{"id":22011,"date":"2025-11-22T09:32:10","date_gmt":"2025-11-22T09:32:10","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=22011"},"modified":"2025-12-14T10:27:38","modified_gmt":"2025-12-14T10:27:38","slug":"tourbillon-detoiles-dans-le-ciel-du-beaujolais","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/11\/22\/tourbillon-detoiles-dans-le-ciel-du-beaujolais\/","title":{"rendered":"Tourbillon d&#8217;\u00e9toiles dans le ciel du Beaujolais"},"content":{"rendered":"<p><strong>Certaines des nuits de cette fin novembre sont belles dans le Beaujolais, \u00e0 condition d&#8217;accepter les temp\u00e9ratures n\u00e9gatives.<\/strong><\/p>\n<h5>Nuits cristallines :<\/h5>\n<p>Depuis le Beaujolais, je profite d&#8217;un ciel relativement \u00e9pargn\u00e9 par les lumi\u00e8res. Quand les nuits sont claires, le spectacle y est de toute beaut\u00e9. Je mesure la chance que j&#8217;ai de pouvoir pratiquer des observations nocturnes depuis chez moi sans avoir besoin de parcourir des dizaines de kilom\u00e8tres ! Car je sais qu&#8217;un nombre croissant d&#8217;astronomes amateurs sont contraints de faire de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/11\/10\/en-video-lastrophoto-a-distance-comment-ca-marche\/\" target=\"_blank\" rel=\"noopener\">l&#8217;astrophoto \u00e0 distance<\/a>. Je peux donc sans effort suivre le <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/10\/26\/depuis-le-beaujolais-la-comete-lemmon-se-devoile-enfin\/\" target=\"_blank\" rel=\"noopener\">passage d&#8217;une com\u00e8te<\/a>, admirer une<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/11\/aurore-boreale-dans-le-ciel-du-beaujolais\/\" target=\"_blank\" rel=\"noopener\"> aurore bor\u00e9ale<\/a>, ou encore <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/07\/07\/croquis-celestes-le-plaisir-au-bout-du-crayon\/\" target=\"_blank\" rel=\"noopener\">dessiner derri\u00e8re mon t\u00e9lescope<\/a>.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/11\/rotation3.jpeg\" rel=\"lightbox[22011]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-22012\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/11\/rotation3-450x270.jpeg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/11\/rotation3-450x270.jpeg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/11\/rotation3-1024x615.jpeg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/11\/rotation3-768x461.jpeg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2025\/11\/rotation3.jpeg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>La nuit derni\u00e8re, la temp\u00e9rature est descendue \u00e0 -5 degr\u00e9s. Le ciel s&#8217;est d\u00e9gag\u00e9, un l\u00e9ger vent du nord emp\u00eachant le d\u00e9p\u00f4t de givre sur les optiques. Les conditions \u00e9taient donc id\u00e9ales pour r\u00e9aliser une rotation d&#8217;\u00e9toiles. J&#8217;ai orient\u00e9 mon appareil photo (un Nikkon D7100) en direction du p\u00f4le c\u00e9leste (<a href=\"https:\/\/www.stelvision.com\/astro\/etoile-polaire\/\" target=\"_blank\" rel=\"noopener\">l&#8217;\u00e9toile polaire<\/a> se situe dans les hautes branches \u00e0\u00a0 droite). Entre 5 heures et 7 heures du matin, j&#8217;ai r\u00e9alis\u00e9 130 poses de 45 secondes \u00e0 800 iso, que j&#8217;ai additionn\u00e9es avec le logiciel\u00a0<a href=\"https:\/\/www.ggrillot.fr\/astro\/starmax.html\" target=\"_blank\" rel=\"noopener\">StarMax<\/a>. Sur pied fixe, le bo\u00eetier, \u00e9quip\u00e9 d&#8217;un objectif de 24 millim\u00e8tres de focale, a ainsi enregistr\u00e9 la rotation apparente de la vo\u00fbte c\u00e9leste (c&#8217;est en r\u00e9alit\u00e9 la Terre qui tourne).<\/p>\n<h5>\u00a0 Vous pourriez aimer :<\/h5>\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/10\/24\/comment-photographier-une-rotation-detoiles\/\" target=\"_blank\" rel=\"noopener\">Comment photographier une rotation d\u2019\u00e9toiles<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/08\/24\/la-chapelle-de-saint-bonnet-en-beaujolais-sous-la-grande-ourse\/\" target=\"_blank\" rel=\"noopener\">La chapelle de Saint-Bonnet en Beaujolais sous la Grande Ourse<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2019\/06\/24\/file-detoiles-derriere-le-moulin-de-saint-michel-lobservatoire\/\" target=\"_blank\" rel=\"noopener\">Fil\u00e9 d\u2019\u00e9toiles derri\u00e8re le moulin de Saint-Michel l\u2019Observatoire<\/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>.<\/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>Certaines des nuits de cette fin novembre sont belles dans le Beaujolais, \u00e0 condition d&#8217;accepter les temp\u00e9ratures n\u00e9gatives. Nuits cristallines : Depuis le Beaujolais, je profite d&#8217;un ciel relativement \u00e9pargn\u00e9 par les lumi\u00e8res. Quand les nuits sont claires, le spectacle y est de toute beaut\u00e9. Je mesure la chance que j&#8217;ai de pouvoir pratiquer des &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/11\/22\/tourbillon-detoiles-dans-le-ciel-du-beaujolais\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Tourbillon d&#8217;\u00e9toiles dans le ciel du Beaujolais<\/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":22012,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[84],"tags":[2906,98,3871,1197,963],"class_list":["post-22011","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciel-etoile","tag-beaujolais","tag-etoile-polaire","tag-nikkon","tag-rotation-detoiles","tag-starmax"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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