{"id":915,"date":"2008-07-11T09:58:00","date_gmt":"2008-07-11T07:58:00","guid":{"rendered":"https:\/\/kids.esa.int\/soho_discovers_thousands_of_comets\/"},"modified":"2026-10-08T00:33:43","modified_gmt":"2026-10-07T22:33:43","slug":"soho_discovers_thousands_of_comets","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/soho_discovers_thousands_of_comets\/","title":{"rendered":"SOHO opdager tusindvis af kometer"},"content":{"rendered":"
\n

Siden det blev sat i drift i 1996 har ESA\/NASA-rumfart\u00f8jet SOHO uafbrudt holdt \u00f8je med den enorme, gl\u00f8dende Sol. Et af dets instrumenter, kaldet LASCO, bruges til at observere Solens ydre atmosf\u00e6re (koronaen). Men det skarpsynede LASCO-kamera har ogs\u00e5 vist en fantastisk evne til at finde de sm\u00e5 klumper af snavset is, som vi kalder kometer. I september 2010 havde SOHO fundet over 1.900 kometer \u2013 flere end alle andre kometopdagere tilsammen. Ikke d\u00e5rligt for et rumfart\u00f8j, der blev designet til at studere vores n\u00e6rmeste stjerne.<\/p>\n<\/div>\n

Kometer er klumper af is og st\u00f8v \u2013 \u2018rester\u2019 fra planeternes dannelse for 4,5 milliarder \u00e5r siden. Alle kometer kredser om Solen, og mange af dem er soln\u00e6rkometer, der passerer meget t\u00e6t p\u00e5 dens glohede overflade. Nogle af de kometer, der kredser om Solen, vises som sm\u00e5 prikker eller striber p\u00e5 SOHO\u2019s billeder \u2013 selvom ikke alle overlever den br\u00e6ndende passage. Mange af dem fordamper eller styrter ned i stjernen.<\/p>\n

Omkring 85% af SOHO\u2019s opdagelser er fragmenter af en engang s\u00e5 stor komet, der br\u00f8d i stykker under et d\u00f8dsdyk rundt om Solen, sandsynligvis for mange \u00e5rhundreder siden.<\/p>\n

\"Artist's
Kunstnerisk fremstilling af SOHO-rumfart\u00f8jet<\/figcaption><\/figure>\n

N\u00e5r det g\u00e6lder observation af kometer, har SOHO \u00e9n stor fordel i forhold til alle andre: dens placering mellem Solen og Jorden. Ved at sk\u00e6rme for Solens bl\u00e6ndende lys kan LASCO se omr\u00e5der, der ellers kun ville v\u00e6re synlige under en total solform\u00f8rkelse.<\/p>\n

Det er selvf\u00f8lgelig ikke LASCO selv, der foretager observationerne. Den opgave varetages af en gruppe h\u00f8jt kvalificerede frivillige, der gennemg\u00e5r billederne, s\u00e5 snart de er blevet downloadet. N\u00e5r SOHO har sendt dem til Jorden, kan billederne v\u00e6re tilg\u00e6ngelige p\u00e5 internettet og klar til analyse blot 15 minutter efter, at de er taget.<\/p>","protected":false},"excerpt":{"rendered":"

Since beginning operations in 1996, the ESA\/NASA SOHO spacecraft has spent its time staring non-stop at the enormous, sizzling Sun. One of its instruments, called LASCO, is used to observe […]<\/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\/2008\/06\/soho_s_record-breaking_discovery2\/17871744-2-eng-GB\/SOHO_s_record-breaking_discovery.jpg","esa_banner_description":"SOHO's record-breaking discovery","esa_banner_credit":"ESA\/ NASA\/ SOHO","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/06\/SOHO_s_record-breaking_discovery2","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":[46,10,11],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-915","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/915","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=915"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/915\/revisions"}],"predecessor-version":[{"id":4737,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/915\/revisions\/4737"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=915"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=915"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=915"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=915"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=915"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=915"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=915"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}