{"id":4299,"date":"2015-11-23T05:48:32","date_gmt":"2015-11-23T05:48:32","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=4299"},"modified":"2015-11-30T05:50:29","modified_gmt":"2015-11-30T05:50:29","slug":"deux-planetes-dans-le-champ-du-coronographe-de-soho","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/","title":{"rendered":"Deux plan\u00e8tes dans le champ du coronographe de SOHO"},"content":{"rendered":"<p><strong>Tr\u00e8s proches du Soleil, les plan\u00e8tes Mercure et Saturne sont dans le champ du coronographe Lasco C3 de l&#8217;observatoire solaire SOHO.<\/strong><\/p>\n<p>L\u2019observatoire solaire <a href=\"http:\/\/sohowww.nascom.nasa.gov\/\" target=\"_blank\">SOHO<\/a> (<em>SOlar and Heliospheric Observatory<\/em>) est un satellite de 1,8 tonne. Plac\u00e9 sur son orbite en 1996, il surveille depuis 19 ans l\u2019activit\u00e9 du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/14\/un-filament-circulaire-geant-sest-forme-sur-le-soleil\/\" target=\"_blank\">Soleil<\/a>.<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" frameborder=\"0\" width=\"480\" height=\"270\" src=\"\/\/www.dailymotion.com\/embed\/video\/x2hwwty\" 0=\"allowfullscreen\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n\n<p style=\"text-align: center\"><strong>En vid\u00e9o : une gracieuse \u00e9ruption solaire film\u00e9e par SDO<\/strong><\/p>\n<p>Les coronographes Lasco C2 (champ \u00e9troit) et C3 (grand champ) sont destin\u00e9s \u00e0 \u00e9tudier la couronne solaire (Lasco signifie <em>Large Angle and Spectrometric Coronagraph<\/em>). Un cache central leur permet de masquer le Soleil, trop lumineux, pour voir ce qui se passe autour : des \u00e9ruptions solaires bien s\u00fbr, mais \u00e9galement les <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/05\/22\/le-coronographe-de-soho-devoile-lamas-des-pleiades\/\" target=\"_blank\">\u00e9toiles <\/a>et parfois des <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/02\/c2015-d1-la-comete-qui-defie-le-soleil-et-les-astronomes\/\" target=\"_blank\">com\u00e8tes kamikazes<\/a>.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg\" rel=\"lightbox[4299]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4306\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho-450x450.jpg\" alt=\"soho\" width=\"450\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho-450x450.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho-150x150.jpg 150w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg 1024w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Lorsque les plan\u00e8tes sont en conjonction avec le Soleil elles sont invisibles pour les observateurs terrestres mais il est possible de suivre leur d\u00e9placement dans le coronographe <a href=\"http:\/\/sohowww.nascom.nasa.gov\/data\/realtime\/c3\/512\/\" target=\"_blank\">Lasco C3<\/a> pendant quelques jours. C&#8217;est le cas pour <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/17\/les-pluies-detoiles-filantes-existent-aussi-sur-mercure\/\" target=\"_blank\">Mercure <\/a>(conjonction sup\u00e9rieure le 17 novembre, soit un alignement Terre-Soleil-Mercure) et <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/18\/titan-croise-encelade-derriere-les-anneaux-de-saturne\/\" target=\"_blank\">Saturne <\/a>(conjonction sup\u00e9rieure le 30 novembre, alignement Terre-Soleil-Saturne).<!--more--><\/p>\n<p>Mercure (magnitude -1) est entr\u00e9e dans le champ du coronographe Lasco C3 le 4 novembre et elle en sortira le 2 d\u00e9cembre (elle se d\u00e9place d&#8217;ouest en est). Saturne (magnitude 0,5), qui circule dans le sens inverse, est entr\u00e9e dans le m\u00eame champ le 20 novembre et elle y restera jusqu&#8217;au 9 d\u00e9cembre.<\/p>\n<p>Saturne redeviendra visible pour les Terriens avant l&#8217;aube dans la constellation d&#8217;Ophiuchus fin d\u00e9cembre et Mercure \u00e0 la m\u00eame \u00e9poque au cr\u00e9puscule dans la constellation du Sagittaire.<\/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>Tr\u00e8s proches du Soleil, les plan\u00e8tes Mercure et Saturne sont dans le champ du coronographe Lasco C3 de l&#8217;observatoire solaire SOHO. L\u2019observatoire solaire SOHO (SOlar and Heliospheric Observatory) est un satellite de 1,8 tonne. Plac\u00e9 sur son orbite en 1996, il surveille depuis 19 ans l\u2019activit\u00e9 du Soleil. En vid\u00e9o : une gracieuse \u00e9ruption solaire &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Deux plan\u00e8tes dans le champ du coronographe de SOHO<\/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":4306,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[86],"tags":[868,945,140,136,760],"class_list":["post-4299","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soleil-et-planetes","tag-coronographe","tag-lasco-c3","tag-mercure","tag-saturne","tag-soho"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Deux plan\u00e8tes dans le champ du coronographe de SOHO<\/title>\n<meta name=\"description\" content=\"Tr\u00e8s proches du Soleil, les plan\u00e8tes Mercure et Saturne sont dans le champ du coronographe Lasco C3 de l&#039;observatoire solaire SOHO.