{"id":981,"date":"2008-09-04T07:56:00","date_gmt":"2008-09-04T05:56:00","guid":{"rendered":"https:\/\/kids.esa.int\/rosetta_zooms_past_a_rare_asteroid\/"},"modified":"2026-10-08T00:34:29","modified_gmt":"2026-10-07T22:34:29","slug":"rosetta_zooms_past_a_rare_asteroid","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/rosetta_zooms_past_a_rare_asteroid\/","title":{"rendered":"Rosetta prolet\u011bla kolem vz\u00e1cn\u00e9ho asteroidu"},"content":{"rendered":"<div class=\"lede\">\n<p>Sonda Rosetta Evropsk\u00e9 kosmick\u00e9 agentury (ESA) sm\u011b\u0159uje k setk\u00e1n\u00ed s kometou, k n\u011bmu\u017e dojde v roce 2014. B\u011bhem sv\u00e9 desetilet\u00e9 cesty hlubok\u00fdm vesm\u00edrem Rosetta dvakr\u00e1t nav\u0161t\u00edv\u00ed hlavn\u00ed p\u00e1s asteroid\u016f mezi Marsem a Jupiterem. Jej\u00ed prvn\u00ed historick\u00e9 setk\u00e1n\u00ed s asteroidem se uskute\u010dn\u00ed 5. z\u00e1\u0159\u00ed ve 20:58 SEL\u010c (st\u0159edoevropsk\u00fd letn\u00ed \u010das).<\/p>\n<\/div>\n<p>Od sv\u00e9ho startu v b\u0159eznu 2004 urazila sonda Rosetta p\u0159ibli\u017en\u011b 3 700 milion\u016f km. V sou\u010dasn\u00e9 dob\u011b se nach\u00e1z\u00ed ve vzd\u00e1lenosti od Slunce, kter\u00e1 je v\u00edce ne\u017e dvojn\u00e1sobkem vzd\u00e1lenosti Zem\u011b od Slunce. Sonda ji\u017e dvakr\u00e1t prolet\u011bla kolem Zem\u011b a Marsu, ale jej\u00ed pr\u016flet kolem mal\u00e9ho skalnat\u00e9ho asteroidu jm\u00e9nem Steins p\u0159edstavuje prvn\u00ed skute\u010dnou p\u0159\u00edle\u017eitost k vyu\u017eit\u00ed jej\u00edch v\u011bdeck\u00fdch p\u0159\u00edstroj\u016f.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1323\" data-credit=\"ESA, image by C.Carreau\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2008\/09\/Artist_s_impression_of_asteroid_2867_Steins2\" 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\/2008\/09\/artist_s_impression_of_asteroid_2867_steins2\/17884620-2-eng-GB\/Artist_s_impression_of_asteroid_2867_Steins.jpg\" alt=\"Artist\u2019s impression of asteroid (2867) Steins\"><figcaption>Um\u011bleck\u00e1 p\u0159edstava asteroidu (2867) Steins<\/figcaption><\/figure>\n<p>Rosetta prolet\u00ed kolem Steinsu rychlost\u00ed p\u0159ibli\u017en\u011b 31 000 km za hodinu. Od za\u010d\u00e1tku srpna se sn\u00edmky po\u0159\u00edzen\u00e9 jej\u00edmi kamerami vyu\u017e\u00edvaj\u00ed ke sledov\u00e1n\u00ed Steinsu a ur\u010den\u00ed jeho polohy. D\u00edky tomu bude sonda prolet\u011bt pouh\u00fdch 800 km od sv\u00e9ho c\u00edle. Bohu\u017eel budou dispe\u010de\u0159i v Evropsk\u00e9m centru kosmick\u00fdch operac\u00ed ESA v n\u011bmeck\u00e9m Darmstadtu muset po\u010dkat a\u017e do 22:23 st\u0159edoevropsk\u00e9ho letn\u00edho \u010dasu na prvn\u00ed kontakt s Rosettou a potvrzen\u00ed \u00fasp\u011b\u0161n\u00e9ho pr\u016fletu.<\/p>\n<p>Asteroid Steins byl objeven v roce 1969 a jeho pr\u016fm\u011br \u010din\u00ed pouh\u00fdch n\u011bkolik kilometr\u016f. Pravideln\u00e9 zm\u011bny jeho jasu nazna\u010duj\u00ed, \u017ee se ot\u00e1\u010d\u00ed zhruba jednou za 6 hodin. V\u011bdci se sna\u017e\u00ed o tomto mal\u00e9m sv\u011bt\u011b zjistit co nejv\u00edce, proto\u017ee se jedn\u00e1 o relativn\u011b vz\u00e1cn\u00fd typ asteroidu. Objekty jako Steins jsou poz\u016fstatky z doby vzniku planet p\u0159ed 4,5 miliardami let. Jejich studiem se m\u016f\u017eeme dozv\u011bd\u011bt v\u00edce o vzniku Zem\u011b a ostatn\u00edch planet ve Slune\u010dn\u00ed soustav\u011b.<\/p>","protected":false},"excerpt":{"rendered":"<p>ESA\u2019s Rosetta spacecraft is on its way to a rendezvous with a comet in 2014. During its 10-year trek through deep space, Rosetta will make two visits to the main [&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_steins4\/17900421-2-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_Steins4","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-981","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\/cs\/wp-json\/wp\/v2\/posts\/981","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=981"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/981\/revisions"}],"predecessor-version":[{"id":4773,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/981\/revisions\/4773"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=981"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=981"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=981"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=981"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=981"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=981"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=981"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}