{"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\/et\/esa_s_cheops_satellite_will_measure_the_sizes_of_exoplanets\/","title":{"rendered":"ESA satelliit CHEOPS hakkab m\u00f5\u00f5tma eksoplaneetide suurusi"},"content":{"rendered":"<div class=\"lede\">\n<p>Kas oled kunagi vaadanud \u00f6\u00f6taevasse ja m\u00f5elnud, kas seal v\u00e4ljaspool meie P\u00e4ikeses\u00fcsteemi on veel teisi planeete? Astronoomid on avastanud, et on k\u00fcll! Me nimetame neid P\u00e4ikeses\u00fcsteemiv\u00e4listeks planeetideks ehk l\u00fchidalt eksoplaneetideks. Seni on neid leitud tuhandeid ja see arv kasvab veelgi, kui me otsinguid j\u00e4tkame.<\/p>\n<p>Tegelikku fotot eksoplaneedist on v\u00e4ga raske saada, sest need asuvad nii kaugel. Selle asemel kasutavad astronoomid nende leidmiseks erinevaid meetodeid, n\u00e4iteks j\u00e4lgivad nad, kuidas t\u00e4hed kosmoses k\u00f5iguvad orbiteerivate eksoplaneetide gravitatsiooni m\u00f5jul. See meetod, koos teistega, ei aita meil mitte ainult neid planeete leida, vaid v\u00f5imaldab astronoomidel ka v\u00e4lja arvutada eksoplaneetide massi ja seda, kui kaugel nad oma t\u00e4htedest tiirlevad. N\u00fc\u00fcd vajame teleskoopi, mis on spetsialiseerunud eksoplaneetide suuruse kindlaksm\u00e4\u00e4ramisele. Siin tulebki m\u00e4ngu CHEOPS!<\/p>\n<\/div>\n<p>2019. aasta detsembris orbiidile saadetud CHEOPS \u2013 t\u00e4isnimi CHaracterising ExOPlanet Satellite \u2013 on ESA missioon, mille eesm\u00e4rk on aidata meil eksoplaneete paremini tundma \u00f5ppida. Uute eksoplaneetide otsimise asemel hakkab CHEOPS uurima neid, mida oleme juba avastanud ja mille mass on v\u00e4lja arvutatud.<\/p>\n<p>CHEOPSil on k\u00f5rgtehnoloogiline ja \u00e4\u00e4rmiselt tundlik seade, mida nimetatakse fotomeetriks ja mis m\u00f5\u00f5dab valguse intensiivsust. Kui eksoplaneet liigub oma t\u00e4he eest l\u00e4bi ja varjab osa selle valgusest, m\u00f5\u00f5dab CHEOPS, kui palju t\u00e4he heledus v\u00e4heneb. See v\u00f5imaldab missiooni teadlastel arvutada eksoplaneedi suuruse! Kombineerides seda teavet massiandmetega, on v\u00f5imalik v\u00e4lja arvutada eksoplaneetide tihedus. See annab vihjeid selle kohta, millest planeedid koosnevad. Kas need on kivised maailmad v\u00f5i gaasigigandid? Kas neil v\u00f5iks olla isegi suuri ookeane?<\/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>Milliseid planeete hakkab Cheops uurima?<\/figcaption><\/figure>\n<p>Selle teabe abil saavad teadlased koostada nimekirja eksoplaneetidest, millel on k\u00f5ige t\u00f5en\u00e4olisemalt atmosf\u00e4\u00e4r. Need on suurep\u00e4rased uurimisobjektid tulevastele astronoomidele, kes hakkavad kasutama veelgi v\u00f5imsamaid teleskoope ja tundlikumaid instrumente nende kaugete maailmade uurimiseks. Milliseid saladusi nad avastavad, kui CHEOPS neile teed n\u00e4itab?<\/p>\n<p><i>Huvitav fakt: CHEOPSi fotomeeter on nii tundlik, et sellega on v\u00f5imalik uurida suhteliselt v\u00e4ikeseid eksoplaneete <\/i>\u2013<i>\u00a0kuni Neptuuni suuruseni! <\/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\/et\/wp-json\/wp\/v2\/posts\/261","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=261"}],"version-history":[{"count":6,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/261\/revisions"}],"predecessor-version":[{"id":4378,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/261\/revisions\/4378"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=261"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=261"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=261"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=261"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=261"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=261"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=261"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}