{"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\/et\/new_satellite_to_study_alien_planets\/","title":{"rendered":"Uus satelliit v\u00f5\u00f5raste planeetide uurimiseks"},"content":{"rendered":"
\n

Maalt on m\u00f5nikord n\u00e4ha, kuidas Veenus ja Merkuur liiguvad P\u00e4ikese eest \u00fcle mustadena t\u00e4ppidena. Selliste s\u00fcndmuste \u2013 mida nimetatakse transiitideks \u2013 ajal varjab planeet v\u00e4ikese osa valgusest, mist\u00f5ttu P\u00e4ike tundub veidi tuhmim. Sarnaseid tuhmumisi v\u00f5ivad p\u00f5hjustada ka eksoplaneedid \u2013 maailmad, mis tiirlevad kaugemate t\u00e4htede \u00fcmber. N\u00fc\u00fcd on ESA otsustanud k\u00e4ivitada uue teadusmissiooni, et neid transiite otsida.<\/p>\n<\/div>\n

Missioon, mida tuntakse nimetusega CHEOPS (l\u00fchend s\u00f5nadest CHaracterising ExOPlanets Satellite), k\u00e4ivitatakse eeldatavasti 2017. aastal. Selle sihtm\u00e4rgiks on heledad, l\u00e4hedal asuvad t\u00e4hed, mille \u00fcmber on juba teadaolevalt m\u00f5ned planeedid. Kosmoselaev j\u00e4lgib iga t\u00e4he heledust suure t\u00e4psusega, otsides transiidi tunnusm\u00e4rke.<\/p>\n

\"Planet
Planeedi m\u00f6\u00f6dumine t\u00e4he eest<\/figcaption><\/figure>\n

Saabuva t\u00e4hevalguse muutuste p\u00f5hjalik anal\u00fc\u00fcs v\u00f5imaldab m\u00f5\u00f5ta iga transiitplaneedi l\u00e4bim\u00f5\u00f5tu v\u00e4ga t\u00e4pselt. Teadaoleva massiga planeetide puhul on v\u00f5imalik arvutada nende tihedus, mis annab vihjeid nende sisemise struktuuri kohta.<\/p>\n

Teadmised eksoplaneetide suuruse ja massi kohta aitavad teadlastel m\u00f5ista planeetide tekkimist alates planeetidest, mille mass on m\u00f5ni kord suurem Maa omast \u2013 nn super-Maad \u2013 kuni Neptuunisuurusteni ulatuvate maailmadeni. Samuti v\u00f5imaldab see tuvastada planeete, millel on m\u00e4rkimisv\u00e4\u00e4rne atmosf\u00e4\u00e4r, mis on ideaalsed sihtm\u00e4rgid j\u00e4rgmise p\u00f5lvkonna teleskoopide poolt l\u00e4biviidavateks \u00fcksikasjalikumateks uuringuteks. Nende hulka kuuluvad maapinnal asuv Euroopa \u00e4\u00e4rmiselt suur teleskoop (European Extremely Large Telescope) ja James Webbi kosmoseteleskoop.<\/p>\n

CHEOPSi arendavad ESA ja \u0160veits, osalevad ka m\u00f5ned teised ESA liikmesriigid. Satelliit hakkab tiirlema peaaegu polaarsel orbiidil, umbes 800 km k\u00f5rgusel Maa kohal, ning on t\u00f6\u00f6s 3 \u00bd aastat.<\/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\/et\/wp-json\/wp\/v2\/posts\/705","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=705"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/705\/revisions"}],"predecessor-version":[{"id":4640,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/705\/revisions\/4640"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=705"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=705"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=705"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=705"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=705"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=705"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=705"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}