{"id":6992,"date":"2017-01-17T12:16:16","date_gmt":"2017-01-17T12:16:16","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=6992"},"modified":"2017-01-24T16:13:51","modified_gmt":"2017-01-24T16:13:51","slug":"vlt-observatoire-desert-atacama","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/17\/vlt-observatoire-desert-atacama\/","title":{"rendered":"Le VLT, un observatoire au c\u0153ur du d\u00e9sert d&#8217;Atacama"},"content":{"rendered":"<p><strong>Dans le d\u00e9sert d&#8217;Atacama l&#8217;isolement du Very Large Telescope, l&#8217;un des observatoires les plus performants au monde, est saisissant vu du ciel.<\/strong><\/p>\n<p>Install\u00e9 dans le d\u00e9sert chilien de l\u2019Atacama au sommet du Cerro Paranal depuis plusieurs d\u00e9cennies, l\u2019Observatoire europ\u00e9en austral (<a href=\"https:\/\/www.eso.org\/public\/france\/images\/potw1650a\/\" target=\"_blank\">ESO<\/a>) est constitu\u00e9 de nombreux instruments astronomiques parmi les plus puissants du monde qui op\u00e8rent sous l\u2019un des ciels les plus purs de la plan\u00e8te.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/12\/atacama.jpg\" rel=\"lightbox[6992]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6995\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/12\/atacama-450x338.jpg\" alt=\"atacama\" width=\"450\" height=\"338\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/12\/atacama-450x338.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/12\/atacama-768x576.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/12\/atacama.jpg 1024w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Les 4 <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/08\/13\/en-video-linstrument-sphere-traque-les-exoplanetes\/\" target=\"_blank\">t\u00e9lescopes <\/a>qui composent le VLT sont les plus r\u00e9put\u00e9s. Ils sont \u00e9quip\u00e9s\u00a0de miroirs primaires de 8,2 m\u00e8tres de diam\u00e8tre.<!--more--><\/p>\n<p>Chacun de ces t\u00e9lescopes peut travailler seul, mais on peut aussi les associer \u00e0 4 autres t\u00e9lescopes plus petits (1,8 m\u00e8tre) et mobiles (ils circulent sur des rails) de fa\u00e7on \u00e0 former un interf\u00e9rom\u00e8tre g\u00e9ant, le <a href=\"https:\/\/www.eso.org\/sci\/facilities\/paranal\/telescopes\/vlti.html\" target=\"_blank\">VLTI<\/a>, capable d\u2019offrir des vues de l\u2019Univers 25 fois plus pr\u00e9cises qu\u2019avec un seul des t\u00e9lescopes.<\/p>\n<p><span id=\"more-3505\"><\/span>L\u2019ESO propose r\u00e9guli\u00e8rement sur son site des images de ses observatoires au Chili, que ce soit au <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/04\/02\/les-nuages-de-magellan-dans-le-ciel-du-chili\/\" target=\"_blank\">Paranal <\/a>ou \u00e0 <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/12\/insolite-il-neige-lobservatoire-de-la-silla\/\" target=\"_blank\">la Silla<\/a>. Mais ces images, diurnes ou nocturnes, sont toutes prises depuis le sol. Cette fois-ci c\u2019est une image a\u00e9rienne r\u00e9alis\u00e9e par l&#8217;ambassadeur de l&#8217;ESO <a href=\"http:\/\/atacamaphoto.com\/\" target=\"_blank\">Gerhard H\u00fcdepohl<\/a>\u00a0qui nous permet de d\u00e9couvrir le VLT au sommet du Cerro Paranal peu avant que le <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/08\/04\/coucher-soleil-tache\/\" target=\"_blank\">Soleil <\/a>ne se couche, r\u00e9v\u00e9lant l\u2019Observatoire europ\u00e9en austral en plein d\u00e9sert. On d\u00e9couvre \u00e9galement \u00e0 l&#8217;arri\u00e8re-plan \u00e0 gauche le site du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/02\/17\/le-telescope-vista-rend-la-nebuleuse-trifide-transparente\/\" target=\"_blank\">t\u00e9lescope Vista<\/a> et \u00e0 droite le centre qui accueille et h\u00e9berge le personnel de l&#8217;observatoire.<\/p>\n<p>c\u2019est non loin du <em>Very Large Telescope<\/em> que l\u2019ESO a entrepris de construire l\u2019<em>European Extremely Large Telescope\u00a0<\/em>(<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/13\/feu-vert-pour-le-telescope-geant-e-elt\/\" target=\"_blank\">E-ELT<\/a>), un t\u00e9lescope g\u00e9ant de 39 m de diam\u00e8tre.<\/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>Dans le d\u00e9sert d&#8217;Atacama l&#8217;isolement du Very Large Telescope, l&#8217;un des observatoires les plus performants au monde, est saisissant vu du ciel. Install\u00e9 dans le d\u00e9sert chilien de l\u2019Atacama au sommet du Cerro Paranal depuis plusieurs d\u00e9cennies, l\u2019Observatoire europ\u00e9en austral (ESO) est constitu\u00e9 de nombreux instruments astronomiques parmi les plus puissants du monde qui op\u00e8rent &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/17\/vlt-observatoire-desert-atacama\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Le VLT, un observatoire au c\u0153ur du d\u00e9sert d&#8217;Atacama<\/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":6993,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[87],"tags":[1444,634,633,1222,1983,637,1223],"class_list":["post-6992","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-hommes-et-le-ciel","tag-cerro-paranal","tag-desert-datacama","tag-eso","tag-gerhard-hudepohl","tag-observatoire-europeen-austral","tag-vlt","tag-vlti"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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