{"id":1102,"date":"2006-01-19T11:12:00","date_gmt":"2006-01-19T10:12:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_kuiper_belt\/"},"modified":"2026-10-08T00:36:01","modified_gmt":"2026-10-07T22:36:01","slug":"the_kuiper_belt","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/the_kuiper_belt\/","title":{"rendered":"Centura Kuiper"},"content":{"rendered":"<div class=\"lede\">\n<p>Telescoapele moderne au descoperit sute de obiecte \u00eenghe\u021bate dincolo de orbita lui Neptun, \u00eentr-o regiune cunoscut\u0103 sub numele de Centura Kuiper. Centura poart\u0103 numele lui Gerard Kuiper, un astronom de origine olandez\u0103 care a sugerat, \u00een 1951, c\u0103 unele comete ar putea avea originea \u00een aceast\u0103 regiune.<\/p>\n<\/div>\n<p>Primul obiect din Centura Kuiper a fost descoperit \u00een 1992, dovedind c\u0103 teoria lui Kuiper era corect\u0103. Detectarea lor este dificil\u0103, deoarece sunt foarte slab vizibile \u0219i se mi\u0219c\u0103 extrem de \u00eencet. Aceste obiecte au nevoie de sute de ani pentru a parcurge o orbit\u0103 complet\u0103 \u00een jurul Soarelui.<\/p>\n<p>Obiectele sunt probabil r\u0103m\u0103\u0219i\u021be din perioada form\u0103rii planetelor. Acestea au fost aruncate \u00een aceast\u0103 regiune \u00eendep\u0103rtat\u0103 din exteriorul sistemului solar \u00een urma interac\u021biunilor cu planetele gigantice.<\/p>\n<p>Majoritatea obiectelor sunt mici, av\u00e2nd de obicei o l\u0103\u021bime cuprins\u0103 \u00eentre 10 \u0219i 50 km. P\u00e2n\u0103 de cur\u00e2nd, Pluto era cel mai mare dintre ele, de\u0219i o serie de alte obiecte erau aproape la fel de mari.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"NASA\/JPL - Caltech\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2006\/01\/Xena2\" 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\/2006\/01\/xena2\/17867118-3-eng-GB\/Xena.jpg\" alt=\"Eris\"><figcaption>Eris<\/figcaption><\/figure>\n<p>Apoi, \u00een 2005, a fost descoperit un obiect \u0219i mai mare. Cunoscut sub denumirea de 2003 UB313, oamenii de \u0219tiin\u021b\u0103 i-au dat porecla \u201cXena\u201d (dup\u0103 prin\u021besa r\u0103zboinic\u0103 din serialul TV de succes) p\u00e2n\u0103 c\u00e2nd i-au putut atribui un nume propriu-zis, Eris.<\/p>\n<p>La momentul descoperirii, Eris se afla la o distan\u021b\u0103 de Soare de dou\u0103 ori mai mare dec\u00e2t cea a lui Pluto (97 de distan\u021be Soare-P\u0103m\u00e2nt). Acest lucru a f\u0103cut-o cel mai \u00eendep\u0103rtat obiect observat p\u00e2n\u0103 atunci \u00een Sistemul Solar. De asemenea, orbita sa este \u00eenclinat\u0103 cu 44 de grade, astfel \u00eenc\u00e2t se deplaseaz\u0103 mult deasupra \u0219i dedesubtul traiectoriilor celorlalte planete. S-a descoperit, de asemenea, c\u0103 are o lun\u0103, numit\u0103 Dysnomia.<\/p>\n<p>Nu toat\u0103 lumea este de acord c\u0103 Pluto \u0219i Eris ar trebui considerate a noua \u0219i a zecea planet\u0103 din Sistemul Solar. \u00cen 2006, Uniunea Astronomic\u0103 Interna\u021bional\u0103 le-a clasificat drept \u2018planete pitice\u2019.<\/p>","protected":false},"excerpt":{"rendered":"<p>Modern telescopes have revealed hundreds of icy objects beyond the orbit of Neptune, in a region known as the Kuiper Belt. The Belt is named after Gerard Kuiper, a Dutch-born [&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\/2006\/01\/kuiper_belt2\/17908900-2-eng-GB\/Kuiper_Belt.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2006\/01\/Kuiper_Belt2","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":[10,11,12],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1102","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1102","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=1102"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1102\/revisions"}],"predecessor-version":[{"id":4852,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1102\/revisions\/4852"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=1102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=1102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=1102"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=1102"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=1102"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=1102"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=1102"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=1102"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=1102"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=1102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}