{"id":962,"date":"2006-01-20T13:09:00","date_gmt":"2006-01-20T12:09:00","guid":{"rendered":"https:\/\/kids.esa.int\/pluto\/"},"modified":"2026-10-08T00:34:16","modified_gmt":"2026-10-07T22:34:16","slug":"pluto","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/pluto\/","title":{"rendered":"Pluto"},"content":{"rendered":"
\n

Pluto uppt\u00e4cktes 1930 av den 24-\u00e5rige Clyde Tombaugh, som anv\u00e4nde en speciell apparat f\u00f6r att j\u00e4mf\u00f6ra bilder av himlen. Det visade sig vara en liten v\u00e4rld, till och med mindre \u00e4n v\u00e5r m\u00e5ne.<\/p>\n<\/div>\n

Pluto r\u00f6r sig i en elliptisk (\u00e4ggformad) bana som varierar mellan 7 381 miljoner km (49 avst\u00e5nd mellan Solen och Jorden) och 4 446 miljoner km (30 avst\u00e5nd mellan Solen och Jorden). Eftersom en omloppsperiod varar i 248 \u00e5r skulle ingen som f\u00f6ds p\u00e5 Pluto n\u00e5gonsin f\u00e5 uppleva en enda f\u00f6delsedag!<\/p>\n

Man vet mycket lite om Pluto. Dess yta \u00e4r extremt kall (-230 grader C) och verkar vara t\u00e4ckt av fruset is. Under de senaste \u00e5ren har den befunnit sig ganska n\u00e4ra Solen och upplevt en kort sommar. Islagret p\u00e5 ytan har f\u00f6r\u00e5ngats och bildat en tunn atmosf\u00e4r. Nu drar den sig dock tillbaka in i solsystemets kalla djup, och denna atmosf\u00e4r kommer snart att frysa igen.<\/p>\n

Pluto roterar \u201cbakl\u00e4nges\u201d (fr\u00e5n \u00f6st till v\u00e4st) en g\u00e5ng var 6:e dag och 9 timmar. Dess st\u00f6rsta m\u00e5ne, Charon, tar lika l\u00e5ng tid p\u00e5 sig att kretsa runt Pluto. Det inneb\u00e4r att den som bor p\u00e5 ena sidan av Pluto aldrig skulle kunna se Charon. Tv\u00e5 mindre m\u00e5nar har nyligen uppt\u00e4ckts med rymdteleskopet Hubble.<\/p>\n

Under m\u00e5nga \u00e5r betraktades Pluto som den nionde planeten r\u00e4knat fr\u00e5n Solen (\u00e4ven om den ibland kommer n\u00e4rmare \u00e4n Neptunus). Idag betraktas den som en \u201cdv\u00e4rgplanet\u201d. Den \u00e4r ocks\u00e5 en av de st\u00f6rsta himlakropparna i Kuiperb\u00e4ltet, en grupp av isiga v\u00e4rldar som befinner sig bortom Neptunus.<\/p>","protected":false},"excerpt":{"rendered":"

Pluto was discovered in 1930 by 24 year-old Clyde Tombaugh, who was using a special machine to compare photos of the sky. It turned out to be a tiny world, […]<\/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\/2006\/01\/pluto2\/17879328-2-eng-GB\/Pluto.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2006\/01\/Pluto2","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":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-962","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/962","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=962"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/962\/revisions"}],"predecessor-version":[{"id":2105,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/962\/revisions\/2105"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=962"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=962"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=962"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=962"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=962"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=962"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=962"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}