{"id":970,"date":"2005-07-11T09:32:00","date_gmt":"2005-07-11T07:32:00","guid":{"rendered":"https:\/\/kids.esa.int\/history_s_greatest_comet_hunter\/"},"modified":"2026-10-08T00:34:21","modified_gmt":"2026-10-07T22:34:21","slug":"history_s_greatest_comet_hunter","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/history_s_greatest_comet_hunter\/","title":{"rendered":"Historiens st\u00f8rste kometj\u00e6ger"},"content":{"rendered":"<div class=\"lede\">\n<p>Fra tid til anden kan man med det blotte \u00f8je se en lys komet med lange, udstrakte haler. I de senere \u00e5r har ESA\/NASA\u2019s SOHO-rumfart\u00f8j imidlertid vist, at disse \u201cbeskidte snebolde\u201d er langt mere almindelige, end man kunne forestille sig.<\/p>\n<\/div>\n<p>SOHO blev udviklet til at observere Solen, ikke til at lede efter kometer. Et af dens instrumenter, kaldet LASCO, bruges til at observere Solens ydre atmosf\u00e6re (koronaen). Men det har ogs\u00e5 gjort det muligt for SOHO at blive historiens st\u00f8rste kometj\u00e6ger.<\/p>\n<p>LASCO unders\u00f8ger den svage korona ved at blokere det skarpe lys fra Solen. Helt tilf\u00e6ldigt giver dette ogs\u00e5 LASCO mulighed for at opdage sm\u00e5 kometer, der passerer t\u00e6t forbi Solen. De fleste af disse iskl\u00e6dte indtr\u00e6ngere suser forbi inden for 800.000 km fra Solens overflade \u2013 s\u00e5 t\u00e6t p\u00e5, at de fordamper eller styrter ned i dens gl\u00f8dende ovn.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"3055\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/09\/SOHO_spacecraft2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2000\/09\/soho_spacecraft2\/17865750-3-eng-GB\/SOHO_spacecraft.jpg\" alt=\"SOHO spacecraft\"><figcaption>SOHO-rumfart\u00f8jet<\/figcaption><\/figure>\n<p>Inden SOHO blev opsendt i december 1995, var der kun blevet opdaget 16 kometer, der passerer t\u00e6t forbi Solen, ved hj\u00e6lp af rumfart\u00f8jer. Pr. 6. juli 2005 havde SOHO alene fundet ikke f\u00e6rre end 990. Det betyder, at SOHO har opdaget n\u00e6sten halvdelen af alle de kometer, hvis baner er blevet beregnet siden tidernes morgen. Det svimlende antal forventes at overstige 1.000 i l\u00f8bet af sommeren og forts\u00e6tte med at stige.<\/p>\n<p>Mange af disse opdagelser er blevet gjort af amat\u00f8rer ved hj\u00e6lp af SOHO-billeder p\u00e5 internettet. SOHO-kometj\u00e6gerne kommer fra mange lande, herunder USA, Storbritannien, Kina, Japan, Taiwan, Rusland, Ukraine, Frankrig, Tyskland og Litauen.<\/p>\n<p>Kometer er klumper af is og st\u00f8v \u2013 \u2018rester\u2019 fra planeternes dannelse for 4,5 milliarder \u00e5r siden.<\/p>\n<nav class=\"related\" aria-label=\"Relateret\">\n<h2 class=\"related__heading\">Relateret<\/h2>\n<div class=\"grid related__grid\">\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/da\/build_a_soho_spacecraft\/\"><\/p>\n<figure class=\"thumbnail\"><img decoding=\"async\" class=\"image-bg\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2003\/11\/artist_s_impression_of_soho_spacecraft2\/17874814-2-eng-GB\/Artist_s_impression_of_SOHO_spacecraft.jpg\" alt=\"Test your skills - build your own SOHO spacecraft\" loading=\"lazy\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">Pr\u00f8v dine evner \u2013 byg dit eget SOHO-rumfart\u00f8j<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<\/div>\n<\/nav>","protected":false},"excerpt":{"rendered":"<p>From time to time a bright comet with long, trailing tails becomes visible with the naked eye. However, in recent years the ESA \/ NASA SOHO spacecraft has shown that [&hellip;]<\/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\/09\/soho_see_two_comets_plunging_into_the_sun2\/17885766-2-eng-GB\/SOHO_see_two_comets_plunging_into_the_Sun.gif","esa_banner_description":"SOHO see two comets plunging into the Sun","esa_banner_credit":"SOHO\/LASCO (ESA\/NASA)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/09\/SOHO_see_two_comets_plunging_into_the_Sun2","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-970","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\/970","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=970"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/970\/revisions"}],"predecessor-version":[{"id":4763,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/970\/revisions\/4763"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=970"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=970"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=970"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=970"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=970"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=970"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=970"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}