{"id":415,"date":"2014-05-10T06:43:36","date_gmt":"2014-05-10T06:43:36","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=415"},"modified":"2014-05-16T05:44:39","modified_gmt":"2014-05-16T05:44:39","slug":"415","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/10\/415\/","title":{"rendered":"Contrail"},"content":{"rendered":"

Vous avez d\u00e9j\u00e0 remarqu\u00e9 que les avions de ligne sont tr\u00e8s souvent accompagn\u00e9s de traces blanches \u00e0 l’arri\u00e8re.<\/p>\n

\"lune4\"<\/a><\/p>\n

Ce sont des tra\u00een\u00e9es de condensation de la vapeur d’eau issue des gaz de combustion, appel\u00e9es aussi contrail<\/em> (pour condensation trail<\/em>). Pour observer ces tra\u00een\u00e9es il est n\u00e9cessaire que l’avion vole \u00e0 tr\u00e8s haute altitude dans un environnement tr\u00e8s froid et tr\u00e8s humide.<\/p>\n

Avec le d\u00e9veloppement du trafic a\u00e9rien, ces tra\u00een\u00e9es sont devenues une source suppl\u00e9mentaire d’inqui\u00e9tude pour les astronomes qui observent une baisse progressive de la transparence du ciel.<\/p>\n

Cette image a \u00e9t\u00e9 r\u00e9alis\u00e9e hier en fin d’apr\u00e8s-midi, deux jours apr\u00e8s le Premier Quartier de Lune, avec un bo\u00eetier Finepix HS20 et son zoom r\u00e9gl\u00e9 sur une focale de 720 mm.<\/p>\n","protected":false},"excerpt":{"rendered":"

Vous avez d\u00e9j\u00e0 remarqu\u00e9 que les avions de ligne sont tr\u00e8s souvent accompagn\u00e9s de traces blanches \u00e0 l’arri\u00e8re. Ce sont des tra\u00een\u00e9es de condensation de la vapeur d’eau issue des gaz de combustion, appel\u00e9es aussi contrail (pour condensation trail). Pour observer ces tra\u00een\u00e9es il est n\u00e9cessaire que l’avion vole \u00e0 tr\u00e8s haute altitude dans un … Continuer la lecture de Contrail<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":8,"featured_media":416,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[83],"tags":[94,120,122,82,121,124,123],"class_list":["post-415","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-la-lune","tag-astronome","tag-avion","tag-contrail","tag-lune","tag-premier-quartier","tag-trafic-aerien","tag-vapeur-deau"],"yoast_head":"\ncontrail<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/10\/415\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"contrail\" \/>\n<meta property=\"og:description\" content=\"Vous avez d\u00e9j\u00e0 remarqu\u00e9 que les avions de ligne sont tr\u00e8s souvent accompagn\u00e9s de traces blanches \u00e0 l’arri\u00e8re. 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