{"id":791,"date":"2011-07-12T07:46:00","date_gmt":"2011-07-12T05:46:00","guid":{"rendered":"https:\/\/kids.esa.int\/super-sensitive_space_camera_takes_shape\/"},"modified":"2026-10-08T00:32:18","modified_gmt":"2026-10-07T22:32:18","slug":"super-sensitive_space_camera_takes_shape","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sl\/super-sensitive_space_camera_takes_shape\/","title":{"rendered":"Nastaja izjemno ob\u010dutljiva vesoljska kamera"},"content":{"rendered":"
\n

Najve\u010dja digitalna kamera, ki je bila kdajkoli izdelana za vesoljsko misijo, je bila pred kratkim dokon\u010dana po ve\u010d tednih trdega dela. Ta \u201cmatrika z milijardo pikslov\u201d, sestavljena iz 106 posameznih elektronskih detektorjev, bo slu\u017eila kot izjemno ob\u010dutljivo \u201coko\u201d misije Gaia Evropske vesoljske agencije (ESA) za kartiranje galaksij.<\/p>\n<\/div>\n

Medtem ko lahko \u010dlove\u0161ko oko brez pomo\u010di v jasni no\u010di vidi ve\u010d tiso\u010d zvezd, bo Gaia preu\u010dila milijardo zvezd v na\u0161i galaksiji, Mle\u010dni cesti. V okviru petletne misije, ki se bo za\u010dela leta 2013, bo posredovala doslej najbolj\u0161e podatke o polo\u017eajih in gibanju teh zvezd ter o njihovi svetlosti.<\/p>\n

\"Gaia
Sistem kamer Gaia<\/figcaption><\/figure>\n

Da bi lahko zaznavala zvezde, ki so do milijonkrat \u0161ibkej\u0161e od tistih, ki jih lahko vidi \u010dlove\u0161ko oko, bo sonda Gaia opremljena z nizom CCD-senzorjev (charge-coupled devices), ki so naprednej\u0161e razli\u010dice \u010dipov, uporabljenih v vsakdanjih digitalnih fotoaparatih. Ti pravokotni detektorji, razviti v Veliki Britaniji, so nekoliko manj\u0161i od kreditne kartice \u2013 vsak meri 4,7 x 6 cm \u2013, a tanj\u0161i od \u010dlove\u0161kega lasu!<\/p>\n

Mozaik velikosti 0,5 x 1,0 metra je bil sestavljen v obratu v Toulousu pri glavnem izvajalcu projekta Gaia, podjetju Astrium France. Tehniki so vsak CCD skrbno sestavili, pri \u010demer so med njimi pustili le 1 mm razmika. Delali so v dveh izmenah v strogo nadzorovanih pogojih \u010distega prostora in vsak dan dodali povpre\u010dno \u0161tiri CCD-je, svojo nalogo pa so kon\u010dno zaklju\u010dili 1. junija.<\/p>\n

Kon\u010dana matrika je podobna majhni povr\u0161ini, oblo\u017eeni s plo\u0161\u010dicami, razporejenimi v sedmih vrstah. Ko bodo detektorji v orbiti, bodo vzdr\u017eevani na temperaturi \u2013110 \u00b0C, da se pove\u010da njihova ob\u010dutljivost. Gaia bo delovala na razdalji 1,5 milijona km, na no\u010dni strani Zemlje. Med vrtenjem bosta oba teleskopa sonde Gaia pre\u010desavala nebo in podrobno preu\u010devala vsako zvezdo, ko se bo ta premikala \u010dez njuno vidno polje.<\/p>","protected":false},"excerpt":{"rendered":"

The largest digital camera ever built for a space mission has recently been completed after many weeks of hard work. Made up of 106 separate electronic detectors, the resulting \u201cbillion-pixel […]<\/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\/2010\/12\/gaia2\/17901642-2-eng-GB\/Gaia.jpg","esa_banner_description":"Gaia","esa_banner_credit":"ESA, image by C.Carreau","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2010\/12\/Gaia2","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":[10,11,21],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-791","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-stars-and-galaxies"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/791","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=791"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/791\/revisions"}],"predecessor-version":[{"id":4686,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/791\/revisions\/4686"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=791"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=791"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=791"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=791"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=791"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=791"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=791"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=791"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=791"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=791"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}