{"id":727,"date":"2012-06-21T07:48:00","date_gmt":"2012-06-21T05:48:00","guid":{"rendered":"https:\/\/kids.esa.int\/a_near_miss_predicted_for_asteroid_2011_ag5\/"},"modified":"2026-10-08T00:31:36","modified_gmt":"2026-10-07T22:31:36","slug":"a_near_miss_predicted_for_asteroid_2011_ag5","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sv\/a_near_miss_predicted_for_asteroid_2011_ag5\/","title":{"rendered":"En n\u00e4ra f\u00f6rbiflygning f\u00f6rutsp\u00e5s f\u00f6r asteroiden 2011 AG5"},"content":{"rendered":"<div class=\"lede\">\n<p>Alla kan sova lite b\u00e4ttre i natt. De senaste observationerna av en stor rymdsten som passerar n\u00e4ra jorden \u2013 k\u00e4nd som asteroiden 2011 AG5 \u2013 tyder p\u00e5 att den kommer att flyga s\u00e4kert f\u00f6rbi v\u00e5r planet \u00e5r 2040.<\/p>\n<\/div>\n<p>F\u00f6r 65 miljoner \u00e5r sedan utpl\u00e5nade ett asteroidnedslag dinosaurierna. Dessa kallblodiga reptiler kunde dock inte konstruera instrument som kunde \u00f6vervaka de tusentals kosmiska stenar som n\u00e4rmar sig jorden. Utan f\u00f6rvarning fanns det ingenting de kunde g\u00f6ra f\u00f6r att undvika utrotningen.<\/p>\n<p>Lyckligtvis g\u00f6r modern teknik det m\u00f6jligt f\u00f6r oss att h\u00e5lla utkik efter inkommande objekt som kan utg\u00f6ra ett hot mot v\u00e5r existens. Ett speciellt teleskop i Arizona, som s\u00f6ker efter objekt n\u00e4ra jorden, anv\u00e4ndes f\u00f6r att uppt\u00e4cka 2011 AG5 i januari 2011. Flera observatorier \u00f6vervakade sedan den 140 meter breda asteroiden i nio m\u00e5nader innan den r\u00f6rde sig f\u00f6r l\u00e5ngt bort och blev f\u00f6r svag f\u00f6r att kunna ses.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"724\" data-credit=\"NASA\/JPL-Caltech\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/06\/Orbit_and_location_of_asteroid_2011_AG5_as_of_15_June_20122\" 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\/2012\/06\/orbit_and_location_of_asteroid_2011_ag5_as_of_15_june_20122\/17899200-2-eng-GB\/Orbit_and_location_of_asteroid_2011_AG5_as_of_15_June_2012.jpg\" alt=\"Orbit and location of asteroid 2011 AG5 as of 15 June 2012\"><figcaption>Asteroiden 2011 AG5:s bana och position per den 15 juni 2012<\/figcaption><\/figure>\n<p>Observationerna har varit begr\u00e4nsade eftersom asteroiden nu befinner sig bortom Mars bana och p\u00e5 dagshimlen p\u00e5 solens baksida. Under h\u00f6sten 2013 kommer dock f\u00f6rh\u00e5llandena att f\u00f6rb\u00e4ttras, vilket g\u00f6r det m\u00f6jligt f\u00f6r rymd- och markbaserade teleskop att b\u00e4ttre f\u00f6lja dess bana. Vid den tidpunkten kommer 2011 AG5 att befinna sig 147 miljoner kilometer fr\u00e5n jorden, men ha ett gynnsamt l\u00e4ge f\u00f6r observationer p\u00e5 den sena kv\u00e4llshimlen.<\/p>\n<p>Den information som finns tillg\u00e4nglig f\u00f6r n\u00e4rvarande tyder p\u00e5 att det finns en mycket liten risk att den skulle kunna kollidera med jorden \u00e5r 2040. Experter fr\u00e5n hela v\u00e4rlden, d\u00e4ribland ESA, \u00e4r dock \u00f6vertygade om att framtida observationer fr\u00e5n rymden och fr\u00e5n marken kommer att minska denna sannolikhet till n\u00e4stan noll. \u00c4ven om sannolikheten skulle \u00f6ka finns det fortfarande gott om tid att planera och genomf\u00f6ra en rymdmission f\u00f6r att \u00e4ndra asteroidens bana.<\/p>","protected":false},"excerpt":{"rendered":"<p>Everyone can sleep a little better tonight. The latest observations of a large, Earth-grazing space rock &#8211; known as asteroid 2011 AG5 &#8211; suggest that it will fly safely past [&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\/2011\/10\/lutetia_at_closest_approach2\/17872225-2-eng-GB\/Lutetia_at_Closest_approach.jpg","esa_banner_description":"Lutetia at Closest approach","esa_banner_credit":"ESA 2010 MPS for OSIRIS Team MPS\/UPD\/LAM\/IAA\/RSSD\/INTA\/UPM\/DASP\/IDA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2011\/10\/Lutetia_at_Closest_approach2","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-727","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\/sv\/wp-json\/wp\/v2\/posts\/727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/comments?post=727"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/727\/revisions"}],"predecessor-version":[{"id":4653,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/posts\/727\/revisions\/4653"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/media?parent=727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/categories?post=727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/tags?post=727"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/panel?post=727"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/language?post=727"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/age?post=727"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/duration?post=727"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/resource_type?post=727"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/audience?post=727"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sv\/wp-json\/wp\/v2\/wf_post_folders?post=727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}