{"id":20553,"date":"2025-02-26T15:38:18","date_gmt":"2025-02-26T15:38:18","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=20553"},"modified":"2025-03-12T17:26:32","modified_gmt":"2025-03-12T17:26:32","slug":"ic-349-la-nebuleuse-qui-defie-les-astrophotographes","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/02\/26\/ic-349-la-nebuleuse-qui-defie-les-astrophotographes\/","title":{"rendered":"IC 349, la n\u00e9buleuse qui d\u00e9fie les astrophotographes"},"content":{"rendered":"<p><strong>Au sein de l&#8217;amas des Pl\u00e9iades, la n\u00e9buleuse IC 349 est perdue dans la lumi\u00e8re de l&#8217;\u00e9toile M\u00e9rope, un vrai d\u00e9fi pour les astrophotographes.\u00a0<\/strong><\/p>\n<h5>N\u00e9buleuse fant\u00f4me :<\/h5>\n<p>IC 349 a \u00e9t\u00e9 d\u00e9nich\u00e9e le 14 novembre 1890 par l&#8217;astronome am\u00e9ricain <a href=\"https:\/\/pg-astro.fr\/grands-astronomes\/l-ere-moderne\/edward-emerson-barnard.html\" target=\"_blank\" rel=\"noopener\">Edward Emerson Barnard<\/a>. On doit \u00e0 ce dernier de nombreuses d\u00e9couvertes, comme par exemple le cinqui\u00e8me satellite de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/11\/29\/jupiter-tres-en-beaute-une-semaine-avant-son-opposition\/\" target=\"_blank\" rel=\"noopener\">Jupiter<\/a>, Amalth\u00e9e (1892). IC 349 est une petite zone poussi\u00e9reuse tr\u00e8s brillante sculpt\u00e9e par la <a href=\"http:\/\/sesp.esep.pro\/pages_nanosats\/pression-radiation-solaire.html\" target=\"_blank\" rel=\"noopener\">pression de radiation<\/a> exerc\u00e9e par sa brillante voisine, <a href=\"https:\/\/www.bastienfoucher.com\/galeries\/nebuleuses-couleurs-naturelles\/merope\" target=\"_blank\" rel=\"noopener\">M\u00e9rope<\/a>. Cette \u00e9toile de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/05\/06\/quest-lechelle-magnitudes-astronomie\/\" target=\"_blank\" rel=\"noopener\">magnitude<\/a> 4 fait partie des astres les plus lumineux au sein du c\u00e9l\u00e8bre amas des Pl\u00e9iades :<\/p>\n<figure id=\"attachment_20560\" aria-describedby=\"caption-attachment-20560\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/pleiades.jpg\" rel=\"lightbox[20553]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-20560\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/pleiades-450x295.jpg\" alt=\"\" width=\"450\" height=\"295\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/pleiades-450x295.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/pleiades-1024x671.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/pleiades-768x503.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/pleiades.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-20560\" class=\"wp-caption-text\">Le c\u00e9l\u00e8bre amas des Pl\u00e9iades et ses plus brillantes \u00e9toiles. \u00a9 <a href=\"https:\/\/saplimoges.fr\/limage-du-mois-davril-2015-les-pleiades\/\" target=\"_blank\" rel=\"noopener\">SAP Limoges<\/a><\/figcaption><\/figure>\n<p>Saisir les d\u00e9licates volutes poussi\u00e9reuses de IC 349 est \u00e0 la port\u00e9e du <a href=\"https:\/\/science.nasa.gov\/image-detail\/37597023665-4b92781d06-o\/\" target=\"_blank\" rel=\"noopener\">t\u00e9lescope spatial Hubble<\/a>. Hors de l&#8217;atmosph\u00e8re, l&#8217;instrument ne souffre pas trop de la diffusion lumineuse autour de M\u00e9rope :<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope1.jpg\" rel=\"lightbox[20553]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-20561\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope1-401x450.jpg\" alt=\"\" width=\"401\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope1-401x450.jpg 401w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope1.jpg 645w\" sizes=\"auto, (max-width: 401px) 100vw, 401px\" \/><\/a><\/p>\n<p>Pour les astrophotographes, le d\u00e9fi est de taille, car la n\u00e9buleuse est dix mille fois moins brillante que sa voisine M\u00e9rope. Voisine \u00e0 nos yeux seulement, car l&#8217;\u00e9cart r\u00e9el entre ces deux astres est quand m\u00eame de 3500 <a href=\"https:\/\/www.futura-sciences.com\/sciences\/definitions\/univers-unite-astronomique-63\/\" target=\"_blank\" rel=\"noopener\">Unit\u00e9s astronomiques<\/a>. Il faut tout le savoir-faire de <a href=\"https:\/\/www.facebook.com\/photo?fbid=10234862084643831&amp;set=a.3970791718887\" target=\"_blank\" rel=\"noopener\">Alessandro Ravagnin<\/a> pour r\u00e9v\u00e9ler la tr\u00e8s discr\u00e8te IC 349 :<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope2.jpg\" rel=\"lightbox[20553]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-20562\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope2-450x303.jpg\" alt=\"\" width=\"450\" height=\"303\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope2-450x303.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope2-1024x690.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope2-768x518.