{"id":6694,"date":"2019-02-23T10:40:57","date_gmt":"2019-02-23T09:40:57","guid":{"rendered":"http:\/\/agora.xtec.cat\/ieslasedeta\/?p=6694"},"modified":"2025-11-06T17:07:48","modified_gmt":"2025-11-06T16:07:48","slug":"ura-el-planeta-inclinat","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/ieslasedeta\/2018-2019\/ura-el-planeta-inclinat\/","title":{"rendered":"Ur\u00e0, el planeta inclinat"},"content":{"rendered":"<p><span style=\"font-weight: 400;\"><a href=\"https:\/\/agora.xtec.cat\/ieslasedeta\/wp-content\/uploads\/usu656\/2019\/01\/ura\u0300.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-6695 alignleft\" src=\"https:\/\/agora.xtec.cat\/ieslasedeta\/wp-content\/uploads\/usu656\/2019\/01\/ura\u0300.jpg\" alt=\"\" width=\"240\" height=\"240\" srcset=\"https:\/\/agora.xtec.cat\/ieslasedeta\/wp-content\/uploads\/usu656\/2019\/01\/ura\u0300.jpg 240w, https:\/\/agora.xtec.cat\/ieslasedeta\/wp-content\/uploads\/usu656\/2019\/01\/ura\u0300-150x150.jpg 150w\" sizes=\"auto, (max-width: 240px) 100vw, 240px\" \/><\/a>Ur\u00e0 va ser descobert el 13 de mar\u00e7 de 1781 per Sir William Herschel, que vivia a la ciutat anglesa de Bath. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ur\u00e0 \u00e9s el tercer planeta m\u00e9s gran del sistema solar. Tamb\u00e9 \u00e9s 63 vegades m\u00e9s gran que la Terra en volum i es el pen\u00faltim planeta del sistema solar per ordre de dist\u00e0ncia al sol.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">T\u00e9 l\u2019atmosfera m\u00e9s freda del sistema solar amb una temperatura m\u00ednima de \u2212224\u00baC que est\u00e0 formada d&#8217;hidrogen i heli. Les velocitats del vent a Ur\u00e0 poden arribar als 250 metres per segon. \u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">S&#8217;anomena en honor de la divinitat grega del cel Ur\u00e0 el pare de Cronos (Saturn) i l&#8217;avi de Zeus (J\u00fapiter).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ur\u00e0 tamb\u00e9 posseeix anells per\u00f2 molt febles i invisibles amb telescopis des de la Terra. Tamb\u00e9 posseeix diverses llunes.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Es diu planeta inclinat ja que fa 4.000 milions d\u2019anys un objecte de una mida enorme va xocar contra Ur\u00e0 i va fer que el planeta es gires i qued\u00e9s inclinat. Aix\u00f2 causa que cada 42 anys un dels pols estigui mirant cap al sol.<\/span><\/p>\n<!--[if lt IE 9]><script>document.createElement('audio');<\/script><![endif]-->\n<audio class=\"wp-audio-shortcode\" id=\"audio-6694-1\" preload=\"none\" style=\"width: 100%;\" controls=\"controls\"><source type=\"audio\/mpeg\" src=\"https:\/\/agora.xtec.cat\/ieslasedeta\/wp-content\/uploads\/usu656\/2019\/01\/Malena.m4a?_=1\" \/><a href=\"https:\/\/agora.xtec.cat\/ieslasedeta\/wp-content\/uploads\/usu656\/2019\/01\/Malena.m4a\">https:\/\/agora.xtec.cat\/ieslasedeta\/wp-content\/uploads\/usu656\/2019\/01\/Malena.m4a<\/a><\/audio>\n","protected":false},"excerpt":{"rendered":"<p>Ur\u00e0 El Planeta Inclinat<\/p>\n","protected":false},"author":1,"featured_media":6695,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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