{"id":753,"date":"2012-03-16T14:07:00","date_gmt":"2012-03-16T13:07:00","guid":{"rendered":"https:\/\/kids.esa.int\/near-miss_asteroid_will_return_next_year\/"},"modified":"2026-10-08T00:31:53","modified_gmt":"2026-10-07T22:31:53","slug":"near-miss_asteroid_will_return_next_year","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/near-miss_asteroid_will_return_next_year\/","title":{"rendered":"L\u00e4helt\u00e4 piti -asteroidi palaa ensi vuonna"},"content":{"rendered":"
\n

Kun \u00e4skett\u00e4in l\u00f6ydetty asteroidi viilett\u00e4\u00e4 Maan ohi vuonna 2013, se ohittaa planeettamme \u2013 mutta vain niukasti! T\u00e4m\u00e4n 50 metrin pituisen avaruuskiven odotetaan tulevan l\u00e4hemm\u00e4ksi Maata kuin monet Maata kiert\u00e4vist\u00e4 satelliiteistamme, mik\u00e4 muistuttaa meit\u00e4 siit\u00e4, kuinka t\u00e4rke\u00e4\u00e4 on valvoa avaruudesta tulevia uhkia.<\/p>\n<\/div>\n

Amat\u00f6\u00f6riryhm\u00e4 l\u00f6ysi 22. helmikuuta t\u00e4m\u00e4n ep\u00e4tavallisen asteroidin, joka sai nimekseen 2012 DA14. Sen pienen koon ja kiertoradan vuoksi se havaittiin vasta sen j\u00e4lkeen, kun se oli ohittanut Maan noin seitsem\u00e4nkertaisella et\u00e4isyydell\u00e4 Kuusta.<\/p>\n

Tutkijat ennustavat, ett\u00e4 seuraavalla ohilennollaan, joka on m\u00e4\u00e4r\u00e4 tapahtua 15. helmikuuta 2013, se ohittaa Maan vain 24 000 km:n et\u00e4isyydelt\u00e4 \u2013 l\u00e4hemp\u00e4\u00e4 kuin monet satelliitit. \u201cT\u00e4m\u00e4 on turvallinen et\u00e4isyys, mutta silti riitt\u00e4v\u00e4n l\u00e4hell\u00e4, jotta asteroidi n\u00e4kyy tavallisilla kiikareilla\u201d, sanoo Detlef Koschny, joka ty\u00f6skentelee ESA:n avaruustilanteen seurantaosastolla (SSA).<\/p>\n

Asteroidin l\u00f6ysi La Sagra Sky Survey -observatorio Espanjan kaakkoisosassa, joka on yksi Euroopan pimeimmist\u00e4 ja v\u00e4hiten valosaasteisista paikoista.<\/p>\n

Asteroidin seuraavan ohikulun yhteydess\u00e4 t\u00f6rm\u00e4yst\u00e4 Maahan ei ole pidetty mahdollisena, mutta sen l\u00e4heinen ohikulku auttaa t\u00e4htitieteilij\u00f6it\u00e4 tutkimaan aihetta tarkemmin. Yhdess\u00e4 avaruuss\u00e4\u00e4\u00e4 ja avaruusromua koskevien tietojen kanssa n\u00e4m\u00e4 tiedot auttavat eurooppalaisia tutkijoita ymm\u00e4rt\u00e4m\u00e4\u00e4n ja arvioimaan vaaroja, etenkin jos Maata uhkaava asteroidi joskus l\u00f6ydet\u00e4\u00e4n.<\/p>","protected":false},"excerpt":{"rendered":"

When it whizzes past Earth in 2013, a newly discovered asteroid is going to miss our planet \u2013 but not by much! The 50 m space rock is expected to […]<\/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\/2010\/10\/how_does_lutetia_compare_to_the_other_asteroids_and_comets_visited_by_spacecraft2\/17900828-2-eng-GB\/How_does_Lutetia_compare_to_the_other_asteroids_and_comets_visited_by_spacecraft.png","esa_banner_description":"","esa_banner_credit":"Collage by Planetary Society USA\/E. Lakadawalla.","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/10\/How_does_Lutetia_compare_to_the_other_asteroids_and_comets_visited_by_spacecraft2","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-753","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\/fi\/wp-json\/wp\/v2\/posts\/753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=753"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/753\/revisions"}],"predecessor-version":[{"id":1896,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/753\/revisions\/1896"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=753"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=753"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=753"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=753"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=753"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=753"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=753"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}