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2024\/12\/merope2.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<h5>\u00c0 propos des Pl\u00e9iades :<\/h5>\n<p>En 1771, l\u2019astronome fran\u00e7ais Charles Messier enregistre l\u2019amas des Pl\u00e9iades \u00e0 la quarante-cinqui\u00e8me position de son c\u00e9l\u00e8bre\u00a0<a href=\"https:\/\/www.futura-sciences.com\/sciences\/actualites\/astronomie-astronomie-catalogue-messier-250-ans-16597\/\" target=\"_blank\" rel=\"noopener\">catalogue<\/a>. Il s\u2019inscrit dans une longue liste d\u2019observateurs qui, depuis l\u2019Antiquit\u00e9, admirent ce petit groupe d\u2019\u00e9toiles. Vers 850 avant J.-C., le po\u00e8te grec Hom\u00e8re y faisait d\u00e9j\u00e0 r\u00e9f\u00e9rence dans<a href=\"https:\/\/www.futura-sciences.com\/sciences\/actualites\/astronomie-date-precise-retour-ulysse-ithaque-15980\/\" target=\"_blank\" rel=\"noopener\">\u00a0l\u2019Iliade et l\u2019Odyss\u00e9e<\/a>. On en retrouve la trace dans les cultures du monde entier. Que ce soit chez les Maoris de Nouvelle-Z\u00e9lande, les Perses, les Indiens, les Chinois, les Japonais ou encore les Mayas et les Azt\u00e8ques :<\/p>\n<figure id=\"attachment_17239\" aria-describedby=\"caption-attachment-17239\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/01\/pleiades.jpg\" rel=\"lightbox[20553]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-17239\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/01\/pleiades-450x271.jpg\" alt=\"\" width=\"450\" height=\"271\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/01\/pleiades-450x271.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/01\/pleiades-1024x616.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/01\/pleiades-768x462.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2023\/01\/pleiades.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-17239\" class=\"wp-caption-text\">98 heures de poses auront \u00e9t\u00e9 n\u00e9cessaires pour r\u00e9v\u00e9ler les filaments de poussi\u00e8re qui s&#8217;intercalent entre nous et le c\u00e9l\u00e8bre amas d&#8217;\u00e9toiles des Pl\u00e9iades. \u00a9 <a href=\"https:\/\/www.instagram.com\/jeffreyhorne\/\" target=\"_blank\" rel=\"noopener\">Jeffrey Horne<\/a><\/figcaption><\/figure>\n<p>\u00c0 l\u2019\u0153il nu, l\u2019amas des Pl\u00e9iades (Messier 45) ressemble \u00e0 un petit nuage constitu\u00e9 de sept \u00e9toiles relativement brillantes. Ces astres sont Alcyone, Atlas, M\u00e9rope, \u00c9lectre, Ma\u00efa, Tayg\u00e8te et Pl\u00e9ion\u00e9. Leurs\u00a0<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/05\/06\/quest-lechelle-magnitudes-astronomie\/\" target=\"_blank\" rel=\"noopener\">magnitudes<\/a>\u00a0varient entre 3 et 5. Les observateurs ayant une vue per\u00e7ante parviennent \u00e0 d\u00e9nombrer jusqu\u2019\u00e0 douze \u00e9toiles quand ils l\u2019observent sous un excellent ciel sans aucune\u00a0<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/06\/28\/pollution-lumineuse\/\" target=\"_blank\" rel=\"noopener\">pollution lumineuse<\/a>.<\/p>\n<h5>Vous pourriez aimer :<\/h5>\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2020\/03\/29\/escortee-par-la-lune-venus-se-dirige-vers-les-pleiades\/\" target=\"_blank\" rel=\"noopener\">Escort\u00e9e par la Lune, V\u00e9nus se dirige vers les Pl\u00e9iades<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/04\/22\/planete-mars-a-cote-de-lamas-pleiades\/\" target=\"_blank\" rel=\"noopener\">La plan\u00e8te Mars \u00e0 c\u00f4t\u00e9 de l\u2019amas des Pl\u00e9iades<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/01\/01\/les-hyades-et-les-pleiades-derriere-le-moulin-de-verzenay\/\" target=\"_blank\" rel=\"noopener\">Les Hyades et les Pl\u00e9iades derri\u00e8re le moulin de Verzenay<\/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>Au sein de l&#8217;amas des Pl\u00e9iades, la n\u00e9buleuse IC 349 est perdue dans la lumi\u00e8re de l&#8217;\u00e9toile M\u00e9rope, un vrai d\u00e9fi pour les astrophotographes.\u00a0 N\u00e9buleuse fant\u00f4me : IC 349 a \u00e9t\u00e9 d\u00e9nich\u00e9e le 14 novembre 1890 par l&#8217;astronome am\u00e9ricain Edward Emerson Barnard. On doit \u00e0 ce dernier de nombreuses d\u00e9couvertes, comme par exemple le cinqui\u00e8me &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2025\/02\/26\/ic-349-la-nebuleuse-qui-defie-les-astrophotographes\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">IC 349, la n\u00e9buleuse qui d\u00e9fie les astrophotographes<\/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":20554,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[84],"tags":[3260,713,669,3689,3690],"class_list":["post-20553","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciel-etoile","tag-alessandro-ravagnin","tag-amas-des-pleiades","tag-e-e-barnard","tag-ic-349","tag-merope"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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