e9voil\u00e9e dans ses moindres d\u00e9tails \u00a0 \u00a0","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/taches-ceres.jpg?fit=975%2C548&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/taches-ceres.jpg?fit=975%2C548&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/taches-ceres.jpg?fit=975%2C548&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/03\/taches-ceres.jpg?fit=975%2C548&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":21863,"url":"https:\/\/www.laterredufutur.com\/accueil\/vers-une-colonie-spatiale-dans-la-ceinture-dasteroides-dici-15-ans\/","url_meta":{"origin":15292,"position":5},"title":"Vers une colonie spatiale dans la ceinture d&rsquo;ast\u00e9ro\u00efdes d&rsquo;ici 15 ANS","author":"Admin","date":"23 janvier 2021","format":false,"excerpt":"Les humains pourraient vivre sur des orbes g\u00e9ants flottant dans la ceinture d'ast\u00e9ro\u00efdes entre Mars et Jupiter dans les 15 prochaines ann\u00e9es. C'est ce que maintient le scientifique de haut niveau Pekka Janhunen, qui affirme que des millions de personnes pourraient habiter une m\u00e9gapole dans l'espace d'ici 2036. Le Dr\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/01\/colonisation-spatiale.jpg?fit=1200%2C936&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15292","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=15292"}],"version-history":[{"count":5,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15292\/revisions"}],"predecessor-version":[{"id":15303,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15292\/revisions\/15303"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/6538"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=15292"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=15292"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=15292"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}