{"id":16107,"date":"2017-12-13T20:00:18","date_gmt":"2017-12-13T19:00:18","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=16107"},"modified":"2017-12-13T19:16:44","modified_gmt":"2017-12-13T18:16:44","slug":"une-nouvelle-etoile-polaire-dans-cinq-ans","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/une-nouvelle-etoile-polaire-dans-cinq-ans\/","title":{"rendered":"Une nouvelle \u00e9toile polaire dans cinq ans ?"},"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>En 2022, la fusion de deux astres cr\u00e9era un nouveau point scintillant dans la nuit, aussi gros que l&rsquo;\u00e9toile polaire. C&rsquo;est en tout cas ce que pr\u00e9dit un astronome am\u00e9ricain.<\/p>\n<p>Situ\u00e9es \u00e0 environ 1 800 ann\u00e9es-lumi\u00e8re de la Terre, deux \u00e9toiles semblent tourner de plus en plus pr\u00e8s l&rsquo;une de l&rsquo;autre. Aujourd&rsquo;hui et de notre point de vue, chacune d&rsquo;entre elles \u00e9clipse l&rsquo;autre toutes les onze heures. Le duo, nomm\u00e9 KIC 9832227, est dans le viseur des t\u00e9lescopes depuis quinze ans semble m\u00eame s&rsquo;occulter \u00e0 un rythme de plus en plus soutenu. Et d&rsquo;apr\u00e8s les calculs de Larry Molnar, astronome aupr\u00e8s du Calvin College, dans le Michigan, la danse cosmique devrait s&rsquo;achever par la fusion des astres, en 2022. L&rsquo;\u00e9v\u00e9nement s&rsquo;annonce si puissant qu&rsquo;il devrait offrir un nouveau scintillement dans notre ciel nocturne, aussi \u00e9clatant que l&rsquo;\u00e9toile polaire, et ce, durant pr\u00e8s d&rsquo;un an. En effet, cette explosion pourrait \u00e9mettre 10 000 fois plus de lumi\u00e8re que ce que ces \u00e9toiles g\u00e9n\u00e8rent actuellement.<\/p>\n<p>\u00ab Les cieux se transformeront de mani\u00e8re spectaculaire et n&rsquo;importe qui pourra observer le ph\u00e9nom\u00e8ne, pr\u00e9voyait le chercheur en janvier dernier lors d&rsquo;une r\u00e9union de l&rsquo;American Astronomical Society. Nul besoin d&rsquo;un t\u00e9lescope pour me dire en 2023 si mes pr\u00e9visions \u00e9taient fausses ou correctes. \u00bb D&rsquo;apr\u00e8s lui, des explosions de ce type ont lieu environ une fois tous les dix ans dans notre galaxie.<\/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>Ci-dessous, la n\u00e9buleuse du crabe est le vestige de l&rsquo;explosion d&rsquo;une supernova il y a pr\u00e8s de 1 000 ans. Cr\u00e9dit : NASA, ESA, J.Hester<\/p>\n<p>&nbsp;<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"16109\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/une-nouvelle-etoile-polaire-dans-cinq-ans\/nebuleuse-du-crabe\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/nebuleuse-du-crabe.jpg?fit=1280%2C1024&amp;ssl=1\" data-orig-size=\"1280,1024\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"nebuleuse du crabe\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/nebuleuse-du-crabe.jpg?fit=800%2C640&amp;ssl=1\" class=\"alignnone size-full wp-image-16109\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/nebuleuse-du-crabe.jpg?resize=1280%2C1024\" alt=\"\" width=\"1280\" height=\"1024\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/nebuleuse-du-crabe.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/nebuleuse-du-crabe.jpg?resize=300%2C240&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/nebuleuse-du-crabe.jpg?resize=768%2C614&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/nebuleuse-du-crabe.jpg?resize=800%2C640&amp;ssl=1 800w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>\u00ab Il s&rsquo;agit de la toute premi\u00e8re pr\u00e9vision d&rsquo;une explosion, avait ajout\u00e9 Larry Molnar. Pour l&rsquo;heure, nous ne savons pas si elle est correcte ou non, mais c&rsquo;est en tout cas la premi\u00e8re fois que nous sommes en mesure de faire de telles pr\u00e9dictions \u00bb. Rendez-vous dans cinq ans.