{"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\/ro\/new_satellite_to_study_alien_planets\/","title":{"rendered":"Un nou satelit pentru studierea planetelor extraterestre"},"content":{"rendered":"<div class=\"lede\">\n<p>De pe P\u0103m\u00e2nt, putem vedea uneori planeta Venus \u0219i Mercur sub forma unor puncte negre care trec pe fa\u021ba Soarelui. \u00cen timpul acestor evenimente \u2013 numite tranzite \u2013 planeta blocheaz\u0103 o cantitate infim\u0103 de lumin\u0103, f\u0103c\u00e2nd ca Soarele s\u0103 par\u0103 pu\u021bin mai slab luminat. Evenimente similare de diminuare a luminozit\u0103\u021bii pot fi provocate de exoplanete \u2013 lumi care orbiteaz\u0103 \u00een jurul unor stele mai \u00eendep\u0103rtate. Acum, ESA a decis s\u0103 dezvolte o nou\u0103 misiune \u0219tiin\u021bific\u0103 pentru a c\u0103uta aceste tranzite.<\/p>\n<\/div>\n<p>Misiunea, cunoscut\u0103 sub numele de CHEOPS (prescurtare de la CHaracterising ExOPlanets Satellite), urmeaz\u0103 s\u0103 fie lansat\u0103 \u00een 2017. Aceasta va viza stele str\u0103lucitoare \u0219i apropiate, despre care se \u0219tie deja c\u0103 au c\u00e2teva planete care le orbiteaz\u0103. Sonda spa\u021bial\u0103 va monitoriza cu mare precizie luminozitatea fiec\u0103rei stele, c\u0103ut\u00e2nd semnele revelatoare ale unui tranzit.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"537\" data-credit=\"CNES\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2012\/10\/Planet_transit_in_front_of_a_star2\" 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\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2012\/10\/planet_transit_in_front_of_a_star2\/17868969-2-eng-GB\/Planet_transit_in_front_of_a_star.jpg\" alt=\"Planet transit in front of a star\"><figcaption>Tranzitul unei planete \u00een fa\u021ba unei stele<\/figcaption><\/figure>\n<p>O analiz\u0103 detaliat\u0103 a modific\u0103rilor survenite \u00een lumina stelar\u0103 primit\u0103 va permite m\u0103surarea cu mare precizie a diametrului fiec\u0103rei planete \u00een tranzit. \u00cen cazul planetelor cu mas\u0103 cunoscut\u0103, va fi posibil\u0103 calcularea densit\u0103\u021bii acestora, oferind indicii cu privire la structura lor intern\u0103.<\/p>\n<p>Cunoa\u0219terea dimensiunilor \u0219i a maselor exoplanetelor \u00eei va ajuta pe oamenii de \u0219tiin\u021b\u0103 s\u0103 \u00een\u021beleag\u0103 formarea planetelor, de la cele cu o mas\u0103 de c\u00e2teva ori mai mare dec\u00e2t a P\u0103m\u00e2ntului \u2013 \u2019super-P\u0103m\u00e2nturi\u2018 \u2013 p\u00e2n\u0103 la lumi de dimensiunea lui Neptun. De asemenea, se vor identifica planete cu atmosfere de dimensiuni considerabile, care vor constitui \u021binte ideale pentru studii mai detaliate realizate cu ajutorul telescoapelor de nou\u0103 genera\u021bie. Printre acestea se num\u0103r\u0103 Telescopul European Extrem de Mare (EELT), amplasat la sol, \u0219i Telescopul Spa\u021bial James Webb.<\/p>\n<p>CHEOPS este dezvoltat de ESA \u0219i Elve\u021bia, la acest proiect particip\u00e2nd \u0219i alte state membre ale ESA. Satelitul va orbita pe o traiectorie aproape polar\u0103, la aproximativ 800 km deasupra P\u0103m\u00e2ntului, \u0219i va func\u021biona timp de 3 ani \u0219i jum\u0103tate.<\/p>","protected":false},"excerpt":{"rendered":"<p>From Earth, we can sometimes see Venus and Mercury as black spots passing across the Sun. During such events \u2013 called transits &#8211; the planet blocks a tiny amount of [&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\/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\/ro\/wp-json\/wp\/v2\/posts\/705","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=705"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/705\/revisions"}],"predecessor-version":[{"id":4640,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/705\/revisions\/4640"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=705"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=705"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=705"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=705"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=705"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=705"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=705"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}