{"id":20,"date":"2009-02-04T08:56:00","date_gmt":"2009-02-04T07:56:00","guid":{"rendered":"https:\/\/kids.esa.int\/cheops_exoplanets\/"},"modified":"2026-10-08T00:23:07","modified_gmt":"2026-10-07T22:23:07","slug":"cheops_exoplanets","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/cheops_exoplanets\/","title":{"rendered":"Exoplanet\u00e1k"},"content":{"rendered":"
\n

A Naprendszer<\/a> amelyben nyolc bolyg\u00f3 kering a helyi csillagunk k\u00f6r\u00fcl, a Nap<\/a>. De tudtad-e, hogy az \u0171rben m\u00e9g rengeteg, rengeteg m\u00e1s bolyg\u00f3 is kering a csillagok<\/a> amiket \u00e9jszaka l\u00e1tunk? Ezeket naprendszeren k\u00edv\u00fcli bolyg\u00f3knak, r\u00f6viden exobolyg\u00f3knak nevezik.<\/p>\n

Az exoplan\u00e9t\u00e1k felfedez\u00e9se rendk\u00edv\u00fcl neh\u00e9z feladat. Olyan messze vannak, hogy nem el\u00e9g egyszer\u0171en csak egy hagyom\u00e1nyos t\u00e1vcs\u0151vel megn\u00e9zni \u0151ket. Ezenk\u00edv\u00fcl nagyon kicsik \u00e9s halv\u00e1nyak azokhoz a csillagokhoz k\u00e9pest, amelyek k\u00f6r\u00fcl keringenek. Ez azt jelenti, hogy az exoplan\u00e9t\u00e1kat kutat\u00f3 csillag\u00e1szoknak \u00fcgyes m\u00f3dszerekre van sz\u00fcks\u00e9g\u00fck!<\/p>\n<\/div>\n

Az els\u0151 m\u00f3dszer, amelyet a csillag\u00e1szok az exoplan\u00e9t\u00e1k felkutat\u00e1s\u00e1ra alkalmaztak, a radi\u00e1lis sebess\u00e9g-m\u00f3dszer, de van egy egyszer\u0171bb beceneve is: a csillag imbolyg\u00e1sa! Amikor egy bolyg\u00f3 egy csillag k\u00f6r\u00fcl kering, a bolyg\u00f3 gravit\u00e1ci\u00f3<\/a> megh\u00fazza a csillagot, ami a mi szemsz\u00f6g\u00fcnkb\u0151l \u00fagy t\u0171nik, mintha a csillag az \u0171rben imbolyogna. A hat\u00e1s csek\u00e9ly, de nagyon \u00e9rz\u00e9keny m\u0171szerek seg\u00edts\u00e9g\u00e9vel lehets\u00e9ges \u00e9szlelni n\u00e9h\u00e1ny olyan exoplan\u00e9t\u00e1t, amelyek csillaguk imbolyg\u00e1s\u00e1t okozz\u00e1k!<\/p>\n

Manaps\u00e1g a tranzitm\u00f3dszer a gyakoribb \u00e9szlel\u00e9si technika. Amikor egy exoplan\u00e9ta elhalad a csillaga el\u0151tt, el\u0151fordulhat, hogy a csillag f\u00e9ny\u00e9nek egy apr\u00f3 r\u00e9sz\u00e9t eltakarja. Ezt nevezz\u00fck tranzitnak. A F\u00f6ldr\u0151l n\u00e9zve a csillag a tranzit ideje alatt kiss\u00e9 halv\u00e1nyabbnak t\u0171nik, majd ism\u00e9t f\u00e9nyesebb\u00e9 v\u00e1lik, amint a bolyg\u00f3 m\u00e1r nem takarja el a f\u00e9nyt. Ez arra utal, hogy egy exobolyg\u00f3 lehet a k\u00f6zelben! A tranzitok \u00e9szlel\u00e9se nagy kih\u00edv\u00e1st jelent, mivel a f\u00e9nyer\u0151ss\u00e9g v\u00e1ltoz\u00e1sa rendk\u00edv\u00fcl csek\u00e9ly, de a bolyg\u00f3keres\u00e9sre specializ\u00e1lt teleszk\u00f3pok, mint p\u00e9ld\u00e1ul az ESA CoRoT<\/a> nagy sikert arattak! Az ESA 2019-es CHEOPS<\/a> A k\u00fcldet\u00e9s a tranzitm\u00f3dszert is alkalmazza.<\/p>\n

