{"id":223,"date":"2018-05-30T17:11:18","date_gmt":"2018-05-30T16:11:18","guid":{"rendered":"http:\/\/astrodescartes.fr\/?p=223"},"modified":"2018-05-30T19:02:22","modified_gmt":"2018-05-30T18:02:22","slug":"observations-de-m101-et-m51","status":"publish","type":"post","link":"https:\/\/astrodescartes.fr\/?p=223","title":{"rendered":"Observations de M101 et M51"},"content":{"rendered":"<ul>\n<li>Les Objets du Ciel profond vus depuis le lyc\u00e9e.<\/li>\n<\/ul>\n<p>Gr\u00e2ce aux photos prises de M101 et M51, respectivement la Galaxie du Moulinet et la Galaxie du Tourbillon, nous avons pu traiter puis empiler les images afin d&rsquo;en obtenir une photo correcte. Nous avons utilis\u00e9 une petite lunette guide pour un suivi pr\u00e9cis.<br \/>\nEn\u00a0utilisant le logiciel de traitement DeepSkyStacker, nous avons compil\u00e9 les images dites \u00ab\u00a0dark\u00a0\u00bb, \u00ab\u00a0flat\u00a0\u00bb, \u00ab\u00a0light\u00a0\u00bb et \u00ab\u00a0bias\u00a0\u00bb afin d&rsquo;enlever les d\u00e9fauts dus notamment \u00e0 l&rsquo;objectif et au capteur. Ces images ont \u00e9t\u00e9 prises avec un T\u00e9l\u00e9scope tube C8 et un Canon Eos600D (merci \u00ab\u00a0<strong>astro \u00e0 l&rsquo;\u00e9cole<\/strong>\u00ab\u00a0!), pendant environ 2 heures au total soit 14 pauses de 500 secondes (ciel tr\u00e8s polu\u00e9!) pour M101. Ainsi, voici les images que nous avons obtenues apr\u00e8s traitement :<\/p>\n<p>M101\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0M51<\/p>\n<p>. <a href=\"http:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capturem101.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-225\" src=\"http:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capturem101-300x219.png\" alt=\"Capturem101\" width=\"300\" height=\"219\" srcset=\"https:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capturem101-300x219.png 300w, https:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capturem101-768x560.png 768w, https:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capturem101.png 922w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/a><a href=\"http:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capture-M51.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-224\" src=\"http:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capture-M51-300x200.jpg\" alt=\"Capture M51\" width=\"300\" height=\"200\" srcset=\"https:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capture-M51-300x200.jpg 300w, https:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capture-M51-768x513.jpg 768w, https:\/\/astrodescartes.fr\/wp-content\/uploads\/2018\/05\/Capture-M51.jpg 856w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p style=\"text-align: right;\">Th\u00e9o Lecomte, \u00e9l\u00e8ve en 1\u00e8re S3<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les Objets du Ciel profond vus depuis le lyc\u00e9e. Gr\u00e2ce aux photos prises de M101 et M51, respectivement la Galaxie du Moulinet et la Galaxie du Tourbillon, nous avons pu traiter puis empiler les images afin d&rsquo;en obtenir une photo correcte. Nous avons utilis\u00e9 une petite lunette guide pour un suivi pr\u00e9cis. En\u00a0utilisant le logiciel [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,11],"tags":[],"class_list":{"0":"post-223","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-9","7":"category-11","8":"czr-hentry"},"_links":{"self":[{"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=\/wp\/v2\/posts\/223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=223"}],"version-history":[{"count":6,"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=\/wp\/v2\/posts\/223\/revisions"}],"predecessor-version":[{"id":231,"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=\/wp\/v2\/posts\/223\/revisions\/231"}],"wp:attachment":[{"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrodescartes.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}