{"id":6180,"date":"2016-08-26T13:35:43","date_gmt":"2016-08-26T13:35:43","guid":{"rendered":"https:\/\/blogs.futura-sciences.com\/feldmann\/?p=6180"},"modified":"2016-09-06T05:21:32","modified_gmt":"2016-09-06T05:21:32","slug":"video-telescopes-hommes","status":"publish","type":"post","link":"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/08\/26\/video-telescopes-hommes\/","title":{"rendered":"En vid\u00e9o : des t\u00e9lescopes et des hommes"},"content":{"rendered":"<p><strong>Les t\u00e9lescopes sont une merveilleuse invention qui permettent aux hommes de partir tr\u00e8s loin dans l&#8217;Univers en gardant les pieds sur terre.<\/strong><\/p>\n<p>C&#8217;est \u00e0 <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/01\/06\/galilee-le-savant-qui-a-ouvert-nos-yeux-sur-lunivers\/\" target=\"_blank\">Galil\u00e9e <\/a>qu&#8217;on attribue l&#8217;invention de la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/07\/07\/lunette-astronomique\/\" target=\"_blank\">lunette astronomique<\/a> (qu&#8217;on appelle r\u00e9fracteur) au d\u00e9but du XVIIe si\u00e8cle. Le grand savant italien, f\u00e9ru d\u2019optique g\u00e9om\u00e9trique, fut capable de r\u00e9gler correctement la longue-vue con\u00e7ue par l\u2019opticien hollandais Hans Lippershey\u00a0de fa\u00e7on \u00e0 en limiter les aberrations, avant de\u00a0la tourner vers le ciel \u00a0pour y faire\u00a0d\u2019incroyables d\u00e9couvertes : des <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/03\/ar-2443-un-spectaculaire-groupe-de-taches-solaires\/\" target=\"_blank\">taches solaires<\/a> et des irr\u00e9gularit\u00e9s \u00e0 la surface de la <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/12\/02\/sous-la-lune-un-clocher-aux-tuiles-vernissees\/\" target=\"_blank\">Lune <\/a>(ce qui sous-entend que ces deux astres sont imparfaits), des phases pour <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/07\/21\/avez-vous-deja-observe-le-croissant-de-venus\/\" target=\"_blank\">V\u00e9nus<\/a>, quatre satellites autour de <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/01\/25\/incroyable-triple-transit-de-satellites-devant-jupiter\/\" target=\"_blank\">Jupiter <\/a>(Io, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/12\/11\/image-fascinante-du-satellite-europe\/\" target=\"_blank\">Europe<\/a>, Ganym\u00e8de et <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/11\/30\/callisto-occulte-io\/\" target=\"_blank\">Callisto<\/a>) et des myriades d\u2019\u00e9toiles qui composent la\u00a0<a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/06\/10\/voie-lactee-et-bioluminescence-dans-le-sud-de-laustralie\/\" target=\"_blank\">Voie lact\u00e9e<\/a>.<\/p>\n\n<!-- iframe plugin v.5.1 wordpress.org\/plugins\/iframe\/ -->\n<iframe loading=\"lazy\" src=\"https:\/\/player.vimeo.com\/video\/177245881\" width=\"640\" height=\"360\" frameborder=\"0\" 0=\"webkitallowfullscreen\" 1=\"mozallowfullscreen\" 2=\"allowfullscreen&gt;&lt;\/iframe\" scrolling=\"yes\" class=\"iframe-class\"><\/iframe>\n\n<p>Un demi-si\u00e8cle plus tard, l\u2019\u00e9cossais James Gregory fut le premier \u00e0 d\u00e9crire le principe du t\u00e9lescope \u00e0 miroir (qu&#8217;on appelle r\u00e9flecteur) et le math\u00e9maticien anglais Isaac Newton en r\u00e9alisa le premier exemplaire dot\u00e9 d&#8217;un miroir concave en bronze de 2,5 cm de diam\u00e8tre.<!--more--><\/p>\n<p>Depuis un peu plus de quatre si\u00e8cles lunettes et t\u00e9lescopes n&#8217;ont cess\u00e9 de se d\u00e9velopper, nous ouvrant une fen\u00eatre toujours plus grande sur notre Univers. Ce sont quelques-uns de ces instruments (de la modeste paire de jumelles au t\u00e9lescope g\u00e9ant) qui sont rassembl\u00e9s dans cette vid\u00e9o.\u00a0Les images \u00a0d&#8217;observations nocturnes ont \u00e9t\u00e9 r\u00e9alis\u00e9es \u00e0 l&#8217;occasion de diff\u00e9rentes manifestations : <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/08\/04\/profitez-nuits-etoiles-decouvrir-ciel\/\" target=\"_blank\">Nuits des \u00e9toiles<\/a>, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/03\/20\/a-lyon-la-nuit-de-lequinoxe-a-ete-un-succes\/\" target=\"_blank\">Nuit de l&#8217;Equinoxe<\/a>, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/05\/08\/rap-2016-retour-belle-manifestation\/\" target=\"_blank\">Rencontres Astronomiques de Printemps<\/a>, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/09\/ciel-canaries\/\" target=\"_blank\">nuits d&#8217;observations aux Canaries<\/a>.<\/p>\n<p>Les instruments professionnels ont \u00e9t\u00e9 photographi\u00e9s dans l&#8217;ordre d&#8217;apparition suivant : <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/19\/lobservatoire-strasbourg\/\" target=\"_blank\">Observatoire de Strasbourg<\/a>, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/09\/05\/meridien-greenwich\/\" target=\"_blank\">Observatoire de Greenwich<\/a>, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2014\/05\/26\/lobservatoire-meudon\/\" target=\"_blank\">Observatoire de Meudon<\/a>, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/01\/le-telescope-de-foucault-a-lobservatoire-de-marseille\/\" target=\"_blank\">Observatoire de Marseille<\/a>, <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/11\/20\/la-grande-lunette-de-lobservatoire-de-nice\/\" target=\"_blank\">Observatoire de Nice<\/a> et <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2015\/10\/16\/en-images-le-grand-telescope-des-canaries\/\" target=\"_blank\">Grand T\u00e9lescope des Iles Canaries<\/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>Les t\u00e9lescopes sont une merveilleuse invention qui permettent aux hommes de partir tr\u00e8s loin dans l&#8217;Univers en gardant les pieds sur terre. C&#8217;est \u00e0 Galil\u00e9e qu&#8217;on attribue l&#8217;invention de la lunette astronomique (qu&#8217;on appelle r\u00e9fracteur) au d\u00e9but du XVIIe si\u00e8cle. Le grand savant italien, f\u00e9ru d\u2019optique g\u00e9om\u00e9trique, fut capable de r\u00e9gler correctement la longue-vue con\u00e7ue &hellip; <a href=\"https:\/\/blogs.futura-sciences.com\/feldmann\/2016\/08\/26\/video-telescopes-hommes\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">En vid\u00e9o : des t\u00e9lescopes et des hommes<\/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":6253,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[87],"tags":[158,1791,696,148,1562,1777,104,1024,96],"class_list":["post-6180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-hommes-et-le-ciel","tag-galilee","tag-hans-lippershey","tag-isaac-newton","tag-lunette-astronomique","tag-nuit-de-lequinoxe","tag-nuits-des-etoiles","tag-observatoire","tag-rencontres-astronomiques-de-printemps","tag-telescope"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - 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