{"id":2927,"date":"2015-06-09T04:55:26","date_gmt":"2015-06-09T04:55:26","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=2927"},"modified":"2015-06-15T04:56:50","modified_gmt":"2015-06-15T04:56:50","slug":"jupiter-et-venus-encadrent-lamas-detoiles-messier-44","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/06\/09\/jupiter-et-venus-encadrent-lamas-detoiles-messier-44\/","title":{"rendered":"Jupiter et V\u00e9nus encadrent l’amas d’\u00e9toiles Messier 44"},"content":{"rendered":"

Avant de se retrouver c\u00f4te \u00e0 c\u00f4te le 30 juin prochain, Jupiter et V\u00e9nus, les deux plus brillantes plan\u00e8tes du Syst\u00e8me solaire, encadrent actuellement M 44.<\/strong><\/p>\n

On ne voit qu’elles dans le ciel du soir\u00a0: comme deux diamants c\u00e9lestes, les plan\u00e8tes Jupiter et V\u00e9nus<\/a> r\u00e9duisent leur \u00e9cart depuis plusieurs semaines, un rapprochement apparent qui les conduira \u00e0 n’\u00eatre plus qu’\u00e0 22′ d’arc l’une de l’autre le dernier jour du mois de juin (10 jours plus t\u00f4t le fin croissant de Lune<\/a> se sera joint \u00e0 la sc\u00e8ne).<\/p>\n

\"jupiter_venus3\"<\/a><\/p>\n

Si vous attendez que le ciel soit bien sombre pour admirer ces deux plan\u00e8tes, vous constaterez qu’elles semblent dispos\u00e9es de part et d’autre d’un petit groupe d’\u00e9toiles.<\/p>\n

Il s’agit de Messier 44<\/a>, un bel amas ouvert situ\u00e9 dans la constellation du Cancer et dont la magnitude globale est estim\u00e9e \u00e0 3,5. Messier 44 est \u00e9galement appel\u00e9 Praesepe, la Cr\u00e8che <\/a>ou encore la Ruche.<\/p>\n

Bien qu’il arrive juste derri\u00e8re M 45 dans le catalogue de l’astronome Charles Messier<\/a>, l’amas de la Cr\u00e8che est beaucoup plus modeste que celui des Pl\u00e9iades<\/a>. N\u00e9anmoins, si vous disposez d’une lunette astronomique<\/a>, je vous encourage vivement \u00e0 la pointer en direction de Praesepe ; vous y d\u00e9couvrirez un grand nombre d’\u00e9toiles faiblement lumineuses (un grand t\u00e9lescope <\/a>permet d’en d\u00e9nombrer environ 600).<\/p>\n

Dirigez ensuite votre lunette vers Jupiter pour admirer le ballet de ses satellites<\/a>, puis vers V\u00e9nus <\/a>qui se pr\u00e9sente actuellement en quartier.<\/p>\n

Pour la petite histoire, sachez que V\u00e9nus <\/a>passera \u00e0 seulement 26′ d’arc de Messier 44 (moins que le diam\u00e8tre apparent de la Pleine Lune<\/a>) le 19 juin 2034.<\/p>\n","protected":false},"excerpt":{"rendered":"

Avant de se retrouver c\u00f4te \u00e0 c\u00f4te le 30 juin prochain, Jupiter et V\u00e9nus, les deux plus brillantes plan\u00e8tes du Syst\u00e8me solaire, encadrent actuellement M 44. On ne voit qu’elles dans le ciel du soir\u00a0: comme deux diamants c\u00e9lestes, les plan\u00e8tes Jupiter et V\u00e9nus r\u00e9duisent leur \u00e9cart depuis plusieurs semaines, un rapprochement apparent qui les … Continuer la lecture de Jupiter et V\u00e9nus encadrent l’amas d’\u00e9toiles Messier 44<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":2939,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[86],"tags":[434,90,148,865,114,96,159],"class_list":["post-2927","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soleil-et-planetes","tag-amas-de-la-creche","tag-jupiter","tag-lunette-astronomique","tag-m-44","tag-planete","tag-telescope","tag-venus"],"yoast_head":"\nJupiter et V\u00e9nus encadrent l'amas d'\u00e9toiles Messier 44<\/title>\n<meta name=\"description\" content=\"Avant de se 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