{"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\/ro\/spacecraft_gaia_satellite_maps_over_a_billion_stars\/","title":{"rendered":"Satelitul Gaia cartografiaz\u0103 peste un miliard de stele!"},"content":{"rendered":"<div class=\"lede\">\n<p>Un satelit al Agen\u021biei Spa\u021biale Europene, numit Gaia, a petrecut 22 de luni cartografiind cerul cu un nivel de detaliu f\u0103r\u0103 precedent. Acum, astronomii au folosit aceste date pentru a realiza o nou\u0103 hart\u0103 a spa\u021biului care ne dezv\u0103luie Galaxia Calea Lactee cu un nivel de detaliu uimitor!<\/p>\n<\/div>\n<p>Aceast\u0103 nou\u0103 hart\u0103 include m\u0103sur\u0103tori extrem de precise ale a peste un miliard de stele, inclusiv pozi\u021biile \u0219i mi\u0219c\u0103rile acestora \u00een spa\u021biu. Gaia a m\u0103surat, de asemenea, culorile, luminozitatea \u0219i temperaturile de suprafa\u021b\u0103 ale unor stele. A colectat chiar \u0219i date despre unele stele situate dincolo de Galaxia noastr\u0103. Au fost \u00eenregistra\u021bi, de asemenea, 14 000 de asteroizi din Sistemul nostru Solar, oferind mai multe informa\u021bii despre aceste roci ciudate din spa\u021biu. \u00cen mod incredibil, Gaia a \u00eenregistrat pozi\u021biile a jum\u0103tate de milion de quasari \u00eendep\u0103rta\u021bi, care sunt galaxii str\u0103lucitoare alimentate de activitatea g\u0103urilor negre supermasive din centrul lor!<\/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>Cerul lui Gaia \u00een culori<\/figcaption><\/figure>\n<p>Misiunea Gaia este, f\u0103r\u0103 \u00eendoial\u0103, extrem de important\u0103, a\u0219a c\u0103 aproximativ 450 de oameni de \u0219tiin\u021b\u0103 \u0219i ingineri de software au lucrat la transformarea datelor satelitului \u00eentr-o hart\u0103 stelar\u0103. Astronomii din \u00eentreaga lume au acum acces la toate aceste informa\u021bii \u0219i sunt foarte entuziasma\u021bi! Chiar \u0219i o scurt\u0103 perioad\u0103 de studiu al h\u0103r\u021bii a fost suficient\u0103 pentru a ne \u00eembun\u0103t\u0103\u021bi \u00een\u021belegerea v\u00e2rstei stelelor din Galaxia noastr\u0103 \u0219i a modului \u00een care acestea se mi\u0219c\u0103 \u00een spa\u021biu, ceea ce este esen\u021bial pentru a cerceta modul \u00een care stelele se formeaz\u0103 \u0219i se schimb\u0103 \u00een timp.<\/p>\n<p>Noile date au fost utilizate \u0219i pentru a calcula orbitele a 75 de roiuri globulare de stele \u0219i a 12 galaxii pitice, care se rotesc \u00een jurul Galaxiei noastre, Calea Lactee. Acest lucru ne va ajuta s\u0103 studiem Galaxia \u0219i \u00eemprejurimile sale a\u0219a cum sunt \u00een prezent, cum erau \u00een trecut \u0219i s\u0103 prevedem cum vor ar\u0103ta \u00een viitor. Cum influen\u021beaz\u0103 gravita\u021bia mi\u0219carea obiectelor \u00een spa\u021biu \u0219i c\u00e2t de mare este impactul misterioasei materii \u00eentunecate? Astronomii dispun de numeroase indicii noi datorit\u0103 misiunii Gaia.<\/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>Sc\u0103ri cosmice cuprinse \u00een cea de-a doua serie de date publicate de Gaia<\/figcaption><\/figure>\n<p>Directorul \u0219tiin\u021bific al ESA, G\u00fcnther Hasinger, a declarat c\u0103 \u201cobserva\u021biile colectate de Gaia redefinesc fundamentele astronomiei\u201d. Este o perioad\u0103 extrem de interesant\u0103 pentru cei pasiona\u021bi de spa\u021biu! Ce ne va ajuta harta Gaia s\u0103 descoperim \u00een continuare?<\/p>\n<p><b>Un fapt interesant:<\/b> Unele dintre stele au fost m\u0103surate cu aceea\u0219i precizie cu care un observator de pe P\u0103m\u00e2nt ar putea z\u0103ri o moned\u0103 de un euro pe suprafa\u021ba Lunii!<\/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. Ducros, 2013","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/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-189","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\/ro\/wp-json\/wp\/v2\/posts\/189","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=189"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/189\/revisions"}],"predecessor-version":[{"id":4349,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/189\/revisions\/4349"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=189"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=189"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=189"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=189"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=189"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=189"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=189"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=189"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=189"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=189"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}