{"id":1174,"date":"2026-09-02T09:53:45","date_gmt":"2026-09-02T09:53:45","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/frankel\/?p=1174"},"modified":"2026-09-02T09:53:45","modified_gmt":"2026-09-02T09:53:45","slug":"et-une-eclipse-en-meme-temps-sur-mars","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/","title":{"rendered":"Et une \u00e9clipse en m\u00eame temps sur Mars\u00a0!"},"content":{"rendered":"\r\n

Par une heureuse co\u00efncidence, une \u00e9clipse de soleil avait \u00e9galement lieu sur Mars en ce 12 ao\u00fbt, par sa petite lune Phobos, au-dessus du crat\u00e8re Jezero. Elle a \u00e9t\u00e9 photographi\u00e9e par le rover Perseverance<\/em>.<\/p>\r\n

\"\"<\/a>
\u00c9clipse ou “transit” de Phobos devant le Soleil.<\/figcaption><\/figure>\r\n


Comme le petit corps mesure moins de 30\u00a0km de taille \u2013 mais il orbite en rase motte \u00e0 5000\u00a0km d’altitude, un gros diam\u00e8tre apparent qui compense en partie cette petite taille\u00a0\u2013 il ne couvre pas totalement le Soleil lors de son passage. Sur Terre, on appellerait cela une \u00e9clipse “partielle” ou “annulaire” puisque le disque solaire d\u00e9borde de toutes parts\u00a0; en plan\u00e9tologie, on appelle un tel passage un “transit”.
La luminosit\u00e9, sur la trajectoire de cette p\u00e9nombre, ne baisse pas de mani\u00e8re tr\u00e8s spectaculaire. D’autre part, le transit est rapide, vu la vitesse orbitale tr\u00e8s \u00e9lev\u00e9e de Phobos : une trentaine de secondes, alors que sur Terre certaines \u00e9clipses de soleil durent jusqu’\u00e0 7 minutes dans le meilleur des cas. Pas de quoi acheter un billet pour Mars.<\/p>\r\n","protected":false},"excerpt":{"rendered":"

