{"id":728,"date":"2012-07-03T12:27:00","date_gmt":"2012-07-03T10:27:00","guid":{"rendered":"https:\/\/kids.esa.int\/titan_s_tides_point_to_a_hidden_ocean\/"},"modified":"2026-10-08T00:31:37","modified_gmt":"2026-10-07T22:31:37","slug":"titan_s_tides_point_to_a_hidden_ocean","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/titan_s_tides_point_to_a_hidden_ocean\/","title":{"rendered":"P\u0159\u00edlivy a odlivy na Titanu nazna\u010duj\u00ed existenci skryt\u00e9ho oce\u00e1nu"},"content":{"rendered":"
\n

Zem\u011b je \u010dasto ozna\u010dov\u00e1na jako modr\u00e1 planeta, proto\u017ee je to jedin\u00fd sv\u011bt v na\u0161\u00ed slune\u010dn\u00ed soustav\u011b, kter\u00fd je z velk\u00e9 \u010d\u00e1sti pokryt vodou. P\u0159edpokl\u00e1d\u00e1 se v\u0161ak, \u017ee \u0159ada satelit\u016f, v\u010detn\u011b Titanu, ob\u0159\u00edho m\u011bs\u00edce Saturnu, m\u00e1 pod sv\u00fdm povrchem oce\u00e1ny. D\u016fkazem existence podpovrchov\u00e9ho oce\u00e1nu na Titanu je objev velk\u00fdch p\u0159\u00edlivov\u00fdch jev\u016f.<\/p>\n<\/div>\n

Ka\u017ed\u00fd, kdo nav\u0161t\u00edv\u00ed pob\u0159e\u017e\u00ed, jist\u011b zn\u00e1 p\u0159\u00edlivy a odlivy \u2013 dvakr\u00e1t denn\u011b doch\u00e1z\u00ed ke zv\u00fd\u0161en\u00ed a sn\u00ed\u017een\u00ed hladiny mo\u0159e. M\u00e9n\u011b z\u0159ejm\u00e9 jsou v\u0161ak p\u0159\u00edlivy a odlivy, kter\u00e9 zp\u016fsobuj\u00ed, \u017ee se zemsk\u00e1 k\u016fra zved\u00e1 a kles\u00e1 o n\u011bkolik des\u00edtek centimetr\u016f. Tyto p\u0159\u00edlivy a odlivy jsou zp\u016fsobeny spole\u010dn\u00fdm gravita\u010dn\u00edm p\u016fsoben\u00edm M\u011bs\u00edce a Slunce na Zemi. P\u0159\u00edlivy a odlivy na Titanu vznikaj\u00ed podobn\u00fdm zp\u016fsobem. Tentokr\u00e1t je to v\u0161ak gravita\u010dn\u00ed p\u016fsoben\u00ed Saturnu, kter\u00e9 zp\u016fsobuje, \u017ee se tento m\u011bs\u00edc b\u011bhem sv\u00e9 16denn\u00ed ob\u011b\u017en\u00e9 dr\u00e1hy kolem planety m\u011bn\u00ed ve tvaru.<\/p>\n

Zm\u011bny tvaru Titanu byly zaznamen\u00e1ny pe\u010dliv\u00fdm sledov\u00e1n\u00edm dr\u00e1hy sondy Cassini p\u0159i jej\u00edch p\u0159ibl\u00ed\u017een\u00edch k tomuto m\u011bs\u00edci. Rozd\u00edly ve zp\u016fsobu, jak\u00fdm Titan p\u016fsobil na sondu Cassini, uk\u00e1zaly, \u017ee gravita\u010dn\u00ed p\u016fsoben\u00ed m\u011bs\u00edce \u2013 a tedy i jeho tvar \u2013 se velmi nepatrn\u011b zm\u011bnilo. Ve sv\u00e9m nejvzd\u00e1len\u011bj\u0161\u00edm bod\u011b, kdy je gravita\u010dn\u00ed p\u016fsoben\u00ed Saturnu slab\u0161\u00ed, je Titan t\u00e9m\u011b\u0159 kulat\u00fd, jako fotbalov\u00fd m\u00ed\u010d. Kdy\u017e je tento m\u011bs\u00edc nejbl\u00ed\u017ee Saturnu, je prot\u00e1hl\u00fd, tak\u017ee se sp\u00ed\u0161e podob\u00e1 ragbyov\u00e9mu m\u00ed\u010di.<\/p>\n

V d\u016fsledku t\u011bchto p\u0159\u00edlivov\u00fdch sil se povrch Titanu zved\u00e1 a kles\u00e1 o v\u00edce ne\u017e 10 metr\u016f. Tato v\u00fd\u0161kov\u00e1 zm\u011bna je v\u0161ak mnohem v\u011bt\u0161\u00ed, ne\u017e by se dalo o\u010dek\u00e1vat, kdyby byl m\u011bs\u00edc zcela pevn\u00fd. To nazna\u010duje, \u017ee pod ledovou sko\u0159\u00e1pkou o tlou\u0161\u0165ce p\u0159ibli\u017en\u011b 50 km se nach\u00e1z\u00ed podpovrchov\u00fd oce\u00e1n, kter\u00fd m\u016f\u017ee b\u00fdt hlubok\u00fd a\u017e 250 km.<\/p>","protected":false},"excerpt":{"rendered":"

Earth is often known as the blue planet, because it is the only world in our Solar System which is largely covered by water. However, a number of satellites, including […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2012\/06\/titan_s_tides_raised_by_saturn2\/17912925-2-eng-GB\/Titan_s_tides_raised_by_Saturn.jpeg","esa_banner_description":"","esa_banner_credit":"NASA\/JPL","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/06\/Titan_s_tides_raised_by_Saturn2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,12],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-728","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/728","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=728"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/728\/revisions"}],"predecessor-version":[{"id":1871,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/728\/revisions\/1871"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=728"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=728"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=728"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=728"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=728"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=728"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=728"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}