{"id":15741,"date":"2017-09-05T20:16:16","date_gmt":"2017-09-05T18:16:16","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=15741"},"modified":"2017-09-05T20:16:16","modified_gmt":"2017-09-05T18:16:16","slug":"eruptions-solaires-en-cours","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/","title":{"rendered":"Eruptions solaires en cours"},"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<div>Par&nbsp;<strong><a class=\"username-coloured\" href=\"http:\/\/www.laterredufutur.com\/html\/phpBB3\/memberlist.php?mode=viewprofile&amp;u=1905\">chasseurd&rsquo;orages37<\/a>&nbsp;.&nbsp;<\/strong>\u00c9ruption solaire mod\u00e9r\u00e9e en cours ( M1 \u00e0 M2 avec radio black out niveau R1 et taux d&rsquo;absorption au-dessus de 2( MHz sur les Am\u00e9riques ).<\/p>\n<p>Mon attention se porte d\u00e9sormais sur le groupe de tache solaire AR 2673. Pourquoi ? Il y a quelques jours, elle pr\u00e9sentait une configuration magn\u00e9tique de type B\u00eata \u00e0 B\u00eata-Gamma. Depuis aujourd&rsquo;hui, une composante Delta tente de prendre forme au centre m\u00eame du groupe. C&rsquo;est ce qui produit actuellement un fort conflit magn\u00e9tique responsable d&rsquo;une hausse de l&rsquo;activit\u00e9 des rayons X. Depuis le d\u00e9but de matin\u00e9e de ce 4 Septembre, les rayons X indiquent une mont\u00e9e progressive de leur intensit\u00e9 avec quelques sursauts d&rsquo;\u00e9ruptions solaires qui atteignent un stade mod\u00e9r\u00e9e, on observe pas d&rsquo;\u00e9ruption solaire impulsive puisque AR 2673 pr\u00e9sente une phase de stockage \u00e9nerg\u00e9tique ( d&rsquo;o\u00f9 le fait que les rayons X progressent progressivement et qu&rsquo;il n&rsquo;y a pas d&rsquo;\u00e9ruption impulsive ).&nbsp;<\/p><\/div>\n<div>&nbsp;<\/div>\n<div><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15742\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/taches-solaires-1\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1.jpg?fit=498%2C944&amp;ssl=1\" data-orig-size=\"498,944\" 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=\"taches-solaires-1\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1.jpg?fit=158%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1.jpg?fit=422%2C800&amp;ssl=1\" class=\"alignnone size-full wp-image-15742\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1.jpg?resize=498%2C944\" alt=\"\" width=\"498\" height=\"944\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1.jpg?w=498&amp;ssl=1 498w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1.jpg?resize=158%2C300&amp;ssl=1 158w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1.jpg?resize=422%2C800&amp;ssl=1 422w\" sizes=\"auto, (max-width: 498px) 100vw, 498px\" \/>&nbsp;<\/div>\n<div>&nbsp;<\/div>\n<div>Comme je l&rsquo;avais estim\u00e9 hier, il y avait une grande probabilit\u00e9 pour qu&rsquo;une \u00e9ruption solaire mod\u00e9r\u00e9e se produise ( M1 \u00e0 M5 ), ce f\u00fbt le cas ce soir avec une \u00e9ruption de classe M1.6. Pendant plusieurs heures, le stockage \u00e9nerg\u00e9tique de la tache solaire est important, le flux de rayons X reste au stade de classe C depuis le matin de ce 4 Septembre avec des sursauts au stade de classe M comme actuellement avec une deuxi\u00e8me \u00e9ruption solaire longue dur\u00e9e qui vient de passer la classe M1. Au vu de la faible mont\u00e9e des rayons X, le stade de M1 \u00e0 M2 ne devrait pas \u00eatre d\u00e9pass\u00e9 pour ce soir, mais le flux devrait rester en classe C pendant encore quelques heures. On distingue un fort taux d&rsquo;absorption sur les Am\u00e9riques de 20 \u00e7 25 MHz et un radio black out de niveau R1 quand les rayons X atteignent le stade M1.&nbsp;<\/div>\n<div>&nbsp;<\/div>\n<div><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15744\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/fux-xray\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?fit=639%2C484&amp;ssl=1\" data-orig-size=\"639,484\" 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=\"fux-xray\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?fit=300%2C227&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?fit=639%2C484&amp;ssl=1\" class=\"alignnone size-full wp-image-15744\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?resize=639%2C484\" alt=\"\" width=\"639\" height=\"484\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?w=639&amp;ssl=1 639w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?resize=80%2C60&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?resize=300%2C227&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?resize=174%2C131&amp;ssl=1 