{"id":2782,"date":"2026-05-28T19:23:08","date_gmt":"2026-05-28T17:23:08","guid":{"rendered":"http:\/\/localhost\/messier\/m68"},"modified":"2026-06-09T14:59:45","modified_gmt":"2026-06-09T12:59:45","slug":"m68-2","status":"publish","type":"messier_object","link":"https:\/\/voyage-astrophoto.fr\/index.php\/messier\/m68-2\/","title":{"rendered":"M68 &#8211; Amas Globulaire M68"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">M68 fut d\u00e9couvert par Charles Messier le 9 avril 1780. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cet amas globulaire est situ\u00e9 \u00e0 environ 33 600 ann\u00e9es-lumi\u00e8re de la Terre, dans la constellation de l&rsquo;Hydre. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il contient environ 200 000 \u00e9toiles dans un diam\u00e8tre d&rsquo;environ 100 ann\u00e9es-lumi\u00e8re. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Il est class\u00e9 comme un amas de classe X, indiquant une concentration stellaire tr\u00e8s faible vers son centre. Cette faible concentration, combin\u00e9e \u00e0 une absorption interstellaire mod\u00e9r\u00e9e, rend l&rsquo;amas relativement difficile \u00e0 r\u00e9soudre en \u00e9toiles individuelles. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M68 fait partie des amas globulaires qui ont \u00e9t\u00e9 intensivement \u00e9tudi\u00e9s pour leurs populations d&rsquo;\u00e9toiles variables, notamment les \u00e9toiles RR Lyrae utilis\u00e9es comme chandelles standards. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&rsquo;amas est observable avec des t\u00e9lescopes d&rsquo;au moins 100 mm d&rsquo;ouverture. <\/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-2782","messier_object","type-messier_object","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/voyage-astrophoto.fr\/index.php\/wp-json\/wp\/v2\/messier_object\/2782","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=2782"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}