{"id":1127,"date":"2004-11-15T12:50:00","date_gmt":"2004-11-15T11:50:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_sun\/"},"modified":"2026-10-08T00:36:18","modified_gmt":"2026-10-07T22:36:18","slug":"the_sun","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/the_sun\/","title":{"rendered":"Soarele"},"content":{"rendered":"<div class=\"lede\">\n<p>Instrumentele speciale, cunoscute sub numele de spectrografe, ne arat\u0103 c\u0103 Soarele este alc\u0103tuit aproape \u00een \u00eentregime din dou\u0103 gaze: hidrogen \u0219i heliu. Temperatura la suprafa\u021ba sa este de aproximativ 5 500 de grade Celsius \u2013 de peste 20 de ori mai fierbinte dec\u00e2t un cuptor setat la temperatura maxim\u0103. \u00cen centru, temperatura urc\u0103 p\u00e2n\u0103 la aproximativ 15 milioane de grade Celsius, iar gazul este comprimat p\u00e2n\u0103 la o densitate de aproximativ 10 ori mai mare dec\u00e2t cea a plumbului.<\/p>\n<\/div>\n<p>La temperaturi \u0219i presiuni at\u00e2t de ridicate, Soarele devine un reactor nuclear, \u00een care hidrogenul este transformat \u00een heliu. \u00cen acela\u0219i timp, se produc cantit\u0103\u021bi uria\u0219e de radia\u021bii. Acestea ajung la suprafa\u021b\u0103 sub form\u0103 de lumin\u0103 vizibil\u0103, infraro\u0219ie \u0219i ultraviolet\u0103, precum \u0219i de raze X.<\/p>\n<p>La fiecare or\u0103, Soarele arunc\u0103 \u00een spa\u021biu un miliard de tone de gaz, cu o vitez\u0103 de p\u00e2n\u0103 la 2 milioane de km pe or\u0103. Cu toate acestea, Soarele are o mas\u0103 at\u00e2t de mare \u00eenc\u00e2t poate continua s\u0103 ard\u0103 timp de miliarde de ani.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"287\" data-credit=\"G. Perez (IAC)\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/11\/Mysterious_Sun-Earth_climate_link2\" 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\/2004\/11\/mysterious_sun-earth_climate_link2\/17903824-2-eng-GB\/Mysterious_Sun-Earth_climate_link.jpg\" alt=\"Mysterious Sun-Earth climate link\"><\/figure>\n<p>Soarele devine mai activ la fiecare 11 ani. \u00cen astfel de momente, num\u0103rul petelor solare \u00eentunecate de pe suprafa\u021ba sa cre\u0219te. La apogeul ciclului petelor solare, se produc mult mai multe furtuni solare explozive. \u00cen timpul ultimului maxim solar din 2001, numeroase erup\u021bii solare \u0219i ejec\u021bii de mas\u0103 coronal\u0103 au aruncat miliarde de tone de material \u00een spa\u021biu cu vitez\u0103 mare.<\/p>\n<p>Dac\u0103 aceste furtuni se \u00eendreapt\u0103 spre P\u0103m\u00e2nt, pot avea consecin\u021be grave. Ele pot provoca \u00eentreruperi de curent, pot avaria sateli\u021bii \u0219i pot afecta sistemele de comunica\u021bii \u0219i de naviga\u021bie. De asemenea, ele sunt responsabile pentru apari\u021bia aurorelor terestre \u2013 cunoscute \u00een mod obi\u0219nuit sub denumirea de \u201eaurora boreal\u0103\u201d \u0219i \u201eaurora austral\u0103\u201d.<\/p>","protected":false},"excerpt":{"rendered":"<p>Special instruments known as spectrographs tell us that the Sun is made almost entirely of two gases, hydrogen and helium. The temperature at its surface is about 5 500 degrees [&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\/2004\/11\/the_sun2\/17874148-2-eng-GB\/The_Sun.jpg","esa_banner_description":"The Sun","esa_banner_credit":"SOHO\/EIT (ESA & NASA)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/11\/The_Sun2","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":[10,11,35],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1127","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-the-sun","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1127","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=1127"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1127\/revisions"}],"predecessor-version":[{"id":4862,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1127\/revisions\/4862"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=1127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=1127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=1127"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=1127"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=1127"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=1127"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=1127"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=1127"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=1127"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=1127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}