{"id":12608,"date":"2016-06-24T00:00:25","date_gmt":"2016-06-23T22:00:25","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=12608"},"modified":"2016-06-15T08:04:55","modified_gmt":"2016-06-15T06:04:55","slug":"le-telescope-kepler-decouvre-une-exoplanete-de-la-taille-de-jupiter-et-potentiellement-habitable","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/le-telescope-kepler-decouvre-une-exoplanete-de-la-taille-de-jupiter-et-potentiellement-habitable\/","title":{"rendered":"Le t\u00e9lescope Kepler d\u00e9couvre une exoplan\u00e8te de la taille de Jupiter et potentiellement habitable"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p style=\"text-align: justify;\">Kepler-1647b \u00e9volue en orbite autour de deux \u00e9toiles et \u00e0 une distance de ses astres qui la rend potentiellement habitable&#8230;<\/p>\n<p style=\"text-align: justify;\">Le t\u00e9lescope orbital am\u00e9ricain Kepler vient de d\u00e9couvrir une nouvelle plan\u00e8te. Baptis\u00e9e Kepler-1647b, cette exoplan\u00e8te pr\u00e9sente d\u2019abord la particularit\u00e9 d\u2019\u00eatre aussi grande que Jupiter, initialement la plus grosse plan\u00e8te de notre syst\u00e8me solaire.<\/p>\n<p style=\"text-align: justify;\">Mais selon la Nasa, Kepler-1647b a surtout ceci d\u2019original : elle se trouve dans l\u2019orbite de deux \u00e9toiles diff\u00e9rentes qui tournent autour d\u2019un centre de gravit\u00e9 commun. Kepler1647-b est donc, selon les astronomes, une plan\u00e8te \u00ab circumbinaire \u00bb gazeuse, un syst\u00e8me assez rare.<\/p>\n<p style=\"text-align: justify;\">Habitable et ni trop chaude, ni trop froide<br \/>\nCette nouvelle plan\u00e8te, tournant autour de ces deux \u00e9toiles en 1.107 jours ou un peu plus de trois ann\u00e9es terrestres, se distingue \u00e9galement parce qu\u2019elle est bien plus \u00e9loign\u00e9e de ses deux \u00e9toiles que ne le sont en g\u00e9n\u00e9ral les exoplan\u00e8tes \u00ab circumbinaires \u00bb connues.<\/p>\n<p style=\"text-align: justify;\">Une distance qui la rend habitable et une t\u00e9mp\u00e9rature ni trop chaude ni trop froide, o\u00f9 l\u2019eau pourrait exister \u00e0 l\u2019\u00e9tat liquide. S\u2019agissant d\u2019une plan\u00e8te gazeuse, la vie a peu de chances de s\u2019y \u00eatre d\u00e9velopp\u00e9e, mais a pu \u00e9clore sur d\u2019\u00e9ventuelles lunes orbitant la plan\u00e8te.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p style=\"text-align: justify;\">\u00ab Outre son habitabilit\u00e9 potentielle, Kepler-1647b est importante car elle pourrait signaler l\u2019existence plus fr\u00e9quente d\u2019une population de grandes exoplan\u00e8tes circumbinaires avec des orbites \u00e9loign\u00e9es de leurs astres \u00bb, a, quant \u00e0 lui, annonc\u00e9 William Welsh \u00e0 la conf\u00e9rence de l\u2019American Astronomical Society qui se tient cette semaine en Californie (Etats-Unis).<br \/>\nLa nouvelle exoplan\u00e8te et la Terre ont le m\u00eame \u00e2ge<\/p>\n<p style=\"text-align: justify;\">Jusqu\u2019ici les scientifiques n\u2019avaient d\u00e9nombr\u00e9 que 11 syst\u00e8mes de ce type. La premi\u00e8re plan\u00e8te \u00ab circumbinaire \u00bb ayant \u00e9t\u00e9 d\u00e9couverte au d\u00e9but des ann\u00e9es 1990 dans la constellation du Scorpion.<\/p>\n<p style=\"text-align: justify;\">Selon la Nasa qui a fait part de cette d\u00e9couverte sur son site Internet, Kepler-1647b serait vieille de 4,4 milliards d\u2019ann\u00e9es, tout comme la Terre. Elle se situe \u00e0 3 700 ann\u00e9es-lumi\u00e8re de notre propre syst\u00e8me solaire, dans la constellation du Cygne.