{"id":4057,"date":"2026-09-07T15:50:48","date_gmt":"2026-09-07T15:50:48","guid":{"rendered":"https:\/\/astrohodonin.cz\/index.php\/2026\/09\/07\/mlhovina-pelikan-plyn-prach-a-hvezdy\/"},"modified":"2026-09-07T15:50:48","modified_gmt":"2026-09-07T15:50:48","slug":"mlhovina-pelikan-plyn-prach-a-hvezdy","status":"publish","type":"post","link":"https:\/\/astrohodonin.cz\/index.php\/2026\/09\/07\/mlhovina-pelikan-plyn-prach-a-hvezdy\/","title":{"rendered":"Mlhovina Pelik\u00e1n \u2013 plyn, prach a hv\u011bzdy"},"content":{"rendered":"<p>Mlhovina Pelik\u00e1n se pomalu prom\u011b\u0148uje. IC 5070 (ofici\u00e1ln\u00ed ozna\u010den\u00ed) je od v\u011bt\u0161\u00ed mlhoviny Severn\u00ed Amerika odd\u011blena molekul\u00e1rn\u00edm mrakem napln\u011bn\u00fdm tmav\u00fdm prachem. Tento sn\u00edmek s velk\u00fdm rozli\u0161en\u00edm po\u0159\u00edzen\u00fd v Utahu v USA vznikl na z\u00e1klad\u011b 25 hodin expozice a skv\u011ble zachycuje detaily tohoto vl\u00e1knit\u00e9ho prachu. Mlhovina Pelik\u00e1n je p\u0159edm\u011btem intenzivn\u00edho v\u00fdzkumu, proto\u017ee p\u0159edstavuje obzvl\u00e1\u0161t\u011b aktivn\u00ed sm\u011bsici hv\u011bzdotvorby a vyv\u00edjej\u00edc\u00edch se plynov\u00fdch mra\u010den.  Sv\u011btlo mlad\u00fdch energetick\u00fdch hv\u011bzd pomalu p\u0159em\u011b\u0148uje studen\u00fd plyn na hork\u00fd, p\u0159i\u010dem\u017e postupuj\u00edc\u00ed hranice mezi nimi, zn\u00e1m\u00e1 jako ioniza\u010dn\u00ed fronta, je viditeln\u00e1 v jasn\u011b oran\u017eov\u00e9 barv\u011b v prav\u00e9m horn\u00edm rohu. Z\u016fst\u00e1vaj\u00ed zde obzvl\u00e1\u0161t\u011b hust\u00e1 vl\u00e1kna chladn\u00e9ho plynu.  Za miliony let u\u017e mo\u017en\u00e1 nebude mlhovina Pelik\u00e1n, ohrani\u010den\u00e1 tmavou mlhovinou LDN 935, zn\u00e1m\u00e1 jako Pelik\u00e1n, proto\u017ee rovnov\u00e1ha a rozm\u00edst\u011bn\u00ed hv\u011bzd a plynu jist\u011b vytvo\u0159\u00ed n\u011bco, co bude vypadat zcela jinak.   Hlavn\u00ed str\u00e1nka APOD na webu NASA se st\u011bhuje: z apod.nasa.gov na science.nasa.gov\/apod<\/p>\n<p><!-- astropress --><\/p>\n<p>**Credit**: Mark Killion<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mlhovina Pelik\u00e1n se pomalu prom\u011b\u0148uje. IC 5070 (ofici\u00e1ln\u00ed ozna\u010den\u00ed) je od v\u011bt\u0161\u00ed mlhoviny Severn\u00ed Amerika odd\u011blena molekul\u00e1rn\u00edm mrakem napln\u011bn\u00fdm tmav\u00fdm prachem. Tento sn\u00edmek s velk\u00fdm rozli\u0161en\u00edm po\u0159\u00edzen\u00fd v Utahu v [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4058,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4057","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\/4057","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=4057"}],"version-history":[{"count":0,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/4057\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media\/4058"}],"wp:attachment":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media?parent=4057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/categories?post=4057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/tags?post=4057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}