{"id":1013,"date":"2010-06-17T09:31:00","date_gmt":"2010-06-17T07:31:00","guid":{"rendered":"https:\/\/kids.esa.int\/rosetta_s_blind_date_with_asteroid_lutetia\/"},"modified":"2026-10-08T00:34:52","modified_gmt":"2026-10-07T22:34:52","slug":"rosetta_s_blind_date_with_asteroid_lutetia","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/rosetta_s_blind_date_with_asteroid_lutetia\/","title":{"rendered":"Rosettas blind date med asteroiden Lutetia"},"content":{"rendered":"<div class=\"lede\">\n<p>ESAs kometj\u00e6ger Rosetta er p\u00e5 vej mod en blind date med asteroiden Lutetia. Ligesom mange f\u00f8rste dates skal Rosetta m\u00f8de Lutetia en l\u00f8rdag aften. Men ingen ved endnu, hvordan Lutetia ser ud p\u00e5 t\u00e6t hold. Det er sandsynligt, at Lutetias overflade vil v\u00e6re meget gammel og pr\u00e6get af kratere, da asteroider er klippestykker, der er tilbage fra planeternes dannelse.<\/p>\n<\/div>\n<p>Der vides kun lidt om dette mystiske medlem af det prim\u00e6re asteroideb\u00e6lte, som kredser om Solen mellem Mars og Jupiter. Lutetia er dog uden tvivl den st\u00f8rste asteroide, der hidtil er blevet bes\u00f8gt af et rumfart\u00f8j. Oprindeligt mente man, at den havde en diameter p\u00e5 omkring 95 km, men at den kun var let elliptisk (\u00e6ggeformet). Et nyere sk\u00f8n tyder p\u00e5, at den kan v\u00e6re langt mere langstrakt og op til 134 km bred. De konstante \u00e6ndringer i dens lysstyrke viser tydeligt, at Lutetia roterer og har en ru overflade.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2589\" data-credit=\"ESA, image by AOES Medialab\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2002\/11\/Deep-space_hibernation_before_comet_rendezvous2\" 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\/2002\/11\/deep-space_hibernation_before_comet_rendezvous2\/17864862-3-eng-GB\/Deep-space_hibernation_before_comet_rendezvous.jpg\" alt=\"Deep-space hibernation before comet rendezvous\"><figcaption>Dvaletilstand i det ydre rum inden m\u00f8det med kometen<\/figcaption><\/figure>\n<p>Et andet mysterium drejer sig om, hvad asteroiden best\u00e5r af. De fleste m\u00e5linger tyder p\u00e5, at den er af \u2018C-typen\u2019, som indeholder kulstofforbindelser. Nogle unders\u00f8gelser peger dog p\u00e5, at den m\u00e5ske er af \u2018M-typen\u2019, der er rig p\u00e5 metaller.<\/p>\n<p>Svarene p\u00e5 alle disse sp\u00f8rgsm\u00e5l vil komme, n\u00e5r Rosetta den 10. juli passerer forbi kometen i en afstand af 3.200 km. Kontrolcentret p\u00e5 Jorden finjusterer omhyggeligt rumfart\u00f8jets bane, s\u00e5 det vil kunne sende omkring to timers detaljerede billeder tilbage. Rumfart\u00f8jet vil straks begynde at sende dataene tilbage til Jorden, og de f\u00f8rste billeder vil blive offentliggjort senere samme aften. Rosetta vil derefter s\u00e6tte kursen mod endnu en f\u00f8rste date \u2013 denne gang med kometen Churyumov-Gerasimenko \u2013 hvor det sp\u00e6ndende m\u00f8de forventes at finde sted i 2014.<\/p>","protected":false},"excerpt":{"rendered":"<p>ESA\u2019s Rosetta comet-chaser is heading for a blind date with asteroid Lutetia. Like many first dates, Rosetta will meet Lutetia on a Saturday night. However, no one yet knows what [&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\/2008\/09\/artist_s_impression_of_rosetta_as_it_flies_by_asteroid_steins3\/17896349-2-eng-GB\/Artist_s_impression_of_Rosetta_as_it_flies_by_asteroid_Steins.jpg","esa_banner_description":"Artist\u2019s impression of Rosetta as it flies by asteroid Steins","esa_banner_credit":"ESA, image by C.Carreau","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/09\/Artist_s_impression_of_Rosetta_as_it_flies_by_asteroid_Steins3","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":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1013","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1013","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=1013"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1013\/revisions"}],"predecessor-version":[{"id":4796,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/1013\/revisions\/4796"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=1013"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=1013"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=1013"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=1013"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=1013"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=1013"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=1013"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=1013"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=1013"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=1013"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}