{"id":1482,"date":"2017-11-11T17:55:38","date_gmt":"2017-11-11T16:55:38","guid":{"rendered":"http:\/\/art-et-culture-du-monde.fr\/blog\/?p=1482"},"modified":"2017-11-30T14:47:10","modified_gmt":"2017-11-30T13:47:10","slug":"1482","status":"publish","type":"post","link":"https:\/\/art-et-culture-du-monde.fr\/blog\/grand-nord\/1482\/","title":{"rendered":"La Saison des aurores bor\u00e9ales est ouverte !"},"content":{"rendered":"<h2 style=\"text-align: center;\">Festival d&rsquo;aurores bor\u00e9ales sur le Yukon et sur Dawson City (voir photo).<\/h2>\n<p>Un spectacle fabuleux, si vous avez l&rsquo;occasion d&rsquo;aller en voir pour de vrai, allez-y !!!\u00a0<span class=\"_5mfr _47e3\"> Bien s\u00fbr comme les aurores bor\u00e9ales sont li\u00e9es \u00e0 la proximit\u00e9 du p\u00f4le, il est aussi possible d&rsquo;aller en Scandinavie, ou en Russie. Contrairement \u00e0 ce qu&rsquo;on pense, il n&rsquo;est pas n\u00e9cessaire de trop se rapprocher du p\u00f4le. \u00catre au niveau du cercle polaire (66\u00b033&prime;) est tr\u00e8s suffisant. Il faut voir ces rideaux de lumi\u00e8re appara\u00eetre, bouger, onduler.<br \/>\n<\/span><\/p>\n<p>Pour les plus aventureux, le ph\u00e9nom\u00e8ne est tout autant pr\u00e9sent au Sud, on parle alors d&rsquo;aurores australes.<\/p>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" style=\"border: none; overflow: hidden;\" src=\"https:\/\/www.facebook.com\/plugins\/post.php?href=https%3A%2F%2Fwww.facebook.com%2Fcbcyukon%2Fposts%2F1531941273567478&amp;width=500\" width=\"500\" height=\"502\" frameborder=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<h3>Les aurores bor\u00e9ales, comment \u00e7a marche ?<\/h3>\n<p>C&rsquo;est simple (sur le principe), le soleil nous envoi, en plus de la lumi\u00e8re, des particules. Ces particules charg\u00e9es \u00e9lectriquement suivent les lignes du champ magn\u00e9tique terrestre jusqu&rsquo;\u00e0 ce qu&rsquo;elles rencontrent l&rsquo;atmosph\u00e8re. Lors du choc avec les particules solaires (on dit \u00ab\u00a0vent solaire\u00a0\u00bb), les atomes de l&rsquo;air \u00e9mettent de la lumi\u00e8re. On voit donc que si le soleil est peu actif, pas la peine de courir apr\u00e8s les aurores bor\u00e9ales. Ainsi, il est possible de pr\u00e9voir une sorte de \u00ab\u00a0m\u00e9t\u00e9o\u00a0\u00bb des aurores. Certains sites internet proposent d&rsquo;ailleurs ces pr\u00e9visions. Il faut aussi v\u00e9rifier la m\u00e9t\u00e9o terrestre, car s&rsquo;il y a des nuages, \u00e9videmment, aucune chance de voir quoi que ce soit.<\/p>\n<h3>Comment photographier les aurores bor\u00e9ales ?<\/h3>\n<p>D&rsquo;abord bien pr\u00e9parer en amont, choisir un lieu, une p\u00e9riode favorable. Apr\u00e8s il faudra croiser les doigts pour la m\u00e9t\u00e9o, un nuage malicieux pouvant toujours se pr\u00e9senter \u00e0 la derni\u00e8re minute.<\/p>\n<p>Ensuite, se couvrir ! En hiver dans le Nord, c&rsquo;est b\u00eate \u00e0 dire mais il fait froid ! Ne jamais blaguer avec le froid, un orteil gel\u00e9, \u00e7a n&rsquo;arrive pas qu&rsquo;aux autres.<\/p>\n<p>Pour le mat\u00e9riel, un appareil photo dont on peut r\u00e9gler le temps de pose, un tr\u00e9pied et, essentiel, plusieurs batteries. Dans mon cas, par -40\u00b0C mes batteries tiennent 15 minutes maximum.<\/p>\n<p>Enfin, si vous partez seul, toujours avertir quelqu&rsquo;un de vos plan \u00e0 proximit\u00e9 de votre lieu d&rsquo;observation. Mourir de froid n&rsquo;est pas qu&rsquo;une expression sous ces latitudes. En plus des v\u00eatements, il peut d&rsquo;ailleurs \u00eatre avantageux de pr\u00e9voir des \u00ab\u00a0chaufferettes\u00a0\u00bb gliss\u00e9es dans les gants et les chaussures. N&rsquo;oubliez pas aussi qu&rsquo;\u00e0 ces temp\u00e9ratures, il ne faut pas toucher le m\u00e9tal \u00e0 main nues sous peine de br\u00fblures.<\/p>\n<p>Avec tout cela, vous \u00eates parti pour de grands moments d&rsquo;\u00e9merveillement sans risque.<\/p>\n<p>A bient\u00f4t.<\/p>\n<p>Eric<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aurores bor\u00e9ales<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_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}},"categories":[2,6,5],"tags":[],"class_list":["post-1482","post","type-post","status-publish","format-standard","hentry","category-grand-nord","category-surprenant","category-yukon"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>La Saison des aurores bor\u00e9ales est ouverte ! - La Nature d&#039;Eric<\/title>\n<meta name=\"description\" content=\"Les aurores bor\u00e9ales dans le Nord-Ouest du Canada (Yukon, Territoires du Nord-Ouest) et en Alaska. 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