{"id":66064,"date":"2020-01-17T12:57:40","date_gmt":"2020-01-17T10:57:40","guid":{"rendered":"https:\/\/www.lovendal.ro\/wp52\/?p=66064"},"modified":"2020-01-17T12:57:40","modified_gmt":"2020-01-17T10:57:40","slug":"unde-gravitationale-misterioase-au-fost-detectate-in-jurul-stelei-gigantice-betelgeuse-urmeaza-ca-aceasta-stea-sa-explodeze-si-sa-se-transforme-intr-o-supernova-sa-vedeti-atunci-cum-va-arata-cerul-t","status":"publish","type":"post","link":"https:\/\/www.lovendal.ro\/wp52\/unde-gravitationale-misterioase-au-fost-detectate-in-jurul-stelei-gigantice-betelgeuse-urmeaza-ca-aceasta-stea-sa-explodeze-si-sa-se-transforme-intr-o-supernova-sa-vedeti-atunci-cum-va-arata-cerul-t\/","title":{"rendered":"Unde gravita\u0163ionale misterioase au fost detectate \u00een jurul stelei gigantice Betelgeuse! Urmeaz\u0103 ca aceast\u0103 stea s\u0103 explodeze \u015fi s\u0103 se transforme \u00eentr-o supernov\u0103? S\u0103 vede\u0163i atunci cum va ar\u0103ta cerul Terrei&#8230;"},"content":{"rendered":"<p><a href=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/Betelgeuse-explozie.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-66067\" src=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/Betelgeuse-explozie.jpg\" alt=\"\" width=\"352\" height=\"256\" srcset=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/Betelgeuse-explozie.jpg 352w, https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/Betelgeuse-explozie-300x218.jpg 300w, https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/Betelgeuse-explozie-324x235.jpg 324w\" sizes=\"auto, (max-width: 352px) 100vw, 352px\" \/><\/a>Ce se \u00eent\u00e2mpl\u0103 cu steaua gigantic\u0103 Betelgeuse? Steaua pierde \u00een prezent o cantitate masiv\u0103 de luminozitate, iar astronomii suspecteaz\u0103 c\u0103 urmeaz\u0103 s\u0103 moar\u0103 cu o explozie de supernova uria\u0219\u0103. \u015ei asta deoarece, recent, detectoarele de unde gravita\u021bionale Ligo \u0219i Virgo au \u00eenregistrat \u015fi o \u201eexplozie\u201d nea\u0219teptat\u0103 a undelor gravita\u021bionale.<\/p>\n<p>Mai precis, pe 14 ianuarie 2020 detectoarele au \u00eenregistrat un tip special de und\u0103 gravita\u021bional\u0103 care nu a mai fost \u00eenregistrat\u0103 p\u00e2n\u0103 acum. Oamenii de \u0219tiin\u021b\u0103 b\u0103nuiesc c\u0103 ar putea avea leg\u0103tur\u0103 cu fenomene precum supernovele sau exploziile de raze gamma. Explozia \u00eenregistrat\u0103 a primit numele de &#8222;S200114f&#8221;, astronomii descoperind c\u0103 ea provine din regiunea din apropierea stelei Betelgeuse.<\/p>\n<p>Iat\u0103 ce scrie pe Twitter astronomul Andy Howell:<\/p>\n<blockquote class=\"twitter-tweet\" data-lang=\"en\">\n<p dir=\"ltr\" lang=\"en\">TFW you walk outside to check if Betelgeuse is still there (I just did, it is). <a href=\"https:\/\/t.co\/uJuUMBJsSe\">https:\/\/t.co\/uJuUMBJsSe<\/a><\/p>\n<p>\u2014 Andy Howell (@d_a_howell) <a href=\"https:\/\/twitter.com\/d_a_howell\/status\/1216921660109942784?ref_src=twsrc%5Etfw\">January 14, 2020<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>C\u00e2nd aceast\u0103 zon\u0103 a fost observat\u0103 la \u00eenalt\u0103 rezolu\u021bie, au fost descoperite dou\u0103 anomalii, iar Betelgeuse este localizat\u0103 la mijlocul acestor dou\u0103 anomalii, a\u015fa cum se poate observa \u00een figura de mai jos:<\/p>\n<p><a href=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/anomalia-Betelgeuse.