{"id":5932,"date":"2016-06-23T15:22:56","date_gmt":"2016-06-23T15:22:56","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=5932"},"modified":"2016-07-04T16:46:03","modified_gmt":"2016-07-04T16:46:03","slug":"mimas-promethee-devant-anneaux-de-saturne","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/","title":{"rendered":"Mimas et Prom\u00e9th\u00e9e devant les anneaux de Saturne"},"content":{"rendered":"<p><strong>La sonde Cassini a photographi\u00e9 ensemble Mimas et Prom\u00e9th\u00e9e, deux satellites de Saturne qui ne se ressemblent pas du tout.\u00a0<\/strong><\/p>\n<p>Arriv\u00e9e aux abords de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/03\/02\/partie-de-cache-cache-dans-la-banlieue-de-saturne\/\" target=\"_blank\">Saturne <\/a>en juin 2004, la sonde am\u00e9ricaine <a href=\"https:\/\/www.nasa.gov\/mission_pages\/cassini\/main\/index.html\" target=\"_blank\">Cassini<\/a>\u00a0poursuit inlassablement ses observations scientifiques, nous envoyant r\u00e9guli\u00e8rement d\u2019incroyables images de la plan\u00e8te, de ses anneaux et de ses satellites. Cassini est l\u2019une des plus grosses sondes interplan\u00e9taires jamais construites : elle p\u00e8se 2.150 kg sans compter les 350 kg du module <a href=\"https:\/\/www.nasa.gov\/mission_pages\/cassini\/spacecraft\/huygens.html#.V02vASG8or0\" target=\"_blank\">Huygens <\/a>(qui a \u00e9t\u00e9 largu\u00e9 sur <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/01\/17\/huygens-sur-titan-cetait-il-y-10-ans\/\" target=\"_blank\">Titan <\/a>le 14 janvier 2005)\u00a0et plus de 3 tonnes d\u2019hydrazine pour la propulsion. La sonde mesure pr\u00e8s de 7 m\u00e8tres de haut et 4 m\u00e8tres de largeur et emporte 12 instruments scientifiques.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg\" rel=\"lightbox[5932]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-5933\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus-450x327.jpg\" alt=\"Mimas_Prometheus\" width=\"450\" height=\"327\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus-450x327.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus-768x559.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg 1020w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>L&#8217;image ci-dessus nous montre les satellites Mimas et Prom\u00e9th\u00e9e. Mimas, d\u00e9couvert en 1789 par l&#8217;astronome germano-britannique <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/12\/telescope-william-herschel\/\" target=\"_blank\">William Herschel<\/a>, est le satellite sph\u00e9ro\u00efde le plus petit de Saturne avec un diam\u00e8tre d&#8217;environ 400 km.<!--more--><\/p>\n<p>En \u00e9tudiant la rotation de Mimas \u00e0 partir des images fournies par la sonde Cassini, les astronomes ont remarqu\u00e9 que cette lune pr\u00e9sente des oscillations qui pourraient s&#8217;expliquer par la pr\u00e9sence d&#8217;un noyau allong\u00e9 ou d&#8217;un oc\u00e9an sous la cro\u00fbte de glace comme c&#8217;est le cas pour <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/10\/18\/gros-plan-sur-la-banquise-dencelade-satellite-de-saturne\/\" target=\"_blank\">Encelade<\/a>.<\/p>\n<p>Prom\u00e9th\u00e9e est un petit satellite irr\u00e9gulier (119 km X 87 km X 61 km) d\u00e9couvert en octobre 1980 en examinant des photographies prises par la sonde <em>Voyager 1<\/em>. Prom\u00e9th\u00e9e est un satellite berger de l&#8217;anneau F dont il arrache de la mati\u00e8re chaque fois qu&#8217;il s&#8217;en approche comme le montre cette petite animation r\u00e9alis\u00e9e par la NASA.<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" width=\"420\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/ys7zkU4jyaQ\" frameborder=\"0\" 0=\"allowfullscreen&gt;&lt;\/iframe\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>La sonde Cassini a photographi\u00e9 ensemble Mimas et Prom\u00e9th\u00e9e, deux satellites de Saturne qui ne se ressemblent pas du tout.\u00a0 Arriv\u00e9e aux abords de Saturne en juin 2004, la sonde am\u00e9ricaine Cassini\u00a0poursuit inlassablement ses observations scientifiques, nous envoyant r\u00e9guli\u00e8rement d\u2019incroyables images de la plan\u00e8te, de ses anneaux et de ses satellites. Cassini est l\u2019une des &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Mimas et Prom\u00e9th\u00e9e devant les anneaux de Saturne<\/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":5933,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[86],"tags":[646,939,486,1704,136,754,1705,129],"class_list":["post-5932","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soleil-et-planetes","tag-encelade","tag-mimas","tag-nasa","tag-promethee","tag-saturne","tag-sonde-cassini","tag-voyager-1","tag-william-herschel"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mimas et Prom\u00e9th\u00e9e devant les anneaux de Saturne<\/title>\n<meta name=\"description\" content=\"La sonde Cassini a photographi\u00e9 ensemble Mimas et Prom\u00e9th\u00e9e, deux satellites de Saturne qui ne se ressemblent pas du tout.\" \/>\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\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Mimas et Prom\u00e9th\u00e9e devant les anneaux de Saturne\" \/>\n<meta property=\"og:description\" content=\"La sonde Cassini a photographi\u00e9 ensemble Mimas et Prom\u00e9th\u00e9e, deux satellites de Saturne qui ne se ressemblent pas du tout.