{"id":2747,"date":"2026-05-28T19:23:08","date_gmt":"2026-05-28T17:23:08","guid":{"rendered":"http:\/\/localhost\/messier\/m33"},"modified":"2026-06-04T14:47:34","modified_gmt":"2026-06-04T12:47:34","slug":"m33-2","status":"publish","type":"messier_object","link":"https:\/\/voyage-astrophoto.fr\/index.php\/messier\/m33-2\/","title":{"rendered":"M33 &#8211; Galaxie du Triangle"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">M33, la Galaxie du Triangle, fut probablement observ\u00e9e par Guillaume Le Gentil en 1764, mais la premi\u00e8re description d\u00e9taill\u00e9e revient \u00e0 William Herschel en 1784. Charles Messier l&rsquo;inscrivit dans son catalogue le m\u00eame jour que M31 et M32. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M33 est la troisi\u00e8me plus grande galaxie du Groupe Local apr\u00e8s M31 et la Voie lact\u00e9e, contenant environ 40 milliards d&rsquo;\u00e9toiles. Elle est situ\u00e9e \u00e0 environ 2,7 millions d&rsquo;ann\u00e9es-lumi\u00e8re et est vue presque parfaitement de face, ce qui permet d&rsquo;\u00e9tudier la structure spirale de notre propre galaxie par analogie. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M33 contient plusieurs r\u00e9gions HII brillantes, dont NGC 604, l&rsquo;une des plus grandes r\u00e9gions de formation stellaire du Groupe Local. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La galaxie poss\u00e8de \u00e9galement un trou noir supermassif en son centre, d\u00e9tect\u00e9 par les mouvements des \u00e9toiles avoisinantes. <\/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-2747","messier_object","type-messier_object","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/messier_object\/2747","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=2747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}