{"id":21826,"date":"2025-10-22T09:07:28","date_gmt":"2025-10-22T09:07:28","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=21826"},"modified":"2025-10-26T09:01:20","modified_gmt":"2025-10-26T09:01:20","slug":"recit-la-comete-lemmon-dans-le-ciel-de-la-drome","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/10\/22\/recit-la-comete-lemmon-dans-le-ciel-de-la-drome\/","title":{"rendered":"R\u00e9cit : la com\u00e8te Lemmon dans le ciel de la Dr\u00f4me"},"content":{"rendered":"<p><strong>L\u2019astrophotographe Christian Bertincourt est all\u00e9 photographier la com\u00e8te C\/2025 A 6 (Lemmon) sous le ciel pur de la Dr\u00f4me.<\/strong><\/p>\n<h5>Une com\u00e8te dans la Dr\u00f4me :<\/h5>\n<p>Le passage de la com\u00e8te Lemmon (infos <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/10\/12\/la-comete-lemmon-est-desormais-observable-en-soiree\/\" target=\"_blank\" rel=\"noopener\">ici<\/a>) ne pouvait laisser indiff\u00e9rent Christian Bertincourt. Souvenez-vous : il y a un peu plus d&#8217;un an, cet astrophotographe lyonnais (d\u00e9couvrez ses images sur\u00a0<a href=\"https:\/\/www.btc-photographie.com\/galeries\/astrophoto\/\" target=\"_blank\" rel=\"noopener\">son site<\/a> ou dans sa <a href=\"https:\/\/www.flickr.com\/photos\/btc-photographie\/\" target=\"_blank\" rel=\"noopener\">galerie d\u2019images Flickr<\/a>) nous avait partag\u00e9 sa rencontre avec <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/03\/16\/comete-12p-pons-brooks-un-astrophotographe-raconte\/\" target=\"_blank\" rel=\"noopener\">la belle com\u00e8te 12P\/Pons-Brooks<\/a>. Il est retourn\u00e9 dans la Dr\u00f4me, mais cette fois-ci pour imager C\/2025 A6. Il nous raconte : &#8220;<em>J&#8217;ai pass\u00e9 deux nuits au <a href=\"https:\/\/www.observatoire-cosmodrome.net\/\" target=\"_blank\" rel=\"noopener\">CosmoDr\u00f4me<\/a> situ\u00e9 sur la montagne de Bergi\u00e8s dans la Dr\u00f4me, \u00e0 1365 m\u00e8tres d&#8217;altitude :<\/em><\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert4.jpg\" rel=\"lightbox[21826]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-21828\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert4-450x213.jpg\" alt=\"\" width=\"450\" height=\"213\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert4-450x213.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert4-1024x485.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert4-768x364.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert4.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p><em>Quel bonheur de se retrouver dans ce havre de noirceur et de silence, face \u00e0 un ciel d\u2019une puret\u00e9 rare ! L\u2019objectif de l\u2019exp\u00e9dition \u00e9tait d&#8217;imager la com\u00e8te C\/2025 A6 qui traverse actuellement nos ciels d\u2019automne. <\/em><em>C\u2019est dans une ambiance quasi-irr\u00e9elle que la session a d\u00e9but\u00e9. Apr\u00e8s quelques r\u00e9glages pr\u00e9cis et une mise en station soign\u00e9e, j&#8217;ai lanc\u00e9 les acquisitions, accumulant les poses de 120 secondes avec ma cam\u00e9ra et ma lunette Askar 108\/600 :<\/em><\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert6.jpg\" rel=\"lightbox[21826]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-21830\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert6-450x213.jpg\" alt=\"\" width=\"450\" height=\"213\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert6-450x213.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert6-1024x485.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert6-768x364.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert6.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p><!--more--><\/p>\n<h5>Immersion totale :<\/h5>\n<p><em>Le CosmoDr\u00f4me, fid\u00e8le \u00e0 sa r\u00e9putation, m&#8217;a offert un ciel parfaitement stable et transparent. Dans le froid mordant du petit matin, la com\u00e8te a lentement gliss\u00e9 sur le capteur photographique, laissant appara\u00eetre sa chevelure et sa fine queue poussi\u00e9reuse. Au fil des acquisitions, une \u00e9motion famili\u00e8re, celle d\u2019assister au passage d\u2019un visiteur venu des confins du Syst\u00e8me solaire :<\/em><\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert2.jpg\" rel=\"lightbox[21826]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-21829\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert2-450x297.jpg\" alt=\"\" width=\"450\" height=\"297\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert2-450x297.