{"id":1752,"date":"2023-12-28T07:06:58","date_gmt":"2023-12-28T06:06:58","guid":{"rendered":"https:\/\/www.astro.phdata.fr\/astro\/?p=1752"},"modified":"2023-12-28T07:19:22","modified_gmt":"2023-12-28T06:19:22","slug":"jupiter","status":"publish","type":"post","link":"https:\/\/www.astro.phdata.fr\/astro\/jupiter\/","title":{"rendered":"Jupiter"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1752\" class=\"elementor elementor-1752\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ab89dbf e-flex e-con-boxed e-con e-parent\" data-id=\"ab89dbf\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f71324d elementor-widget elementor-widget-heading\" data-id=\"f71324d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Comment savoir quand la grande tache rouge de Jupiter est observable\n<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5563336 elementor-widget elementor-widget-text-editor\" data-id=\"5563336\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En principe la m\u00e9canique de Jupiter est bien illustr\u00e9e par les applis comme Stellarium, Galil\u00e9o, Astrosky, Atlas-virtuel-des-plan\u00e8tes et d\u2019autres ; pour les satellites \u00e7a fonctionne bien, mais pour la grande tache rouge, la GRS (great red spot), non car ce cyclone n\u2019est pas fixe dans l\u2019atmosp\u00e8re de la plan\u00e8te.<br \/>Pour actualiser sa position, sa longitude dans un rep\u00e8re nomm\u00e9 (Syst\u00e8me 2), personnellement je me sers de Galileo ou d\u2019Astrosky (m\u00eame structure de page). Un clic sur le lien \u2018\u2019Longitude de la tache rouge\u2019\u2019 nous am\u00e8ne sur un une <a href=\"http:\/\/jupos.privat.t-online.de\/rGrs.htm\" target=\"_blank\" rel=\"noopener\">page\u00a0<\/a> o\u00f9 on trouve un graphe avec la date en ordonn\u00e9e, la longitude de la tache en abscisse pr\u00e9sentant une s\u00e9rie de points bleus, rouges, verts qui d\u00e9rivent au fil des dates. <br \/>Le point rouge correspond au passage de la GRS au m\u00e9ridein central de Jupiter : on lit en abscisse la longitude recherch\u00e9e, \u00e0 la date d\u00e9sir\u00e9e.<br \/>Revenant dans Astrosky ou Galileo, on rentre cette valeur dans la fen\u00eatre correspondante ; on ajuste la date et l\u2019heure d\u2019observation. Alors on a tout bon, positions de la GRS et des satellites.<br \/>Ce n\u2019est pas le cas avec Stellarium pour lequel les satellites seront OK mais pas la GRS . Pour corriger sa longitude, c\u2019est beaucoup plus compliqu\u00e9, il faut rentrer dans un fichier .ini qu\u2019il faut trouver, trouver la ligne \u00e0 modifier puis relancer Stellarium\u2026 et refaire pour fignoler.<br \/>On peut v\u00e9rifier la correspondance avec les sites qui donnent les heures de passage de la GRS ; j\u2019aime bien celui-ci <a href=\"http:\/\/pgj.astro.free.fr\/gtr2023.htm.\" target=\"_blank\" rel=\"noopener\">http:\/\/pgj.astro.free.fr\/gtr2023.htm.<\/a> <br \/>Pour l\u2019ann\u00e9e 2024 il suffit de modifier le 2023 en 2024\u00a0dans\u00a0l\u2019URL.<\/p><p><strong>Auteur Martial du club astro <a href=\"https:\/\/www.astroclubm13.fr\/\" target=\"_blank\" rel=\"noopener\">M13<\/a><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-cd2b8a6 e-flex e-con-boxed e-con e-parent\" data-id=\"cd2b8a6\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Comment savoir quand la grande tache rouge de Jupiter est observable En principe la m\u00e9canique de Jupiter est bien illustr\u00e9e par les applis comme Stellarium, Galil\u00e9o, Astrosky, Atlas-virtuel-des-plan\u00e8tes et d\u2019autres ; pour les satellites \u00e7a fonctionne bien, mais pour la grande tache rouge, la GRS (great red spot), non car ce cyclone n\u2019est pas fixe [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1754,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[9],"tags":[],"class_list":["post-1752","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-les-planetes"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.astro.phdata.fr\/astro\/wp-content\/uploads\/2023\/12\/io-2773533_1280.jpg?fit=1280%2C623&ssl=1","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/posts\/1752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/comments?post=1752"}],"version-history":[{"count":16,"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/posts\/1752\/revisions"}],"predecessor-version":[{"id":1769,"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/posts\/1752\/revisions\/1769"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/media\/1754"}],"wp:attachment":[{"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/media?parent=1752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/categories?post=1752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.astro.phdata.fr\/astro\/wp-json\/wp\/v2\/tags?post=1752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}