174w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fux-xray.jpg?resize=70%2C53&amp;ssl=1 70w\" sizes=\"auto, (max-width: 639px) 100vw, 639px\" \/><\/div>\n<div><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15745\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/iswacygnetstreamer\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/iSWACygnetStreamer.gif?fit=960%2C600&amp;ssl=1\" data-orig-size=\"960,600\" 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=\"iSWACygnetStreamer\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/iSWACygnetStreamer.gif?fit=300%2C188&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/iSWACygnetStreamer.gif?fit=800%2C500&amp;ssl=1\" class=\"alignnone size-full wp-image-15745\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/iSWACygnetStreamer.gif?resize=960%2C600\" alt=\"\" width=\"960\" height=\"600\"\/><\/div>\n<div>&nbsp;<\/div>\n<div class=\"content\">Depuis maintenant 72 heures, plusieurs \u00e9ruptions solaires mod\u00e9r\u00e9es se produisent sur la surface du soleil et cela tend \u00e0 se renforcer depuis les derni\u00e8res 24 heures avec la naissance d&rsquo;une composante Delta au sein du groupe de taches solaire AR 2673, qui est elle-m\u00eame responsable de la forte activit\u00e9 \u00e9ruptive actuellement en cours, le potentiel de classe X est tr\u00e8s important, une classe X1 \u00e0 X3 ne reste pas improbable. On peut encore observer quelques classes M jusqu&rsquo;\u00e0 M5 voir M8 mais l&rsquo;activit\u00e9 des rayons X reste principalement \u00e0 la classe C du fait de la forte concentration \u00e9nerg\u00e9tique au sein du groupe. D\u00e9j\u00e0 depuis hier, on observ\u00e9 un important stockage \u00e9nerg\u00e9tique au sein du groupe avec une activit\u00e9 des rayons X dominant \u00e0 la classe C. Et entre temps, plusieurs \u00e9ruptions mod\u00e9r\u00e9es se sont produites.<\/div>\n<div>&nbsp;<\/div>\n<div class=\"content\">&nbsp;<img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15746\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/taches-solaires-1-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1-1.jpg?fit=270%2C310&amp;ssl=1\" data-orig-size=\"270,310\" 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=\"taches-solaires-1\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1-1.jpg?fit=261%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1-1.jpg?fit=270%2C310&amp;ssl=1\" class=\"alignnone size-full wp-image-15746\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1-1.jpg?resize=270%2C310\" alt=\"\" width=\"270\" height=\"310\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1-1.jpg?w=270&amp;ssl=1 270w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-1-1.jpg?resize=261%2C300&amp;ssl=1 261w\" sizes=\"auto, (max-width: 270px) 100vw, 270px\" \/><\/p>\n<p>Voici un r\u00e9sum\u00e9 de ces derni\u00e8res 72 heures d&rsquo;il y a 3 jours \u00e0 maintenant :<\/p>\n<p>M1.2<br \/>\nM1.5<br \/>\nM1.7<br \/>\nM5.5<br \/>\nM2.1<br \/>\nM4.2<br \/>\nM3.2<br \/>\nM3.8<\/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>Il se trouve que l&rsquo;\u00e9ruption solaire M5.5 a \u00e9t\u00e9 la plus forte de ces derni\u00e8res 24 heure. Elle a d&rsquo;ailleurs produit une CME assez massive, et avec le positionnement actuelle du groupe responsable de cela, le nuage qui accompagne la CME vient tout droit dans notre direction. La vitesse d&rsquo;\u00e9jection de la CME a \u00e9t\u00e9 estim\u00e9 autour de 1400 km\/s avec une \u00e9mission radio de type II. L&rsquo;indice du flux solaire centim\u00e9trique ( 10.7 cm ) a pr\u00e9sent\u00e9 une forte impulsion lors de l&rsquo;\u00e9ruption, il a \u00e9t\u00e9 estim\u00e9 autour de 1600 SFU. Lors de l&rsquo;\u00e9jection de masse coronal, une forte quantit\u00e9 de particules \u00e9lectroniques instables se sont propag\u00e9es provoquant ainsi une forte augmentation de la densit\u00e9 de protons. Il se trouve que le niveau de temp\u00eate de rayonnement S1 a \u00e9t\u00e9 atteint en milieu-fin de nuit, le flux de protons tente de se stabiliser lin\u00e9airement depuis quelques heures mais le niveau de temp\u00eate de rayonnement mod\u00e9r\u00e9e S2 a \u00e9t\u00e9 atteint depuis ce matin autour de 9h00. Pour le moment, on ne note pas d&rsquo;\u00e9volution pouvant permettre d&rsquo;indiquer s&rsquo;il y a oui ou non une hausse de la densit\u00e9 de protons.