Par une heureuse co\u00efncidence, une \u00e9clipse de soleil avait \u00e9galement lieu sur Mars en ce 12 ao\u00fbt, par sa petite lune Phobos, au-dessus du crat\u00e8re Jezero. Elle a \u00e9t\u00e9 photographi\u00e9e par le rover Perseverance. Comme le petit corps mesure moins de 30\u00a0km de taille \u2013 mais il orbite en rase motte \u00e0 5000\u00a0km d’altitude, un … Continuer la lecture de Et une \u00e9clipse en m\u00eame temps sur Mars\u00a0!<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[13,4],"tags":[],"class_list":["post-1174","post","type-post","status-publish","format-standard","hentry","category-actualites","category-sciences"],"yoast_head":"\nEt une \u00e9clipse en m\u00eame temps sur Mars\u00a0! - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue<\/title>\n<meta name=\"description\" content=\"Mars conna\u00eet des \u00e9clipses de Soleil, appel\u00e9es "transits", lorsque l'astre du jour est partiellement cach\u00e9 par Phobos, sa petite lune.\" \/>\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\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Charles Frankel\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/\",\"name\":\"Et une \u00e9clipse en m\u00eame temps sur Mars\u00a0! - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"isPartOf\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2026\/09\/Phobos-eclipse-PIA26811.png\",\"datePublished\":\"2026-09-02T09:53:45+00:00\",\"dateModified\":\"2026-09-02T09:53:45+00:00\",\"author\":{\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63\"},\"description\":\"Mars conna\u00eet des \u00e9clipses de Soleil, appel\u00e9es \\\"transits\\\", lorsque l'astre du jour est partiellement cach\u00e9 par Phobos, sa petite lune.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/#primaryimage\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2026\/09\/Phobos-eclipse-PIA26811.png\",\"contentUrl\":\"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2026\/09\/Phobos-eclipse-PIA26811.png\",\"width\":2011,\"height\":1372,\"caption\":\"\u00c9clipse ou \\\"transit\\\" de Phobos devant le Soleil.\"},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#website\",\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/\",\"name\":\"Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue\",\"description\":\"La science ? Apr\u00e8s tout, qu\u2019est-elle, sinon une longue et syst\u00e9matique curiosit\u00e9 ? Andr\u00e9 Maurois\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/blogs.futura-sciences.com\/frankel\/?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\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63\",\"name\":\"Charles Frankel\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/93767f419dc6f3384f1e52a1a4c8f5b5?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/93767f419dc6f3384f1e52a1a4c8f5b5?s=96&d=mm&r=g\",\"caption\":\"Charles Frankel\"},\"url\":\"https:\/\/blogs.futura-sciences.com\/frankel\/author\/cfrankel\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Et une \u00e9clipse en m\u00eame temps sur Mars\u00a0! - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue","description":"Mars conna\u00eet des \u00e9clipses de Soleil, appel\u00e9es \"transits\", lorsque l'astre du jour est partiellement cach\u00e9 par Phobos, sa petite lune.","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\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/","twitter_misc":{"\u00c9crit par":"Charles Frankel","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/","url":"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/","name":"Et une \u00e9clipse en m\u00eame temps sur Mars\u00a0! - Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue","isPartOf":{"@id":"https:\/\/blogs.futura-sciences.com\/frankel\/#website"},"primaryImageOfPage":{"@id":"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/#primaryimage"},"image":{"@id":"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/#primaryimage"},"thumbnailUrl":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2026\/09\/Phobos-eclipse-PIA26811.png","datePublished":"2026-09-02T09:53:45+00:00","dateModified":"2026-09-02T09:53:45+00:00","author":{"@id":"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63"},"description":"Mars conna\u00eet des \u00e9clipses de Soleil, appel\u00e9es \"transits\", lorsque l'astre du jour est partiellement cach\u00e9 par Phobos, sa petite lune.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/frankel\/2026\/09\/02\/et-une-eclipse-en-meme-temps-sur-mars\/#primaryimage","url":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2026\/09\/Phobos-eclipse-PIA26811.png","contentUrl":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-content\/uploads\/sites\/7\/2026\/09\/Phobos-eclipse-PIA26811.png","width":2011,"height":1372,"caption":"\u00c9clipse ou \"transit\" de Phobos devant le Soleil."},{"@type":"WebSite","@id":"https:\/\/blogs.futura-sciences.com\/frankel\/#website","url":"https:\/\/blogs.futura-sciences.com\/frankel\/","name":"Carnets de bord d\u2019un martien, le blog de Charles FRANKEL, g\u00e9ologue","description":"La science ? Apr\u00e8s tout, qu\u2019est-elle, sinon une longue et syst\u00e9matique curiosit\u00e9 ? Andr\u00e9 Maurois","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/blogs.futura-sciences.com\/frankel\/?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\/frankel\/#\/schema\/person\/c6bf521c6d19bf22fb19fb2b3d6fcf63","name":"Charles Frankel","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/blogs.futura-sciences.com\/frankel\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/93767f419dc6f3384f1e52a1a4c8f5b5?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/93767f419dc6f3384f1e52a1a4c8f5b5?s=96&d=mm&r=g","caption":"Charles Frankel"},"url":"https:\/\/blogs.futura-sciences.com\/frankel\/author\/cfrankel\/"}]}},"_links":{"self":[{"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/posts\/1174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/comments?post=1174"}],"version-history":[{"count":2,"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/posts\/1174\/revisions"}],"predecessor-version":[{"id":1183,"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/posts\/1174\/revisions\/1183"}],"wp:attachment":[{"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/media?parent=1174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/categories?post=1174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.futura-sciences.com\/frankel\/wp-json\/wp\/v2\/tags?post=1174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}