{"id":3362,"date":"2015-08-09T07:52:00","date_gmt":"2015-08-09T07:52:00","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=3362"},"modified":"2015-08-15T07:02:59","modified_gmt":"2015-08-15T07:02:59","slug":"ar-2396-une-nouvelle-tache-solaire-geante","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/08\/09\/ar-2396-une-nouvelle-tache-solaire-geante\/","title":{"rendered":"AR 2396, une nouvelle tache solaire g\u00e9ante"},"content":{"rendered":"<p><strong>Si vous poss\u00e9dez une paire de lunettes destin\u00e9e \u00e0 observer les \u00e9clipses, c&#8217;est le moment de les chausser pour admirer AR 2396, une superbe tache solaire.<\/strong><\/p>\n<p>Le 20 mars dernier avait lieu une tr\u00e8s belle <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/21\/les-plus-belles-images-de-leclipse-solaire-du-20-mars\/\" target=\"_blank\">\u00e9clipse de Soleil<\/a>, partielle en France et totale au niveau du cercle polaire. Peut-\u00eatre faites-vous partie des heureux propri\u00e9taires de lunettes filtrantes qui ont pu suivre ce ph\u00e9nom\u00e8ne astronomique sans danger. Vous pouvez les ressortir sans attendre la prochaine \u00e9clipse pour observer une gigantesque tache solaire, AR 2396.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil10.jpg\" rel=\"lightbox[3362]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3364\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil10-450x312.jpg\" alt=\"soleil10\" width=\"450\" height=\"312\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil10-450x312.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil10-1024x710.jpg 1024w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil10.jpg 1298w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Apparue tr\u00e8s discr\u00e8tement sur le bord solaire le 4 ao\u00fbt, la tache AR 2396 n&#8217;a cess\u00e9 de s&#8217;\u00e9tendre, atteignant le 8 ao\u00fbt la bagatelle de 150 000 km d&#8217;une extr\u00e9mit\u00e9 \u00e0 l&#8217;autre, ce qui la rend parfaitement visible sans instrument, en prot\u00e9geant ses yeux bien entendu.<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" frameborder=\"0\" width=\"480\" height=\"270\" src=\"\/\/www.dailymotion.com\/embed\/video\/x2hb4go\" 0=\"allowfullscreen\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n\n<p style=\"text-align: center\"><strong>En vid\u00e9o : de superbes images du Soleil pour f\u00eater les 5 ans du satellite SDO<\/strong><\/p>\n<p><!--more-->Les <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/10\/22\/lenorme-tache-solaire-ar-2192\/\" target=\"_blank\">taches solaires<\/a> (num\u00e9rot\u00e9es dans l\u2019ordre d\u2019apparition par la <a href=\"http:\/\/www.noaa.gov\/\" target=\"_blank\">NOAA<\/a>, <em>National Oceanic and Atmospheric Administration<\/em>, AR signifiant <em>Active Region<\/em>)\u00a0sont des anomalies magn\u00e9tiques moins chaudes que le reste de la surface du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/05\/11\/un-avion-de-ligne-passe-devant-le-soleil-tache\/\" target=\"_blank\">Soleil<\/a>, ce qui les rend plus sombres.\u00a0Ces taches sont \u00e0 l\u2019origine d\u2019\u00e9jection de mati\u00e8re solaire dans l\u2019espace qui se traduit sur Terre par de tr\u00e8s belles <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/06\/29\/des-chauves-souris-sous-les-aurores-boreales\/\" target=\"_blank\">aurores bor\u00e9ales<\/a>.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil11.jpg\" rel=\"lightbox[3362]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-3365\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil11-450x450.jpg\" alt=\"soleil11\" width=\"450\" height=\"450\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil11-450x450.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil11-150x150.jpg 150w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2015\/08\/soleil11.jpg 900w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Si vous ne disposez pas de lunettes filtrantes, il vous est possible de suivre l&#8217;\u00e9volution de cette tache solaire sur la page des satellites solaires\u00a0<a href=\"http:\/\/sohowww.nascom.nasa.gov\/sunspots\/\" target=\"_blank\">SOHO<\/a>\u00a0(<em>SOlar and Heliospheric Observatory<\/em>) ou <a href=\"http:\/\/sdo.gsfc.nasa.gov\/\" target=\"_blank\">SDO<\/a>\u00a0(<em>Solar Dynamics Observatory<\/em>).<\/p>\n<p>Gageons que les <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/14\/lumiere-rouge-les-astronomes\/\" target=\"_blank\">astronomes<\/a> amateurs qui participent aux <a href=\"https:\/\/www.afastronomie.fr\/les-nuits-des-etoiles-2015\" target=\"_blank\">Nuits des \u00e9toiles 2015<\/a> ne manqueront pas de pr\u00e9senter AR 2396 dans leurs t\u00e9lescopes solaires au public venu leur rendre visite !<\/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>Si vous poss\u00e9dez une paire de lunettes destin\u00e9e \u00e0 observer les \u00e9clipses, c&#8217;est le moment de les chausser pour admirer AR 2396, une superbe tache solaire. Le 20 mars dernier avait lieu une tr\u00e8s belle \u00e9clipse de Soleil, partielle en France et totale au niveau du cercle polaire. Peut-\u00eatre faites-vous partie des heureux propri\u00e9taires de &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/08\/09\/ar-2396-une-nouvelle-tache-solaire-geante\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">AR 2396, une nouvelle tache solaire g\u00e9ante<\/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":3364,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[509],"tags":[1200,257,760,97,261],"class_list":["post-3362","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites","tag-ar-2396","tag-noaa","tag-soho","tag-soleil","tag-tache-solaire"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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