{"id":261,"date":"2019-12-03T13:07:32","date_gmt":"2019-12-03T12:07:32","guid":{"rendered":"https:\/\/kids.esa.int\/esa_s_cheops_satellite_will_measure_the_sizes_of_exoplanets\/"},"modified":"2026-10-08T00:26:09","modified_gmt":"2026-10-07T22:26:09","slug":"esa_s_cheops_satellite_will_measure_the_sizes_of_exoplanets","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sl\/esa_s_cheops_satellite_will_measure_the_sizes_of_exoplanets\/","title":{"rendered":"Satelit CHEOPS agencije ESA bo meril velikosti eksoplanetov"},"content":{"rendered":"<div class=\"lede\">\n<p>Ste kdaj pogledali v no\u010dno nebo in se spra\u0161evali, ali obstajajo \u0161e drugi planeti tam zunaj, onkraj na\u0161ega Oson\u010dja? Astronomi so ugotovili, da obstajajo! Imenujemo jih zunajson\u010dni planeti ali, na kratko, eksoplaneti. Doslej so jih odkrili na tiso\u010de, to \u0161tevilo pa se bo s nadaljevanjem iskanja le \u0161e pove\u010devalo.<\/p>\n<p>Zelo te\u017eko je posneti dejansko fotografijo eksoplaneta, saj so ti tako dale\u010d stran. Namesto tega astronomi za njihovo odkrivanje uporabljajo razli\u010dne tehnike, na primer opazovanje nihanja zvezd v vesolju, ki ga povzro\u010da gravitacija eksoplanetov v njihovih tirnicah. Ta metoda, skupaj z drugimi, nam ne pomaga le pri iskanju teh planetov, ampak astronomom omogo\u010da tudi izra\u010dun mase eksoplanetov in razdalje, na kateri kro\u017eijo okoli svojih zvezd. Zdaj potrebujemo teleskop, ki je specializiran za ugotavljanje velikosti eksoplanetov. In tu pride v igro CHEOPS!<\/p>\n<\/div>\n<p>Satelit CHEOPS \u2013 s polnim imenom CHaracterising ExOPlanet Satellite \u2013, ki je bil izstreljen decembra 2019, je misija Evropske vesoljske agencije (ESA), namenjena temu, da nam pomaga izvedeti ve\u010d o eksoplanetih. Namesto da bi iskal nove eksoplanete, bo CHEOPS preu\u010deval tiste, ki smo jih \u017ee odkrili in za katere je bila izra\u010dunana masa planeta.<\/p>\n<p>CHEOPS ima visokotehnolo\u0161ki in izjemno ob\u010dutljiv instrument, imenovan fotometer, ki meri intenzivnost svetlobe. Ko eksoplanet preide pred svojo zvezdo in delno zasen\u010di njeno svetlobo, bo CHEOPS izmeril, za koliko se zmanj\u0161a svetlost zvezde. To bo znanstvenikom misije omogo\u010dilo izra\u010dunati velikost eksoplaneta! \u010ce te informacije zdru\u017eimo s podatki o masi, bomo lahko izra\u010dunali gostoto eksoplanetov. To nam bo dalo namige o tem, iz \u010desa so ti planeti sestavljeni. Ali so kamniti svetovi ali plinski velikanji? Ali bi lahko imeli celo velike oceane?<\/p>\n<figure class=\"wp-block-embed is-type-video\"><iframe src=\"https:\/\/www.youtube.com\/embed\/O9wm0IB3LMA\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/figure>\n<figure class=\"wp-block-image size-large\" data-width=\"2500\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2019\/02\/What_kind_of_planets_will_Cheops_study\" 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\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2019\/02\/what_kind_of_planets_will_cheops_study\/19220443-1-eng-GB\/What_kind_of_planets_will_Cheops_study.jpg\" alt=\"What kind of planets will Cheops study?\" \/><figcaption>Kak\u0161ne planete bo Cheops preu\u010deval?<\/figcaption><\/figure>\n<p>Na podlagi teh podatkov bodo znanstveniki lahko sestavili seznam eksoplanetov, pri katerih je najve\u010dja verjetnost, da imajo atmosfero. Ti bodo odli\u010dni cilji za prihodnje astronome, ki bodo za raziskovanje teh oddaljenih svetov uporabljali \u0161e mo\u010dnej\u0161e teleskope in ob\u010dutljivej\u0161e instrumente. Katere skrivnosti bodo odkrili, ko jim bo CHEOPS kazal pot?<\/p>\n<p><i>Zanimiv podatek: fotometer na satelitu CHEOPS je tako ob\u010dutljiv, da lahko preu\u010duje tudi relativno majhne eksoplanete <\/i>\u2013<i>\u00a0velikosti Neptuna! <\/i><\/p>\n<p><b>\u00a0<\/b><\/p>","protected":false},"excerpt":{"rendered":"<p>Have you ever looked up at the night sky and wondered if there are other planets out there, beyond our Solar System? Astronomers have discovered that there are! We call [&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\/2019\/03\/cheops_satellite7\/19318953-2-eng-GB\/Cheops_satellite.jpg","esa_banner_description":"The CHEOPS satellite being tested before launch. It is 1.5 metres long, and weighs 280kg. Copyright: ESA - S. Corvaja","esa_banner_credit":"ESA \u2013 S. Corvaja","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2019\/03\/Cheops_satellite7","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":[14,10,13],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-261","post","type-post","status-publish","format-standard","hentry","category-are-we-alone","category-learn","category-life-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/261","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=261"}],"version-history":[{"count":6,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/261\/revisions"}],"predecessor-version":[{"id":4378,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/261\/revisions\/4378"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=261"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=261"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=261"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=261"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=261"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=261"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=261"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}