{"id":166,"date":"2017-08-04T12:23:01","date_gmt":"2017-08-04T10:23:01","guid":{"rendered":"http:\/\/astroriom.net\/wp1\/?p=166"},"modified":"2023-11-01T19:27:49","modified_gmt":"2023-11-01T18:27:49","slug":"comment-regarder-le-soleil-sans-se-bruler-les-yeux","status":"publish","type":"post","link":"https:\/\/astroriom.net\/v2\/?p=166","title":{"rendered":"Notre \u00e9toile le soleil"},"content":{"rendered":"\n<p><span style=\"color: #ff0000;\">Qu\u2019est-ce qu\u2019une \u00e9toile<\/span>&nbsp;:<\/p>\n\n\n\n<p>Une \u00e9toile est une sph\u00e8re massive et lumineuse de plasma li\u00e9e par sa propre gravit\u00e9 dont le diam\u00e8tre et la densit\u00e9 sont tels que la r\u00e9gion centrale, le c\u0153ur, atteint la temp\u00e9rature n\u00e9cessaire \u00e0 l&rsquo;amor\u00e7age de r\u00e9actions de fusion nucl\u00e9aire, c&rsquo;est-\u00e0-dire de l&rsquo;ordre de plusieurs millions de degr\u00e9s. Ces r\u00e9actions thermonucl\u00e9aires lib\u00e8rent de l\u2019\u00e9nergie lumineuse qui s&rsquo;oppose \u00e0 la contraction de l&rsquo;\u00e9toile sous sa propre gravit\u00e9.<\/p>\n\n\n\n<p><span style=\"color: #ff0000;\">A quoi servent les \u00e9toiles<\/span>&nbsp;:<\/p>\n\n\n\n<p>Les \u00e9toiles servent \u00e0 concevoir les atomes les plus complexes \u00e0 partir des atomes les plus simples, comme ceux de l\u2019hydrog\u00e8ne et de l\u2019h\u00e9lium pr\u00e9sents d\u00e8s les premiers instants de l\u2019univers .<\/p>\n\n\n\n<p>Au centre du soleil, dans son noyau port\u00e9 \u00e0 une temp\u00e9rature de 15 millions de degr\u00e9s, le coeur des atomes d\u2019hydrog\u00e8ne est agit\u00e9 \u00e0 des vitesses telles qu\u2019ils fusionnent entre eux pour former des atomes d\u2019h\u00e9lium qui eux-m\u00eames formeront des atomes de carbone etc&#8230;<\/p>\n\n\n\n<p>Les \u00e9toiles plus massives que le soleil iront jusqu\u2019\u00e0 fabriquer le fer.<\/p>\n\n\n\n<p>Nous sommes donc tous les enfants des \u00e9toiles.<\/p>\n\n\n\n<p><b>VUE EN COUPE DU SOLEIL\u00a0:<\/b><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"770\" src=\"http:\/\/astroriom.net\/v2\/wp-content\/uploads\/2023\/11\/coupe_soleil-1024x770.png\" alt=\"\" class=\"wp-image-1145\" srcset=\"https:\/\/astroriom.net\/v2\/wp-content\/uploads\/2023\/11\/coupe_soleil-1024x770.png 1024w, https:\/\/astroriom.net\/v2\/wp-content\/uploads\/2023\/11\/coupe_soleil-300x225.png 300w, https:\/\/astroriom.net\/v2\/wp-content\/uploads\/2023\/11\/coupe_soleil-768x577.png 768w, https:\/\/astroriom.net\/v2\/wp-content\/uploads\/2023\/11\/coupe_soleil-1536x1154.png 1536w, https:\/\/astroriom.net\/v2\/wp-content\/uploads\/2023\/11\/coupe_soleil-1080x812.png 1080w, https:\/\/astroriom.net\/v2\/wp-content\/uploads\/2023\/11\/coupe_soleil.png 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Qu\u2019est-ce qu\u2019une \u00e9toile&nbsp;: Une \u00e9toile est une sph\u00e8re massive et lumineuse de plasma li\u00e9e par sa propre gravit\u00e9 dont le diam\u00e8tre et la densit\u00e9 sont tels que la r\u00e9gion centrale, le c\u0153ur, atteint la temp\u00e9rature n\u00e9cessaire \u00e0 l&rsquo;amor\u00e7age de r\u00e9actions de fusion nucl\u00e9aire, c&rsquo;est-\u00e0-dire de l&rsquo;ordre de plusieurs millions de degr\u00e9s. Ces r\u00e9actions thermonucl\u00e9aires lib\u00e8rent &hellip; <a href=\"https:\/\/astroriom.net\/v2\/?p=166\" class=\"more-link\">Lire la suite de <span class=\"screen-reader-text\">Notre \u00e9toile le soleil<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-166","post","type-post","status-publish","format-standard","hentry","category-soleil","no-featured-image"],"_links":{"self":[{"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/posts\/166","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=166"}],"version-history":[{"count":3,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/posts\/166\/revisions"}],"predecessor-version":[{"id":1147,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=\/wp\/v2\/posts\/166\/revisions\/1147"}],"wp:attachment":[{"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astroriom.net\/v2\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}