{"id":61368,"date":"2024-03-27T16:33:52","date_gmt":"2024-03-27T16:33:52","guid":{"rendered":"https:\/\/www.africa-press.net\/tchad\/politique\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller"},"modified":"2024-03-27T16:49:27","modified_gmt":"2024-03-27T16:49:27","slug":"hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller","title":{"rendered":"Hubble parvient \u00e0 capter le moment o\u00f9 une \u00e9toile commence \u00e0 briller"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Tchad. <\/strong><\/span>FS Tau est un syste\u0300me multi-e\u0301toiles compose\u0301 de toutes jeunes e\u0301toiles, a\u0302ge\u0301es d&rsquo;environ 2,8 millions d&rsquo;anne\u0301es, qui n&rsquo;ont pas encore de\u0301bute\u0301 la fusion nucle\u0301aire au sein de leur c\u0153ur et ne sont que sous le joug de la force gravitationnelle qui les force a\u0300 se contracter.<\/p>\n<p>Nombre de ces astres sont masque\u0301s par le gaz et la poussie\u0300re qui baignent la pe\u0301pinie\u0300re stellaire d&rsquo;ou\u0300 elles ont surgi, mais le te\u0301lescope Hubble a re\u0301ussi a\u0300 observer ce syste\u0300me situe\u0301 a\u0300 450 anne\u0301es-lumie\u0300re dans la constellation du Taureau.<\/p>\n<p><b> Des e\u0301toiles variables<\/b><\/p>\n<p>Sur cette image du te\u0301lescope spatial, l&rsquo;on voit FS Tau A (l\u2019e\u0301toile brillante au centre du cliche\u0301) et FS tau B (un peu plus haut sur la droite) d\u2019ou\u0300 e\u0301mane un jet de lumie\u0300re bleue. FS Tau B est entoure\u0301e d\u2019un disque protoplane\u0301taire, qui finira par donner naissance a\u0300 des plane\u0300tes et a\u0300 d\u2019autres corps.<\/p>\n<p>Une e\u0301paisse bande de poussie\u0300re, vue par la tranche, se\u0301pare ce que les astronomes pensent e\u0302tre les surfaces e\u0301claire\u0301es de ce disque. La jeune e\u0301toile est e\u0301galement la source d\u2019un jet de matie\u0300re (en bleu) qui semble dans ce cas asyme\u0301trique: sans doute que la matie\u0300re est expulse\u0301e a\u0300 un rythme diffe\u0301rent ou que l\u2019environnement de l\u2019e\u0301toile contraint certaines directions.<\/p>\n<p><b>Un astre similaire au Soleil dans plusieurs millions d&rsquo;anne\u0301es<\/b><\/p>\n<p>Les e\u0301toiles comme FS Tau B sont nomme\u0301es variables T Tauri, leur luminosite\u0301 variant sensiblement avec le temps. Dans quelques dizaines de millions d\u2019anne\u0301es, celle-ci deviendra un astre similaire au Soleil. FS Tau A est elle un syste\u0300me binaire compose\u0301e de deux e\u0301toiles T Tauri, en orbite l\u2019une autour de l\u2019autre.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <a href=\"https:\/\/www.africa-press.net\/tchad\">Tchad<\/a>, suivez <a href=\"https:\/\/www.africa-press.net\/\">Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Tchad. FS Tau est un syste\u0300me multi-e\u0301toiles compose\u0301 de toutes jeunes e\u0301toiles, a\u0302ge\u0301es d&rsquo;environ 2,8 millions d&rsquo;anne\u0301es, qui n&rsquo;ont pas encore de\u0301bute\u0301 la fusion nucle\u0301aire au sein de leur c\u0153ur et ne sont que sous le joug de la force gravitationnelle qui les force a\u0300 se contracter. Nombre de ces astres sont masque\u0301s [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":61367,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[37,292,29],"class_list":["post-61368","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-tchad","tag-tchad"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Hubble parvient \u00e0 capter le moment o\u00f9 une \u00e9toile commence \u00e0 briller - tchad<\/title>\n<meta name=\"description\" content=\"FS Tau est un syste\u0300me multi-e\u0301toiles compose\u0301 de toutes jeunes e\u0301toiles, a\u0302ge\u0301es d&#039;environ 2,8 millions d&#039;anne\u0301es, qui ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hubble parvient \u00e0 capter le moment o\u00f9 une \u00e9toile commence \u00e0 briller\" \/>\n<meta property=\"og:description\" content=\"FS Tau est un syste\u0300me multi-e\u0301toiles compose\u0301 de toutes jeunes e\u0301toiles, a\u0302ge\u0301es d&#039;environ 2,8 millions d&#039;anne\u0301es, qui ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller\" \/>\n<meta property=\"og:site_name\" content=\"tchad\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-27T16:33:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-27T16:49:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2024\/03\/sm_1711545293.886074.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Hubble parvient \u00e0 capter le moment o\u00f9 une \u00e9toile commence \u00e0 briller\",\"datePublished\":\"2024-03-27T16:33:52+00:00\",\"dateModified\":\"2024-03-27T16:49:27+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller\"},\"wordCount\":350,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/tchad\/sites\/41\/2024\/03\/sm_1711545293.886074.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Tchad\",\"Tchad\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller\",\"url\":\"https:\/\/www.africa-press.net\/tchad\/toutes-les-actualites\/hubble-parvient-a-capter-le-moment-ou-une-etoile-commence-a-briller\",\"name\":\"Hubble parvient \u00e0 capter le moment o\u00f9 une \u00e9toile commence \u00e0 briller - 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