{"id":4364,"date":"2015-12-15T05:50:43","date_gmt":"2015-12-15T05:50:43","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=4364"},"modified":"2015-12-21T05:49:21","modified_gmt":"2015-12-21T05:49:21","slug":"la-vallee-de-pololu-a-hawaii-un-paradis-vert-sous-la-lune","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/15\/la-vallee-de-pololu-a-hawaii-un-paradis-vert-sous-la-lune\/","title":{"rendered":"La vall\u00e9e de Pololu \u00e0 Hawaii, un paradis vert sous la Lune"},"content":{"rendered":"

Au nord de l’\u00eele d’Hawaii, dont le sommet est occup\u00e9 par des t\u00e9lescopes, la vall\u00e9e de Pololu r\u00e9v\u00e8le sa luxuriante v\u00e9g\u00e9tation sous la lumi\u00e8re de la Lune.<\/strong><\/p>\n

Quand on parle de l’\u00eele d’Hawaii aux astronomes<\/a>, ils pensent aux grands t\u00e9lescopes qui ont \u00e9t\u00e9 install\u00e9s au sommet du Mauna Kea<\/a>, ce volcan endormi qui culmine \u00e0 4205 m\u00e8tres d’altitude.<\/p>\n

Regroup\u00e9es au sein de l’Observatoire du Mauna Kea<\/a>, une dizaine de coupoles accueillent les instruments de diff\u00e9rents pays. Les plus embl\u00e9matiques sont les t\u00e9lescopes jumeaux Keck<\/a> et le t\u00e9lescope Canada-France-Hawaii<\/a>. Ils b\u00e9n\u00e9ficient du meilleur ciel de l’h\u00e9misph\u00e8re nord, loin de toute pollution lumineuse<\/a>.<\/p>\n

\"rogelio1\"<\/a><\/p>\n

L’\u00eele d’Hawaii est une terre de contrastes : alors qu’on rencontre au sommet du Mauna Kea une zone aride au climat polaire (il peut y neiger), les r\u00e9gions qui bordent l’oc\u00e9an Pacifique nord connaissent un climat tropical humide qui permet le d\u00e9veloppement d’une v\u00e9g\u00e9tation exub\u00e9rante.<\/p>\n

L’astrophotographe\u00a0Rogelio Bernal Andreo, dont on peut appr\u00e9cier les magnifiques images sur son site Deep Sky Colors<\/a><\/em>, a choisi de ne pas monter au sommet du Mauna Kea mais de mettre en valeur l’une des vall\u00e9es de l’\u00eele, celle de Pololu.<\/p>\n

Situ\u00e9e au nord de l’\u00eele, cette vall\u00e9e est envahie par une\u00a0for\u00eat tropicale humide tellement dense qu’elle semble vierge de toute occupation humaine. Cette exub\u00e9rance v\u00e9g\u00e9tale \u00e9voque les for\u00eats de l’\u00e9poque pr\u00e9historique, au point qu’elle a servi de d\u00e9cor \u00e0 certaines sc\u00e8nes du film Le Monde perdu : Jurassic Park<\/em>\u00a0r\u00e9alis\u00e9 en 1997 par\u00a0Steven Spielberg.<\/p>\n

Surplombant la vall\u00e9e et l’oc\u00e9an Pacifique nord, Rogelio Bernal Andreo a choisi d’immortaliser ce paysage une nuit o\u00f9 la Lune <\/a>n’\u00e9tait pas trop envahissante : assez brillante pour \u00e9clairer la v\u00e9g\u00e9tation sans pour autant masquer les \u00e9toiles<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Au nord de l’\u00eele d’Hawaii, dont le sommet est occup\u00e9 par des t\u00e9lescopes, la vall\u00e9e de Pololu r\u00e9v\u00e8le sa luxuriante v\u00e9g\u00e9tation sous la lumi\u00e8re de la Lune. Quand on parle de l’\u00eele d’Hawaii aux astronomes, ils pensent aux grands t\u00e9lescopes qui ont \u00e9t\u00e9 install\u00e9s au sommet du Mauna Kea, ce volcan endormi qui culmine \u00e0 … Continuer la lecture de La vall\u00e9e de Pololu \u00e0 Hawaii, un paradis vert sous la Lune<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":4365,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[83],"tags":[1383,89,11,1382,82,830,425,1380,1381,1379],"class_list":["post-4364","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-la-lune","tag-deep-sky-colors","tag-etoile","tag-hawaii","tag-le-monde-perdu-jurassic-park","tag-lune","tag-mauna-kea","tag-ocean-pacifique","tag-rogelio-bernal-andreo","tag-steven-spielberg","tag-vallee-de-pololu"],"yoast_head":"\nLa vall\u00e9e de Pololu \u00e0 Hawaii, un paradis vert 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