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-66065\" src=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/anomalia-Betelgeuse.jpg\" alt=\"\" width=\"538\" height=\"278\" srcset=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/anomalia-Betelgeuse.jpg 538w, https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/anomalia-Betelgeuse-300x155.jpg 300w\" sizes=\"auto, (max-width: 538px) 100vw, 538px\" \/><\/a>Ce s-ar \u00eent\u00e2mpla dac\u0103 Betelgeuse ar deveni o supernov\u0103? Situat\u0103 la 640 de ani-lumin\u0103 distan\u021b\u0103 fa\u0163\u0103 de noi, s-ar vedea spectaculos de pe Terra. Dup\u0103 un flash orbitor, supernova Betelgeuse ar cre\u015fte \u00een luminozitate, pe cerul Terrei, \u00een c\u00e2teva s\u0103pt\u0103m\u00e2ni, fiind la fel de luminoas\u0103 ca \u015fi Luna (vede\u0163i mai jos). Chiar \u015fi \u00een timpul zilei, supernova ar putea fi observat\u0103.<\/p>\n<p><a href=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/supernova-noaptea.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-66066\" src=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/supernova-noaptea.jpg\" alt=\"\" width=\"539\" height=\"377\" srcset=\"https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/supernova-noaptea.jpg 539w, https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/supernova-noaptea-300x210.jpg 300w, https:\/\/www.lovendal.ro\/wp52\/wp-content\/uploads\/2020\/01\/supernova-noaptea-100x70.jpg 100w\" sizes=\"auto, (max-width: 539px) 100vw, 539px\" \/><\/a> Dar, cu adev\u0103rat, a explodat steaua Betelgeuse? Nu se \u015ftie, fiind posibil s\u0103 fie chiar \u015fi o alarm\u0103 fals\u0103. Dac\u0103 a f\u0103cut-o, acest eveniment a avut loc \u00een urm\u0103 cu cel mult 640 de ani, adic\u0103 de timpul de care are nevoie lumina ca s\u0103 ajung\u0103 pe Terra.<\/p>\n<p>Ceea ce \u0219tim ast\u0103zi este urm\u0103torul lucru: din octombrie 2019 steaua gigantic\u0103 a pierdut o cantitate masiv\u0103 de luminozitate. M\u0103sur\u0103torile luate la mijlocul lunii decembrie 2019 arat\u0103 c\u0103 Betelgeuse nu a fost niciodat\u0103 la fel de slab luminoas\u0103 ca \u00een prezent, spun cercet\u0103torii.<\/p>\n<p>Betelgeuse era \u00een primele 7 stele cele mai str\u0103lucitoare de pe cerul nop\u021bii. Cu toate acestea, cercet\u0103torii localizeaz\u0103 \u00een prezent steaua doar \u00een pozi\u021bia 21 &#8211; a\u0219a de drastic\u0103 este pierderea luminozit\u0103\u021bii. \u0218i temperatura stelei s-a schimbat, spun astronomii; astfel, ei au m\u0103surat cu 150 de grade Kelvin mai pu\u021bin dec\u00e2t \u00een \u200b\u200btimpul luminozit\u0103\u021bii maxime.