\"Transiting
\u00c1thalad\u00f3 exoplan\u00e9ta<\/figcaption><\/figure>\n

Az asztrometria egy m\u00e1sik technika, amelyet az ESA Gaia<\/a> k\u00fcldet\u00e9s. \u00c9jszaka l\u00e1thatjuk, ahogy a csillagok p\u00e1ly\u00e1kon haladnak \u00e1t az \u00e9gen, \u00e9s hossz\u00fa \u00e9vekre el\u0151re rendk\u00edv\u00fcli pontoss\u00e1ggal megj\u00f3solhatjuk helyzet\u00fcket. Ha egy csillagnak van bolyg\u00f3ja, mozg\u00e1sa kiss\u00e9 elt\u00e9r a v\u00e1rt\u00f3l \u2013 csup\u00e1n egy apr\u00f3cska m\u00e9rt\u00e9kben, de ez el\u00e9g ahhoz, hogy a Gaia \u00e9szrevegye!<\/p>\n

Ezek a naprendszeren k\u00edv\u00fcli bolyg\u00f3k felder\u00edt\u00e9s\u00e9nek f\u0151bb m\u00f3dszerei, b\u00e1r l\u00e9teznek m\u00e1s m\u00f3dszerek is. N\u00e9ha ak\u00e1r professzion\u00e1lis obszervat\u00f3riumok seg\u00edts\u00e9g\u00e9vel is lehet f\u00e9nyk\u00e9peket k\u00e9sz\u00edteni \u2013 b\u00e1r ezek a felv\u00e9telek nagyon egyszer\u0171nek t\u0171nnek ahhoz k\u00e9pest, amilyeneket a saj\u00e1t Naprendszer\u00fcnk k\u00f6zeli bolyg\u00f3ir\u00f3l k\u00e9sz\u00edthet\u00fcnk.<\/p>\n

\"Children
A gyerekek elk\u00e9pzelik az exoplan\u00e9t\u00e1kat<\/figcaption><\/figure>\n

Eddig ezeknek a m\u00f3dszereknek a seg\u00edts\u00e9g\u00e9vel t\u00f6bb ezer naprendszeren k\u00edv\u00fcli bolyg\u00f3t fedeztek fel, \u00e9s folyamatosan \u00fajabbakat tal\u00e1lunk. Lehet, hogy ezek k\u00f6z\u00fcl valamelyiken \u00e9let l\u00e9tezik? Tal\u00e1n m\u00e9g intelligens l\u00e9nyek<\/a> Tetszik nektek? Mit gondoltok?<\/p>\n

Az exoplan\u00e9t\u00e1k ir\u00e1nt \u00e9rdekl\u0151d\u0151k sz\u00e1m\u00e1ra ez k\u00e9ts\u00e9gk\u00edv\u00fcl egy nagyon izgalmas id\u0151szak!<\/p>","protected":false},"excerpt":{"rendered":"

The Solar System contains eight planets orbiting our local star, the Sun. But did you know that there are many, many more planets out there in space, orbiting the stars […]<\/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\/2019\/09\/hubble_finds_water_vapor_on_habitable-zone_exoplanet_for_the_first_time\/19700242-1-eng-GB\/Hubble_Finds_Water_Vapor_on_Habitable-Zone_Exoplanet_for_the_First_Time.jpg","esa_banner_description":"We do not yet have the technology to take detailed photos of exoplanets, but an artist created this picture of what one may look like. Copyright: ESA\/Hubble, M. Kornmesser","esa_banner_credit":"ESA\/Hubble, M. Kornmesser","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2019\/09\/Hubble_finds_water_vapor_on_habitable-zone_exoplanet_for_the_first_time","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":[14,10,13],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-20","post","type-post","status-publish","format-standard","hentry","category-are-we-alone","category-learn","category-life-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/20","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=20"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/20\/revisions"}],"predecessor-version":[{"id":4261,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/20\/revisions\/4261"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=20"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=20"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=20"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=20"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=20"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=20"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=20"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=20"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=20"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}