{"id":14899,"date":"2021-11-05T16:54:22","date_gmt":"2021-11-05T16:54:22","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=14899"},"modified":"2023-05-01T09:40:07","modified_gmt":"2023-05-01T09:40:07","slug":"la-plus-grande-tempete-solaire-a-frappe-la-terre-en-1859","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/11\/05\/la-plus-grande-tempete-solaire-a-frappe-la-terre-en-1859\/","title":{"rendered":"La plus grande temp\u00eate solaire a frapp\u00e9 la Terre en 1859"},"content":{"rendered":"<p><strong>La fin de l&#8217;\u00e9t\u00e9 1859 a \u00e9t\u00e9 marqu\u00e9e par une s\u00e9rie d&#8217;\u00e9ruptions sur le Soleil qui ont provoqu\u00e9 la plus grande temp\u00eate solaire connue \u00e0 ce jour.\u00a0<\/strong><\/p>\n<h5>Le Soleil, un faux calme :<\/h5>\n<p>Le <a href=\"https:\/\/www.futura-sciences.com\/sciences\/actualites\/soleil-soleil-debute-son-25e-cycle-activite-annonce-nasa-quest-ce-cela-signifie-78864\/\" target=\"_blank\" rel=\"noopener\">nouveau cycle solaire<\/a>, qui a d\u00e9but\u00e9 fin 2019, devrait conna\u00eetre son maximum apr\u00e8s le milieu de 2024, comme l&#8217;explique <a href=\"https:\/\/www.futura-sciences.com\/sciences\/actualites\/soleil-maximum-activite-solaire-arrivera-plus-tot-prevu-quest-ce-ca-change-105023\/\" target=\"_blank\" rel=\"noopener\">Futura<\/a>. Il s&#8217;accompagne d&#8217;un accroissement significatif du nombre de taches et d&#8217;\u00e9ruptions solaires. Ce sont ces derni\u00e8res qui lib\u00e8rent dans l&#8217;espace de grandes quantit\u00e9s de particules \u00e9nerg\u00e9tiques. Leur arriv\u00e9e sur Terre est \u00e0 l&#8217;origine des <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2023\/03\/01\/en-images-somptueuses-aurores-boreales-au-canada\/\" target=\"_blank\" rel=\"noopener\">aurores polaires<\/a> :<\/p>\n<figure id=\"attachment_12030\" aria-describedby=\"caption-attachment-12030\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/05\/aurore.jpg\" rel=\"lightbox[14899]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-12030\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/05\/aurore-450x270.jpg\" alt=\"\" width=\"450\" height=\"270\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/05\/aurore-450x270.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/05\/aurore-1024x614.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/05\/aurore-768x461.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2020\/05\/aurore.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-12030\" class=\"wp-caption-text\">Aurores bor\u00e9ales au-dessus de la rivi\u00e8re des Esclaves. \u00a9 John McKinnon<\/figcaption><\/figure>\n<p>Jusqu&#8217;\u00e0 maintenant ce flot d&#8217;\u00e9nergie n&#8217;a pas provoqu\u00e9 d&#8217;incident majeur. Mais ce calme relatif ne doit pas nous faire oublier que le <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2022\/10\/26\/au-rajasthan-on-a-vu-le-soleil-se-coucher-partiellement-eclipse\/\" target=\"_blank\" rel=\"noopener\">Soleil<\/a> peut parfois entrer dans de violentes col\u00e8res. La plus impressionnante s&#8217;est produite au XIXe si\u00e8cle.<\/p>\n<p><!--more--><\/p>\n<h5>Une \u00e9ruption en direct :<\/h5>\n<p>Le 1er septembre 1859, Richard Carrington, un astronome amateur anglais, profite du beau temps pour observer le Soleil avec son t\u00e9lescope. Il remarque imm\u00e9diatement un \u00e9norme groupe de taches sombres \u00e0 sa surface. Soudain, deux flash aveuglants apparaissent pendant quelques minutes dans ces taches. Carrington est le premier observateur \u00e0 assister en direct \u00e0 une \u00e9ruption solaire :<\/p>\n<figure id=\"attachment_14900\" aria-describedby=\"caption-attachment-14900\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/10\/sun.jpg\" rel=\"lightbox[14899]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-14900\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/10\/sun-450x271.jpg\" alt=\"\" width=\"450\" height=\"271\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/10\/sun-450x271.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/10\/sun-1024x616.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/10\/sun-768x462.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2021\/10\/sun.jpg 1500w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-14900\" class=\"wp-caption-text\">Une \u00e9ruption solaire (flash lumineux) photographi\u00e9e par la sonde SOHO. \u00a9 NASA<\/figcaption><\/figure>\n<p>La nuit suivante, les communications t\u00e9l\u00e9graphiques du monde entier subissent de nombreux dysfonctionnements. Les op\u00e9rateurs font \u00e9tat d&#8217;arcs \u00e9lectriques et d&#8217;\u00e9tincelles jaillissant des machines t\u00e9l\u00e9graphiques. Un peu partout, le ciel s&#8217;embrase.