<\/p>\n<p>Betelgeuse este o stea variabil\u0103 care \u00ee\u0219i schimb\u0103 \u00een mod regulat luminozitatea. Urmeaz\u0103 dou\u0103 cicluri de lumin\u0103: unul are aproximativ 425 de zile, cel\u0103lalt dureaz\u0103 aproximativ 5,9 ani. Faptul c\u0103 Betelgeuse a pierdut at\u00e2ta luminozitate ar putea fi legat de faptul c\u0103 se apropie de minimul ambelor cicluri de lumin\u0103. Sau ar putea \u00eensemna \u0219i c\u0103 supergigantul ro\u0219u Betelgeuse se apropie de sf\u00e2r\u0219itul vie\u0163ii; c\u00e2nd steaua r\u0103m\u00e2ne f\u0103r\u0103 combustibil, \u00eencepe s\u0103 se autodistrug\u0103 &#8211; mai \u00eent\u00e2i pierde luminozitatea \u0219i apoi izbucne\u015fte \u00eentr-o explozie spectaculoas\u0103.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ce se \u00eent\u00e2mpl\u0103 cu steaua gigantic\u0103 Betelgeuse? Steaua pierde \u00een prezent o cantitate masiv\u0103 de luminozitate, iar astronomii suspecteaz\u0103 c\u0103 urmeaz\u0103 s\u0103 moar\u0103 cu o explozie de supernova uria\u0219\u0103. \u015ei asta deoarece, recent, detectoarele de unde gravita\u021bionale Ligo \u0219i Virgo &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Unde gravita\u0163ionale misterioase au fost detectate \u00een jurul stelei gigantice Betelgeuse! Urmeaz\u0103 ca aceast\u0103 stea s\u0103 explodeze \u015fi s\u0103 se transforme \u00eentr-o supernov\u0103? S\u0103 vede\u0163i atunci cum va ar\u0103ta cerul Terrei&#8230;\" class=\"read-more button\" href=\"https:\/\/www.lovendal.ro\/wp52\/unde-gravitationale-misterioase-au-fost-detectate-in-jurul-stelei-gigantice-betelgeuse-urmeaza-ca-aceasta-stea-sa-explodeze-si-sa-se-transforme-intr-o-supernova-sa-vedeti-atunci-cum-va-arata-cerul-t\/#more-66064\" aria-label=\"Cite\u0219te mai multe despre Unde gravita\u0163ionale misterioase au fost detectate \u00een jurul stelei gigantice Betelgeuse! Urmeaz\u0103 ca aceast\u0103 stea s\u0103 explodeze \u015fi s\u0103 se transforme \u00eentr-o supernov\u0103? S\u0103 vede\u0163i atunci cum va ar\u0103ta cerul Terrei&#8230;\">Cititi mai multe<\/a><\/p>\n","protected":false},"author":1,"featured_media":66067,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11039],"tags":[3063,102,1630,952,149,105,2467,733,2317,2358,4474,10198],"class_list":["post-66064","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-astronomie","tag-astronom","tag-astronomie","tag-betelgeuse","tag-lumina","tag-luna","tag-pamant","tag-raze-gamma","tag-stea","tag-supernova","tag-temperatura","tag-twitter","tag-unde-gravitationale"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.3 (Yoast SEO v24.2) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Unde gravita\u0163ionale misterioase au fost detectate \u00een jurul stelei gigantice Betelgeuse! Urmeaz\u0103 ca aceast\u0103 stea s\u0103 explodeze \u015fi s\u0103 se transforme \u00eentr-o supernov\u0103? S\u0103 vede\u0163i atunci cum va ar\u0103ta cerul Terrei... - Secretele lui Lovendal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.lovendal.ro\/wp52\/unde-gravitationale-misterioase-au-fost-detectate-in-jurul-stelei-gigantice-betelgeuse-urmeaza-ca-aceasta-stea-sa-explodeze-si-sa-se-transforme-intr-o-supernova-sa-vedeti-atunci-cum-va-arata-cerul-t\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Unde gravita\u0163ionale misterioase au fost detectate \u00een jurul stelei gigantice Betelgeuse! Urmeaz\u0103 ca aceast\u0103 stea s\u0103 explodeze \u015fi s\u0103 se transforme \u00eentr-o supernov\u0103? 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