{"id":623,"date":"2013-10-02T11:25:00","date_gmt":"2013-10-02T09:25:00","guid":{"rendered":"https:\/\/kids.esa.int\/europe_prepares_to_map_a_billion_stars\/"},"modified":"2026-10-08T00:30:23","modified_gmt":"2026-10-07T22:30:23","slug":"europe_prepares_to_map_a_billion_stars","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/hu\/europe_prepares_to_map_a_billion_stars\/","title":{"rendered":"Eur\u00f3pa arra k\u00e9sz\u00fcl, hogy egymilli\u00e1rd csillagot t\u00e9rk\u00e9pezzen fel"},"content":{"rendered":"<div class=\"lede\">\n<p>A valaha \u00e9p\u00edtett leger\u0151sebb csillagt\u00e9rk\u00e9p-k\u00e9sz\u00edt\u0151t december 19-\u00e9n ind\u00edtj\u00e1k az eur\u00f3pai \u0171rkik\u00f6t\u0151b\u0151l, Francia Guyan\u00e1b\u00f3l. Egy Szojuz rak\u00e9ta a Gaia n\u00e9vre keresztelt, 2 tonn\u00e1s \u0171robszervat\u00f3riumot 1,5 milli\u00f3 kilom\u00e9terre juttatja a F\u00f6ldt\u0151l. Onnan az elk\u00f6vetkez\u0151 \u00f6t \u00e9vben a Tej\u00fat galaxisban tal\u00e1lhat\u00f3 mintegy egymilli\u00e1rd csillag felm\u00e9r\u00e9s\u00e9t fogja elv\u00e9gezni.<\/p>\n<\/div>\n<p>A Gaia a csillagok helyzet\u00e9r\u0151l, mozg\u00e1s\u00e1r\u00f3l \u00e9s f\u00e9nyess\u00e9g\u00e9r\u0151l valaha gy\u0171jt\u00f6tt legpontosabb adatokat fog visszak\u00fcldeni. Az \u00f6t \u00e9ves k\u00fcldet\u00e9s sor\u00e1n mindegyik kiv\u00e1lasztott csillagot k\u00f6r\u00fclbel\u00fcl 70 alkalommal fogj\u00e1k megfigyelni. Ez \u00e1tlagosan napi 40 milli\u00f3 megfigyel\u00e9st jelent! A f\u00e9nyesebb objektumok (amelyek m\u00e9g \u00edgy is 4000-szer halv\u00e1nyabbak, mint amit szabad szemmel l\u00e1thatunk) helyzet\u00e9t olyan pontoss\u00e1ggal fogj\u00e1k felt\u00e9rk\u00e9pezni, amely ahhoz hasonl\u00edthat\u00f3, mintha 1000 km-es t\u00e1vols\u00e1gb\u00f3l m\u00e9rn\u00e9k meg egy emberi hajsz\u00e1l vastags\u00e1g\u00e1t.<\/p>\n<p>Ennek a figyelemre m\u00e9lt\u00f3 pontoss\u00e1gnak az el\u00e9r\u00e9se \u00e9rdek\u00e9ben a Gaia egy rendk\u00edv\u00fcl \u00e9rz\u00e9keny \u201cszemmel\u201d rendelkezik, amely a valaha az \u0171rbe juttatott legnagyobb digit\u00e1lis f\u00e9nyk\u00e9pez\u0151g\u00e9p. Ez lehet\u0151v\u00e9 teszi a Gaia sz\u00e1m\u00e1ra, hogy olyan objektumokat is \u00e9szleljen, amelyek egymilli\u00f3szor halv\u00e1nyabbak, mint amit a szem\u00fcnkkel l\u00e1thatunk. Ezenk\u00edv\u00fcl k\u00e9t optikai t\u00e1vcs\u0151vel \u00e9s h\u00e1rom tudom\u00e1nyos m\u0171szerrel is rendelkezik, valamint egy 10 m\u00e9ter sz\u00e9les \u201cszokny\u00e1val\u201d, amely napv\u00e9d\u0151k\u00e9nt szolg\u00e1l \u00e9s napenergi\u00e1t termel.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1500\" data-credit=\"ESA\/Herschel\/PACS\/SPIRE\/J.Fritz, U.Gent\/XMM-Newton\/EPIC\/W. Pietsch, MPE\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2011\/12\/Andromeda_Galaxy_in_infrared_and_X-rays2\" 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\/2011\/12\/andromeda_galaxy_in_infrared_and_x-rays2\/17896053-2-eng-GB\/Andromeda_Galaxy_in_infrared_and_X-rays.jpg\" alt=\"Andromeda Galaxy in infrared and X-rays\"><figcaption>Az Androm\u00e9da-galaxis infrav\u00f6r\u00f6s \u00e9s r\u00f6ntgensug\u00e1rban<\/figcaption><\/figure>\n<p>A Gaia f\u0151 feladata a Galaxis h\u00e1romdimenzi\u00f3s t\u00e9rk\u00e9p\u00e9nek elk\u00e9sz\u00edt\u00e9se lesz. Ugyanakkor v\u00e1rhat\u00f3an t\u00f6bb sz\u00e1zezer aszteroid\u00e1t \u00e9s \u00fcst\u00f6k\u00f6st is felfedez majd a Naprendszer\u00fcnkben; t\u00f6bb t\u00edzezer \u2018sikertelen\u2019 csillagot, az \u00fagynevezett barna t\u00f6rp\u00e9ket; 20 000 robban\u00f3 csillagot, az \u00fagynevezett szupern\u00f3v\u00e1kat; valamint t\u00f6bb sz\u00e1zezer akt\u00edv galaxist, az \u00fagynevezett kvaz\u00e1rokat.<\/p>\n<p>A Gaia emellett legal\u00e1bb 7 000, t\u00e1voli csillagok k\u00f6r\u00fcl kering\u0151 bolyg\u00f3t fog felfedezni. Ezt \u00fagy fogja megtenni, hogy \u00e9szleli a csillag helyzet\u00e9nek apr\u00f3 elmozdul\u00e1sait, amikor egy k\u00f6zeli bolyg\u00f3 vonzza a csillagot. A k\u00fcldet\u00e9s v\u00e9g\u00e9re 1 petabyte (1 milli\u00f3 gigabyte) adatot fog visszak\u00fcldeni, ami 200 000 DVD-t t\u00f6lt meg.<\/p>","protected":false},"excerpt":{"rendered":"<p>The most powerful star mapper ever built will be launched from Europe\u2019s spaceport in French Guiana on 19 December. A Soyuz rocket will send the 2 tonne space observatory, known [&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\/2013\/10\/artist_s_impression_of_gaia\/17906940-2-eng-GB\/Artist_s_impression_of_Gaia.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2013\/10\/Artist_s_impression_of_Gaia","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-623","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\/hu\/wp-json\/wp\/v2\/posts\/623","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=623"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/623\/revisions"}],"predecessor-version":[{"id":4590,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/posts\/623\/revisions\/4590"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/media?parent=623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/categories?post=623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/tags?post=623"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/panel?post=623"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/language?post=623"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/age?post=623"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/duration?post=623"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/resource_type?post=623"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/audience?post=623"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/hu\/wp-json\/wp\/v2\/wf_post_folders?post=623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}