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/\" \/>\n<meta property=\"og:site_name\" content=\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\" \/>\n<meta property=\"article:published_time\" content=\"2016-06-23T15:22:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-07-04T16:46:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1020\" \/>\n\t<meta property=\"og:image:height\" content=\"742\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jean-Baptiste FELDMANN\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jean-Baptiste FELDMANN\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/\",\"name\":\"Mimas et Prom\u00e9th\u00e9e devant les anneaux de Saturne\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg\",\"datePublished\":\"2016-06-23T15:22:56+00:00\",\"dateModified\":\"2016-07-04T16:46:03+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\"},\"description\":\"La sonde Cassini a photographi\u00e9 ensemble Mimas et Prom\u00e9th\u00e9e, deux satellites de Saturne qui ne se ressemblent pas du tout.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg\",\"width\":1020,\"height\":742},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/\",\"name\":\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\",\"description\":\"&quot;J&#039;ai en moi un besoin terrible. Dirais-je le mot? La religion. Alors, je sors la nuit et je peins des \u00e9toiles.&quot;  Vincent van Gogh\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\",\"name\":\"Jean-Baptiste FELDMANN\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g\",\"caption\":\"Jean-Baptiste FELDMANN\"},\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/author\/jbfe\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Mimas et Prom\u00e9th\u00e9e devant les anneaux de Saturne","description":"La sonde Cassini a photographi\u00e9 ensemble Mimas et Prom\u00e9th\u00e9e, deux satellites de Saturne qui ne se ressemblent pas du tout.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/","og_locale":"fr_FR","og_type":"article","og_title":"Mimas et Prom\u00e9th\u00e9e devant les anneaux de Saturne","og_description":"La sonde Cassini a photographi\u00e9 ensemble Mimas et Prom\u00e9th\u00e9e, deux satellites de Saturne qui ne se ressemblent pas du tout.","og_url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/","og_site_name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","article_published_time":"2016-06-23T15:22:56+00:00","article_modified_time":"2016-07-04T16:46:03+00:00","og_image":[{"width":1020,"height":742,"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg","type":"image\/jpeg"}],"author":"Jean-Baptiste FELDMANN","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Jean-Baptiste FELDMANN","Dur\u00e9e de lecture estim\u00e9e":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/","name":"Mimas et Prom\u00e9th\u00e9e devant les anneaux de Saturne","isPartOf":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/#primaryimage"},"image":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg","datePublished":"2016-06-23T15:22:56+00:00","dateModified":"2016-07-04T16:46:03+00:00","author":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea"},"description":"La sonde Cassini a photographi\u00e9 ensemble Mimas et Prom\u00e9th\u00e9e, deux satellites de Saturne qui ne se ressemblent pas du tout.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/23\/mimas-promethee-devant-anneaux-de-saturne\/#primaryimage","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg","contentUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/Mimas_Prometheus.jpg","width":1020,"height":742},{"@type":"WebSite","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/","name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","description":"&quot;J&#039;ai en moi un besoin terrible. Dirais-je le mot? La religion. Alors, je sors la nuit et je peins des \u00e9toiles.&quot;  Vincent van Gogh","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blogs.futura-sciences.com\/feldmann\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea","name":"Jean-Baptiste FELDMANN","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/41f96607fde7a81a14570eec74177c42?s=96&d=mm&r=g","caption":"Jean-Baptiste FELDMANN"},"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/author\/jbfe\/"}]}},"_links":{"self":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/5932","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/comments?post=5932"}],"version-history":[{"count":3,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/5932\/revisions"}],"predecessor-version":[{"id":5936,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/5932\/revisions\/5936"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media\/5933"}],"wp:attachment":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media?parent=5932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/categories?post=5932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/tags?post=5932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}