{"id":189,"date":"2021-12-02T12:47:40","date_gmt":"2021-12-02T11:47:40","guid":{"rendered":"https:\/\/kids.esa.int\/spacecraft_gaia_satellite_maps_over_a_billion_stars\/"},"modified":"2026-10-08T00:25:17","modified_gmt":"2026-10-07T22:25:17","slug":"spacecraft_gaia_satellite_maps_over_a_billion_stars","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/spacecraft_gaia_satellite_maps_over_a_billion_stars\/","title":{"rendered":"A Gaia m\u0171hold t\u00f6bb mint egymilli\u00e1rd csillagot t\u00e9rk\u00e9pez fel!"},"content":{"rendered":"<div class=\"lede\">\n<p>Az Eur\u00f3pai \u0170r\u00fcgyn\u00f6ks\u00e9g Gaia nev\u0171 m\u0171holdja 22 h\u00f3napig tartotta nyilv\u00e1n az \u00e9gboltot, eddig soha nem l\u00e1tott r\u00e9szletess\u00e9ggel. Most a csillag\u00e1szok ezeket az adatokat felhaszn\u00e1lva elk\u00e9sz\u00edtettek egy \u00faj \u0171rt\u00e9rk\u00e9pet, amely elk\u00e9peszt\u0151 r\u00e9szletess\u00e9ggel \u00e1br\u00e1zolja a Tej\u00fat galaxisunkat!<\/p>\n<\/div>\n<p>Ez az \u00faj t\u00e9rk\u00e9p t\u00f6bb mint egymilli\u00e1rd csillag rendk\u00edv\u00fcl pontos m\u00e9r\u00e9si adatait tartalmazza, bele\u00e9rtve azok t\u00e9rbeli helyzet\u00e9t \u00e9s mozg\u00e1s\u00e1t is. A Gaia egyes csillagok sz\u00edn\u00e9t, f\u00e9nyess\u00e9g\u00e9t \u00e9s felsz\u00edni h\u0151m\u00e9rs\u00e9klet\u00e9t is megm\u00e9rte. M\u00e9g a Galaxisunkon k\u00edv\u00fcli csillagokr\u00f3l is gy\u0171jt\u00f6tt adatokat. A Naprendszer\u00fcnkben tal\u00e1lhat\u00f3 14 000 aszteroid\u00e1t is r\u00f6gz\u00edtette, \u00edgy tov\u00e1bbi inform\u00e1ci\u00f3kat szolg\u00e1ltatva ezekr\u0151l a furcsa \u0171rszikl\u00e1kr\u00f3l. Hihetetlen, de a Gaia f\u00e9lmilli\u00f3 t\u00e1voli kvaz\u00e1r helyzet\u00e9t is r\u00f6gz\u00edtette \u2013 ezek olyan f\u00e9nyes galaxisok, amelyek magjukban tal\u00e1lhat\u00f3 szupermassz\u00edv fekete lyukak aktivit\u00e1sa t\u00e1pl\u00e1lja \u0151ket!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"4300\" data-credit=\"ESA\/Gaia\/DPAC\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/Gaia_s_sky_in_colour\" 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\/2018\/05\/gaia_s_sky_in_colour\/17897126-2-eng-GB\/Gaia_s_sky_in_colour.jpg\" alt=\"Gaia\u2019s sky in colour\"><figcaption>Gaia sz\u00ednes \u00e9gboltja<\/figcaption><\/figure>\n<p>A Gaia-misszi\u00f3 nyilv\u00e1nval\u00f3an rendk\u00edv\u00fcl fontos, ez\u00e9rt mintegy 450 tud\u00f3s \u00e9s szoftverm\u00e9rn\u00f6k dolgozik azon, hogy a m\u0171hold adataib\u00f3l csillagt\u00e9rk\u00e9pet \u00e1ll\u00edtsanak \u00f6ssze. A vil\u00e1g minden t\u00e1j\u00e1n dolgoz\u00f3 csillag\u00e1szok most m\u00e1r hozz\u00e1f\u00e9rhetnek mindehhez az inform\u00e1ci\u00f3hoz, \u00e9s nagyon izgatottak! M\u00e1r a t\u00e9rk\u00e9p r\u00f6vid ideig tart\u00f3 tanulm\u00e1nyoz\u00e1sa is elegend\u0151 volt ahhoz, hogy jobban meg\u00e9rts\u00fck galaxisunk csillagainak kor\u00e1t, valamint azt, hogyan mozognak a csillagok az \u0171rben, ami elengedhetetlen a csillagok kialakul\u00e1s\u00e1nak \u00e9s id\u0151beli v\u00e1ltoz\u00e1sainak vizsg\u00e1lat\u00e1hoz.