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15747\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/taches-solaires-2-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-2-1.jpg?fit=256%2C256&amp;ssl=1\" data-orig-size=\"256,256\" 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=\"taches-solaires-2\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-2-1.jpg?fit=256%2C256&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-2-1.jpg?fit=256%2C256&amp;ssl=1\" class=\"size-full wp-image-15747 aligncenter\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-2-1.jpg?resize=256%2C256\" alt=\"\" width=\"256\" height=\"256\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-2-1.jpg?w=256&amp;ssl=1 256w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-2-1.jpg?resize=144%2C144&amp;ssl=1 144w\" sizes=\"auto, (max-width: 256px) 100vw, 256px\" \/><\/div>\n<div class=\"content\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15748\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/taches-solaires-3\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?fit=640%2C479&amp;ssl=1\" data-orig-size=\"640,479\" 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=\"taches-solaires-3\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?fit=640%2C479&amp;ssl=1\" class=\"alignnone size-full wp-image-15748\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?resize=640%2C479\" alt=\"\" width=\"640\" height=\"479\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?w=640&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?resize=80%2C60&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?resize=174%2C131&amp;ssl=1 174w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-3.jpg?resize=70%2C53&amp;ssl=1 70w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/> <img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15749\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/taches-solaires-4\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-4.jpg?fit=597%2C505&amp;ssl=1\" data-orig-size=\"597,505\" 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=\"taches-solaires-4\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-4.jpg?fit=300%2C254&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-4.jpg?fit=597%2C505&amp;ssl=1\" class=\"alignnone size-full wp-image-15749\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-4.jpg?resize=597%2C505\" alt=\"\" width=\"597\" height=\"505\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-4.jpg?w=597&amp;ssl=1 597w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/taches-solaires-4.jpg?resize=300%2C254&amp;ssl=1 300w\" sizes=\"auto, (max-width: 597px) 100vw, 597px\" \/><\/p>\n<p>Un tr\u00e8s vaste et dense nuage de plasma accompagne la CME qui est en train de venir dans notre direction. L&rsquo;impact de la CME sur notre magn\u00e9tosph\u00e8re serait pr\u00e9vu pour la fin de journ\u00e9e du 6 Septembre et les effets devraient se faire ressentir au minimum pendant 2 jours, donc jusqu&rsquo;\u00e0 8 Septembre avant que le calme revienne ( hormis si nouvelle \u00e9ruption solaire d&rsquo;ici l\u00e0, ce qui est tr\u00e8s probable ). Notre magn\u00e9tosph\u00e8re devrait \u00eatre touch\u00e9e assez durement, la vitesse du vent solaire pourrait montr\u00e9 une forte augmentation \u00e0 partir du 6 Septembre dans la journ\u00e9e, \u00e9tant actuellement \u00e0 un niveau mod\u00e9r\u00e9 pour le moment ( 550-600 km\/s ), il est fort possible que la vitesse atteigne jusqu&rsquo;\u00e0 800 km\/s au moment de l&rsquo;impact. Si l&rsquo;orientation du champ interplan\u00e9taire ( Bz ) s&rsquo;effectue en direction du Sud, le vent solaire charg\u00e9 de particules instables n&rsquo;aura pas de mal \u00e0 s&rsquo;engouffrer. Cela devrait occasionner une augmentation de l&rsquo;activit\u00e9 g\u00e9omagn\u00e9tique entre le 6-7 et 8 Septembre. Sous nos latitudes, il est possible que le seuil de temp\u00eate g\u00e9omagn\u00e9tique atteigne le niveau G1 et G2, il n&rsquo;est pas impossible d&rsquo;atteindre le niveau G3 tr\u00e8s temporairement. Aux hautes latitudes, le niveau G2 \u00e0 G3 est tr\u00e8s certainement possible, une \u00e9volution en niveau G4 n&rsquo;est pas \u00e0 exclure. L&rsquo;activit\u00e9 g\u00e9omagn\u00e9tique devrait ensuite se calmer \u00e0 partir du 8 Septembre s&rsquo;il n&rsquo;y a pas d&rsquo;autres nuages de plasma qui viendront dans notre direction d&rsquo;ici l\u00e0.