\" \/>\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\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Deux plan\u00e8tes dans le champ du coronographe de SOHO\" \/>\n<meta property=\"og:description\" content=\"Tr\u00e8s proches du Soleil, les plan\u00e8tes Mercure et Saturne sont dans le champ du coronographe Lasco C3 de l&#039;observatoire solaire SOHO.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/\" \/>\n<meta property=\"og:site_name\" content=\"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel\" \/>\n<meta property=\"article:published_time\" content=\"2015-11-23T05:48:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-11-30T05:50:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\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\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/\",\"name\":\"Deux plan\u00e8tes dans le champ du coronographe de SOHO\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg\",\"datePublished\":\"2015-11-23T05:48:32+00:00\",\"dateModified\":\"2015-11-30T05:50:29+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea\"},\"description\":\"Tr\u00e8s proches du Soleil, les plan\u00e8tes Mercure et Saturne sont dans le champ du coronographe Lasco C3 de l'observatoire solaire SOHO.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg\",\"width\":1024,\"height\":1024},{\"@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":"Deux plan\u00e8tes dans le champ du coronographe de SOHO","description":"Tr\u00e8s proches du Soleil, les plan\u00e8tes Mercure et Saturne sont dans le champ du coronographe Lasco C3 de l'observatoire solaire SOHO.","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\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/","og_locale":"fr_FR","og_type":"article","og_title":"Deux plan\u00e8tes dans le champ du coronographe de SOHO","og_description":"Tr\u00e8s proches du Soleil, les plan\u00e8tes Mercure et Saturne sont dans le champ du coronographe Lasco C3 de l'observatoire solaire SOHO.","og_url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/","og_site_name":"CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel","article_published_time":"2015-11-23T05:48:32+00:00","article_modified_time":"2015-11-30T05:50:29+00:00","og_image":[{"width":1024,"height":1024,"url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.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\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/","name":"Deux plan\u00e8tes dans le champ du coronographe de SOHO","isPartOf":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/#primaryimage"},"image":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg","datePublished":"2015-11-23T05:48:32+00:00","dateModified":"2015-11-30T05:50:29+00:00","author":{"@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/#\/schema\/person\/62b391b709c307783237b759b62731ea"},"description":"Tr\u00e8s proches du Soleil, les plan\u00e8tes Mercure et Saturne sont dans le champ du coronographe Lasco C3 de l'observatoire solaire SOHO.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/23\/deux-planetes-dans-le-champ-du-coronographe-de-soho\/#primaryimage","url":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg","contentUrl":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/11\/soho.jpg","width":1024,"height":1024},{"@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\/4299","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=4299"}],"version-history":[{"count":9,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/4299\/revisions"}],"predecessor-version":[{"id":4309,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/posts\/4299\/revisions\/4309"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media\/4306"}],"wp:attachment":[{"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/media?parent=4299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/categories?post=4299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-json\/wp\/v2\/tags?post=4299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}