{"id":2775,"date":"2026-05-28T19:23:08","date_gmt":"2026-05-28T17:23:08","guid":{"rendered":"http:\/\/localhost\/messier\/m61"},"modified":"2026-06-09T10:56:23","modified_gmt":"2026-06-09T08:56:23","slug":"m61-2","status":"publish","type":"messier_object","link":"https:\/\/voyage-astrophoto.fr\/index.php\/messier\/m61-2\/","title":{"rendered":"M61 &#8211; Galaxie spirale M61"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">M61 fut d\u00e9couverte par Barnaba Oriani le 11 mai 1779 et ind\u00e9pendamment par Charles Messier le 15 mai 1779. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette galaxie spirale (type SABbc) est l&rsquo;une des plus grandes et des plus brillantes galaxies de l&rsquo;Amas de la Vierge, avec un diam\u00e8tre d&rsquo;environ 100 000 ann\u00e9es-lumi\u00e8re. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M61 montre une intense activit\u00e9 de formation stellaire, particuli\u00e8rement dans ses bras spiraux, et poss\u00e8de un noyau actif de type Seyfert 2. La galaxie a \u00e9t\u00e9 le site de plusieurs supernovae, dont SN 2008DH (d\u00e9couverte en 2008). <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Elle est situ\u00e9e \u00e0 environ 52,4 millions d&rsquo;ann\u00e9es-lumi\u00e8re et peut \u00eatre observ\u00e9e avec des t\u00e9lescopes d&rsquo;au moins 150 mm d&rsquo;ouverture comme une tache circulaire allong\u00e9e. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Sources: SEDS Messier Database, Wikipedia, NASA.<\/em><\/p>\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-2775","messier_object","type-messier_object","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/messier_object\/2775","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/messier_object"}],"about":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/types\/messier_object"}],"wp:attachment":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/media?parent=2775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}