{"id":963,"date":"2006-01-19T11:13:00","date_gmt":"2006-01-19T10:13:00","guid":{"rendered":"https:\/\/kids.esa.int\/mercury\/"},"modified":"2026-10-08T00:34:16","modified_gmt":"2026-10-07T22:34:16","slug":"mercury","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/nb\/mercury\/","title":{"rendered":"Kvikks\u00f8lv"},"content":{"rendered":"
\n

Merkur er den f\u00f8rste planeten regnet fra Solen. Den er ikke s\u00e6rlig lett \u00e5 observere, siden den alltid befinner seg n\u00e6r Solen p\u00e5 himmelen. Selv n\u00e5r den st\u00e5r best til, ligger den n\u00e6r horisonten og er bare synlig i noen f\u00e5 timer etter solnedgang eller f\u00f8r soloppgang.<\/p>\n<\/div>\n

Planeten, som er oppkalt etter gudenes bevingede budbringer, kretser rundt Solen \u00e9n gang hver 88. dag. Den roterer imidlertid sv\u00e6rt sakte rundt sin egen akse \u2013 \u00e9n gang hver 58,6. dag. Dette utgj\u00f8r n\u00f8yaktig to tredjedeler av dens oml\u00f8pstid.<\/p>\n

Merkur er en liten, steinete planet. Den er bare omtrent like bred som Atlanterhavet, og 18 Merkur-planeter ville f\u00e5 plass inne i Jorden.<\/p>\n

Merkur ligner sv\u00e6rt mye p\u00e5 M\u00e5nen. Overflaten er dekket av nedslagskratere. Planeten har verken atmosf\u00e6re eller vann. Middagstemperaturen ved ekvator kan stige til 450 \u00b0C, men nettene er ekstremt kalde, med temperaturer under -180 \u00b0C. Det kan finnes noe vannis i de dype, m\u00f8rke kraterne n\u00e6r polene.<\/p>\n

Merkur har en overraskende h\u00f8y tetthet. Man antar at den har en stor jernkjerne som fyller det meste av Merkurs indre. Den har ogs\u00e5 et overraskende sterkt magnetfelt.<\/p>\n

S\u00e5 langt har romfart\u00f8yet Mariner 10 tatt bilder av mindre enn halvparten av overflaten p\u00e5 n\u00e6rt hold. ESA og Japan planlegger \u00e5 sende to romfart\u00f8y i bane rundt Merkur i 2013. BepiColombo-oppdraget er oppkalt etter en ber\u00f8mt italiensk matematiker og vitenskapsmann.<\/p>","protected":false},"excerpt":{"rendered":"

Mercury is the first planet from the Sun. It is not very easy to observe since it is always close to the Sun in the sky. Even when best placed, […]<\/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\/mercury_s_southern_hemisphere2\/17904638-2-eng-GB\/Mercury_s_Southern_Hemisphere.jpg","esa_banner_description":"","esa_banner_credit":"JPL","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2006\/01\/Mercury_s_Southern_Hemisphere2","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-963","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\/nb\/wp-json\/wp\/v2\/posts\/963","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=963"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/963\/revisions"}],"predecessor-version":[{"id":2106,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/posts\/963\/revisions\/2106"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/media?parent=963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/categories?post=963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/tags?post=963"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/panel?post=963"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/language?post=963"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/age?post=963"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/duration?post=963"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/resource_type?post=963"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/audience?post=963"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/nb\/wp-json\/wp\/v2\/wf_post_folders?post=963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}