{"id":23376,"date":"2026-10-20T12:01:06","date_gmt":"2026-10-20T12:01:06","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=23376"},"modified":"2026-10-22T07:35:29","modified_gmt":"2026-10-22T07:35:29","slug":"plus-de-2000-galaxies-decouvertes-dans-la-vierge","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2026\/10\/20\/plus-de-2000-galaxies-decouvertes-dans-la-vierge\/","title":{"rendered":"Plus de 2000 galaxies d\u00e9couvertes dans la Vierge"},"content":{"rendered":"<p><strong>Men\u00e9 depuis une d\u00e9cennie \u00e0 Hawa\u00ef, un sondage profond de l&#8217;amas de la Vierge a r\u00e9v\u00e9l\u00e9 l&#8217;existence de plus de 2000 nouvelles galaxies.\u00a0<\/strong><\/p>\n<h5>Une constellation difficile \u00e0 visualiser :<\/h5>\n<p>Coinc\u00e9e entre le <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Lion_(constellation)\" target=\"_blank\" rel=\"noopener\">Lion<\/a> \u00e0 l\u2019Ouest et la <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Balance_(constellation)\" target=\"_blank\" rel=\"noopener\">Balance<\/a> \u00e0 l\u2019Est, la Vierge a une forme peu \u00e9vocatrice. Avouez que cette grande constellation ne rappelle gu\u00e8re les d\u00e9esses de l\u2019Antiquit\u00e9 qui y sont associ\u00e9es. Heureusement pour elle, sa plus brillante \u00e9toile, Spica (<a href=\"https:\/\/fr.wikipedia.org\/wiki\/Alpha_Virginis\" target=\"_blank\" rel=\"noopener\">Alpha Virginis<\/a>), est assez facilement rep\u00e9rable :<\/p>\n<figure id=\"attachment_15869\" aria-describedby=\"caption-attachment-15869\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/nuit_vienne.jpg\" rel=\"lightbox[23376]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-15869\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/nuit_vienne-450x270.jpg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/nuit_vienne-450x270.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/nuit_vienne-1024x615.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/nuit_vienne-768x461.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/nuit_vienne.jpg 1498w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-15869\" class=\"wp-caption-text\">La constellation de la Vierge en d\u00e9but de nuit au printemps. \u00a9 CIELMANIA\/<a href=\"https:\/\/www.facebook.com\/jean.aimar.71\" target=\"_blank\" rel=\"noopener\">J. Fran\u00e7ois<\/a><\/figcaption><\/figure>\n<p>L\u2019astronome <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Charles_Messier\" target=\"_blank\" rel=\"noopener\">Charles Messier<\/a> fut le premier \u00e0 y d\u00e9couvrir des galaxies en 1781, qu&#8217;il consigna dans son <a href=\"https:\/\/www.futura-sciences.com\/sciences\/actualites\/astronomie-astronomie-catalogue-messier-250-ans-16597\/\" target=\"_blank\" rel=\"noopener\">c\u00e9l\u00e8bre catalogue<\/a>. \u00c0 la fin du XXe si\u00e8cle, on en d\u00e9nombrait environ 1.500, regroup\u00e9es dans un amas situ\u00e9 \u00e0 une distance d&#8217;environ 50 millions d\u2019<a href=\"https:\/\/fr.wikipedia.org\/wiki\/Ann%C3%A9e-lumi%C3%A8re\" target=\"_blank\" rel=\"noopener\">ann\u00e9es-lumi\u00e8re<\/a> :<\/p>\n<figure id=\"attachment_15871\" aria-describedby=\"caption-attachment-15871\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/amas_vierge.jpg\" rel=\"lightbox[23376]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-15871\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/amas_vierge-450x243.jpg\" alt=\"\" width=\"450\" height=\"243\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/amas_vierge-450x243.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/amas_vierge-1024x552.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/amas_vierge-768x414.