{"id":822,"date":"2004-12-02T15:38:00","date_gmt":"2004-12-02T14:38:00","guid":{"rendered":"https:\/\/kids.esa.int\/different_orbits\/"},"modified":"2026-10-08T00:32:40","modified_gmt":"2026-10-07T22:32:40","slug":"different_orbits","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/different_orbits\/","title":{"rendered":"Ulike baner"},"content":{"rendered":"
\n

En bane er banen et objekt f\u00f8lger rundt et bestemt punkt i rommet, for eksempel banen M\u00e5nen f\u00f8lger rundt Jorden. Baner bestemmes av tyngdekraften og er ofte \u2018elliptiske\u2019, alts\u00e5 ovale.<\/p>\n<\/div>\n

Hver satellitt plasseres i den banen som er best egnet til \u00e5 utf\u00f8re oppdraget sitt. Jordobservasjonssatellitter plasseres for eksempel vanligvis i lave (400\u20131 200 km) sirkul\u00e6re baner. Dette gj\u00f8r at de kan kretser rundt Jorden \u00e9n gang hvert par timer og f\u00e5 detaljerte bilder av planetens overflate.<\/p>\n

Den beste banen for disse satellittene er en \u201cpol\u00e6r\u201d bane, som f\u00f8rer dem over nord- og s\u00f8rpolen. Mens Jorden roterer under dem, kan satellittene se rett ned og kartlegge hele planeten \u2013 stripe for stripe \u2013 over en periode p\u00e5 noen dager.<\/p>\n

V\u00e6r- og kommunikasjonssatellitter \u201csvever\u201d ofte over den samme delen av jorden 24 timer i d\u00f8gnet. Dette er mulig ved \u00e5 plassere dem i sirkul\u00e6re baner omtrent 36 000 km over ekvator. I denne h\u00f8yden holder de tritt med Jordens rotasjon, slik at de alltid ser ned p\u00e5 de samme stedene. Dette kalles en \u201cgeostasjon\u00e6r bane\u201d. Noen satellitter \u2013 blant annet den internasjonale romstasjonen \u2013 f\u00f8lger lave baner som er skr\u00e5stilt i forhold til ekvator.<\/p>\n

En rekke vitenskapelige satellitter, som for eksempel ESAs Cluster og XMM-Newton, f\u00f8lger sv\u00e6rt elliptiske (eggformede) baner som f\u00f8rer dem tett innp\u00e5 Jorden for deretter \u00e5 f\u00f8re dem langt bort.<\/p>","protected":false},"excerpt":{"rendered":"

An orbit is the path of an object around a particular point in space, for example the path the Moon takes around the Earth. Orbits are determined by gravity, and […]<\/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\/2001\/05\/some_popular_orbits3\/17864898-3-eng-GB\/Some_popular_orbits.jpg","esa_banner_description":"Some popular orbits","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/05\/Some_popular_orbits3","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-822","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\/nb\/wp-json\/wp\/v2\/posts\/822","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/comments?post=822"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/822\/revisions"}],"predecessor-version":[{"id":1965,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/822\/revisions\/1965"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=822"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=822"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=822"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=822"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=822"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=822"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=822"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}