{"id":14541,"date":"2022-04-08T10:54:29","date_gmt":"2022-04-08T09:54:29","guid":{"rendered":"https:\/\/www.proantic.com\/magazine\/?p=14541"},"modified":"2024-04-22T11:01:06","modified_gmt":"2024-04-22T10:01:06","slug":"sphere-celeste-de-lefrancois-de-lalande","status":"publish","type":"post","link":"https:\/\/www.proantic.com\/magazine\/sphere-celeste-de-lefrancois-de-lalande\/","title":{"rendered":"Sph\u00e8re c\u00e9leste de Lefran\u00e7ois de Lalande"},"content":{"rendered":"\n

Sph\u00e8re c\u00e9leste par Joseph J\u00e9r\u00f4me\u00a0Lefran\u00e7ois de\u00a0Lalande dat\u00e9e 1774<\/strong>. Les sph\u00e8res c\u00e9leste de de Lalande sont rares, sp\u00e9cialement dans ce diam\u00e8tre.<\/p>\n\n\n\n

\"\"
Sph\u00e8re c\u00e9leste par Joseph J\u00e9r\u00f4me Lefran\u00e7ois de Lalande (c) Bertrand Thi\u00e9baut<\/a>, Proantic.<\/figcaption><\/figure>\n\n\n\n

La sph\u00e8re c\u00e9leste<\/strong> est une sph\u00e8re imaginaire de rayons quelconques et dont le centre est occup\u00e9 par la Terre. Ce concept astronomique, h\u00e9rit\u00e9 de l’antiquit\u00e9, permet de repr\u00e9senter tous les astres tel qu’on les voit depuis la Terre. Ainsi, il est possible de positionner les astres dans le ciel<\/a> en leur attribuant des coordonn\u00e9es uniques.<\/p>\n\n\n\n

\"\"
Sph\u00e8re c\u00e9leste par Joseph J\u00e9r\u00f4me Lefran\u00e7ois de Lalande (c) Bertrand Thi\u00e9baut<\/a>, Proantic.<\/figcaption><\/figure>\n\n\n\n

Joseph J\u00e9r\u00f4me Lefran\u00e7ois de Lalande<\/strong>, Astronome fran\u00e7ais (Bourg-en-Bresse 1732-Paris 1807).<\/p>\n\n\n\n

On lui doit une des premi\u00e8res d\u00e9terminations pr\u00e9cises de la parallaxe de la Lune (1751), des travaux de m\u00e9canique c\u00e9leste, et la publication d’un important catalogue d’\u00e9toiles (1801). Il fut directeur de l’Observatoire de Paris de 1795 \u00e0 1800. Il s’illustra aussi comme vulgarisateur de l’astronomie. (Acad\u00e9mie des sciences, 1753).<\/p>\n\n\n\n

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Sph\u00e8re c\u00e9leste par Joseph J\u00e9r\u00f4me Lefran\u00e7ois de Lalande (c) Bertrand Thi\u00e9baut, Proantic.<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Sph\u00e8re c\u00e9leste par Joseph J\u00e9r\u00f4me\u00a0Lefran\u00e7ois de\u00a0Lalande dat\u00e9e 1774. Les sph\u00e8res c\u00e9leste de de Lalande sont rares, sp\u00e9cialement dans ce diam\u00e8tre. La sph\u00e8re c\u00e9leste est une sph\u00e8re imaginaire de rayons quelconques et dont le centre est occup\u00e9 par la Terre. Ce concept astronomique, h\u00e9rit\u00e9 de l’antiquit\u00e9, permet de repr\u00e9senter tous les astres tel qu’on les voit depuis la […]<\/p>\n","protected":false},"author":6,"featured_media":14561,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[180],"tags":[],"class_list":["post-14541","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arts-decoratifs-proantic"],"yoast_head":"\nSph\u00e8re c\u00e9leste de Lefran\u00e7ois de Lalande Le Magazine de Proantic<\/title>\n<meta name=\"description\" content=\"Sph\u00e8re c\u00e9leste par Joseph J\u00e9r\u00f4me\u00a0Lefran\u00e7ois de\u00a0Lalande dat\u00e9e 1774. 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