{"id":923,"date":"2004-11-16T10:04:00","date_gmt":"2004-11-16T09:04:00","guid":{"rendered":"https:\/\/kids.esa.int\/exploring_asteroids\/"},"modified":"2026-10-08T00:33:49","modified_gmt":"2026-10-07T22:33:49","slug":"exploring_asteroids","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/exploring_asteroids\/","title":{"rendered":"Az aszteroid\u00e1k kutat\u00e1sa"},"content":{"rendered":"
\n

A legt\u00f6bb aszteroida olyan kicsi \u00e9s olyan messze van, hogy csak apr\u00f3 f\u00e9nypontokk\u00e9nt l\u00e1thatjuk \u0151ket. Az \u00e9jszakai \u00e9gbolton a \u2018r\u00f6gz\u00edtett csillagok\u2019 el\u0151tt v\u00e9gzett mozg\u00e1suk alapj\u00e1n fedezz\u00fck fel \u0151ket. Nagy teleszk\u00f3pok seg\u00edts\u00e9g\u00e9vel tanulm\u00e1nyozzuk a visszavert f\u00e9ny\u00fcket, \u00e9s \u00edgy tudunk meg r\u00f3luk t\u00f6bbet.<\/p>\n<\/div>\n

M\u00e9g a Hubble \u0171rt\u00e1vcs\u0151 sem k\u00e9pes azonban sokat el\u00e1rulni r\u00f3luk. Az egyik leg\u00e9rdekesebb aszteroida a f\u00e9mben gazdag Vesta. A Hubble felv\u00e9telei egy meglehet\u0151sen k\u00f6r alak\u00fa \u00e9gitestet mutatnak, amelyen egy nagy becsap\u00f3d\u00e1si kr\u00e1ter l\u00e1that\u00f3.<\/p>\n

N\u00e9h\u00e1ny, a F\u00f6ld k\u00f6zel\u00e9ben elhalad\u00f3 aszteroid\u00e1t radarral vizsg\u00e1lt\u00e1k. A radarvisszhangokat nagy r\u00e1di\u00f3teleszk\u00f3pok veszik, \u00e9s ezek seg\u00edts\u00e9g\u00e9vel hat\u00e1rozz\u00e1k meg az aszteroid\u00e1k alakj\u00e1t \u00e9s m\u00e9ret\u00e9t.<\/p>\n

N\u00e9h\u00e1ny aszteroid\u00e1t \u0171rhaj\u00f3k seg\u00edts\u00e9g\u00e9vel m\u00e1r r\u00e9szletesebben is vizsg\u00e1ltak. A k\u00e9peken olyan objektumok l\u00e1that\u00f3k, amelyek sz\u00e1mos kr\u00e1terrel rendelkeznek, ami azt bizony\u00edtja, hogy milli\u00e1rd \u00e9veken \u00e1t \u00fctk\u00f6z\u00e9seknek voltak kit\u00e9ve. 2000-ben a NEAR Shoemaker lett az els\u0151 \u0171reszk\u00f6z, amely p\u00e1ly\u00e1ra \u00e1llt egy aszteroida k\u00f6r\u00fcl. Az \u0171reszk\u00f6z p\u00e1lyafut\u00e1s\u00e1t egy t\u00f6rt\u00e9nelmi jelent\u0151s\u00e9g\u0171 lesz\u00e1ll\u00e1ssal z\u00e1rta az Eroson, az egyik legnagyobb F\u00f6ld-k\u00f6zeli aszteroid\u00e1n.<\/p>\n

Az ESA Rosetta \u0171rszond\u00e1ja a \u00fcst\u00f6k\u00f6s fel\u00e9 tart\u00f3 \u00fatja sor\u00e1n k\u00e9t f\u0151\u00f6vi aszteroid\u00e1t \u2013 a Steinst \u00e9s a Lutetia-t \u2013 is elrep\u00fclt. A mintegy 130 km \u00e1tm\u00e9r\u0151j\u0171 Lutetia volt a legnagyobb aszteroida, amelyet eddig \u0171rszonda l\u00e1togatott meg. Az ESA emellett azt is vizsg\u00e1lja, hogyan lehetne p\u00e1ly\u00e1r\u00f3l let\u00e9r\u00edteni egy F\u00f6ld fel\u00e9 tart\u00f3 aszteroid\u00e1t.<\/p>","protected":false},"excerpt":{"rendered":"

Most asteroids are so small and so far away that we can only see them as tiny points of light. They are found through their movement in front of the […]<\/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\/04\/asteroids_come_in_many_shapes_and_sizes2\/17886580-2-eng-GB\/Asteroids_come_in_many_shapes_and_sizes.jpg","esa_banner_description":"Asteroids come in many shapes and sizes","esa_banner_credit":"courtesy Observatoire de Paris","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Asteroids_come_in_many_shapes_and_sizes2","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":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-923","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/923","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/comments?post=923"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/923\/revisions"}],"predecessor-version":[{"id":2066,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/923\/revisions\/2066"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=923"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=923"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=923"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=923"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=923"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=923"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=923"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=923"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=923"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}