&nbsp;<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"15750\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/eruptions-solaires-en-cours\/fluxsolaire-cme\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fluxsolaire-cme.jpg?fit=460%2C514&amp;ssl=1\" data-orig-size=\"460,514\" 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=\"fluxsolaire-cme\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fluxsolaire-cme.jpg?fit=268%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fluxsolaire-cme.jpg?fit=460%2C514&amp;ssl=1\" class=\"alignnone size-full wp-image-15750\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fluxsolaire-cme.jpg?resize=460%2C514\" alt=\"\" width=\"460\" height=\"514\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fluxsolaire-cme.jpg?w=460&amp;ssl=1 460w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fluxsolaire-cme.jpg?resize=268%2C300&amp;ssl=1 268w\" sizes=\"auto, (max-width: 460px) 100vw, 460px\" \/><\/div>\n<div id=\"sig81961\" class=\"signature\">K\u00e9vin Fillin ; Analyste, pr\u00e9visionniste et photographe chasseur d&rsquo;orages. Pr\u00e9visionniste activit\u00e9 solaire, \u00e9tudes de la sismologie, volcanologie ainsi que de l&rsquo;astronomie-astrophysique. <a href=\"http:\/\/www.laterredufutur.com\/html\/phpBB3\/viewtopic.php?f=12&amp;t=2758&amp;start=80\">Suivi en cours ICI<\/a><\/div>\n<p class=\"bawpvc-ajax-counter\" data-id=\"15741\">(921)<\/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>Par&nbsp;chasseurd&rsquo;orages37&nbsp;.&nbsp;\u00c9ruption solaire mod\u00e9r\u00e9e en cours ( M1 \u00e0 M2 avec radio black out niveau R1 et taux d&rsquo;absorption au-dessus de&#8230;<\/p>\n","protected":false},"author":1,"featured_media":15750,"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_post_was_ever_published":false,"_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":"Eruptions solaires en cours @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}},"categories":[24],"tags":[1152,5007,374,369],"class_list":["post-15741","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soleil","tag-activite-solaire","tag-cme","tag-eruption","tag-taches-solaires","wpcat-24-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2017\/09\/fluxsolaire-cme.jpg?fit=460%2C514&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-45T","jetpack-related-posts":[{"id":25425,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-soleil-vient-demettre-leruption-solaire-la-plus-puissante-depuis-des-annees\/","url_meta":{"origin":15741,"position":0},"title":"Le soleil vient d&rsquo;\u00e9mettre l&rsquo;\u00e9ruption solaire la plus puissante depuis des ann\u00e9es","author":"Admin","date":"15 d\u00e9cembre 2023","format":false,"excerpt":"Le Soleil vient d'\u00e9mettre une \u00e9ruption d'une intensit\u00e9 exceptionnelle. Le 14 d\u00e9cembre, une r\u00e9gion de taches solaires actives nomm\u00e9e AR 3514 est entr\u00e9e en \u00e9ruption avec une \u00e9ruption solaire de classe X2.8, la cat\u00e9gorie la plus intense dont notre \u00e9toile est capable. Cette \u00e9ruption est la plus puissante que nous\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/12\/eruption-solaire-15-12-2023-2.png?fit=642%2C664&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/12\/eruption-solaire-15-12-2023-2.png?fit=642%2C664&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/12\/eruption-solaire-15-12-2023-2.png?fit=642%2C664&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":27622,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-tache-solaire-geante-a-lorigine-de-la-recente-supertempete-solaire-a-emis-pres-de-1-000-eruptions-et-une-explosion-secrete-classee-x-revele-une-etude-qui-bat-tous-les-records\/","url_meta":{"origin":15741,"position":1},"title":"Une tache solaire g\u00e9ante \u00e0 l&rsquo;origine de la r\u00e9cente \u00ab supertemp\u00eate \u00bb solaire a \u00e9mis pr\u00e8s de 1 000 \u00e9ruptions et une explosion secr\u00e8te class\u00e9e X, r\u00e9v\u00e8le une \u00e9tude qui bat tous les records","author":"Admin","date":"14 janvier 2026","format":false,"excerpt":"Une \u00e9tude r\u00e9cente r\u00e9v\u00e8le que l'\u00e9norme tache solaire qui a d\u00e9clench\u00e9 une temp\u00eate g\u00e9omagn\u00e9tique \u00ab extr\u00eame \u00bb en mai 2024 a provoqu\u00e9 des centaines d'autres \u00e9ruptions solaires dangereuses, dont une \u00e9ruption cach\u00e9e de classe X. Cette \u00e9tude \u00e9tablit un record pour la plus longue observation continue d'une seule r\u00e9gion active\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/01\/tempete-solaire-classe-x-mai-2024.webp?fit=650%2C366&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/01\/tempete-solaire-classe-x-mai-2024.webp?fit=650%2C366&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2026\/01\/tempete-solaire-classe-x-mai-2024.webp?fit=650%2C366&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":22717,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-soleil-vient-de-produire-une-eruption-de-classe-x-la-plus-puissante-depuis-2017\/","url_meta":{"origin":15741,"position":2},"title":"Le Soleil vient de produire une \u00e9ruption de classe X, la plus puissante depuis 2017","author":"Admin","date":"6 juillet 2021","format":false,"excerpt":"Le Soleil semble se r\u00e9veiller de la p\u00e9riode calme de son cycle de 11 ans. Le 3 juillet 2021, \u00e0 14 h 29 UTC (10 h 29 EDT), notre \u00e9toile a produit sa premi\u00e8re \u00e9ruption de classe X du cycle solaire 25 ; c'\u00e9tait l'\u00e9ruption la plus puissante que nous\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/classe-x-soleil-juillet-2021.