{"id":821,"date":"2004-12-02T15:40:00","date_gmt":"2004-12-02T14:40:00","guid":{"rendered":"https:\/\/kids.esa.int\/beyond_earth\/"},"modified":"2026-10-08T00:32:39","modified_gmt":"2026-10-07T22:32:39","slug":"beyond_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/beyond_earth\/","title":{"rendered":"Uden for Jorden"},"content":{"rendered":"
\n

De fleste rumfart\u00f8jer bringes i kredsl\u00f8b omkring Jorden. Men dette er ikke altid det optimale sted for videnskabelige satellitter, der udforsker det fjerne univers.<\/p>\n<\/div>\n

Hubble-rumteleskopet kredser i en cirkul\u00e6r bane 600 km over jordoverfladen med en h\u00e6ldning p\u00e5 28,5 grader i forhold til \u00e6kvator. Denne bane omkring Jorden g\u00f8r det lettere at udf\u00f8re reparationer og vedligeholdelse af observatoriet. Jorden og M\u00e5nen skygger dog for store dele af himlen.<\/p>\n

Hubbles efterf\u00f8lger, James Webb-rumteleskopet, vil operere langt l\u00e6ngere v\u00e6k. Det vil blive placeret i en stabil bane ved det s\u00e5kaldte L2-Lagrange-punkt, 1,5 millioner km v\u00e6k p\u00e5 Jordens natside.<\/p>\n

L2 er et af Jordens fem Lagrange-punkter. Ved disse punkter oph\u00e6ver Jordens, M\u00e5nens og Solens tiltr\u00e6kningskr\u00e6fter hinanden, s\u00e5 det er let at holde en satellit p\u00e5 samme position.<\/p>\n

Andre satellitter, s\u00e5som ESA\u2019s SOHO-observatorium, skal hele tiden holde \u00f8je med Solen. Dette rumfart\u00f8j befinder sig ved Lagrange-punktet L1, 1,5 millioner km i retning mod Solen fra Jorden.<\/p>\n

Da Jordens og Solens tyngdekraft er i ligev\u00e6gt ved L1, kan SOHO hele tiden sv\u00e6ve mellem dem uden at forbruge ret meget br\u00e6ndstof.<\/p>","protected":false},"excerpt":{"rendered":"

Most spacecraft are placed in orbits around the Earth. But this is not always the optimal place for scientific satellites that explore the distant universe. The Hubble Space Telescope follows […]<\/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\/2003\/05\/changing_seasons_on_saturn2\/17877220-2-eng-GB\/Changing_seasons_on_Saturn.jpg","esa_banner_description":"Changing seasons on Saturn","esa_banner_credit":"NASA and The Hubble Heritage Team (STScI\/AURA)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/05\/Changing_seasons_on_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":[10,65,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-821","post","type-post","status-publish","format-standard","hentry","category-learn","category-mission-control","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=821"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/821\/revisions"}],"predecessor-version":[{"id":1964,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/821\/revisions\/1964"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=821"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=821"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=821"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=821"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=821"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=821"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=821"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}