{"id":20745,"date":"2025-01-21T17:20:52","date_gmt":"2025-01-21T17:20:52","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=20745"},"modified":"2025-02-05T10:41:22","modified_gmt":"2025-02-05T10:41:22","slug":"c-2024-g3-atlas-fait-son-show-dans-lhemisphere-sud","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/01\/21\/c-2024-g3-atlas-fait-son-show-dans-lhemisphere-sud\/","title":{"rendered":"C\/2024 G3 (ATLAS) fait son show dans l&#8217;h\u00e9misph\u00e8re Sud"},"content":{"rendered":"<p><strong>Une nouvelle com\u00e8te, C\/2024 G3 (ATLAS), est en train de briller de mille feux. Un spectacle r\u00e9serv\u00e9 aux observateurs de l&#8217;h\u00e9misph\u00e8re Sud.<\/strong><\/p>\n<h5>Com\u00e8te australe :<\/h5>\n<p>Ne la confondez pas avec C\/2023 A3 <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/23\/la-comete-tsuchinshan-atlas-nous-fait-ses-adieux\/\" target=\"_blank\" rel=\"noopener\">Tsuchinshan-ATLAS<\/a>, la com\u00e8te que nous avions pu suivre \u00e0 l&#8217;automne dernier. Voici C\/2024 G3, une nouvelle venue qui fait aussi partie des d\u00e9tections du r\u00e9seau de surveillance <a href=\"https:\/\/atlas.fallingstar.com\/\" target=\"_blank\" rel=\"noopener\">ATLAS<\/a>. Alors que la com\u00e8te de l&#8217;automne \u00e9tait d&#8217;abord apparue aux basses latitudes avant de remonter pour \u00eatre observable en France, C\/2024 G3 a fait l&#8217;inverse. Elle est d\u00e9sormais r\u00e9serv\u00e9e aux observateurs install\u00e9s dans l&#8217;h\u00e9misph\u00e8re Sud. Lors de son passage \u00e0 une dizaine de millions de kilom\u00e8tres du Soleil le 13 janvier, l&#8217;astre chevelu est devenu tr\u00e8s brillant (<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/05\/06\/quest-lechelle-magnitudes-astronomie\/\" target=\"_blank\" rel=\"noopener\">magnitude<\/a> -4). Bien que son \u00e9clat diminue progressivement, la com\u00e8te est encore tr\u00e8s belle. La preuve avec ce superbe clich\u00e9 de Yuri Beletsky :<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/www.facebook.com\/plugins\/post.php?href=https%3A%2F%2Fwww.facebook.com%2Fyuribeletskyphoto%2Fposts%2Fpfbid0RNtu9d5Qi6FysaJJwkLpPi8ZZ3ki9scET1E7HMkT86CjfMF1W6MJfaYPwgeXN8gXl&#038;show_text=true&#038;width=500\" width=\"500\" height=\"717\" style=\"border:none;overflow:hidden\" scrolling=\"no\" frameborder=\"0\" allowfullscreen=\"true\" allow=\"autoplay; clipboard-write; encrypted-media; picture-in-picture; web-share\" class=\"iframe-class\"><\/iframe>\n\n<p>L&#8217;astrophotographe a pu l&#8217;immortaliser depuis le Chili, avec au premier plan l&#8217;un des quatre <a href=\"https:\/\/www.eso.org\/public\/teles-instr\/paranal-observatory\/vlt\/auxiliarytelescopes\/\" target=\"_blank\" rel=\"noopener\"><em>Auxiliary Telescopes<\/em><\/a>. Rappelons quand m\u00eame que la sensibilit\u00e9 des capteurs num\u00e9riques actuels permet d&#8217;obtenir des images bien plus spectaculaires que ce que l&#8217;on voit r\u00e9ellement. Selon le site <a href=\"https:\/\/astro.vanbuitenen.nl\/comet\/2024G3\" target=\"_blank\" rel=\"noopener\">Astro.Vanbuitenen<\/a>, la com\u00e8te, actuellement de magnitude 2, va logiquement continuer de perdre de la luminosit\u00e9 en s&#8217;\u00e9loignant du Soleil.<\/p>\n<h5>Vous pourriez aimer :<\/h5>\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/20\/ils-ont-dessine-la-comete-tsuchinshan-atlas\/\" target=\"_blank\" rel=\"noopener\">Ils ont dessin\u00e9 la com\u00e8te Tsuchinshan-ATLAS<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/11\/21\/c-1908-r1-morehouse-etait-une-rare-comete-bleue\/\" target=\"_blank\" rel=\"noopener\">C\/1908 R1 (Morehouse) \u00e9tait une rare com\u00e8te bleue<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/01\/11\/un-projet-industriel-menace-le-ciel-des-observatoires-chiliens\/\" target=\"_blank\" rel=\"noopener\">Un projet industriel menace le ciel des observatoires chiliens<\/a><\/li>\n<\/ul>\n<p>Suivez l\u2019actualit\u00e9 astronomique et d\u00e9couvrez mes images du ciel en vous abonnant \u00e0 Cielmania sur\u00a0<a href=\"https:\/\/www.facebook.com\/cielmania\/\" target=\"_blank\" rel=\"noopener noreferrer\">Facebook<\/a> et sur\u00a0<a href=\"https:\/\/bsky.app\/profile\/cielmania.bsky.social\" target=\"_blank\" rel=\"noopener\">Bluesky<\/a>.<\/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>Une nouvelle com\u00e8te, C\/2024 G3 (ATLAS), est en train de briller de mille feux. Un spectacle r\u00e9serv\u00e9 aux observateurs de l&#8217;h\u00e9misph\u00e8re Sud. Com\u00e8te australe : Ne la confondez pas avec C\/2023 A3 Tsuchinshan-ATLAS, la com\u00e8te que nous avions pu suivre \u00e0 l&#8217;automne dernier. Voici C\/2024 G3, une nouvelle venue qui fait aussi partie des d\u00e9tections &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/01\/21\/c-2024-g3-atlas-fait-son-show-dans-lhemisphere-sud\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">C\/2024 G3 (ATLAS) fait son show dans l&#8217;h\u00e9misph\u00e8re Sud<\/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":20746,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[3713,3712,635,93,1016],"class_list":["post-20745","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-auxiliary-telescopes","tag-c-2024-g3-atlas","tag-chili","tag-comete","tag-yuri-beletsky"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\/2024 G3 (ATLAS) fait son show dans l&#039;h\u00e9misph\u00e8re Sud<\/title>\n<meta name=\"description\" content=\"Une nouvelle com\u00e8te, C\/2024 G3 (ATLAS), est en train de briller de mille feux. 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