{"id":183,"date":"2021-12-02T12:49:55","date_gmt":"2021-12-02T11:49:55","guid":{"rendered":"https:\/\/kids.esa.int\/shooting_stars2\/"},"modified":"2026-10-08T00:25:13","modified_gmt":"2026-10-07T22:25:13","slug":"shooting_stars2","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/pt\/shooting_stars2\/","title":{"rendered":"Estrelas cadentes"},"content":{"rendered":"<div class=\"lede\">\n<p>Existem v\u00e1rias centenas de cometas que passam a maior parte da sua vida entre os planetas do Sistema Solar interior. Estes cometas deixam para tr\u00e1s muitos rastros de g\u00e1s e poeira.<\/p>\n<\/div>\n<p>Os gr\u00e3os de poeira, do tamanho de gr\u00e3os de areia, colidem por vezes com a camada de ar que envolve a Terra, chamada atmosfera, onde aquecem muito rapidamente. \u00c0 medida que os gr\u00e3os de poeira se queimam, deixam rastos brilhantes de luz no c\u00e9u noturno. Estes rastos s\u00e3o chamados de meteoros, frequentemente apelidados de \u2018estrelas cadentes\u2019 ou \u2018estrelas que caem\u2019.<\/p>\n<p>Numa noite clara, se ficares a olhar para o c\u00e9u durante tempo suficiente, ver\u00e1s um destes meteoros, ou estrelas cadentes. Em certas alturas do ano, a Terra atravessa o rasto de um cometa. O n\u00famero de estrelas cadentes aumenta ent\u00e3o para, talvez, 100 por hora. A isto chama-se \u2018chuva de meteoros\u2019.<\/p>\n<p>Em raras ocasi\u00f5es, sabe-se que as chuvas de meteoros iluminam todo o c\u00e9u. As pessoas que assistiram \u00e0 chuva de Leon\u00eddeas de 1966 ficaram maravilhadas ao ver 40 estrelas cadentes por segundo!<\/p>\n<nav class=\"related\" aria-label=\"Relacionado\">\n<h2 class=\"related__heading\">Relacionado<\/h2>\n<div class=\"grid related__grid\">\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/pt\/stjerneskud\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">dinamarqu\u00eas<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/pt\/vallende_sterren\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">holand\u00eas<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/pt\/sternschnuppen\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">Alem\u00e3o<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/pt\/stjerneskudd\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">noruegu\u00eas<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/pt\/spadajace_gwiazdy\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">polaco<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"\/pt\/fallande_stjaernor\/\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">sueco<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<\/div>\n<\/nav>","protected":false},"excerpt":{"rendered":"<p>There are several hundred comets that spend most of their lives among the planets of the inner Solar System. These comets leave many trails of gas and dust behind them. [&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\/2003\/04\/different_views_of_a_leonid_fireball_in_19662\/17881733-2-eng-GB\/Different_views_of_a_Leonid_fireball_in_1966.jpg","esa_banner_description":"Different views of a Leonid fireball in 1966","esa_banner_credit":"New Mexico State University Observatory, A. Scott Murrell","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/04\/Different_views_of_a_Leonid_fireball_in_19662","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":[46,10,11],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-183","post","type-post","status-publish","format-standard","hentry","category-comets-and-meteors","category-learn","category-our-universe","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/183","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/comments?post=183"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/183\/revisions"}],"predecessor-version":[{"id":1326,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/183\/revisions\/1326"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/media?parent=183"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/categories?post=183"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/tags?post=183"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/panel?post=183"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/language?post=183"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/age?post=183"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/duration?post=183"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/resource_type?post=183"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/audience?post=183"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/wf_post_folders?post=183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}