{"id":7082,"date":"2017-01-10T16:50:00","date_gmt":"2017-01-10T16:50:00","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=7082"},"modified":"2017-01-19T08:46:42","modified_gmt":"2017-01-19T08:46:42","slug":"trafic-lecliptique-3-planetes-se-bousculent-a-louest","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/10\/trafic-lecliptique-3-planetes-se-bousculent-a-louest\/","title":{"rendered":"Trafic sur l&#8217;\u00e9cliptique : 3 plan\u00e8tes se bousculent \u00e0 l&#8217;ouest"},"content":{"rendered":"<p><strong>Mars, Neptune et V\u00e9nus sont actuellement regroup\u00e9es dans une petite portion de l&#8217;\u00e9cliptique, cette bande c\u00e9leste dans laquelle circulent les plan\u00e8tes.<\/strong><\/p>\n<p>Le ciel du soir rassemble actuellement plusieurs plan\u00e8tes : <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/07\/la-planete-venus-au-dessus-de-la-cathedrale-de-reims\/\" target=\"_blank\">V\u00e9nus<\/a>, la plus brillante et <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/12\/04\/soiree-contempler-mars-lune-venus-liss\/\" target=\"_blank\">Mars<\/a> la rouge sont les plus visibles. Des jumelles ou une petite lunette astronomique vous d\u00e9voileront \u00e9galement <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/16\/voyager-2-immortalisait-neptune-triton\/\" target=\"_blank\">Neptune<\/a>. <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/05\/mars-neptune-se-rencontrent-verseau\/\" target=\"_blank\">Mars et Neptune<\/a> se sont crois\u00e9es le premier jour de l&#8217;ann\u00e9e 2017, un rapprochement apparent que Neptune renouvellera avec V\u00e9nus le 12 janvier.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/01\/mars_venus.jpg\" rel=\"lightbox[7082]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-7083\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/01\/mars_venus-450x299.jpg\" alt=\"mars_venus\" width=\"450\" height=\"299\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/01\/mars_venus-450x299.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/01\/mars_venus-768x510.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/01\/mars_venus-1024x681.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/01\/mars_venus.jpg 1354w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Pour trouver les autres plan\u00e8tes il faut suivre l&#8217;\u00e9cliptique dans le sens OUEST-EST en partant de Mars : <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/09\/discrete-la-planete-uranus-glisse-entre-venus-et-mars\/\" target=\"_blank\">Uranus<\/a> est un peu plus haut dans la constellation des Poissons, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/09\/12\/juno-enregistre-aurore-polaire-australe-jupiter\/\" target=\"_blank\">Jupiter<\/a> se trouve dans la Vierge, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/11\/03\/lombre-satellite-pan-anneaux-de-saturne\/\" target=\"_blank\">Saturne<\/a> dans Ophiuchus et <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/09\/11\/suivez-mercure-champ-coronographe-de-soho\/\" target=\"_blank\">Mercure<\/a> dans le Sagittaire.<!--more--><\/p>\n<p>Mais qu&#8217;est-ce que l\u2019\u00e9cliptique ?\u00a0Si l\u2019on se place d\u2019un point de vue \u00a0h\u00e9liocentrique, l\u2019\u00e9cliptique mat\u00e9rialise le\u00a0plan de l\u2019orbite terrestre et de l\u2019ensemble des orbites plan\u00e9taires autour de notre \u00e9toile. Mais il est plus facile d\u2019envisager la situation depuis notre observatoire naturel, la Terre ; en regardant la sph\u00e8re c\u00e9leste, l\u2019\u00e9cliptique symbolise pour nous un grand cercle repr\u00e9sentant la projection de la trajectoire annuelle apparente du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/14\/15-images-pour-detailler-un-lever-de-soleil\/\" target=\"_blank\">Soleil <\/a>(ainsi que celles des <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/06\/27\/le-clos-de-la-marechale-accueille-deux-planetes\/\" target=\"_blank\">plan\u00e8tes <\/a>qui\u00a0s\u2019\u00e9cartent plus ou moins de l\u2019\u00e9cliptique dans une \u00e9troite bande appel\u00e9e le zodiaque astronomique). En circulant tous dans la m\u00eame bande ces astres peuvent \u00eatre amen\u00e9s \u00e0 s&#8217;\u00e9clipser mutuellement, d&#8217;o\u00f9 le nom d&#8217;\u00e9cliptique.<\/p>\n<p>L&#8217;image ci-dessus a \u00e9t\u00e9 r\u00e9alis\u00e9e avec un bo\u00eetier Nikon D3200, un objectif 18-105 mm r\u00e9gl\u00e9 \u00e0 sa plus courte focale (ouverture 3,5) et une pose de 20 sec \u00e0 800 iso. Un Train \u00e0 Grande Vitesse reliant Paris \u00e0 Lyon est venu ajouter une touche de lumi\u00e8re.<\/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>Mars, Neptune et V\u00e9nus sont actuellement regroup\u00e9es dans une petite portion de l&#8217;\u00e9cliptique, cette bande c\u00e9leste dans laquelle circulent les plan\u00e8tes. Le ciel du soir rassemble actuellement plusieurs plan\u00e8tes : V\u00e9nus, la plus brillante et Mars la rouge sont les plus visibles. Des jumelles ou une petite lunette astronomique vous d\u00e9voileront \u00e9galement Neptune. Mars et &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/10\/trafic-lecliptique-3-planetes-se-bousculent-a-louest\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Trafic sur l&#8217;\u00e9cliptique : 3 plan\u00e8tes se bousculent \u00e0 l&#8217;ouest<\/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":7083,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[86],"tags":[326,90,116,140,642,136,128,159],"class_list":["post-7082","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soleil-et-planetes","tag-ecliptique","tag-jupiter","tag-mars","tag-mercure","tag-neptune","tag-saturne","tag-uranus","tag-venus"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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