{"id":4459,"date":"2015-12-11T05:44:46","date_gmt":"2015-12-11T05:44:46","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=4459"},"modified":"2015-12-18T05:45:07","modified_gmt":"2015-12-18T05:45:07","slug":"en-video-la-lune-a-occulte-la-planete-venus-le-7-decembre","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/11\/en-video-la-lune-a-occulte-la-planete-venus-le-7-decembre\/","title":{"rendered":"En vid\u00e9o : la Lune a occult\u00e9 la plan\u00e8te V\u00e9nus le 7 d\u00e9cembre"},"content":{"rendered":"<p><strong>Le 7 d\u00e9cembre \u00e0 l&#8217;aube la Lune a occult\u00e9 la seconde plan\u00e8te du Syst\u00e8me solaire, un spectacle visible en Am\u00e9rique du nord et aux Cara\u00efbes.<\/strong><\/p>\n<p>C&#8217;est un tout petit coin de ciel entre les constellations de la Vierge et de la Balance que les astronomes scrutent avec attention : on y trouve actuellement <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/04\/veritas-et-davinci-objectif-venus-pour-la-nasa\/\" target=\"_blank\">V\u00e9nus<\/a>\u00a0(la plus brillante plan\u00e8te) ainsi que la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/07\/la-comete-c2013-us10-catalina-passe-pres-de-venus\/\" target=\"_blank\">com\u00e8te C\/2013 US10 Catalina<\/a>.<\/p>\n<p>Le lundi 7 d\u00e9cembre le croissant de la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/10\/12\/9-octobre-trois-planetes-accompagnent-la-vieille-lune\/\" target=\"_blank\">vieille Lune<\/a> s&#8217;y est invit\u00e9. Alors qu&#8217;en Europe la Lune et V\u00e9nus \u00e9taient en conjonction serr\u00e9e (avec seulement 0,6\u00b0 apparent entre les deux astres), le spectacle \u00e9tait encore plus spectaculaire en Am\u00e9rique o\u00f9 l&#8217;on a pu voir notre satellite naturel passer devant la brillante plan\u00e8te.<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" width=\"420\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/O9XGhV4_Vco\" frameborder=\"0\" 0=\"allowfullscreen\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n\n<p>Bien qu&#8217;il fasse jour au moment de l&#8217;occultation (avec un \u00e9cart de 40\u00b0 entre le <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/14\/15-images-pour-detailler-un-lever-de-soleil\/\" target=\"_blank\">Soleil <\/a>et le couple Lune-V\u00e9nus), on pouvait suivre cette rencontre c\u00e9leste avec une <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/05\/05\/bien-choisir-sa-premiere-lunette-astronomique\/\" target=\"_blank\">lunette astronomique<\/a> ou une simple paire de jumelles en raison de la brillance de la Lune et de V\u00e9nus avec des magnitudes respectives de -8,8 et -4,2.<\/p>\n<p><!--more-->Le diam\u00e8tre apparent de V\u00e9nus \u00e9tant loin d&#8217;\u00eatre n\u00e9gligeable (17 secondes d&#8217;arc), son occultation n&#8217;est pas instantan\u00e9e comme c&#8217;est le cas pour une \u00e9toile. Il faut un peu moins d&#8217;une minute pour voir dispara\u00eetre la plan\u00e8te derri\u00e8re le bord lunaire : c&#8217;est ce que nous montre la vid\u00e9o r\u00e9alis\u00e9e par l&#8217;astronome amateur Paul Krizak depuis San Diego en Californie \u00e0 l&#8217;aide d&#8217;une cam\u00e9ra plac\u00e9e derri\u00e8re un <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/14\/en-images-les-telescopes-amateurs\/\" target=\"_blank\">t\u00e9lescope <\/a>de 35 cm de diam\u00e8tre. Notez la forme gibbeuse de V\u00e9nus dont la fraction \u00e9clair\u00e9e \u00e9tait de 69%.<\/p>\n<p>Le site EarthSky a rassembl\u00e9 un certain nombre d&#8217;images de cette occultation sur une page intitul\u00e9e <a href=\"http:\/\/earthsky.org\/todays-image\/see-it-best-photos-moon-and-venus-dec-7-2015\" target=\"_blank\"><em>amazing photos of moon and<\/em> <em>Venus<\/em><\/a>.<em>\u00a0<\/em><\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>Le 7 d\u00e9cembre \u00e0 l&#8217;aube la Lune a occult\u00e9 la seconde plan\u00e8te du Syst\u00e8me solaire, un spectacle visible en Am\u00e9rique du nord et aux Cara\u00efbes. C&#8217;est un tout petit coin de ciel entre les constellations de la Vierge et de la Balance que les astronomes scrutent avec attention : on y trouve actuellement V\u00e9nus\u00a0(la plus &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/11\/en-video-la-lune-a-occulte-la-planete-venus-le-7-decembre\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">En vid\u00e9o : la Lune a occult\u00e9 la plan\u00e8te V\u00e9nus le 7 d\u00e9cembre<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":4460,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[83],"tags":[82,106,1398,96,159,1032],"class_list":["post-4459","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-la-lune","tag-lune","tag-occultation","tag-paul-krizak","tag-telescope","tag-venus","tag-vieille-lune"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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