{"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\/cs\/spacecraft_gaia_satellite_maps_over_a_billion_stars\/","title":{"rendered":"Satelit Gaia zmapoval p\u0159es miliardu hv\u011bzd!"},"content":{"rendered":"<div class=\"lede\">\n<p>Satelit Evropsk\u00e9 kosmick\u00e9 agentury s n\u00e1zvem Gaia str\u00e1vil 22 m\u011bs\u00edc\u016f mapov\u00e1n\u00edm oblohy s dosud nev\u00eddanou p\u0159esnost\u00ed. Astronomov\u00e9 nyn\u00ed na z\u00e1klad\u011b t\u011bchto \u00fadaj\u016f vytvo\u0159ili novou mapu vesm\u00edru, kter\u00e1 zachycuje na\u0161i Ml\u00e9\u010dnou dr\u00e1hu v \u00fa\u017easn\u00fdch detailech!<\/p>\n<\/div>\n<p>Tato nov\u00e1 mapa obsahuje velmi p\u0159esn\u00e1 m\u011b\u0159en\u00ed v\u00edce ne\u017e miliardy hv\u011bzd, v\u010detn\u011b jejich poloh a pohyb\u016f ve vesm\u00edru. Sonda Gaia tak\u00e9 zm\u011b\u0159ila barvy, jas a povrchov\u00e9 teploty n\u011bkter\u00fdch hv\u011bzd. Shrom\u00e1\u017edila dokonce i data o n\u011bkter\u00fdch hv\u011bzd\u00e1ch mimo na\u0161i Galaxii. Bylo zaznamen\u00e1no tak\u00e9 14 000 asteroid\u016f v na\u0161\u00ed Slune\u010dn\u00ed soustav\u011b, co\u017e poskytlo v\u00edce informac\u00ed o t\u011bchto podivn\u00fdch vesm\u00edrn\u00fdch t\u011blesech. Je neuv\u011b\u0159iteln\u00e9, \u017ee Gaia zaznamenala polohy p\u016fl milionu vzd\u00e1len\u00fdch kvasar\u016f, co\u017e jsou jasn\u00e9 galaxie poh\u00e1n\u011bn\u00e9 aktivitou supermasivn\u00edch \u010dern\u00fdch d\u011br v jejich j\u00e1drech!<\/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: obloha v barv\u00e1ch<\/figcaption><\/figure>\n<p>Mise Gaia je zjevn\u011b velmi d\u016fle\u017eit\u00e1, a proto se na p\u0159eveden\u00ed dat ze satelitu do podoby hv\u011bzdn\u00e9 mapy pod\u00edlelo p\u0159ibli\u017en\u011b 450 v\u011bdc\u016f a softwarov\u00fdch in\u017een\u00fdr\u016f. Astronomov\u00e9 z cel\u00e9ho sv\u011bta maj\u00ed nyn\u00ed p\u0159\u00edstup ke v\u0161em t\u011bmto informac\u00edm a jsou z toho nad\u0161eni! Sta\u010dilo jen kr\u00e1tk\u00e9 studium t\u00e9to mapy, aby se zlep\u0161ilo na\u0161e ch\u00e1p\u00e1n\u00ed st\u00e1\u0159\u00ed hv\u011bzd v na\u0161\u00ed Galaxii a toho, jak se hv\u011bzdy pohybuj\u00ed ve vesm\u00edru, co\u017e je z\u00e1sadn\u00ed pro zkoum\u00e1n\u00ed toho, jak hv\u011bzdy vznikaj\u00ed a jak se v pr\u016fb\u011bhu \u010dasu m\u011bn\u00ed.<\/p>\n<p>Nov\u00e1 data byla rovn\u011b\u017e vyu\u017eita k v\u00fdpo\u010dtu ob\u011b\u017en\u00fdch drah 75 kulov\u00fdch hv\u011bzdokup a 12 trpasli\u010d\u00edch galaxi\u00ed, kter\u00e9 ob\u00edhaj\u00ed kolem na\u0161\u00ed Ml\u00e9\u010dn\u00e9 dr\u00e1hy. To n\u00e1m pom\u016f\u017ee studovat Ml\u00e9\u010dnou dr\u00e1hu a jej\u00ed okol\u00ed tak, jak vypad\u00e1 dnes, jak vypadala v minulosti, a p\u0159edpov\u011bd\u011bt, jak bude vypadat v budoucnosti. Jak gravitace ovliv\u0148uje pohyb objekt\u016f ve vesm\u00edru a jak\u00fd vliv m\u00e1 z\u00e1hadn\u00e1 temn\u00e1 hmota? D\u00edky misi Gaia maj\u00ed astronomov\u00e9 k dispozici spoustu nov\u00fdch vod\u00edtek.<\/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>Kosmick\u00e9 m\u011b\u0159\u00edtka zahrnut\u00e1 ve druh\u00e9 sad\u011b dat z mis\u00ed Gaia<\/figcaption><\/figure>\n<p>\u0158editel v\u011bdeck\u00e9ho odd\u011blen\u00ed ESA G\u00fcnther Hasinger uvedl: \u201cPozorov\u00e1n\u00ed z\u00edskan\u00e1 sondou Gaia m\u011bn\u00ed samotn\u00e9 z\u00e1klady astronomie.\u201d Je to opravdu vzru\u0161uj\u00edc\u00ed doba pro v\u0161echny, kdo se zaj\u00edmaj\u00ed o vesm\u00edr! Co n\u00e1m mapa z Gaia pom\u016f\u017ee objevit p\u0159\u00ed\u0161t\u011b?<\/p>\n<p><b>Zaj\u00edmavost:<\/b> N\u011bkter\u00e9 hv\u011bzdy byly zm\u011b\u0159eny s takovou p\u0159esnost\u00ed, jako by pozorovatel ze Zem\u011b dok\u00e1zal na povrchu M\u011bs\u00edce rozeznat eurominci!<\/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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