{"id":9368,"date":"2018-06-20T12:53:26","date_gmt":"2018-06-20T12:53:26","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=9368"},"modified":"2018-06-29T05:07:09","modified_gmt":"2018-06-29T05:07:09","slug":"venus-passe-a-cote-de-lamas-detoiles-de-la-creche","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/06\/20\/venus-passe-a-cote-de-lamas-detoiles-de-la-creche\/","title":{"rendered":"V\u00e9nus passe \u00e0 c\u00f4t\u00e9 de l’amas d’\u00e9toiles de la Cr\u00e8che"},"content":{"rendered":"

Vous avez une paire de jumelles ? Pointez-la en soir\u00e9e en direction de l’\u00e9clatante V\u00e9nus et de l’amas d’\u00e9toiles Messier 44, l’amas de la Cr\u00e8che.\u00a0<\/strong><\/p>\n

\u00c0 quelques heures du solstice d’\u00e9t\u00e9<\/a>, le cr\u00e9puscule semble interminable : les premi\u00e8res \u00e9toiles font leur apparition tardivement et on ne sait pas trop quoi observer en d\u00e9but de nuit \u00e0 part la Lune<\/a>, Jupiter<\/a> et Saturne<\/a>. Pour patienter, je vous invite \u00e0 rep\u00e9rer V\u00e9nus<\/a> en train de se rapprocher de l’horizon OUEST vers 23 heures et \u00e0 l’observer aux jumelles<\/a>.<\/p>\n

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

La seconde plan\u00e8te du Syst\u00e8me solaire est actuellement dans la constellation du Cancer, juste \u00e0 c\u00f4t\u00e9 d’un c\u00e9l\u00e8bre amas d’\u00e9toiles (Messier 44), comme le montre ce clich\u00e9 r\u00e9alis\u00e9 le 19 juin (objectif de 50 mm de focale, 3200 iso, pose de 5 sec).\u00a0 \u00a0<\/p>\n

La d\u00e9couverte de l\u2019amas de la Cr\u00e8che est attribu\u00e9e au po\u00e8te grec Aratos de Soles vers 260 avant J-C. Heureuse \u00e9poque o\u00f9 l\u2019absence totale de\u00a0pollution lumineuse<\/a>\u00a0permettait \u00e0 chacun d\u2019admirer les merveilles du ciel nocturne depuis le pas de sa porte\u2026<\/p>\n

Enregistr\u00e9 par Charles Messier en 44\u00e8me position dans son c\u00e9l\u00e8bre catalogue<\/a>, ce\u00a0bel amas ouvert d\u2019\u00e9toiles est situ\u00e9 dans la constellation du Cancer \u00e0 environ 600 ann\u00e9es-lumi\u00e8re de nous.\u00a0Messier 44\u00a0est aussi appel\u00e9 Praesepe, la Cr\u00e8che ou encore la Ruche.<\/p>\n

Un milliers d\u2019\u00e9toiles forment cet amas qui serait n\u00e9 il y a 600 millions d\u2019ann\u00e9es. Alors que les\u00a0\u00e9toiles\u00a0<\/a>de l\u2019amas des Pl\u00e9iades<\/a>, beaucoup plus jeunes (100 millions d\u2019ann\u00e9es), sont encore entour\u00e9es de n\u00e9bulosit\u00e9s, celles de M 44 ont abandonn\u00e9 leurs enveloppes gazeuses et se dispersent peu \u00e0 peu dans l\u2019espace.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vous avez une paire de jumelles ? Pointez-la en soir\u00e9e en direction de l’\u00e9clatante V\u00e9nus et de l’amas d’\u00e9toiles Messier 44, l’amas de la Cr\u00e8che.\u00a0 \u00c0 quelques heures du solstice d’\u00e9t\u00e9, le cr\u00e9puscule semble interminable : les premi\u00e8res \u00e9toiles font leur apparition tardivement et on ne sait pas trop quoi observer en d\u00e9but de nuit … Continuer la lecture de V\u00e9nus passe \u00e0 c\u00f4t\u00e9 de l’amas d’\u00e9toiles de la Cr\u00e8che<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":9369,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[434,438,433,159],"class_list":["post-9368","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-amas-de-la-creche","tag-constellation-du-cancer","tag-messier-44","tag-venus"],"yoast_head":"\nV\u00e9nus passe \u00e0 c\u00f4t\u00e9 de l'amas d'\u00e9toiles de la Cr\u00e8che<\/title>\n<meta name=\"description\" content=\"Vous avez une paire de jumelles ? 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