Na tich\u00e9 louce ve \u0161pan\u011blsk\u00e9 Guadalaja\u0159e stoj\u00ed osam\u011bl\u00fd strom, jeho\u017e silueta se r\u00fdsuje proti souhv\u011bzd\u00ed Labut\u011b, kter\u00e9 se ty\u010d\u00ed nad n\u00edm jako plameny na no\u010dn\u00ed obloze. Tento sn\u00edmek hlubok\u00e9 no\u010dn\u00ed oblohy je slo\u017een z n\u011bkolika expozic, kter\u00e9 odhaluj\u00ed \u0161k\u00e1lu jasu a barev, kterou lidsk\u00e9 oko samo o sob\u011b nedok\u00e1\u017ee zcela zachytit. Souhv\u011bzd\u00ed Labut\u011b, jeho\u017e \u00fahlov\u00e1 velikost p\u0159esahuje tis\u00edcin\u00e1sobek \u00fahlov\u00e9 velikosti \u00fapl\u0148ku, zapaluje oblohu aktivn\u00ed tvorbou hv\u011bzd, kde se mraky plynu a prachu hrout\u00ed pod vlivem gravitace, dokud nedojde k zap\u00e1len\u00ed jadern\u00e9 f\u00faze a zrozen\u00ed nov\u00fdch hv\u011bzd. Tyto hv\u011bzdy ionizuj\u00ed okoln\u00ed vod\u00edkov\u00fd plyn, co\u017e zp\u016fsobuje jeho rud\u00e9 z\u00e1\u0159en\u00ed, zat\u00edmco pram\u00ednky mezihv\u011bzdn\u00e9ho prachu absorbuj\u00ed \u010d\u00e1st tohoto sv\u011btla a vrhaj\u00ed temn\u00e9 st\u00edny p\u0159es oblohu. Labu\u0165 je pokladnic\u00ed nebesk\u00fdch poklad\u016f, zejm\u00e9na mlhovin Veil, Crescent a Pelican, stejn\u011b jako Cygnus X-1, prvn\u00ed potvrzen\u00e9 \u010dern\u00e9 d\u00edry. Labu\u0165 nad\u00e1le p\u0159in\u00e1\u0161\u00ed nov\u00e9 v\u011bdeck\u00e9 poznatky, v\u010detn\u011b nov\u00e9ho trojrozm\u011brn\u00e9ho modelu Cygnus Loop, kter\u00fd umo\u017enila rentgenov\u00e1 observato\u0159 Chandra. T\u00e9m\u011b\u0159 hyperprostor: N\u00e1hodn\u00fd gener\u00e1tor APOD<\/p>\n
<\/p>\n
**Credit**: 2025 Horacio Lander \/ AstroHoracio<\/p>\n
Text:
\nKeighley Rockcliffe
\n(NASA
\nGSFC,
\nUMBC CSST,
\nCRESST II)<\/p>\n","protected":false},"excerpt":{"rendered":"
Na tich\u00e9 louce ve \u0161pan\u011blsk\u00e9 Guadalaja\u0159e stoj\u00ed osam\u011bl\u00fd strom, jeho\u017e silueta se r\u00fdsuje proti souhv\u011bzd\u00ed Labut\u011b, kter\u00e9 se ty\u010d\u00ed nad n\u00edm jako plameny na no\u010dn\u00ed obloze. Tento sn\u00edmek hlubok\u00e9 no\u010dn\u00ed […]<\/p>\n","protected":false},"author":1,"featured_media":3771,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3770","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nasa"],"_links":{"self":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/3770","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=3770"}],"version-history":[{"count":0,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/3770\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media\/3771"}],"wp:attachment":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media?parent=3770"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/categories?post=3770"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/tags?post=3770"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}