<\/p>\n<p>Sources :&nbsp;<a href=\"http:\/\/www.nationalgeographic.fr\/espace\/2017\/12\/les-rendez-vous-celestes-ne-pas-manquer-en-decembre\">National Geographic<\/a>&nbsp;|&nbsp;<a href=\"https:\/\/calvin.edu\/news\/archive\/astronomy-prof-student-predict-explosion-that-will-change-the-night-sky\">Calvin News<\/a>&nbsp;\/&nbsp;<a href=\"https:\/\/www.meteomedia.com\/nouvelles\/articles\/une-nouvelle-etoile-dans-le-ciel-\/90533\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.meteomedia.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"16107\">(451)<\/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>En 2022, la fusion de deux astres cr\u00e9era un nouveau point scintillant dans la nuit, aussi gros que l&rsquo;\u00e9toile polaire&#8230;.<\/p>\n","protected":false},"author":1,"featured_media":16109,"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_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":"Une nouvelle \u00e9toile polaire dans cinq ans ? @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},"jetpack_post_was_ever_published":false},"categories":[22],"tags":[6567,5797,125,6568,2659,878],"class_list":["post-16107","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-espace","tag-etoile-polaire","tag-explosions","tag-galaxie","tag-larry-molnar","tag-phenomene","tag-telescope","wpcat-22-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/12\/nebuleuse-du-crabe.jpg?fit=1280%2C1024&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-4bN","jetpack-related-posts":[{"id":19752,"url":"https:\/\/www.laterredufutur.com\/accueil\/deux-etoiles-vont-entrer-en-collision-en-2022-et-seront-visibles-de-la-terre\/","url_meta":{"origin":16107,"position":0},"title":"Deux \u00e9toiles vont entrer en collision en 2022 et seront visibles de la Terre","author":"Admin","date":"29 octobre 2019","format":false,"excerpt":"Dans moins de cinq ans, nous pourrions bien assister \u00e0 l'apparition d'une nouvelle \u00ab \u00e9toile \u00bb dans les cieux nocturnes. Ce joyau cosmique devrait scintiller sur l'aile nord de la constellation du Cygne durant une bonne partie de l'ann\u00e9e. Pour la premi\u00e8re fois de l'histoire, des astronomes pr\u00e9disent l'explosion d'un\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\/10\/constellation-du-cygne.jpg?fit=1000%2C717&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/constellation-du-cygne.jpg?fit=1000%2C717&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/constellation-du-cygne.jpg?fit=1000%2C717&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/10\/constellation-du-cygne.jpg?fit=1000%2C717&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":14569,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-ciel-pourrait-changer-a-jamais-en-2022\/","url_meta":{"origin":16107,"position":1},"title":"Le ciel pourrait changer \u00e0 jamais en 2022","author":"Admin","date":"28 janvier 2017","format":false,"excerpt":"Le professeur Larry Molnar de l\u2019universit\u00e9 de Calvin, ses \u00e9l\u00e8ves, mais \u00e9galement Karen Kinemuchi de l\u2019observatoire Point Apache et Henry Kobulnicky de l\u2019universit\u00e9 du Wyoming r\u00e9v\u00e8lent un audacieux pronostic ; l\u2019explosion de l\u2019\u00e9toile binaire KIC 9832227 pourrait bien changer la face du ciel et tout le monde en sera t\u00e9moin.