{"id":4838,"date":"2009-04-15T20:31:09","date_gmt":"2009-04-15T18:31:09","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil1\/?p=4838"},"modified":"2015-04-13T20:32:11","modified_gmt":"2015-04-13T18:32:11","slug":"minimum-solaire-selon-la-nasa","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/minimum-solaire-selon-la-nasa\/","title":{"rendered":"Minimum Solaire selon la Nasa"},"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<p align=\"justify\"><span style=\"font-size: small;\">Notre \u00e9toile conna\u00eet une p\u00e9riode de calme in\u00e9gal\u00e9e depuis pr\u00e8s d\u2019un si\u00e8cle, affirment des physiciens de la Nasa.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">Le signe de cette activit\u00e9 minimale est l\u2019absence de taches sur le Soleil. En 2008 aucune tache n\u2019a \u00e9t\u00e9 observ\u00e9e pendant 266 jours, un record in\u00e9gal\u00e9 depuis 50 ans. Il faut remonter \u00e0 l\u2019ann\u00e9e 1913, avec 311 jours sans une tache solaire, pour trouver un minimum solaire encore plus\u2026 minimal, commentent Dean Pesnell (Goddard Space Flight Center) et ses coll\u00e8gues de la Nasa.<\/span><\/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 align=\"justify\"><span style=\"font-size: small;\">De fait l\u2019activit\u00e9 du Soleil varie en fonction de cycles qui durent en moyenne 11 ans, marqu\u00e9s par des phases d\u2019activit\u00e9s intenses (maximums) et d\u2019autres tr\u00e8s calmes (minimums). L\u2019une des manifestations de cette activit\u00e9 sont les taches sombres \u2013li\u00e9es aux champs magn\u00e9tiques solaires : plus il y a de taches visibles \u00e0 la surface de l\u2019\u00e9toile, plus son activit\u00e9 est importante.<\/span><\/p>\n<p align=\"justify\"><span style=\"font-size: small;\">A l\u2019heure actuelle le Soleil se trouve dans une phase calme de son cycle. Pour autant les chercheurs n\u2019avaient jamais observ\u00e9 un aussi grand calme. Le rayonnement solaire a diminu\u00e9 de 0,02% dans la lumi\u00e8re visible, de 6% dans certaines longueurs d\u2019ondes. Avec 78 jours sans taches sur 90 \u00e9coul\u00e9s, l\u2019ann\u00e9e 2009 s\u2019annonce elle aussi en service minimum.<\/span><\/p>\n<p align=\"justify\">source : <a href=\"http:\/\/tempsreel.nouvelobs.com\/\">http:\/\/tempsreel.nouvelobs.com<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"4838\">(513)<\/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>Notre \u00e9toile conna\u00eet une p\u00e9riode de calme in\u00e9gal\u00e9e depuis pr\u00e8s d\u2019un si\u00e8cle, affirment des physiciens de la Nasa. Le signe&#8230;<\/p>\n","protected":false},"author":1,"featured_media":4839,"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_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":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[24],"tags":[1152,1242,1258,1367,37],"class_list":["post-4838","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soleil","tag-activite-solaire","tag-cycle-solaire","tag-faible","tag-soho","tag-soleil","wpcat-24-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/04\/soho.gif?fit=180%2C180&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-1g2","jetpack-related-posts":[{"id":18593,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-soleil-est-plus-calme-que-la-normale-mais-pas-de-panique\/","url_meta":{"origin":4838,"position":0},"title":"Le soleil est plus calme que la normale, mais pas de panique !","author":"Admin","date":"13 mars 2019","format":false,"excerpt":"Certains craignent que nous nous dirigions vers un autre petit \u00e2ge glaciaire, mais les scientifiques disent que c'est peu probable. Le soleil est calme\u2026 tr\u00e8s calme. En f\u00e9vrier, pour la premi\u00e8re fois depuis ao\u00fbt 2008, le soleil a pass\u00e9 un mois entier sans taches solaires. Les taches solaires sont des\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\/2019\/03\/soleil-1.jpg?fit=780%2C439&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/soleil-1.jpg?fit=780%2C439&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/soleil-1.jpg?fit=780%2C439&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/03\/soleil-1.jpg?fit=780%2C439&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1224,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-maximum-solaire-approche-dans-un-calme-extraordinaire\/","url_meta":{"origin":4838,"position":1},"title":"Le Maximum solaire approche dans un calme extraordinaire","author":"Admin","date":"13 janvier 2013","format":false,"excerpt":"Les \u00e9tudes scientifiques r\u00e9v\u00e8lent une certaine confusion sur cette activit\u00e9 de notre \u00e9toile. En effet, le maximum du cycle solaire N\u00b024 actuel est attendu pour cette ann\u00e9e. Ce maximum solaire reste tr\u00e8s faible dans un calme inhabituel. Les t\u00e2ches solaires actuelles sont num\u00e9rot\u00e9es alors que la majorit\u00e9 d'entre elles restent\u00a0insignifiantes.