{"id":20263,"date":"2024-10-09T13:00:08","date_gmt":"2024-10-09T13:00:08","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=20263"},"modified":"2024-10-20T12:44:14","modified_gmt":"2024-10-20T12:44:14","slug":"comment-immortaliser-la-comete-tsuchinshan-atlas","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/09\/comment-immortaliser-la-comete-tsuchinshan-atlas\/","title":{"rendered":"Comment immortaliser la com\u00e8te Tsuchinshan-ATLAS"},"content":{"rendered":"<p><strong>Quand une belle com\u00e8te se pr\u00e9sente, on a tous envie d&#8217;en garder la trace. Pr\u00e9parez-vous, la com\u00e8te C\/2023 A3 Tsuchinshan-ATLAS arrive !<\/strong><\/p>\n<h5>Com\u00e8te \u00e0 l&#8217;horizon :<\/h5>\n<p>La com\u00e8te C\/2023 A3 Tsuchinshan-ATLAS (que l&#8217;on peut encore suivre dans le\u00a0<a href=\"https:\/\/soho.nascom.nasa.gov\/data\/realtime\/c3\/512\/\" target=\"_blank\" rel=\"noopener\">coronographe de la sonde SOHO<\/a>), va devenir visible sur l&#8217;horizon Ouest en fin de journ\u00e9e \u00e0 partir du 12 octobre. Si son \u00e9clat est conforme aux pr\u00e9visions, elle sera observable \u00e0 l&#8217;\u0153il nu. Elle &#8220;grimpera&#8221; chaque soir un peu plus dans le ciel, devenant visible de plus en plus longtemps. Dans le m\u00eame temps, son \u00e9clat (on parle de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/05\/06\/quest-lechelle-magnitudes-astronomie\/\" target=\"_blank\" rel=\"noopener\">magnitude<\/a>) va diminuer progressivement car elle s&#8217;\u00e9loigne du Soleil. Voici quelques conseils pour la photographier.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/09\/comet-1.jpg\" rel=\"lightbox[20263]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-20239\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/09\/comet-1-450x413.jpg\" alt=\"\" width=\"450\" height=\"413\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/09\/comet-1-450x413.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/09\/comet-1.jpg 552w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<h5>Avec un appareil photo :<\/h5>\n<p>Les premiers soirs, l&#8217;astre chevelu sera assez bas, l&#8217;occasion de r\u00e9aliser de jolies compositions avec un premier plan. Un appareil photo sur pied avec des focales de 50 \u00e0 200 millim\u00e8tres fournira de beaux clich\u00e9s. La sensibilit\u00e9 (de 100 \u00e0 3200 iso) et la vitesse de prise de vues (de une \u00e0 cinq secondes) d\u00e9pendront de la luminosit\u00e9 de la com\u00e8te et de la clart\u00e9 du fond du ciel. D\u00e9clenchez l&#8217;appareil sans le toucher (avec un retardateur ou un c\u00e2ble d\u00e9di\u00e9) pour \u00e9viter les vibrations. Voici quelques images r\u00e9alis\u00e9es en 2020 lors du passage de la com\u00e8te <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2020\/07\/19\/la-comete-neowise-dans-le-parc-naturel-regional-du-morvan\/\" target=\"_blank\" rel=\"noopener\">Neowise<\/a> :<\/p>\n<figure id=\"attachment_18295\" aria-describedby=\"caption-attachment-18295\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/08\/neowise.jpg\" rel=\"lightbox[20263]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-18295\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/08\/neowise-450x270.jpg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/08\/neowise-450x270.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/08\/neowise-1024x615.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/08\/neowise-768x461.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/08\/neowise.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-18295\" class=\"wp-caption-text\">D\u00e9but juillet \u00e0 l&#8217;aube. Bo\u00eetier Panasonic FZ 82, focale de 35 millim\u00e8tres (zoom) et une pose de 4 secondes \u00e0 100 iso avec le ch\u00e2teau de Murol (Auvergne) au premier clan.<\/figcaption><\/figure>\n<figure id=\"attachment_12208\" aria-describedby=\"caption-attachment-12208\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/07\/comet-2.jpg\" rel=\"lightbox[20263]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-12208\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/07\/comet-2-450x270.jpg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/07\/comet-2-450x270.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/07\/comet-2-1024x615.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/07\/comet-2-768x461.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/07\/comet-2.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-12208\" class=\"wp-caption-text\">Mi-juillet \u00e0 l&#8217;aube, Nikon D3200, focale de 75 millim\u00e8tres (zoom) et une pose d&#8217;une seconde \u00e0 800 iso. Christine prend la pose \u00e0 une dizaine de m\u00e8tres.<\/figcaption><\/figure>\n<figure id=\"attachment_19207\" aria-describedby=\"caption-attachment-19207\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet-1.jpg\" rel=\"lightbox[20263]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-19207\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet-1-450x271.jpg\" alt=\"\" width=\"450\" height=\"271\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet-1-450x271.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet-1-1024x616.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet-1-768x462.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/03\/comet-1.