{"id":4023,"date":"2026-08-21T15:52:32","date_gmt":"2026-08-21T15:52:32","guid":{"rendered":"https:\/\/astrohodonin.cz\/index.php\/2026\/08\/21\/zrychlene-zabery-hvezdy-s301-obihajici-kolem-cerne-diry-v-centru-galaxie\/"},"modified":"2026-08-21T15:52:33","modified_gmt":"2026-08-21T15:52:33","slug":"zrychlene-zabery-hvezdy-s301-obihajici-kolem-cerne-diry-v-centru-galaxie","status":"publish","type":"post","link":"https:\/\/astrohodonin.cz\/index.php\/2026\/08\/21\/zrychlene-zabery-hvezdy-s301-obihajici-kolem-cerne-diry-v-centru-galaxie\/","title":{"rendered":"Zrychlen\u00e9 z\u00e1b\u011bry hv\u011bzdy S301 ob\u00edhaj\u00edc\u00ed kolem \u010dern\u00e9 d\u00edry v centru Galaxie"},"content":{"rendered":"<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-4023-1\" width=\"640\" height=\"360\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/apod.nasa.gov\/apod\/image\/2608\/eso2612b.mp4?_=1\" \/><a href=\"https:\/\/apod.nasa.gov\/apod\/image\/2608\/eso2612b.mp4\">https:\/\/apod.nasa.gov\/apod\/image\/2608\/eso2612b.mp4<\/a><\/video><\/div>\n<p>Jak\u00e9 to je, krou\u017eit kolem rotuj\u00edc\u00ed supermasivn\u00ed \u010dern\u00e9 d\u00edry?   P\u0159edstaven\u00e9 video je animac\u00ed zachycuj\u00edc\u00ed \u010dasosb\u011brn\u00fd z\u00e1znam \u010dty\u0159 let pozorov\u00e1n\u00ed hv\u011bzdy S301 ob\u00edhaj\u00edc\u00ed kolem Sagittarius A*, \u010dern\u00e9 d\u00edry o hmotnosti 4 milion\u016f slune\u010dn\u00edch hmot v centru na\u0161\u00ed Galaxie.   Hv\u011bzda S301 byla objevena v roce 2023 pomoc\u00ed interferometru Very Large Telescope (VLT) Evropsk\u00e9 ji\u017en\u00ed observato\u0159e, kter\u00fd se nach\u00e1z\u00ed v chilsk\u00e9 pou\u0161ti Atacama.   Astronomov\u00e9 ned\u00e1vno zjistili, \u017ee S301 ob\u00edh\u00e1 kolem \u010dern\u00e9 d\u00edry p\u0159ibli\u017en\u011b za 8,7 roku a dosahuje rychlosti 25 000 km\/s.   K \u010dern\u00e9 d\u00ed\u0159e se p\u0159ibli\u017euje v\u00edce ne\u017e jak\u00e1koli jin\u00e1 dosud objeven\u00e1 hv\u011bzda, a to na vzd\u00e1lenost podobnou t\u00e9, kter\u00e1 odd\u011bluje Saturn od Slunce.   Vzhledem k tomu, \u017ee se S301 dost\u00e1v\u00e1 tak bl\u00edzko k Sagittarius A*, mohla by b\u00fdt vyu\u017eita k p\u0159\u00edm\u00e9mu m\u011b\u0159en\u00ed rychlosti rotace \u010dern\u00e9 d\u00edry a k ov\u011b\u0159en\u00ed Einsteinovy obecn\u00e9 teorie relativity.   Podle t\u00e9to teorie rotuj\u00edc\u00ed \u010dern\u00e1 d\u00edra kolem sebe deformuje strukturu \u010dasoprostoru, \u010d\u00edm\u017e ovliv\u0148uje dr\u00e1hy objekt\u016f v jej\u00ed bl\u00edzkosti.<\/p>\n<p><!-- astropress --><\/p>\n<p>**Credit**: NASA<\/p>\n","protected":false},"excerpt":{"rendered":"<p>https:\/\/apod.nasa.gov\/apod\/image\/2608\/eso2612b.mp4 Jak\u00e9 to je, krou\u017eit kolem rotuj\u00edc\u00ed supermasivn\u00ed \u010dern\u00e9 d\u00edry? P\u0159edstaven\u00e9 video je animac\u00ed zachycuj\u00edc\u00ed \u010dasosb\u011brn\u00fd z\u00e1znam \u010dty\u0159 let pozorov\u00e1n\u00ed hv\u011bzdy S301 ob\u00edhaj\u00edc\u00ed kolem Sagittarius A*, \u010dern\u00e9 d\u00edry o hmotnosti [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4023","post","type-post","status-publish","format-standard","hentry","category-nasa"],"_links":{"self":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/4023","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/comments?post=4023"}],"version-history":[{"count":1,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/4023\/revisions"}],"predecessor-version":[{"id":4024,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/4023\/revisions\/4024"}],"wp:attachment":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media?parent=4023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/categories?post=4023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/tags?post=4023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}