No\u00ebl… dans l’espace. La Nasa a diffus\u00e9, mardi 19 d\u00e9cembre, une image de l’amas d’\u00e9toiles NGC 2264, \u00e9galement connu sous le nom d'\u00a0\u00bbamas du sapin de No\u00ebl\u00a0\u00bb. On y voit de \u00ab\u00a0jeunes\u00a0\u00bb \u00e9toiles, \u00ab\u00a0\u00e2g\u00e9es d’environ un \u00e0 cinq millions d\u2019ann\u00e9es\u00a0\u00bb, pr\u00e9cise la Nasa, situ\u00e9es dans la Voie lact\u00e9e \u00ab\u00a0\u00e0 environ 2 500 ann\u00e9es-lumi\u00e8re de la Terre\u00a0\u00bb.<\/p>\n\n\n\n
Elles sont entour\u00e9es d’une n\u00e9buleuse color\u00e9e en vert.Pour renforcer la ressemblance, l’observatoire \u00e0 rayons X Chandra de la Nasa a publi\u00e9 \u00e0 son tour une image anim\u00e9e, faisant clignoter certaines \u00e9toiles telle une guirlande. \u00ab\u00a0\u00c7a me plonge dans l’esprit des f\u00eates\u00a0\u00bb, a comment\u00e9 l’astronaute Buzz Aldrin sur X.<\/p>\n\n\n\n
Cette image est le r\u00e9sultat d’une combinaison de \u00ab\u00a0donn\u00e9es de plusieurs t\u00e9lescopes, optiques, infrarouges et \u00e0 rayons X\u00a0\u00bb, pr\u00e9cise la Cit\u00e9 de l’espace de Toulouse sur son site. La n\u00e9buleuse de gaz a \u00e9t\u00e9 observ\u00e9e par le t\u00e9lescope optique WIYN situ\u00e9 aux Etats-Unis, certaines \u00e9toiles ont \u00e9t\u00e9 captur\u00e9es par le t\u00e9lescope \u00e0 rayons X Chandra et d’autres par le projet 2MASS. <\/p>\n\n\n\n
Ces diff\u00e9rentes versions sont disponibles en ligne.L’image a ensuite \u00e9t\u00e9 tourn\u00e9e \u00e0 160\u00b0 pour que le haut du sapin apparaisse en haut. \u00ab\u00a0L’amas peut se rep\u00e9rer \u00e0 l\u2019\u0153il nu, mais plus facilement aux jumelles ou au t\u00e9lescope\u00a0\u00bb, compl\u00e8te la Cit\u00e9 de l’espace.<\/p>\n","protected":false},"excerpt":{"rendered":"
No\u00ebl… dans l’espace. La Nasa a diffus\u00e9, mardi 19 d\u00e9cembre, une image de l’amas d’\u00e9toiles NGC 2264, \u00e9galement connu sous<\/p>\n","protected":false},"author":1,"featured_media":27903,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-27902","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologie"],"_links":{"self":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts\/27902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27902"}],"version-history":[{"count":1,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts\/27902\/revisions"}],"predecessor-version":[{"id":27904,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/posts\/27902\/revisions\/27904"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=\/wp\/v2\/media\/27903"}],"wp:attachment":[{"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dekkbi.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}