<\/p>\n<p style=\"text-align: justify;\">La pr\u00e9sence de Kepler-1647b avait \u00e9t\u00e9 signal\u00e9e pour la premi\u00e8re fois en 2011 par Laurance Doyle. Il aura cependant fallu plusieurs ann\u00e9es pour d\u00e9terminer pr\u00e9cis\u00e9ment les diff\u00e9rentes caract\u00e9ristiques de cette plan\u00e8te.<\/p>\n<p>source : <a href=\"http:\/\/www.20minutes.fr\/sciences\/1865715-20160614-telescope-kepler-decouvre-exoplanete-taille-jupiter-potentiellement-habitable\" target=\"_blank\">http:\/\/www.20minutes.fr\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"12608\">(389)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Kepler-1647b \u00e9volue en orbite autour de deux \u00e9toiles et \u00e0 une distance de ses astres qui la rend potentiellement habitable&#8230;&#8230;<\/p>\n","protected":false},"author":1,"featured_media":12609,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Le t\u00e9lescope Kepler d\u00e9couvre une exoplan\u00e8te de la taille de Jupiter et potentiellement habitable @laterredufutur","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[22],"tags":[1948,5922,121,5923],"class_list":["post-12608","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-extrasolaire","tag-kepler-1647b","tag-planete","tag-planete-gazeuse","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/06\/Kepler-1647b.jpg?fit=800%2C480&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-3hm","jetpack-related-posts":[{"id":1017,"url":"https:\/\/www.laterredufutur.com\/accueil\/kepler-30-un-systeme-qsolaireq-etranger-qui-ressemble-au-notre\/","url_meta":{"origin":12608,"position":0},"title":"Kepler-30, un syst\u00e8me \u00ab\u00a0solaire\u00a0\u00bb \u00e9tranger qui ressemble au n\u00f4tre","author":"Admin","date":"19 ao\u00fbt 2012","format":false,"excerpt":"Des astronomes ont d\u00e9couvert un syst\u00e8me solaire \u00e9tranger dont les plan\u00e8tes sont organis\u00e9es de la m\u00eame fa\u00e7on que dans notre propre syst\u00e8me. Cette d\u00e9couverte laisse \u00e0 penser que la plupart des syst\u00e8mes plan\u00e9taires commencent par ressembler au n\u00f4tre, indiquent les scientifiques.","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"kepler 30","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2012\/08\/kepler30-1.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1352,"url":"https:\/\/www.laterredufutur.com\/accueil\/deux-super-terres-dans-une-zone-habitable\/","url_meta":{"origin":12608,"position":1},"title":"Deux super Terres dans une zone habitable","author":"Admin","date":"25 avril 2013","format":false,"excerpt":"Le satellite Kepler, de la Nasa, vient de d\u00e9busquer un syst\u00e8me plan\u00e9taire remarquable constitu\u00e9 de cinq plan\u00e8tes, dont deux sont dans la zone habitable. Une p\u00e9pite pour l'exobiologie Retenez ce nom : Kepler 62. C'est ainsi qu'est baptis\u00e9 le syst\u00e8me extrasolaire le plus prometteur pour les exobiologistes. Il est situ\u00e9\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"kepler","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2011\/12\/kepler-0.jpg?fit=494%2C351&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7809,"url":"https:\/\/www.laterredufutur.com\/accueil\/dites-bonjour-a-la-terre-2-0-kepler-vient-de-faire-une-decouverte-historique\/","url_meta":{"origin":12608,"position":2},"title":"Dites bonjour \u00e0 la Terre 2.0, Kepler vient de faire une d\u00e9couverte historique","author":"Admin","date":"23 juillet 2015","format":false,"excerpt":"Rappelez-vous le nom de Kepler 452b. Parce que dans nos recherches pour d\u00e9couvrir si nous sommes seuls dans cet univers si vaste et si fascinant, un v\u00e9ritable\u00a0monde\u00a0h\u00e9bergeant