{"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\/sl\/titan_s_tides_point_to_a_hidden_ocean\/","title":{"rendered":"Plime na Titanu ka\u017eejo na skriti ocean"},"content":{"rendered":"
\n

Zemlja je pogosto znana kot modri planet, saj je edini svet v na\u0161em Oson\u010dju, ki ga v veliki meri pokriva voda. Vendar pa se domneva, da ima pod povr\u0161ino \u0161tevilni sateliti, med njimi tudi Saturnov orja\u0161ki luna Titan, oceane. Namig o obstoju podzemnega oceana na Titanu izhaja iz odkritja velikih plim in osek.<\/p>\n<\/div>\n

Vsak, ki obi\u0161\u010de obalo, pozna plime in oseke \u2013 dvakrat dnevno nara\u0161\u010danje in padanje morske gladine. Manj o\u010ditne so plime in oseki, ki povzro\u010dajo dvigovanje in spu\u0161\u010danje zemeljske skorje za nekaj deset centimetrov. Te plime in oseki povzro\u010da skupna gravitacijska sila Lune in Sonca na Zemljo. Plime na Titanu nastajajo na podoben na\u010din. Tokrat pa je to privla\u010dna sila Saturna, ki povzro\u010da, da luna spreminja obliko med svojim 16-dnevnim obhodom okoli planeta.<\/p>\n

Spremembe oblike Titana so bile zaznane s skrbnim sledenjem poti vesoljske sonde Cassini, ko je ta letela blizu lune. Razlike v na\u010dinu, kako je Titan vplival na Cassini, so pokazale, da se je gravitacijska sila lune \u2013 in s tem tudi njena oblika \u2013 zelo rahlo spremenila. Na najbolj oddaljeni to\u010dki, ko je Saturnova privla\u010dna sila \u0161ibkej\u0161a, je Titan skoraj krogelast, podoben nogometni \u017eogi. Ko je satelit najbli\u017eje Saturnu, se raztegne, tako da postane bolj podoben ragbijski \u017eogi.<\/p>\n

Posledica teh plim in osek je, da se povr\u0161ina Titana dvigne in spusti za ve\u010d kot 10 metrov. Vendar je to nihanje precej ve\u010dje, kot bi bilo mogo\u010de pri\u010dakovati, \u010de bi bil satelit v celoti trden. To ka\u017ee, da pod ledeno skorjo, debelo pribli\u017eno 50 km, le\u017ei podzemni ocean, morda globok 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\/sl\/wp-json\/wp\/v2\/posts\/728","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=728"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/728\/revisions"}],"predecessor-version":[{"id":1871,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/728\/revisions\/1871"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=728"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=728"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=728"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=728"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=728"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=728"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=728"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=728"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=728"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}