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-19207\" class=\"wp-caption-text\">Fin juillet en soir\u00e9e sous le ciel particuli\u00e8rement pur du Morvan. Une pose de 5 secondes \u00e0 3200 iso, bo\u00eetier Nikkon D7100, objectif de 50 mm focale fixe.<\/figcaption><\/figure>\n<h5>Avec un smartphone :<\/h5>\n<p>Les t\u00e9l\u00e9phones mobiles ne cessent d\u2019\u00e9voluer, en particulier en photographie. Capteurs de plus en plus sensibles et fonctionnalit\u00e9s enrichies offrent de nouvelles possibilit\u00e9s de prises de vues. Au point que certains n\u2019h\u00e9sitent plus \u00e0 pointer leur smartphone en direction du ciel nocturne. C\u2019est le choix qu\u2019a fait\u00a0<a href=\"https:\/\/www.facebook.com\/groups\/817281208316569\/user\/100023858800104\" target=\"_blank\" rel=\"noopener\">Yann Grouselle<\/a>. Les conseils qu&#8217;il donne pour photographier la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/08\/26\/en-video-quest-ce-que-la-voie-lactee\/\" target=\"_blank\" rel=\"noopener\">Voie lact\u00e9e<\/a> s&#8217;appliquent \u00e9galement aux com\u00e8tes\u00a0:<\/p>\n<p><iframe loading=\"lazy\" title=\"Tuto photo voie lact\u00e9e au smartphone\" width=\"474\" height=\"267\" src=\"https:\/\/www.youtube.com\/embed\/LFmWC4sXhBU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>Conseils valables pour l\u2019ensemble des smartphones disponibles aujourd\u2019hui, pour peu qu\u2019il soit possible de r\u00e9gler leur sensibilit\u00e9 et de faire des poses longues de plusieurs secondes.<\/p>\n<h5>Avec un t\u00e9lescope :<\/h5>\n<p>La plupart des com\u00e8tes ne sont pas assez lumineuses et\/ou pas assez \u00e9tendues pour \u00eatre photographi\u00e9es avec un simple appareil photo ou un smartphone. Pour celles et ceux qui attraperont le virus des com\u00e8tes, un t\u00e9lescope deviendra vite indispensable. L&#8217;instrument devra \u00eatre motoris\u00e9, puisqu&#8217;il faudra en m\u00eame temps compenser la rotation de la Terre et le mouvement propre de la com\u00e8te devant les \u00e9toiles. \u00c9coutons Christophe de la Chapelle (<a href=\"https:\/\/www.youtube.com\/@cdlc48\" target=\"_blank\" rel=\"noopener\">La Cha\u00eene Astro<\/a>) \u00e0 l&#8217;occasion du passage de la com\u00e8te <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2018\/11\/28\/comment-observer-46p-wirtanen-la-comete-de-lannee\/\" target=\"_blank\" rel=\"noopener\">46P\/Wirtanen<\/a> en 2018 :<\/p>\n<p><iframe loading=\"lazy\" title=\"comment photographier une com\u00e8te avec une monture \u00e9quatoriale?\" width=\"474\" height=\"267\" src=\"https:\/\/www.youtube.com\/embed\/VTorbEtsAjY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>J&#8217;esp\u00e8re que tous ces conseils pourront vous \u00eatre utiles. Si vous avez des questions, n&#8217;h\u00e9sitez pas \u00e0 les poser plus bas en laissant un commentaire !<\/p>\n<h5>Vous pourriez aimer :<\/h5>\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/01\/surprise-une-nouvelle-comete-sannonce-spectaculaire\/\" target=\"_blank\" rel=\"noopener\">Surprise ! Une nouvelle com\u00e8te s\u2019annonce spectaculaire !<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/06\/26\/la-comete-13p-olbers-revient-nous-rendre-visite\/\" target=\"_blank\" rel=\"noopener\">La com\u00e8te 13P\/Olbers revient nous rendre visite<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2023\/09\/02\/la-comete-nishimura-assaillie-par-le-vent-solaire\/\" target=\"_blank\" rel=\"noopener\">La com\u00e8te Nishimura assaillie par le vent solaire<\/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>Quand une belle com\u00e8te se pr\u00e9sente, on a tous envie d&#8217;en garder la trace. Pr\u00e9parez-vous, la com\u00e8te C\/2023 A3 Tsuchinshan-ATLAS arrive ! Com\u00e8te \u00e0 l&#8217;horizon : La com\u00e8te C\/2023 A3 Tsuchinshan-ATLAS (que l&#8217;on peut encore suivre dans le\u00a0coronographe de la sonde SOHO), va devenir visible sur l&#8217;horizon Ouest en fin de journ\u00e9e \u00e0 partir du &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/09\/comment-immortaliser-la-comete-tsuchinshan-atlas\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Comment immortaliser la com\u00e8te Tsuchinshan-ATLAS<\/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":20264,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[3648,2662,3636,2661,3134,3135],"class_list":["post-20263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-appareil-photo","tag-christophe-de-la-chapelle","tag-comete-c-2023-a3-tsuchinshan-atlas","tag-la-chaine-astro","tag-smartphone","tag-yann-grouselle"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Comment immortaliser la com\u00e8te Tsuchinshan-ATLAS<\/title>\n<meta name=\"description\" content=\"Quand une belle com\u00e8te se pr\u00e9sente, on a tous envie d&#039;en garder la trace. Pr\u00e9parez-vous, la com\u00e8te C\/2023 A3 Tsuchinshan-ATLAS arrive !\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/10\/09\/comment-immortaliser-la-comete-tsuchinshan-atlas\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comment immortaliser la com\u00e8te Tsuchinshan-ATLAS\" \/>\n<meta property=\"og:description\" content=\"Quand une belle com\u00e8te se pr\u00e9sente, on a tous envie d&#039;en garder la trace. 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