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/amas_vierge-1536x828.jpg 1536w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2022\/05\/amas_vierge.jpg 1615w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-15871\" class=\"wp-caption-text\">Une multitude de galaxies sont visibles dans l&#8217;amas de la Vierge. \u00a9 <a href=\"https:\/\/www.deepskycolors.com\/about\/\" target=\"_blank\" rel=\"noopener\">Rogelio Bernal Andreo<\/a><\/figcaption><\/figure>\n<p>Depuis une d\u00e9cennie, les astronomes ont entrepris de sonder en profondeur cet amas de galaxies. Pour cela, ils ont utilis\u00e9 le <a href=\"https:\/\/www.cfht.hawaii.edu\/\" target=\"_blank\" rel=\"noopener\">Canada-France-Hawa\u00ef T\u00e9lescope<\/a> et <a href=\"https:\/\/irfu.cea.fr\/dap\/megacam-2\/\" target=\"_blank\" rel=\"noopener\">MegaCam<\/a>, une cam\u00e9ra grand champ de 380 m\u00e9gapixels. Leur sondage, le NGVS (<a href=\"https:\/\/www.cfht.hawaii.edu\/en\/news\/NGVS-2026Oct\/CFHT-NGVS-Press-Release.html\" target=\"_blank\" rel=\"noopener\"><em>Next Generation Virgo Cluster Survey<\/em><\/a>), vient de s&#8217;achever. Et le moins que l&#8217;on puisse dire, c&#8217;est qu&#8217;il a \u00e9t\u00e9 fructueux, puisqu&#8217;il a r\u00e9v\u00e9l\u00e9 l&#8217;existence de plus de 2000 nouvelles galaxies. D\u00e9sormais, l&#8217;amas de la Vierge compte officiellement 3680 membres, augmentant ainsi la population de galaxies d&#8217;un facteur 2,3. Ce sondage profond va offrir aux astronomes l&#8217;opportunit\u00e9 d&#8217;\u00e9tudier la formation, l&#8217;\u00e9volution et les interactions au sein d&#8217;un amas de galaxies.<\/p>\n<figure id=\"attachment_23377\" aria-describedby=\"caption-attachment-23377\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2026\/10\/CFHT.jpg\" rel=\"lightbox[23376]\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-23377 size-medium\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2026\/10\/CFHT-450x270.jpg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2026\/10\/CFHT-450x270.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2026\/10\/CFHT-1024x614.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2026\/10\/CFHT-768x461.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2026\/10\/CFHT.jpg 1200w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-23377\" class=\"wp-caption-text\">Repr\u00e9sentation de l&#8217;empreinte du NGVS (qui couvre une superficie apparente 500 fois plus grande que la Pleine Lune) au-dessus du CFHT. <a href=\"https:\/\/nrc.canada.ca\/en\/stories\/canadian-led-team-uncover-over-2000-new-galaxies-our-cosmic-backyard\" target=\"_blank\" rel=\"noopener\">NGVS\/CFHT\/Jean-Charles Cuillandre<\/a><\/figcaption><\/figure>\n<h5>Vous pourriez aimer :<\/h5>\n<ul>\n<li style=\"list-style-type: none\">\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/24\/arp-116-un-etrange-couple-de-galaxies-dans-la-vierge\/\" target=\"_blank\" rel=\"noopener\">ARP 116, un \u00e9trange couple de galaxies dans la Vierge<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2020\/05\/08\/une-supernova-explose-dans-la-galaxie-spirale-messier-61\/\" target=\"_blank\" rel=\"noopener\">Une supernova explose dans la galaxie spirale Messier 61<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2024\/06\/28\/dans-la-vierge-lenigme-des-galaxies-jumelles\/\" target=\"_blank\" rel=\"noopener\">Dans la Vierge, l\u2019\u00e9nigme des galaxies jumelles<\/a><\/li>\n<\/ul>\n<\/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>Men\u00e9 depuis une d\u00e9cennie \u00e0 Hawa\u00ef, un sondage profond de l&#8217;amas de la Vierge a r\u00e9v\u00e9l\u00e9 l&#8217;existence de plus de 2000 nouvelles galaxies.\u00a0 Une constellation difficile \u00e0 visualiser : Coinc\u00e9e entre le Lion \u00e0 l\u2019Ouest et la Balance \u00e0 l\u2019Est, la Vierge a une forme peu \u00e9vocatrice. Avouez que cette grande constellation ne rappelle gu\u00e8re &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2026\/10\/20\/plus-de-2000-galaxies-decouvertes-dans-la-vierge\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Plus de 2000 galaxies d\u00e9couvertes dans la Vierge<\/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":15870,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[84],"tags":[1843,133,113,4041,1426],"class_list":["post-23376","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciel-etoile","tag-amas-de-la-vierge","tag-charles-messier","tag-constellation-de-la-vierge","tag-next-generation-virgo-cluster-survey","tag-telescope-cfht"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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