{"id":5910,"date":"2016-06-10T05:02:13","date_gmt":"2016-06-10T05:02:13","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=5910"},"modified":"2016-06-19T15:45:07","modified_gmt":"2016-06-19T15:45:07","slug":"aurores-australes-lhorizon-nouvelle-zelande","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/10\/aurores-australes-lhorizon-nouvelle-zelande\/","title":{"rendered":"Des aurores australes sur l&#8217;horizon en Nouvelle-Z\u00e9lande"},"content":{"rendered":"<p><strong>Moins souvent photographi\u00e9es que les aurores bor\u00e9ales, les aurores australes viennent parfois illuminer le ciel de l&#8217;h\u00e9misph\u00e8re sud.<\/strong><\/p>\n<p>Les aurores australes et bor\u00e9ales proviennent de l&#8217;excitation des atomes d&#8217;oxyg\u00e8ne et d&#8217;azote pr\u00e9sents dans l&#8217;atmosph\u00e8re terrestre lorsque le vent solaire charg\u00e9 en particules \u00e9nerg\u00e9tiques vient balayer notre plan\u00e8te.<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/player.vimeo.com\/video\/127443936\" width=\"640\" height=\"360\" frameborder=\"0\" 0=\"webkitallowfullscreen\" 1=\"mozallowfullscreen\" 2=\"allowfullscreen&gt;&lt;\/iframe\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n\n<p>La plupart des photographies d&#8217;aurores polaires montrent des aurores bor\u00e9ales : il est en effet plus facile pour les photographes de se rendre \u00e0 proximit\u00e9 du p\u00f4le Nord, que ce soit en Islande comme le fran\u00e7ais<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/05\/17\/en-video-les-aurores-islandaises-de-stephane-vetter\/\" target=\"_blank\"> St\u00e9phane Vetter<\/a>, en Alaska comme le\u00a0cor\u00e9en<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/03\/19\/en-video-la-danse-des-aurores-boreales-sur-lalaska\/\" target=\"_blank\"> Sangku Kim<\/a> ou encore en Norv\u00e8ge comme l&#8217;espagnol\u00a0<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/02\/17\/en-video-un-parapentiste-danse-avec-les-aurores-boreales\/\" target=\"_blank\">Horacio Llorens<\/a>.<\/p>\n<p><a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/aurore2.jpg\" rel=\"lightbox[5910]\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-5912\" src=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/aurore2-450x253.jpg\" alt=\"aurore2\" width=\"450\" height=\"253\" srcset=\"https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/aurore2-450x253.jpg 450w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/aurore2-768x432.jpg 768w, https:\/\/blogs.futura-sciences.com\/feldmann\/wp-content\/uploads\/sites\/9\/2016\/06\/aurore2.jpg 920w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/a><\/p>\n<p>Mais les aurores polaires se d\u00e9veloppent \u00e9galement au-dessus du p\u00f4le Sud, m\u00eame si les observateurs sont moins nombreux \u00e0 les signaler. Les chercheurs en hivernage \u00e0 la station scientifique franco-italienne de <a href=\"http:\/\/www.futura-sciences.com\/magazines\/espace\/infos\/actu\/d\/astronomie-image-rare-aurore-australe-dessus-concordia-40244\/\" target=\"_blank\">Concordia <\/a>sur le Plateau antarctique admirent r\u00e9guli\u00e8rement ces magnifiques draperies c\u00e9lestes qui deviennent parfois visibles en Australie et en Nouvelle-Z\u00e9lande.<!--more--><\/p>\n<p>On peut admirer une aurore australe \u00e0 l&#8217;horizon sur cette image r\u00e9alis\u00e9e en Nouvelle-Z\u00e9lande le 6 juin par l&#8217;astrophotographe<a href=\"https:\/\/twitter.com\/traceoflight\" target=\"_blank\"> Taichi Nakamura<\/a>. Dans le ciel\u00a0on remarque \u00e9galement de gauche \u00e0 droite les Nuages de Magellan (deux galaxies naines en orbite autour de la<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/04\/19\/escalade-nocturne-voie-lactee-dans-le-tyrol\/\" target=\"_blank\"> Voie lact\u00e9e<\/a>) ainsi que Canopus\u00a0(<em>\u03b1 Carinae<\/em>), l&#8217;\u00e9toile la plus brillante de la constellation australe de la Car\u00e8ne (magnitude -0,72) et la deuxi\u00e8me plus brillante \u00e9toile du ciel apr\u00e8s <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/04\/11\/sirius-brille-au-dessus-du-monastere-grec-de-giromeri\/\" target=\"_blank\">Sirius <\/a>(si l&#8217;on ne tient pas compte du <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/08\/15\/dans-la-mer-le-soleil-est-encore-plus-beau\/\" target=\"_blank\">Soleil<\/a>).<\/p>\n<p>Rappelons que la Terre n&#8217;est pas la seule \u00e0 offrir le spectacle des aurores polaires. La sonde Maven en a enregistr\u00e9 sur <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/05\/27\/la-sonde-maven-enregistre-des-aurores-polaires-sur-mars\/\" target=\"_blank\">Mars<\/a>, la sonde Cassini sur <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/06\/06\/des-aurores-illuminent-aussi-les-poles-de-saturne\/\" target=\"_blank\">Saturne <\/a>et il y a quelques mois des astronomes ont annonc\u00e9 avoir d\u00e9tect\u00e9 une aurore polaire sur une <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/08\/08\/une-aurore-polaire-observee-sur-une-naine-brune\/\" target=\"_blank\">naine brune<\/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>Moins souvent photographi\u00e9es que les aurores bor\u00e9ales, les aurores australes viennent parfois illuminer le ciel de l&#8217;h\u00e9misph\u00e8re sud. Les aurores australes et bor\u00e9ales proviennent de l&#8217;excitation des atomes d&#8217;oxyg\u00e8ne et d&#8217;azote pr\u00e9sents dans l&#8217;atmosph\u00e8re terrestre lorsque le vent solaire charg\u00e9 en particules \u00e9nerg\u00e9tiques vient balayer notre plan\u00e8te. La plupart des photographies d&#8217;aurores polaires montrent des &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/06\/10\/aurores-australes-lhorizon-nouvelle-zelande\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">Des aurores australes sur l&#8217;horizon en Nouvelle-Z\u00e9lande<\/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":5911,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[85],"tags":[1693,1422,1695,1698,797,1696,1697,1694],"class_list":["post-5910","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-meteores","tag-aurore-australe","tag-canopus","tag-constellation-de-la-carene","tag-galaxie-naine","tag-grand-nuage-de-magellan","tag-nouvelle-zelande","tag-petit-nuage-de-magellan","tag-taichi-nakamura"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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