<\/p>\n<h5>Aurores bor\u00e9ales et australes :<\/h5>\n<p>De puissantes aurores color\u00e9es illuminent la nuit aux quatre coins de la plan\u00e8te. Dans les Cara\u00efbes, les observateurs parlent d&#8217;un ciel en feu. Aux USA, on rapporte que les oiseaux se mettent \u00e0 chanter, croyant que le jour va se lever. Voici ce qu&#8217;on peut lire dans le <em>Baltimore American and Commercial Advertiser<\/em> du 3 septembre 1859 : <em><strong>Ceux qui sont sortis tard jeudi soir ont eu l&#8217;occasion d&#8217;assister \u00e0 un autre magnifique spectacle de lumi\u00e8res aurorales. Le ph\u00e9nom\u00e8ne \u00e9tait tr\u00e8s similaire \u00e0 celui de dimanche soir, bien que la lumi\u00e8re ait parfois \u00e9t\u00e9 plus brillante et les teintes plus vari\u00e9es et plus belles. La lumi\u00e8re \u00e9tait plus forte que celle de la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/07\/24\/la-pleine-lune-de-juillet-se-leve-depuis-la-chapelle-de-chevennes\/\" target=\"_blank\" rel=\"noopener\">Pleine Lune<\/a>, avec une douceur et une d\u00e9licatesse indescriptibles<\/strong><\/em>.<\/p>\n<figure id=\"attachment_8278\" aria-describedby=\"caption-attachment-8278\" style=\"width: 450px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/09\/aurores3.jpg\" rel=\"lightbox[14899]\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-8278\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/09\/aurores3-450x300.jpg\" alt=\"\" width=\"450\" height=\"300\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/09\/aurores3-450x300.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/09\/aurores3-768x512.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/09\/aurores3-1024x683.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2017\/09\/aurores3.jpg 1350w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><figcaption id=\"caption-attachment-8278\" class=\"wp-caption-text\">Une aurore bor\u00e9ale se d\u00e9ploie devant l&#8217;objectif d&#8217;un photographe. \u00a9 The Aurora Chasers<\/figcaption><\/figure>\n<p>Si le journal parle de deux nuits avec des aurores, c&#8217;est parce qu&#8217;une premi\u00e8re temp\u00eate solaire a eu lieu le 28 ao\u00fbt. Richard Carrington ne l&#8217;a pas vue, mais elle a affaibli le champ magn\u00e9tique terrestre, ouvrant le passage au flux de particules \u00e9nerg\u00e9tiques de la seconde \u00e9ruption solaire. L&#8217;analyse de <a href=\"https:\/\/www.futura-sciences.com\/planete\/dossiers\/climatologie-analyse-isotopique-eau-cle-comprendre-climat-2076\/page\/4\/\" target=\"_blank\" rel=\"noopener\">carottages glaciaires<\/a> a permis de d\u00e9terminer que la temp\u00eate solaire de 1859, appel\u00e9e aussi l&#8217;<strong>\u00e9v\u00e9nement de Carrington<\/strong>, a \u00e9t\u00e9 la plus importante de ces 500 derni\u00e8res ann\u00e9es. On n&#8217;ose imaginer quel serait l&#8217;impact d&#8217;une temp\u00eate similaire aujourd&#8217;hui sur les r\u00e9seaux \u00e9lectriques, les communications par satellite et les syst\u00e8mes GPS&#8230;<\/p>\n<h5>Vous pourriez aimer :<\/h5>\n<ul>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/11\/25\/carbondale-deux-eclipses-totales-de-soleil-7-ans\/\" target=\"_blank\" rel=\"noopener\">Carbondale : deux \u00e9clipses totales de Soleil en sept ans !<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2017\/09\/05\/soleil-noir-lyceens-photographient-ombre-lunaire\/\" target=\"_blank\" rel=\"noopener\">Soleil Noir : des lyc\u00e9ens photographient l&#8217;ombre lunaire<\/a><\/li>\n<li><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/07\/11\/un-pilote-de-ligne-filme-la-danse-des-aurores-boreales\/\" target=\"_blank\" rel=\"noopener\">Un pilote de ligne filme la danse des aurores bor\u00e9ales<\/a><\/li>\n<\/ul>\n<p>Suivez l\u2019actualit\u00e9 astronomique et d\u00e9couvrez mes images du ciel en vous abonnant \u00e0 Cielmania sur\u00a0<a href=\"https:\/\/www.facebook.com\/cielmania\/\" target=\"_blank\" rel=\"noopener noreferrer\">Facebook<\/a>\u00a0ou\u00a0<a href=\"https:\/\/twitter.com\/cielmania\" target=\"_blank\" rel=\"noopener noreferrer\">Twitter<\/a>.<\/p>\n<!-- AddThis Advanced Settings generic via filter on the_content --><!-- AddThis Share Buttons generic via filter on the_content -->","protected":false},"excerpt":{"rendered":"<p>La fin de l&#8217;\u00e9t\u00e9 1859 a \u00e9t\u00e9 marqu\u00e9e par une s\u00e9rie d&#8217;\u00e9ruptions sur le Soleil qui ont provoqu\u00e9 la plus grande temp\u00eate solaire connue \u00e0 ce jour.\u00a0 Le Soleil, un faux calme : Le nouveau cycle solaire, qui a d\u00e9but\u00e9 fin 2019, devrait conna\u00eetre son maximum apr\u00e8s le milieu de 2024, comme l&#8217;explique Futura. Il &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2021\/11\/05\/la-plus-grande-tempete-solaire-a-frappe-la-terre-en-1859\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">La plus grande temp\u00eate solaire a frapp\u00e9 la Terre en 1859<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><!-- AddThis Advanced Settings generic via filter on get_the_excerpt --><!-- AddThis Share Buttons generic via filter on get_the_excerpt --><\/p>\n","protected":false},"author":8,"featured_media":3621,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[86],"tags":[392,3120,261,485],"class_list":["post-14899","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soleil-et-planetes","tag-eruption-solaire","tag-evenement-de-carrington","tag-tache-solaire","tag-tempete-solaire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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