{"id":367377,"date":"2023-04-02T22:21:47","date_gmt":"2023-04-02T20:21:47","guid":{"rendered":"https:\/\/www.pcnen.com\/portal\/?p=367377"},"modified":"2023-04-02T22:22:12","modified_gmt":"2023-04-02T20:22:12","slug":"astronomi-pronasli-svemirsku-topovsku-kuglu","status":"publish","type":"post","link":"https:\/\/www.pcnen.com\/portal\/2023\/04\/02\/astronomi-pronasli-svemirsku-topovsku-kuglu\/","title":{"rendered":"Astronomi prona\u0161li svemirsku \u2018topovsku kuglu\u2019"},"content":{"rendered":"<p>Utvrdili su da planeta, nazvana TOI-4603b, ima masu od gotovo 13 Jupitera. To zna\u010di da ima gotovo tri puta ve\u0107u gusto\u0107u od Zemlje. A nau\u010dnici su do\u0161li do izra\u010duna da je masa tog planeta gu\u0161\u0107a i od olova, te\u0161kog metala gusto\u0107e 11,3 g\/cm3.<\/p>\n<p>\u201cTo je jedan od najmasovnijih i najgu\u0161\u0107ih do sada poznatih divovskih planeta\u201d, pi\u0161e tim astronoma predvo\u0111en Akanksha Khandelwalom iz Laboratorija za fizi\u010dka istra\u017eivanja u Indiji, navodi Science Alert,<a href=\"https:\/\/www.poslovni.hr\/sci-tech\/pronasli-svemirsku-topovsku-kuglu-divovski-planet-koji-ima-gustocu-vecu-od-olova-4384131\"> prenosi Poslovni.hr.<\/a><\/p>\n<p>Teoretski, postoji ograni\u010denje mase planeta. To je zbog toga \u0161to su, iznad odre\u0111ene kriti\u010dne granice, temperatura i pritisak postavljeni na jezgru dovoljni da zapale nuklearnu fuziju, proces gnje\u010denja atoma kako bi se stvorili te\u017ei elementi.<\/p>\n<p>Za zvijezdu, minimalna masa pri kojoj ovaj proces po\u010dinje je oko 85 Jupitera. U tom trenutku, atomi vodika po\u010dinju se spajati u helijum. Smatra se da je gornja granica mase planeta oko 10 do 13 Jupitera.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Astronomi su prona\u0161li kosmi\u010dku topovsku kuglu. Oko zvijezde udaljene oko 730 svjetlosnih godina kru\u017ei velika egzoplaneta.<\/p>\n","protected":false},"author":1,"featured_media":349787,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-367377","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vijesti"],"_links":{"self":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/367377","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/comments?post=367377"}],"version-history":[{"count":2,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/367377\/revisions"}],"predecessor-version":[{"id":367379,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/367377\/revisions\/367379"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media\/349787"}],"wp:attachment":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media?parent=367377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/categories?post=367377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/tags?post=367377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}