{"id":7326,"date":"2017-02-14T15:41:24","date_gmt":"2017-02-14T15:41:24","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=7326"},"modified":"2017-02-26T17:37:04","modified_gmt":"2017-02-26T17:37:04","slug":"planetes-mars-venus-a-lheure-ou-sonne-langelus","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/02\/14\/planetes-mars-venus-a-lheure-ou-sonne-langelus\/","title":{"rendered":"Les plan\u00e8tes Mars et V\u00e9nus \u00e0 l’heure o\u00f9 sonne l’Ang\u00e9lus"},"content":{"rendered":"

C’est au cr\u00e9puscule, \u00e0 l’heure o\u00f9 les cloches sonnent l’Ang\u00e9lus, que les plan\u00e8tes Mars et V\u00e9nus sont les plus photog\u00e9niques dans un ciel bleu fonc\u00e9. \u00a0<\/strong><\/p>\n

V\u00e9nus<\/a> ne cesse de se rapprocher de la Terre, et m\u00eame si sa fraction \u00e9clair\u00e9e diminue (passant du\u00a0Dernier Quartier qui a eu lieu le 14 janvier \u00e0 un mince\u00a0croissant<\/a> de 6% le 14 mars prochain), son \u00e9clat continue d’augmenter. Il atteindra la magnitude -4,63 aux alentours du 20 f\u00e9vrier et chacun pourra alors tenter d’observer et de photographier les ombres produites par l’\u00e9clat v\u00e9nusien.<\/p>\n

Presque \u00e0 ses c\u00f4t\u00e9s (un peu plus haut \u00e0 gauche sur cette image)\u00a0Mars<\/a> fait p\u00e2le figure avec une magnitude de 1,5 ; il faut dire qu’\u00e0 l’inverse la Plan\u00e8te rouge s’\u00e9loigne de nous et il faudra attendre l’\u00e9t\u00e9 2018 et la prochaine opposition pour qu’elle retrouve une magnitude n\u00e9gative.<\/p>\n

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

Avec les jours qui s’allongent depuis le solstice du 21 d\u00e9cembre<\/a> dernier, c’est aux alentours de 19 heures (heure locale), que les deux plan\u00e8tes sont les plus belles, alors que les \u00e9toiles s’allument tout autour une \u00e0 une dans un ciel bleu profond.\u00a0<\/p>\n

19 heures c’est justement l’heure o\u00f9 les cloches de l’\u00e9glise Saint-Symphorien<\/a> \u00e0 Nuits-Saint-Georges se mettent \u00e0 sonner l’Ang\u00e9lus (c’est \u00e9galement le cas \u00e0 8 heures et \u00e0 midi).<\/p>\n

Commenc\u00e9e \u00e0 l’\u00e9poque de la Premi\u00e8re croisade, la tradition de l’Ang\u00e9lus “sonn\u00e9” est toujours maintenue : les cloches sont destin\u00e9es \u00e0 appeler les chr\u00e9tiens \u00e0 stopper toute activit\u00e9 pour r\u00e9citer une pri\u00e8re qui commence par “Angelus Domini<\/em>” (ce qui signifie “L’ Ange du Seigneur”) destin\u00e9e \u00e0 remercier la Vierge d’avoir donn\u00e9 naissance au Seigneur.<\/p>\n

Cette image, r\u00e9alis\u00e9e avec un objectif de 35 mm de focale (ouverture 3,5) et une pose de 3 sec \u00e0 1.600 iso, permet au passage d’admirer les pierres de l’\u00e9glise Saint-Symphorien et le vitrail circulaire ench\u00e2ss\u00e9 dans le mur EST et \u00e9clair\u00e9 depuis le ch\u0153ur.<\/p>\n","protected":false},"excerpt":{"rendered":"

C’est au cr\u00e9puscule, \u00e0 l’heure o\u00f9 les cloches sonnent l’Ang\u00e9lus, que les plan\u00e8tes Mars et V\u00e9nus sont les plus photog\u00e9niques dans un ciel bleu fonc\u00e9. \u00a0 V\u00e9nus ne cesse de se rapprocher de la Terre, et m\u00eame si sa fraction \u00e9clair\u00e9e diminue (passant du\u00a0Dernier Quartier qui a eu lieu le 14 janvier \u00e0 un mince\u00a0croissant … Continuer la lecture de Les plan\u00e8tes Mars et V\u00e9nus \u00e0 l’heure o\u00f9 sonne l’Ang\u00e9lus<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":7327,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[86],"tags":[2073,214,116,146,159],"class_list":["post-7326","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soleil-et-planetes","tag-angelus","tag-eglise-saint-symphorien","tag-mars","tag-nuits-saint-georges","tag-venus"],"yoast_head":"\nLes plan\u00e8tes Mars et V\u00e9nus \u00e0 l'heure o\u00f9 sonne l'Ang\u00e9lus<\/title>\n<meta name=\"description\" content=\"C'est au cr\u00e9puscule, \u00e0 l'heure o\u00f9 les cloches sonnent l'Ang\u00e9lus, que les plan\u00e8tes Mars et V\u00e9nus sont les plus photog\u00e9niques dans un ciel bleu fonc\u00e9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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