{"id":705,"date":"2012-10-29T08:57:00","date_gmt":"2012-10-29T07:57:00","guid":{"rendered":"https:\/\/kids.esa.int\/new_satellite_to_study_alien_planets\/"},"modified":"2026-10-08T00:31:20","modified_gmt":"2026-10-07T22:31:20","slug":"new_satellite_to_study_alien_planets","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sl\/new_satellite_to_study_alien_planets\/","title":{"rendered":"Nov satelit za raziskovanje tujih planetov"},"content":{"rendered":"
\n

Z Zemlje v\u010dasih lahko opazimo Venero in Merkur kot \u010drne pike, ki pre\u010dkajo Sonce. Med tak\u0161nimi pojavi \u2013 imenovanimi tranziti \u2013 planet zasen\u010di majhen del svetlobe, zaradi \u010desar se Sonce zdi nekoliko temnej\u0161e. Podobne pojave zatemnitve lahko povzro\u010dajo tudi eksoplaneti \u2013 svetovi, ki kro\u017eijo okoli bolj oddaljenih zvezd. ESA se je zdaj odlo\u010dila, da bo razvila novo znanstveno misijo za iskanje teh tranzitov.<\/p>\n<\/div>\n

Misija, znana pod imenom CHEOPS (kratica za CHaracterising ExOPlanets Satellite), naj bi se za\u010dela leta 2017. Njen cilj bodo svetle, bli\u017enje zvezde, za katere je \u017ee znano, da jih obkro\u017eajo nekateri planeti. Vesoljsko plovilo bo z visoko natan\u010dnostjo spremljalo svetlost vsakega zvezdnega telesa in iskalo zna\u010dilne znake tranzita.<\/p>\n

\"Planet
Prehod planeta pred zvezdo<\/figcaption><\/figure>\n

Podrobna analiza sprememb v prihajajo\u010di zvezdni svetlobi bo omogo\u010dila zelo natan\u010dno merjenje premera vsakega tranzitnega planeta. Za tiste planete, katerih masa je znana, bo mogo\u010de izra\u010dunati njihovo gostoto, kar bo dalo namige o njihovi notranji strukturi.<\/p>\n

Znanje o velikostih in masah eksoplanetov bo znanstvenikom pomagalo razumeti nastanek planetov, od tistih, ki imajo nekajkratno maso Zemlje \u2013 \u2019superzemlje\u2018 \u2013 do svetov velikosti Neptuna. Prav tako bo omogo\u010dilo identifikacijo planetov z obse\u017enimi atmosferami, ki bodo idealni cilji za podrobnej\u0161e \u0161tudije z naslednjo generacijo teleskopov. Mednje sodita zemeljski Evropski izjemno velik teleskop (European Extremely Large Telescope) in vesoljski teleskop James Webb.<\/p>\n

Satelit CHEOPS razvijata ESA in \u0160vica, pri \u010demer sodelujejo tudi nekatere druge dr\u017eave \u010dlanice ESA. Satelit bo kro\u017eil v skoraj polarni orbiti, pribli\u017eno 800 km nad Zemljo, in bo deloval 3 \u00bd leta.<\/p>","protected":false},"excerpt":{"rendered":"

From Earth, we can sometimes see Venus and Mercury as black spots passing across the Sun. During such events \u2013 called transits – the planet blocks a tiny amount of […]<\/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\/2012\/10\/artist_impression_of_cheops2\/17900088-2-eng-GB\/Artist_impression_of_Cheops.jpg","esa_banner_description":"Artist impression of Cheops","esa_banner_credit":"University of Bern","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/10\/Artist_impression_of_Cheops2","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-705","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\/sl\/wp-json\/wp\/v2\/posts\/705","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=705"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/705\/revisions"}],"predecessor-version":[{"id":4640,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/705\/revisions\/4640"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=705"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=705"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=705"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=705"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=705"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=705"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=705"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}