\u2026","rel":"","context":"Dans &quot;Soleil&quot;","block_context":{"text":"Soleil","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/soleil\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":4801,"url":"https:\/\/www.laterredufutur.com\/accueil\/le-cycle-solaire-toujours-aussi-bas\/","url_meta":{"origin":4838,"position":2},"title":"le Cycle solaire toujours aussi bas","author":"Admin","date":"13 mars 2009","format":false,"excerpt":"L'activit\u00e9 solaire, en d\u00e9pit des pr\u00e9visions, continue \u00e0 se maintenir extr\u00eamement basse,\u00a0sa dilatation\u00a0est au\u00a0minimum\u00a0et d\u00e9finir un fait\u00a0exceptionnel est maintenant un euphemisme. Le mois de F\u00e9vrier a\u00a0fini avec une moyenne journali\u00e8re de taches solaires \u00e0 1.4. Le\u00a0r\u00e9sultat du mois de f\u00e9vrier qui s'est termin\u00e9 en de\u00e7a du mois de janvier. Les\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\/2015\/04\/mars2009.jpg?fit=450%2C322&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":20315,"url":"https:\/\/www.laterredufutur.com\/accueil\/cest-officiel-nous-sommes-dans-un-profond-minimum-solaire\/","url_meta":{"origin":4838,"position":3},"title":"C&rsquo;est officiel: nous sommes dans un \u00abprofond\u00bb minimum solaire","author":"Admin","date":"20 d\u00e9cembre 2019","format":false,"excerpt":"Le physicien solaire, le Dr Tony Phillips, \u00e9crit par mail ce qui suit : \"Le minimum solaire est officiellement \u00abprofond\u00bb. 2019 vient de battre un record de l'\u00e8re spatiale comptabilisant des jours sans taches solaires. De plus, un panel international de scientifiques dirig\u00e9 par la NOAA et la NASA pr\u00e9dit\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\/2019\/12\/sun-12-16-19-SDO_1024_HMIIC.jpg?fit=720%2C720&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/12\/sun-12-16-19-SDO_1024_HMIIC.jpg?fit=720%2C720&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/12\/sun-12-16-19-SDO_1024_HMIIC.jpg?fit=720%2C720&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/12\/sun-12-16-19-SDO_1024_HMIIC.jpg?fit=720%2C720&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4500,"url":"https:\/\/www.laterredufutur.com\/accueil\/ou-sont-passees-les-taches-solaires\/","url_meta":{"origin":4838,"position":4},"title":"Ou sont pass\u00e9es les taches solaires ?","author":"Admin","date":"14 juillet 2008","format":false,"excerpt":"Depuis d\u00e9but 2008, date officielle du nouveau cycle solaire not\u00e9 num\u00e9ro 24. Il est aussi pr\u00e9sent par son absence. Except\u00e9 le vent solaire qui s'est\u00a0bri\u00e8vement accru d'un trou coronal, il n'y a presque aucune activit\u00e9 solaire significative. \u00a0\u00a9NASA Le soleil reste tr\u00e8s calme. Il est normal que notre soleil ait\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\/spaw\/images\/may_08_1.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/spaw\/images\/may_08_1.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/spaw\/images\/may_08_1.png?resize=525%2C300 1.5x"},"classes":[]},{"id":4712,"url":"https:\/\/www.laterredufutur.com\/accueil\/cycle-solaire-24-ou-minimum-de-dalton\/","url_meta":{"origin":4838,"position":5},"title":"Cycle solaire 24 ou minimum de Dalton","author":"Admin","date":"2 janvier 2009","format":false,"excerpt":"Vers un minimum de Dalton, nous avions vu certains points dans cet article. Depuis maintenant 1 an, le cycle solaire N\u00b024 a d\u00e9but\u00e9, il est toujours aussi pr\u00e9sent par son absence et son manque de t\u00e2ches solaires. Le d\u00e9but du cycle solaire 24 semble\u00a0s'\u00eatre mat\u00e9rialis\u00e9\u00a0puis a\u00a0abruptement disparu. La tache 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\/spaw\/images\/cycl3x.gif?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/spaw\/images\/cycl3x.gif?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/spaw\/images\/cycl3x.gif?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/4838","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=4838"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/4838\/revisions"}],"predecessor-version":[{"id":4840,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/4838\/revisions\/4840"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/4839"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=4838"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=4838"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=4838"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}