{"id":3727,"date":"2026-02-27T15:54:45","date_gmt":"2026-02-27T15:54:45","guid":{"rendered":"https:\/\/astrohodonin.cz\/index.php\/2026\/02\/27\/sharpless-249-a-mlhovina-meduza\/"},"modified":"2026-02-27T15:54:45","modified_gmt":"2026-02-27T15:54:45","slug":"sharpless-249-a-mlhovina-meduza","status":"publish","type":"post","link":"https:\/\/astrohodonin.cz\/index.php\/2026\/02\/27\/sharpless-249-a-mlhovina-meduza\/","title":{"rendered":"Sharpless 249 a mlhovina Med\u00faza"},"content":{"rendered":"<p>Obvykle slab\u00e1 a nepolapiteln\u00e1 mlhovina Med\u00faza je zachycena v tomto l\u00e1kav\u00e9m teleskopick\u00e9m zorn\u00e9m poli. Mlhovina pluje v mezihv\u011bzdn\u00e9m mo\u0159i a je ukotvena vpravo a vlevo dv\u011bma jasn\u00fdmi hv\u011bzdami, Mu a Eta Geminorum, na \u00fapat\u00ed nebesk\u00fdch dvoj\u010dat. Samotn\u00e1 mlhovina Med\u00faza se nach\u00e1z\u00ed vpravo od st\u0159edu a je vid\u011bt jako jasn\u011bj\u0161\u00ed obloukovit\u00fd h\u0159eben emise s vis\u00edc\u00edmi chapadly. Ve skute\u010dnosti je tato kosmick\u00e1 med\u00faza sou\u010d\u00e1st\u00ed bublinovit\u00e9ho zbytku supernovy IC 443, roz\u0161i\u0159uj\u00edc\u00edho se oblaku trosek z masivn\u00ed hv\u011bzdy, kter\u00e1 explodovala. Sv\u011btlo z exploze poprv\u00e9 dos\u00e1hlo planety Zem\u011b p\u0159ed v\u00edce ne\u017e 30 000 lety. Stejn\u011b jako jej\u00ed p\u0159\u00edbuzn\u00e1 v astrofyzik\u00e1ln\u00edch vod\u00e1ch, zbytek supernovy Krab\u00ed mlhovina, je i mlhovina Med\u00faza zn\u00e1m\u00e1 t\u00edm, \u017ee ukr\u00fdv\u00e1 neutronovou hv\u011bzdu, ultra hust\u00fd zbytek zhroucen\u00e9ho hv\u011bzdn\u00e9ho j\u00e1dra. Emisn\u00ed mlhovina katalogizovan\u00e1 jako Sharpless 249 vypl\u0148uje pole v lev\u00e9m horn\u00edm rohu. Mlhovina Med\u00faza je vzd\u00e1len\u00e1 asi 5 000 sv\u011bteln\u00fdch let. V t\u00e9to vzd\u00e1lenosti by tento obraz m\u011bl pr\u016fm\u011br asi 300 sv\u011bteln\u00fdch let.<\/p>\n<p><!-- astropress --><\/p>\n<p>**Credit**: Katelyn Beecroft<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Obvykle slab\u00e1 a nepolapiteln\u00e1 mlhovina Med\u00faza je zachycena v tomto l\u00e1kav\u00e9m teleskopick\u00e9m zorn\u00e9m poli. Mlhovina pluje v mezihv\u011bzdn\u00e9m mo\u0159i a je ukotvena vpravo a vlevo dv\u011bma jasn\u00fdmi hv\u011bzdami, Mu a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3728,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3727","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\/3727","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=3727"}],"version-history":[{"count":0,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/3727\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media\/3728"}],"wp:attachment":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media?parent=3727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/categories?post=3727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/tags?post=3727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}