To, co se na v\u00e1s d\u00edv\u00e1, nen\u00ed kosmick\u00e9 oko, ale Shapley 1, n\u00e1dhern\u011b symetrick\u00e1 planet\u00e1rn\u00ed mlhovina. Shapley 1, zn\u00e1m\u00e1 tak\u00e9 jako Fine Ring Nebula nebo PLN 329+2.1, zdob\u00ed ji\u017en\u00ed oblohu v souhv\u011bzd\u00ed Tesa\u0159ova \u010dtverce (Norma). Mlhovina je v\u00fdsledkem toho, \u017ee hv\u011bzda o hmotnosti podobn\u00e9 Slunci vy\u010derpala sv\u00e9 palivo a odhodila sv\u00e9 vn\u011bj\u0161\u00ed vrstvy. Z\u00e1\u0159iv\u00fd kysl\u00edk z t\u011bchto odhozen\u00fdch vrstev tvo\u0159\u00ed kruhovou svatoz\u00e1\u0159. Jasn\u00fd st\u0159edov\u00fd bod je ve skute\u010dnosti dvojhv\u011bzda: b\u00edl\u00fd trpasl\u00edk, zbytkov\u00e9 j\u00e1dro hv\u011bzdy po odhozen\u00ed vn\u011bj\u0161\u00edch vrstev do vesm\u00edru, a dal\u0161\u00ed hv\u011bzda, kter\u00e9 ob\u00edhaj\u00ed kolem sebe ka\u017ed\u00fdch 2,9 dne. Prstencov\u00fd tvar Shapley 1 je d\u00e1n na\u0161\u00edm pohledem na syst\u00e9m shora dol\u016f a poskytuje vhled do vlivu centr\u00e1ln\u00edch hv\u011bzd na struktury planet\u00e1rn\u00edch mlhovin.<\/p>\n
<\/p>\n
**Credit**: Peter Bresseler;
\nText:
\nKeighley Rockcliffe
\n(NASA
\nGSFC,
\nUMBC
\nCSST,
\nCRESST II)<\/p>\n","protected":false},"excerpt":{"rendered":"
To, co se na v\u00e1s d\u00edv\u00e1, nen\u00ed kosmick\u00e9 oko, ale Shapley 1, n\u00e1dhern\u011b symetrick\u00e1 planet\u00e1rn\u00ed mlhovina. Shapley 1, zn\u00e1m\u00e1 tak\u00e9 jako Fine Ring Nebula nebo PLN 329+2.1, zdob\u00ed ji\u017en\u00ed oblohu […]<\/p>\n","protected":false},"author":1,"featured_media":3738,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3737","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\/3737","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=3737"}],"version-history":[{"count":0,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/3737\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media\/3738"}],"wp:attachment":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media?parent=3737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/categories?post=3737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/tags?post=3737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}