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert2-1024x677.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert2-768x507.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert2.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p><em>Deux nuits d\u2019immersion totale, entre technique et contemplation, o\u00f9 chaque pose semblait prolonger un peu plus la magie du moment. Une aventure astronomique comme je les aime : de la route (500 kilom\u00e8tres aller\/retour), du froid, du vent, des \u00e9toiles\u2026 Et au bout, une com\u00e8te fig\u00e9e dans un ciel parfait. L&#8217;image que je vous propose a \u00e9t\u00e9 r\u00e9alis\u00e9e le 17 octobre <\/em>(la veille de<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/10\/20\/surprise-une-aurore-boreale-accompagne-la-comete-lemmon\/\" target=\"_blank\" rel=\"noopener\"> l&#8217;aurore bor\u00e9ale<\/a>, NDLR)<em>. Je vous laisse d\u00e9couvrir les d\u00e9tails techniques et la version plein format <a href=\"https:\/\/app.astrobin.com\/i\/xjkzrm\" target=\"_blank\" rel=\"noopener\">ici<\/a>.&#8221;<br \/>\n<\/em><\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert3.jpg\" rel=\"lightbox[21826]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-21831\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert3-450x213.jpg\" alt=\"\" width=\"450\" height=\"213\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert3-450x213.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert3-1024x485.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert3-768x364.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/bert3.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Si vous avez envie, comme Christian Bertincourt, d&#8217;observer cette com\u00e8te, voici la carte pour suivre sa progression les prochains soirs (son passage au plus pr\u00e8s du Soleil, le <a href=\"https:\/\/fr.wikipedia.org\/wiki\/P%C3%A9rih%C3%A9lie\" target=\"_blank\" rel=\"noopener\">p\u00e9rih\u00e9lie<\/a>, se produira le 8 novembre) :<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/carte_lemmon.jpg\" rel=\"lightbox[21826]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-21839\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/carte_lemmon-450x270.jpg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/carte_lemmon-450x270.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/carte_lemmon-1024x615.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/carte_lemmon-768x461.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/10\/carte_lemmon.jpg 1201w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<h5>Vous pourriez aimer :<\/h5>\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2023\/11\/06\/en-video-aurores-boreales-au-plateau-de-calern\/\" target=\"_blank\" rel=\"noopener\">En vid\u00e9o : aurores bor\u00e9ales au Plateau de Calern<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/01\/27\/en-suede-une-aurore-boreale-danse-derriere-un-halo-lunaire\/\" target=\"_blank\" rel=\"noopener\">En Su\u00e8de, une aurore bor\u00e9ale danse derri\u00e8re un halo lunaire<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/11\/05\/la-plus-grande-tempete-solaire-a-frappe-la-terre-en-1859\/\" target=\"_blank\" rel=\"noopener\">La plus grande temp\u00eate solaire a frapp\u00e9 la Terre en 1859<\/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\">Facebook<\/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>L\u2019astrophotographe Christian Bertincourt est all\u00e9 photographier la com\u00e8te C\/2025 A 6 (Lemmon) sous le ciel pur de la Dr\u00f4me. Une com\u00e8te dans la Dr\u00f4me : Le passage de la com\u00e8te Lemmon (infos ici) ne pouvait laisser indiff\u00e9rent Christian Bertincourt. Souvenez-vous : il y a un peu plus d&#8217;un an, cet astrophotographe lyonnais (d\u00e9couvrez ses images &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/10\/22\/recit-la-comete-lemmon-dans-le-ciel-de-la-drome\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">R\u00e9cit : la com\u00e8te Lemmon dans le ciel de la Dr\u00f4me<\/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":21838,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[3813,3545,3849,1934,3853],"class_list":["post-21826","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-c-2025-a6-lemmon","tag-christian-bertincourt","tag-comete-lemmon","tag-cosmodrome","tag-drome"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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