\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\/2017\/01\/supernova.jpg?fit=768%2C768&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/01\/supernova.jpg?fit=768%2C768&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/01\/supernova.jpg?fit=768%2C768&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/01\/supernova.jpg?fit=768%2C768&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":6415,"url":"https:\/\/www.laterredufutur.com\/accueil\/il-y-a-70-000-ans-la-terre-avait-deux-soleils\/","url_meta":{"origin":16107,"position":2},"title":"Il y a 70 000 ans, la Terre avait deux soleils","author":"Admin","date":"15 mai 2015","format":false,"excerpt":"VU SUR... SCIENCE ET VIE. Une naine rouge \u00e9mettant peu de lumi\u00e8re, rep\u00e9rable sur les t\u00e9lescopes depuis 70 ans, vient tout juste d'\u00eatre analys\u00e9e. Et fait \u00e9tonnant, la petite \u00e9toile a brill\u00e9 au c\u00f4t\u00e9 du soleil il y a 70.000 ans... comme un deuxi\u00e8me soleil. \"Nos anc\u00eatres ont pu 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\/05\/Star-Wars-Tatooine-Sunset.jpg?fit=1047%2C600&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/Star-Wars-Tatooine-Sunset.jpg?fit=1047%2C600&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/Star-Wars-Tatooine-Sunset.jpg?fit=1047%2C600&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/05\/Star-Wars-Tatooine-Sunset.jpg?fit=1047%2C600&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2691,"url":"https:\/\/www.laterredufutur.com\/accueil\/quand-hubble-laisse-sa-place\/","url_meta":{"origin":16107,"position":3},"title":"Quand Hubble laisse sa place","author":"Admin","date":"9 f\u00e9vrier 2005","format":false,"excerpt":"Devant la fin annonc\u00e9e du T\u00e9l\u00e9scope Hubble, et au del\u00e0 du budget consid\u00e9rable qu'il faudrait pour le maintenir (plus d'un milliard de$), nous allons voir que le prochain t\u00e9lescope est beaucoup plus ambitieux, voyez ici... Le t\u00e9lescope spatial Hubble (HST) est le plus grand t\u00e9lescope optique jamais mis sur orbite.\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":2477,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-etoile-est-passee-aux-confins-de-notre-systeme-solaire-il-y-a-70-000-ans\/","url_meta":{"origin":16107,"position":4},"title":"Une \u00e9toile est pass\u00e9e aux confins de notre syst\u00e8me solaire il y a 70 000 ans","author":"Admin","date":"22 f\u00e9vrier 2015","format":false,"excerpt":"D'un point de vue astronomique, elle n'est pas pass\u00e9e loin. Une \u00e9toile est pass\u00e9e aux confins de notre syst\u00e8me solaire il y a 70 000 ans. Il s'agit de la plus proche rencontre connue \u00e0 ce jour avec une autre \u00e9toile, selon une \u00e9quipe internationale d'astronomes. L'astre de faible masse,\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\/02\/.._spaw_images_457711.jpg?fit=220%2C220&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7325,"url":"https:\/\/www.laterredufutur.com\/accueil\/kepler-186f-la-planete-soeur-de-la-terre\/","url_meta":{"origin":16107,"position":5},"title":"Kepler 186f, la plan\u00e8te soeur de la Terre","author":"Admin","date":"13 juin 2015","format":false,"excerpt":"An avril 2014, l\u2019annonce par la NASA, tel un tsunami, a fait le tour du monde en quelques minutes, et son onde de choc a fait fr\u00e9mir la Galaxie enti\u00e8re\u2026, l\u2019\u00e9quipe internationale de Elisa Quintana, utilisant le satellite am\u00e9ricain Kepler, a d\u00e9couvert, dans la constellation du Cygne1, une \u00ab plan\u00e8te\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\/06\/Kepler-186f.jpg?fit=640%2C360&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/Kepler-186f.jpg?fit=640%2C360&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/06\/Kepler-186f.jpg?fit=640%2C360&ssl=1&resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16107","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=16107"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16107\/revisions"}],"predecessor-version":[{"id":16110,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/16107\/revisions\/16110"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/16109"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=16107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=16107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=16107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}