{"id":248,"date":"2022-08-12T13:42:00","date_gmt":"2022-08-12T11:42:00","guid":{"rendered":"https:\/\/corot.top\/eva\/?p=248"},"modified":"2026-02-09T23:42:06","modified_gmt":"2026-02-09T22:42:06","slug":"video-au-festival-de-fleurance","status":"publish","type":"post","link":"https:\/\/corot.top\/eva\/?p=248","title":{"rendered":"Vid\u00e9o au festival de Fleurance"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">R\u00e9alisation d&rsquo;une video projet\u00e9e au <a rel=\"noreferrer noopener\" href=\"https:\/\/www.festival-astronomie.com\/\" data-type=\"URL\" data-id=\"https:\/\/www.festival-astronomie.com\/\" target=\"_blank\">festival d&rsquo;Astronomie de Fleurance<\/a> Aout 2022 intitul\u00e9e: \u00ab\u00a0Comment avoir des constellations communes avec les extra-terrestres ?\u00a0\u00bb La vid\u00e9o a \u00e9t\u00e9 pr\u00e9sent\u00e9e par S\u00e9bastien Carassou m&rsquo;invitant \u00e0 monter sur sc\u00e8ne.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p class=\"wp-block-paragraph\">La vid\u00e9o a \u00e9t\u00e9 r\u00e9alis\u00e9e dans le cadre du concours <a href=\"https:\/\/saf-astronomie.fr\/younivers\/\" data-type=\"URL\" data-id=\"https:\/\/saf-astronomie.fr\/younivers\/\" target=\"_blank\" rel=\"noreferrer noopener\">Younivers<\/a> organis\u00e9 par la Soci\u00e9t\u00e9 Astronomique de France. D&rsquo;apr\u00e8s une id\u00e9e originale de Anna et Eva. Remerciements \u00e0 la SAF, et en particulier \u00e0 Sylvain Bouley (GEOPS Geosciences Paris Saclay, Universit\u00e9 Paris Saclay), Lucie Maquet (Institut de M\u00e9canique c\u00e9leste et de calcul des \u00e9ph\u00e9m\u00e9rides) et S\u00e9bastien Carassou (atrophysicien et vulgarisateur sebastiencarassou.com)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Elle aborde \u00e0 la mani\u00e8re de !Shtam, c&rsquo;est \u00e0 dire avec un certain humour, comment il est possible d&rsquo;\u00e9changer avec les extra-terrestres sur des constellations d&rsquo;\u00e9toiles. C&rsquo;est \u00e0 dire comment d\u00e9finir des constellations dans l&rsquo;espace en 3D qui seraient valables pour les humains sur terre mais aussi depuis une autre plan\u00e8te qui se trouverait ailleurs dans l&rsquo;espace. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le principe pour d\u00e9finir les constellations en 3D qui auraient du sens pxour nous et les extraterrestre a \u00e9t\u00e9 de regrouper les \u00e9toiles les plus proches entre elles (si elles sont aussi les plus lumineuses). Puis les diff\u00e9rents groupes d\u00e9finissent ainsi les constellations qu&rsquo;il a \u00e9t\u00e9 possible de repr\u00e9senter en 3D dans un navigateur web d&rsquo;une part, et de les imprimer en 3D d&rsquo;autre part.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les outils utilis\u00e9s sont : Wikipedia (base de donn\u00e9e d&rsquo;\u00e9toile), Excel (filtres), Javascript (calculs et visualisation)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"http:\/\/sergi5.com\/etoiles\/etoiles.html\">Visualiser les constellations partag\u00e9es avec les Extra-Terrestres en Javascript<\/a> (projection en 2D) et&nbsp;<a href=\"http:\/\/sergi5.com\/etoiles\/etoiles3d.html\">en 3d<\/a> (loucher pour voir en 3D)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-12.07.48-1024x806.jpg\" alt=\"\" class=\"wp-image-250\" style=\"width:1024px;height:806px\" width=\"1024\" height=\"806\" srcset=\"https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-12.07.48-1024x806.jpg 1024w, https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-12.07.48-300x236.jpg 300w, https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-12.07.48-768x605.jpg 768w, https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-12.07.48-1536x1210.jpg 1536w, https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-12.07.48.jpg 1656w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"602\" src=\"https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-13.36.24-1024x602.jpg\" alt=\"\" class=\"wp-image-253\" srcset=\"https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-13.36.24-1024x602.jpg 1024w, https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-13.36.24-300x176.jpg 300w, https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-13.36.24-768x451.jpg 768w, https:\/\/corot.top\/eva\/wp-content\/uploads\/2023\/02\/Capture-decran-2023-02-01-a-13.36.24.jpg 1137w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Constellations partag\u00e9es avec les  Extra-Terrestres en 3d\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/yR9HCfnPbxs?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; 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