<\/p>\n<p>Az \u00faj adatokat arra is felhaszn\u00e1lt\u00e1k, hogy kisz\u00e1m\u00edts\u00e1k 75 g\u00f6mbhalmaz \u00e9s 12 t\u00f6rpe-galaxis p\u00e1ly\u00e1j\u00e1t, amelyek a Tej\u00fat k\u00f6r\u00fcl keringenek. Ez seg\u00edt nek\u00fcnk a Galaxis \u00e9s k\u00f6rnyezet\u00e9nek tanulm\u00e1nyoz\u00e1s\u00e1ban, mind a jelenlegi, mind a m\u00faltbeli \u00e1llapot\u00e1t illet\u0151en, valamint abban, hogy el\u0151re jelezz\u00fck, milyen lesz a j\u00f6v\u0151ben. Hogyan befoly\u00e1solja a gravit\u00e1ci\u00f3 az objektumok mozg\u00e1s\u00e1t az \u0171rben, \u00e9s mekkora hat\u00e1ssal b\u00edr a rejt\u00e9lyes s\u00f6t\u00e9t anyag? A Gaia-nak k\u00f6sz\u00f6nhet\u0151en a csillag\u00e1szok rengeteg \u00faj nyomra bukkantak.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2560\" data-credit=\"ESA, CC BY-SA 3.0 IGO\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/Cosmic_scales_covered_by_Gaia_s_second_data_release\" data-licence=\"CC BY-SA 3.0 IGO or 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\/2018\/05\/cosmic_scales_covered_by_gaia_s_second_data_release\/17874260-2-eng-GB\/Cosmic_scales_covered_by_Gaia_s_second_data_release.jpg\" alt=\"Cosmic scales covered by Gaia\u2019s second data release\"><figcaption>A Gaia m\u00e1sodik adatk\u00f6zl\u00e9s\u00e9ben szerepl\u0151 kozmikus m\u00e9retek<\/figcaption><\/figure>\n<p>G\u00fcnther Hasinger, az ESA tudom\u00e1nyos igazgat\u00f3ja kijelentette: \u201cA Gaia \u00e1ltal gy\u0171jt\u00f6tt megfigyel\u00e9sek \u00fajrafogalmazz\u00e1k a csillag\u00e1szat alapjait.\u201d Nagyon izgalmas id\u0151szak ez azok sz\u00e1m\u00e1ra, akik \u00e9rdekl\u0151dnek az \u0171r ir\u00e1nt! Mit fogunk m\u00e9g felfedezni a Gaia t\u00e9rk\u00e9p\u00e9nek seg\u00edts\u00e9g\u00e9vel?<\/p>\n<p><b>\u00c9rdekes t\u00e9ny:<\/b> N\u00e9h\u00e1ny csillagot olyan pontoss\u00e1ggal m\u00e9rtek meg, mintha egy f\u00f6ldi megfigyel\u0151 k\u00e9pes lenne kisz\u00farni egy eur\u00f3\u00e9rm\u00e9t a Hold felsz\u00edn\u00e9n!<\/p>","protected":false},"excerpt":{"rendered":"<p>A European Space Agency satellite called Gaia has spent 22 months charting the sky in more detail than ever before. Now astronomers have used this data to make a new [&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\/2018\/05\/artist_s_impression_of_gaia\/18247105-2-eng-GB\/Artist_s_impression_of_Gaia.jpg","esa_banner_description":"Artist's impression of Gaia","esa_banner_credit":"ESA\u2013D. 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