{"id":134547,"date":"2023-06-21T14:11:06","date_gmt":"2023-06-21T14:11:06","guid":{"rendered":"https:\/\/sftarticles.wpenginepowered.com\/es\/?p=294673"},"modified":"2025-06-12T11:14:31","modified_gmt":"2025-06-12T10:14:31","slug":"superstar-betelgeuse-peut-devenir-une-lune-2-0","status":"publish","type":"post","link":"https:\/\/cms-articles.softonic.io\/fr\/superstar-betelgeuse-peut-devenir-une-lune-2-0\/","title":{"rendered":"B\u00e9telgeuse se pr\u00e9pare \u00e0 \u00e9voluer vers quelque chose de jamais vu avant"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">L&#8217;une des \u00e9toiles les plus brillantes du ciel se comporte \u00e9trangement, passant de brillante \u00e0 faible deux fois plus vite que d&#8217;habitude. Les scientifiques pensent qu&#8217;il va \u00e9clater tr\u00e8s bient\u00f4t.<\/p>\n\n\n<div class=\"sc-card-program\">\r\n  <div class=\"sc-card-program__body\">\r\n    <div class=\"sc-card-program__row clearfix\">\r\n      <div class=\"sc-card-program__col-logo\">\r\n        <img decoding=\"async\" class=\"sc-card-program__img\" src=\"https:\/\/images.sftcdn.net\/images\/t_app-icon-s\/p\/2cddcc48-a4d6-11e6-88af-00163ec9f5fa\/3678680588\/nasa-app-logo\" alt=\"Application NASA\" width=\"100px\" height=\"100px\">\r\n      <\/div>\r\n      <div class=\"sc-card-program__col-title\">\r\n        <span class=\"sc-card-program__title\">Application NASA<\/span>\r\n        <a class=\"sc-card-program__button sc-card-program-internal\" href=\"https:\/\/nasa-app.fr.softonic.com\/android\" target=\"_self\" rel=\"noopener noreferrer\">Tel\u00e8charg\u00e8r<\/a>\r\n      <\/div>\r\n      <div class=\"sc-card-program__col-rating\">\r\n        \r\n      <\/div>\r\n    <\/div>\r\n    <div class=\"sc-card-program__row\">\r\n      <span class=\"sc-card-program__description\"><\/span>\r\n    <\/div>\r\n    <div class=\"sc-card-program__row\">\r\n      <img decoding=\"async\" class=\"sc-card-program__bigpic\" src=\"\">\r\n    <\/div>\r\n    <a class=\"sc-card-program__link track-link sc-card-program-internal\" href=\"https:\/\/nasa-app.fr.softonic.com\/android\" target=\"_self\" rel=\"noopener noreferrer\"><\/a>\r\n  <\/div>\r\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">On sait depuis longtemps que B\u00e9telgeuse, la superg\u00e9ante rouge la plus proche de la Terre, passe du plus brillant au plus sombre en cycles de 400 jours.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mais de fin 2019 \u00e0 d\u00e9but 2020, il a souffert de ce que les astrophysiciens ont appel\u00e9 &#8220;le grand assombrissement&#8221;, alors qu&#8217;un nuage de poussi\u00e8re obscurcissait notre vision de l&#8217;\u00e9toile.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S&#8217;allume d\u00e9sormais \u00e0 150% de sa luminosit\u00e9 normale, alternant entre plus lumineux et plus sombre \u00e0 des intervalles de 200jours, deux fois plus rapidement que d&#8217;habitude. C&#8217;est actuellement la septi\u00e8me \u00e9toile la plus brillante du ciel nocturne, trois positions au-dessus de sa part.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-block-embed-Youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"\u00bfQu\u00e9 pasar\u00eda si Betelgeuse explotara ahora mismo?\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/_BBT6gHcJo0?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">B\u00e9telgeuse explosera au cours des 10 prochaines.000 ans<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Dans le ciel de l&#8217;h\u00e9misph\u00e8re sud, on peut le voir briller de mille feux au coucher du soleil, sur l&#8217;\u00e9paule de la constellation d&#8217;Orion. Comme les jours raccourcissent dans l&#8217;h\u00e9misph\u00e8re nord, il sera visible l\u00e0 aussi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Et l&#8217;une des choses les plus int\u00e9ressantes \u00e0 propos de B\u00e9telgeuse est que nous assistons aux derni\u00e8res \u00e9tapes de l&#8217;\u00e9volution d&#8217;une grande \u00e9toile presque en temps r\u00e9el, quelque chose que nous n&#8217;avons jamais pu \u00e9tudier en profondeur auparavant.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&#8217;observation de leur comportement permet de mieux comprendre le comportement des superg\u00e9antes rouges avant l&#8217;explosion de la supernova.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">Is betelgeuse finally going supernova.!!