de la vie et parmi d'innombrables plan\u00e8tes mortes et inhabitables, nous pouvons enfin avoir un v\u00e9ritable candidat \u00e0 la Terre 2.0. Pour la\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/07\/Kepler-452b.jpg?fit=640%2C425&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/07\/Kepler-452b.jpg?fit=640%2C425&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/07\/Kepler-452b.jpg?fit=640%2C425&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":1613,"url":"https:\/\/www.laterredufutur.com\/accueil\/2-milliards-de-planetes-terre-dans-notre-galaxie\/","url_meta":{"origin":12608,"position":3},"title":"2 milliards de plan\u00e8tes Terre dans notre galaxie","author":"Admin","date":"5 novembre 2013","format":false,"excerpt":"A l'heure o\u00f9 le film Gravity \u2013 qui raconte une exp\u00e9dition \u00e0 bord d'une navette spatiale qui tourne \u00e0 la catastrophe \u2013 fait salle comble et a d\u00e9j\u00e0 propuls\u00e9 plus d'un million de spectateurs fran\u00e7ais dans l'espace, une \u00e9tude estime qu'au moins 2 milliards de plan\u00e8tes de taille terrestre, en\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2013\/11\/exoplanete-type-terre.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":674,"url":"https:\/\/www.laterredufutur.com\/accueil\/kepler-22b-une-nouvelle-terre-decouverte-dans-une-zone-lhabitabler\/","url_meta":{"origin":12608,"position":4},"title":"Kepler 22b, une nouvelle Terre d\u00e9couverte dans une zone \u00abhabitable\u00bb","author":"Admin","date":"6 d\u00e9cembre 2011","format":false,"excerpt":"Des astronomes de la NASA ont annonc\u00e9 lundi 5 d\u00e9cembre avoir d\u00e9couvert une plan\u00e8te semblable \u00e0 la Terre, \u00e0 l'ext\u00e9rieur du syst\u00e8me solaire, dont la taille et la distance qui la s\u00e9pare de son \u00e9toile rend \u00abhabitable\u00bb. En outre, elle se trouve \u00e0 une distance de 600 ann\u00e9es-lumi\u00e8res de notre\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":21044,"url":"https:\/\/www.laterredufutur.com\/accueil\/il-y-a-des-milliards-de-terres-dans-notre-galaxie\/","url_meta":{"origin":12608,"position":5},"title":"Il y a des milliards de Terres dans notre galaxie","author":"Admin","date":"4 juillet 2020","format":false,"excerpt":"Selon de nouvelles recherches, il pourrait y avoir jusqu'\u00e0 six milliards de plan\u00e8tes semblables \u00e0 la Terre en orbite autour d'\u00e9toiles dans notre galaxie. Notre Voie lact\u00e9e compte jusqu'\u00e0 400 milliards d'\u00e9toiles, dont 7% de type G. Cela signifie que moins de six milliards d'\u00e9toiles peuvent avoir des plan\u00e8tes semblables\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/exoplanete-mondes-habitables.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/exoplanete-mondes-habitables.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/exoplanete-mondes-habitables.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/exoplanete-mondes-habitables.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/exoplanete-mondes-habitables.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/12608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=12608"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/12608\/revisions"}],"predecessor-version":[{"id":12610,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/12608\/revisions\/12610"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/12609"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=12608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=12608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=12608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}