{"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\/ro\/esa_s_cheops_satellite_will_measure_the_sizes_of_exoplanets\/","title":{"rendered":"Satelitul CHEOPS al ESA va m\u0103sura dimensiunile exoplanetelor"},"content":{"rendered":"<div class=\"lede\">\n<p>Te-ai uitat vreodat\u0103 la cerul nop\u021bii \u0219i te-ai \u00eentrebat dac\u0103 exist\u0103 alte planete acolo, dincolo de Sistemul nostru Solar? Astronomii au descoperit c\u0103 exist\u0103! Le numim planete extrasolare sau, pe scurt, exoplanete. P\u00e2n\u0103 acum au fost descoperite mii, iar acest num\u0103r va cre\u0219te pe m\u0103sur\u0103 ce vom continua c\u0103ut\u0103rile.<\/p>\n<p>Este foarte dificil s\u0103 ob\u021binem o fotografie real\u0103 a unei exoplanete, deoarece acestea se afl\u0103 la o distan\u021b\u0103 foarte mare. \u00cen schimb, astronomii folosesc diverse tehnici pentru a le descoperi, cum ar fi observarea oscila\u021biilor stelelor \u00een spa\u021biu, cauzate de gravita\u021bia exoplanetelor care le orbiteaz\u0103. Aceast\u0103 metod\u0103, al\u0103turi de altele, nu numai c\u0103 ne ajut\u0103 s\u0103 g\u0103sim aceste planete, ci le permite astronomilor s\u0103 calculeze masa exoplanetelor \u0219i distan\u021ba la care acestea orbiteaz\u0103 \u00een jurul stelelor lor. Acum avem nevoie de un telescop specializat \u00een determinarea dimensiunilor exoplanetelor. Aici intervine CHEOPS!<\/p>\n<\/div>\n<p>Lansat \u00een decembrie 2019, CHEOPS \u2013 denumirea complet\u0103 fiind CHaracterising ExOPlanet Satellite \u2013 este o misiune a ESA menit\u0103 s\u0103 ne ajute s\u0103 afl\u0103m mai multe despre exoplanete. \u00cen loc s\u0103 caute noi exoplanete, CHEOPS le va studia pe cele pe care le-am descoperit deja \u0219i pentru care s-a calculat masa planetei.<\/p>\n<p>CHEOPS dispune de un instrument de \u00eenalt\u0103 tehnologie \u0219i extrem de sensibil, numit fotometru, care m\u0103soar\u0103 intensitatea luminii. Atunci c\u00e2nd o exoplanet\u0103 trece \u00een fa\u021ba stelei sale \u0219i \u00eei blocheaz\u0103 o parte din lumin\u0103, CHEOPS va m\u0103sura c\u00e2t de mult scade luminozitatea stelei. Acest lucru le va permite oamenilor de \u0219tiin\u021b\u0103 din cadrul misiunii s\u0103 calculeze dimensiunea exoplanetei! Combin\u00e2nd aceste informa\u021bii cu datele privind masa, va fi posibil s\u0103 se determine densitatea exoplanetelor. Acest lucru va oferi indicii cu privire la compozi\u021bia planetelor. Sunt lumi st\u00e2ncoase sau gigan\u021bi gazo\u0219i? Ar putea avea chiar \u0219i oceane \u00eentinse?<\/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>Ce fel de planete va studia Cheops?<\/figcaption><\/figure>\n<p>Pe baza acestor informa\u021bii, oamenii de \u0219tiin\u021b\u0103 vor putea \u00eentocmi o list\u0103 cu exoplanetele care au cele mai mari \u0219anse s\u0103 aib\u0103 atmosfer\u0103. Acestea vor constitui \u021binte excelente pentru viitorii astronomi, care vor folosi telescoape \u0219i mai puternice \u0219i instrumente mai sensibile pentru a studia aceste lumi \u00eendep\u0103rtate. Ce secrete vor descoperi ace\u0219tia, av\u00e2nd CHEOPS ca ghid?<\/p>\n<p><i>Un fapt interesant: fotometrul misiunii CHEOPS este at\u00e2t de sensibil \u00eenc\u00e2t poate studia exoplanete relativ mici <\/i>\u2013<i>\u00a0p\u00e2n\u0103 la dimensiunea lui Neptun! <\/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\/ro\/wp-json\/wp\/v2\/posts\/261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=261"}],"version-history":[{"count":6,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/261\/revisions"}],"predecessor-version":[{"id":4378,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/261\/revisions\/4378"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=261"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=261"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=261"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=261"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=261"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=261"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=261"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}