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/classe-x-soleil-juillet-2021.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/classe-x-soleil-juillet-2021.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/classe-x-soleil-juillet-2021.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2246,"url":"https:\/\/www.laterredufutur.com\/accueil\/nouvelles-eruptions-solaires-et-moyen-pour-sen-prevenir\/","url_meta":{"origin":15741,"position":3},"title":"Nouvelles \u00e9ruptions solaires et moyen pour s&rsquo;en pr\u00e9venir","author":"Admin","date":"30 octobre 2014","format":false,"excerpt":"AR2192, un groupe de taches solaires aussi gros que Jupiter a caus\u00e9 cette semaine pas moins de six \u00e9ruptions majeures de classe X. Des ph\u00e9nom\u00e8nes que les scientifiques observent de pr\u00e8s. A en croire la m\u00e9t\u00e9o solaire, notre \u00e9toile connait cette semaine un pic d\u2019activit\u00e9 notable. Pas moins de six\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/wordpress\/wp-content\/uploads\/2014\/10\/.._photos_soleil-cordes-magnetiques3.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":25914,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-soleil-emet-la-plus-forte-eruption-solaire-du-cycle-25-de-classe-x8-7\/","url_meta":{"origin":15741,"position":4},"title":"Le Soleil \u00e9met la plus forte \u00e9ruption solaire du cycle 25, de classe X8.7","author":"Admin","date":"16 mai 2024","format":false,"excerpt":"L'\u00e9ruption solaire la plus puissante depuis une demi-d\u00e9cennie vient d'\u00eatre produite par le m\u00eame groupe de taches solaires qui a d\u00e9clench\u00e9 des aurores bor\u00e9ales \u00e9blouissantes le week-end dernier. Cependant, il ne faut pas s'attendre \u00e0 des aurores bor\u00e9ales cette fois-ci. Le soleil vient de produire la plus forte \u00e9ruption solaire\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/eruption-solaire-du-14-mai-2024.webp?fit=650%2C365&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/eruption-solaire-du-14-mai-2024.webp?fit=650%2C365&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/05\/eruption-solaire-du-14-mai-2024.webp?fit=650%2C365&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":23275,"url":"https:\/\/www.laterredufutur.com\/accueil\/eruption-solaire-de-classe-x-du-28-octobre-2021\/","url_meta":{"origin":15741,"position":5},"title":"Eruption Solaire de classe X du 28 octobre 2021 (suivi en cours)","author":"Admin","date":"28 octobre 2021","format":false,"excerpt":"Il semble que nous ayons une \u00e9ruption solaire de classe X 1.0 ce 28 octobre 2021. Cette temp\u00eate solaire se dirige vers la Terre et qui devrait arriver vers le 30 ou 31 octobre. L'information est tomb\u00e9e il y a quelques heures. \u00c9RUPTION SOLAIRE MAJEURE DE CLASSE X Les satellites\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/eruption-solaire-classe-x-28-octobre-2021.jpg?fit=1101%2C1072&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/eruption-solaire-classe-x-28-octobre-2021.jpg?fit=1101%2C1072&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/eruption-solaire-classe-x-28-octobre-2021.jpg?fit=1101%2C1072&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/eruption-solaire-classe-x-28-octobre-2021.jpg?fit=1101%2C1072&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/10\/eruption-solaire-classe-x-28-octobre-2021.jpg?fit=1101%2C1072&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15741","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=15741"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15741\/revisions"}],"predecessor-version":[{"id":15751,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/15741\/revisions\/15751"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/15750"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=15741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=15741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=15741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}