{"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\/et\/europe_prepares_to_map_a_billion_stars\/","title":{"rendered":"Euroopa valmistub kaardistama miljardit t\u00e4hte"},"content":{"rendered":"
\n

K\u00f5igi aegade v\u00f5imsaim t\u00e4hekaardistaja lastakse 19. detsembril \u00f5hku Euroopa kosmosesadamast Prantsuse Guajaanas. Sojuz-rakett viib 2-tonnise kosmoseobservatooriumi, mida tuntakse nimega Gaia, 1,5 miljoni kilomeetri kaugusele Maast. Sealt hakkab see j\u00e4rgmise viie aasta jooksul l\u00e4bi viima meie Linnutee galaktikas asuvate umbes miljardi t\u00e4he loendust.<\/p>\n<\/div>\n

Gaia edastab k\u00f5ige t\u00e4psemad andmed, mida kunagi on saadud nende t\u00e4htede asukoha, liikumise ja heleduse kohta. Iga valitud t\u00e4hte vaadeldakse viieaastase missiooni jooksul umbes 70 korda. See teeb keskmiselt 40 miljonit vaatlust p\u00e4evas! Heledamate objektide (mis on siiski 4000 korda n\u00f5rgemad kui palja silmaga n\u00e4htavad) asukohad kaardistatakse t\u00e4psusega, mis on v\u00f5rreldav inimjuukse l\u00e4bim\u00f5\u00f5du m\u00f5\u00f5tmisega 1000 km kauguselt.<\/p>\n

Selle m\u00e4rkimisv\u00e4\u00e4rse t\u00e4psuse saavutamiseks on Gaial \u00fclitundlik \u201csilm\u201d \u2013 suurim digitaalkamera, mis kunagi kosmosesse on saadetud. See v\u00f5imaldab Gaial avastada objekte, mis on miljon korda n\u00f5rgemad, kui meie silmad suudavad n\u00e4ha. Lisaks on satelliidil kaks optilist teleskoopi ja kolm teaduslikku instrumenti, samuti 10 meetri laiune \u201cseelik\u201d, mis toimib p\u00e4ikesekilbina ja toodab p\u00e4ikeseenergiat.<\/p>\n

\"Andromeda
Andromeda galaktika infrapuna- ja r\u00f6ntgenkiirguses<\/figcaption><\/figure>\n

Gaia peamine \u00fclesanne on luua galaktika 3D-kaart. Samuti loodetakse, et see avastab meie P\u00e4ikeses\u00fcsteemis sadu tuhandeid asteroide ja komeete; k\u00fcmneid tuhandeid \u2018eba\u00f5nnestunud\u2019 t\u00e4hti, mida nimetatakse pruunk\u00e4\u00e4busteks; 20 000 plahvatavat t\u00e4hte, mida nimetatakse supernoovadeks; ning sadu tuhandeid aktiivseid galaktikaid, mida nimetatakse kvasaarideks.<\/p>\n

Gaia avastab ka v\u00e4hemalt 7 000 kaugete t\u00e4htede \u00fcmber tiirlevat planeeti. Selleks tuvastab ta t\u00e4he asukoha pisikesi nihkeid, mis tekivad, kui l\u00e4hedal asuv planeet avaldab t\u00e4hele t\u00f5mbej\u00f5udu. Missiooni l\u00f5puks on Gaia edastanud 1 petabaiti (1 miljon gigabaiti) andmeid, mis mahutaks 200 000 DVD-d.<\/p>","protected":false},"excerpt":{"rendered":"

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 […]<\/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\/et\/wp-json\/wp\/v2\/posts\/623","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=623"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/623\/revisions"}],"predecessor-version":[{"id":4590,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/623\/revisions\/4590"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=623"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=623"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=623"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=623"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=623"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=623"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=623"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}