{"id":7482,"date":"2017-04-04T15:05:54","date_gmt":"2017-04-04T15:05:54","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=7482"},"modified":"2017-04-12T14:30:04","modified_gmt":"2017-04-12T14:30:04","slug":"paysages-lunaires-a-explorer-3-archimede-alentours","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/04\/04\/paysages-lunaires-a-explorer-3-archimede-alentours\/","title":{"rendered":"Paysages lunaires \u00e0 explorer (3) : Archim\u00e8de et ses alentours"},"content":{"rendered":"

Une simple lunette astronomique ou un petit t\u00e9lescope permettent de merveilleuses observations lunaires. D\u00e9couvrons la r\u00e9gion d’Archim\u00e8de.<\/strong><\/p>\n

C’est au SUD de\u00a0Platon et Vallis Alpes<\/em><\/a>\u00a0que je vous entra\u00eene aujourd’hui pour cette troisi\u00e8me exploration lunaire, dans la r\u00e9gion du crat\u00e8re Archim\u00e8de (la seconde chronique \u00e9tait consacr\u00e9e au Mur Droit<\/a>), toujours gr\u00e2ce aux images r\u00e9alis\u00e9es par l\u2019astronome amateur Alain Brodin<\/a>.<\/p>\n

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

Situ\u00e9 en bordure EST de la Mer des Pluies (Mare Imbrium<\/em>), Archim\u00e8de est un beau crat\u00e8re d’impact d’environ 85 km de diam\u00e8tre. Ses remparts dominent le fond de plus de 2.000 m sauf au NORD o\u00f9 ils se sont effondr\u00e9s il y a bien longtemps. Ce crat\u00e8re a \u00e9t\u00e9 nomm\u00e9 en l’honneur du c\u00e9l\u00e8bre math\u00e9maticien et physicien grec qui d\u00e9couvrit un principe d’hydrostatique et une vis qui portent son nom.<\/p>\n

\u00c0 l’EST d’Archim\u00e8de se trouvent les crat\u00e8res Aristillus (55 km de diam\u00e8tre) et Autolycus (39 km de diam\u00e8tre), deux astronomes grecs, puis le regard est attir\u00e9 par la cha\u00eene des Apennins (dont on ne voit ici qu’un tout petit morceau), s\u00e9par\u00e9e par celle du Caucase par un d\u00e9troit d’une cinquantaine de km reliant la Mer des Pluies \u00e0 la Mer de la S\u00e9r\u00e9nit\u00e9.<\/p>\n

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

Apr\u00e8s avoir rapidement survol\u00e9 le Marais de la Putr\u00e9faction (Palus Putredinis<\/em>, un curieux nom propos\u00e9 au XVII\u00e8me si\u00e8cle par l’astronome italien Giovanni Battista Riccioli), remontez au NORD d’Archim\u00e8de pour y d\u00e9nicher les Monts Spitzberg qui s’\u00e9tirent sur une soixantaine de km ; ce massif, qui se compose d’une s\u00e9rie de sommets dont les altitudes varient de 800 \u00e0 1.700 m, est particuli\u00e8rement beau \u00e0 admirer lorsque le Soleil<\/a> s’y l\u00e8ve (vers le huiti\u00e8me jour de la lunaison) ou s’y couche (vingt-deuxi\u00e8me jour).<\/p>\n

PS : sur les images de cet article la Lune est orient\u00e9e telle qu\u2019elle appara\u00eet \u00e0 l\u2019\u0153il nu, dans une paire de jumelles ou une longue-vue terrestre. Dans une lunette ou un t\u00e9lescope les images sont renvers\u00e9es (SUD en haut et EST \u00e0 gauche).<\/p>\n","protected":false},"excerpt":{"rendered":"

Une simple lunette astronomique ou un petit t\u00e9lescope permettent de merveilleuses observations lunaires. D\u00e9couvrons la r\u00e9gion d’Archim\u00e8de. C’est au SUD de\u00a0Platon et Vallis Alpes\u00a0que je vous entra\u00eene aujourd’hui pour cette troisi\u00e8me exploration lunaire, dans la r\u00e9gion du crat\u00e8re Archim\u00e8de (la seconde chronique \u00e9tait consacr\u00e9e au Mur Droit), toujours gr\u00e2ce aux images r\u00e9alis\u00e9es par l\u2019astronome amateur … Continuer la lecture de Paysages lunaires \u00e0 explorer (3) : Archim\u00e8de et ses alentours<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":7483,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[83],"tags":[1757,454,608,2129,2130,1272,2125,2126,2078,480,2128,2127],"class_list":["post-7482","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-la-lune","tag-alain-brodin","tag-apennins","tag-archimede","tag-aristillus","tag-autolycus","tag-caucase","tag-giovanni-battista-riccioli","tag-marais-de-la-putrefaction","tag-mare-imbrium","tag-mer-des-pluies","tag-monts-spitzberg","tag-palus-putredinis"],"yoast_head":"\nPaysages lunaires \u00e0 explorer (3) : Archim\u00e8de et ses alentours<\/title>\n<meta name=\"description\" content=\"Une simple lunette astronomique ou un petit t\u00e9lescope permettent de merveilleuses observations lunaires. 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