<a href=\"https:\/\/twitter.com\/hashtag\/NASA?src=hash&amp;ref_src=twsrc%5Etfw\">#NASA<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/blackhole?src=hash&amp;ref_src=twsrc%5Etfw\">#blackhole<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/universe?src=hash&amp;ref_src=twsrc%5Etfw\">#universe<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/space?src=hash&amp;ref_src=twsrc%5Etfw\">#space<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/Black_holes?src=hash&amp;ref_src=twsrc%5Etfw\">#Black_holes<\/a> <a href=\"https:\/\/twitter.com\/hashtag\/Earths?src=hash&amp;ref_src=twsrc%5Etfw\">#Earths<\/a> <a href=\"https:\/\/t.co\/rQ4TZdFQ84\">pic.twitter.com\/rQ4TZdFQ84<\/a><\/p>&mdash; GaryanEng (@garyaneng) <a href=\"https:\/\/twitter.com\/garyaneng\/status\/1668978941774659585?ref_src=twsrc%5Etfw\">June 14, 2023<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Ce sera comme avoir deux lunes dans le ciel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Lorsqu&#8217;il explosera enfin, il pourrait, au cours d&#8217;une semaine, devenir si brillant qu&#8217;il serait visible le jour et projetterait des ombres la nuit. C&#8217;est-\u00e0-dire qu&#8217;il pourrait donner presque autant de lumi\u00e8re que la Lune la nuit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans l&#8217;\u00c9gypte ancienne, il existe des preuves de l&#8217;explosion d&#8217;une \u00e9toile sous la forme d&#8217;une supernova. Les \u00c9gyptiens ont d\u00e9crit l&#8217;apparition d&#8217;un &#8220;deuxi\u00e8me soleil&#8221; dans le ciel. Pour eux c&#8217;\u00e9tait un \u00e9v\u00e9nement sacr\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Au fait, y a-t-il un danger pour nous?Les supernovae produisent des particules de haute \u00e9nergie appel\u00e9es rayons cosmiques, qui peuvent traverser le bouclier du champ magn\u00e9tique terrestre. Heureusement cette \u00e9toile est trop loin de nous pour \u00eatre dangereuse.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"es\" dir=\"ltr\">OMG, predijeron que la estrella Betelgeuse va a ser supernova EN LAS PROXIMAS DECADAS, un evento que no se ve desde la tierra hace m\u00e1s de 400 a\u00f1os.<br>Se estima a que va a ser un punto brillante observable hasta de d\u00eda y a &quot;ojo&quot;, + &#8211; del tama\u00f1o de la luna <a href=\"https:\/\/t.co\/ST3TWrvqEN\">pic.twitter.com\/ST3TWrvqEN<\/a><\/p>&mdash; ? Matt ?\u300e Over Heaven \u300f (@Matt_KLPS) <a href=\"https:\/\/twitter.com\/Matt_KLPS\/status\/1669486171850694657?ref_src=twsrc%5Etfw\">June 15, 2023<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n<div class=\"sc-card-program\">\r\n  <div class=\"sc-card-program__body\">\r\n    <div class=\"sc-card-program__row clearfix\">\r\n      <div class=\"sc-card-program__col-logo\">\r\n        <img decoding=\"async\" class=\"sc-card-program__img\" src=\"https:\/\/images.sftcdn.net\/images\/t_app-icon-s\/p\/2cddcc48-a4d6-11e6-88af-00163ec9f5fa\/3678680588\/nasa-app-logo\" alt=\"Application NASA\" width=\"100px\" height=\"100px\">\r\n      <\/div>\r\n      <div class=\"sc-card-program__col-title\">\r\n        <span class=\"sc-card-program__title\">Application NASA<\/span>\r\n        <a class=\"sc-card-program__button sc-card-program-internal\" href=\"https:\/\/nasa-app.fr.softonic.com\/android\" target=\"_self\" rel=\"noopener noreferrer\">Tel\u00e8charg\u00e8r<\/a>\r\n      <\/div>\r\n      <div class=\"sc-card-program__col-rating\">\r\n        \r\n      <\/div>\r\n    <\/div>\r\n    <div class=\"sc-card-program__row\">\r\n      <span class=\"sc-card-program__description\"><\/span>\r\n    <\/div>\r\n    <div class=\"sc-card-program__row\">\r\n      <img decoding=\"async\" class=\"sc-card-program__bigpic\" src=\"\">\r\n    <\/div>\r\n    <a class=\"sc-card-program__link track-link sc-card-program-internal\" href=\"https:\/\/nasa-app.fr.softonic.com\/android\" target=\"_self\" rel=\"noopener noreferrer\"><\/a>\r\n  <\/div>\r\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Certains des liens ajout\u00e9s dans l&#8217;article font partie de campagnes d&#8217;affiliation et peuvent repr\u00e9senter des avantages pour Softonic.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Apr\u00e8s la &quot;grande assombrissement&quot;, l&#039;\u00e9toile superg\u00e9ante rouge la plus proche de la Terre pulse deux fois plus vite que d&#039;habitude et s&#039;allume comme si c&#039;\u00e9tait la Lune.<\/p>\n","protected":false},"author":9265,"featured_media":134548,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","wpcf-pageviews":0},"categories":[16761],"tags":[],"usertag":[],"vertical":[],"content-category":[],"class_list":["post-134547","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/posts\/134547","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/users\/9265"}],"replies":[{"embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/comments?post=134547"}],"version-history":[{"count":1,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/posts\/134547\/revisions"}],"predecessor-version":[{"id":162014,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/posts\/134547\/revisions\/162014"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/media\/134548"}],"wp:attachment":[{"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/media?parent=134547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/categories?post=134547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/tags?post=134547"},{"taxonomy":"usertag","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/usertag?post=134547"},{"taxonomy":"vertical","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/vertical?post=134547"},{"taxonomy":"content-category","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/fr\/wp-json\/wp\/v2\/content-category?post=134547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}