$\"Na$ <\/a>
Na tejto dlho exponovanej sn\u00edmke je vidite\u013en\u00e9 cel\u00e9 s\u00fahvezdie Ju\u017en\u00fd kr\u00ed\u017e, farby hviezd aj najv\u00fdraznej\u0161ie objekty. Hmlovina Uho\u013en\u00e9 vrece so z\u00e1padn\u00fdm okrajom le\u017eiacim medzi Mimosou a Acruxom sa zrete\u013ene vyn\u00edma na jasnom pozad\u00ed Mlie\u010dnej cesty. K\u00fasok nad temnou hmlovinou, mierne juhoz\u00e1padne od Mimosy je \u0160perkovnica vidite\u013en\u00e1 ako jasn\u00fd objekt podobn\u00fd hviezde. Ru\u017eovkast\u00e1 oblas\u0165 v pravom spodnom rohu sn\u00edmky je hmlovina Be\u017eiace kura a patr\u00ed do s\u00fahvezdia Centaurus.<\/em><\/p><\/div>\n
NGC 4349 (AR = 12h 25\u2032 18\u201d, DEC = -61\u00b0 58\u2032 32\u201d), NGC 4609 (AR = 12h 43\u2032 09\u201d, DEC = -63\u00b0 02\u2032 27\u201d) a NGC 4103 (AR = 12h 07\u2032 28\u201d, DEC = -61\u00b0 19\u2032 35\u201d) s\u00fa tri otvoren\u00e9 hviezdokopy siedmej magnit\u00fady. NGC 4609 je z nich najjasnej\u0161ia a najkompaktnej\u0161ia.<\/p>\n
Poloha:<\/strong> Podobne ako je na severnej oblohe z\u00e1kladn\u00fdm orienta\u010dn\u00fdm znakom Ve\u013ek\u00fd voz, na ju\u017enej t\u00fato \u00falohu pln\u00ed Ju\u017en\u00fd kr\u00ed\u017e. Nako\u013eko ide o v\u00fdrazn\u00e9, pekne tvarovan\u00e9 s\u00fahvezdie, neh\u013ead\u00e1 sa \u0165a\u017eko. Napriek tomu jestvuje riziko, \u017ee si ho pozorovatelia splet\u00fa s tzv. neprav\u00fdm Ju\u017en\u00fdm kr\u00ed\u017eom, \u010do sa pred storo\u010diami st\u00e1valo n\u00e1morn\u00edkom osudn\u00fdm, ke\u010f sa pod\u013ea neprav\u00e9ho kr\u00ed\u017ea pok\u00fa\u0161ali ur\u010di\u0165 polohu ju\u017en\u00e9ho svetov\u00e9ho p\u00f3lu. Oba kr\u00ed\u017ee, prav\u00fd i neprav\u00fd tvoren\u00fd hviezdami b\u00fdval\u00e9ho s\u00fahvezdia Lo\u010f Argo, le\u017eia na Mlie\u010dnej ceste, tvoria ich \u0161tyri hviezdy a neprav\u00fd m\u00e1 dokonca aj svoju verziu ru\u0161ivej hviezdy\u00a0\u03b5 Crucis, hoci v jeho pr\u00edpade je t\u00e1to hviezda skoro o magnit\u00fadu slab\u0161ia ako skuto\u010dn\u00e1 \u03b5. Je tu ale nieko\u013eko v\u00fdzna\u010dn\u00fdch rozdielov. Prav\u00fd Ju\u017en\u00fd kr\u00ed\u017e le\u017e\u00ed v\u00fdchodnej\u0161ie ako neprav\u00fd. Je men\u0161\u00ed, kompaktnej\u0161\u00ed a jeho prie\u010dny \u201ctr\u00e1m\u201d je vych\u00fdlen\u00fd na opa\u010dn\u00fa stranu, ako u neprav\u00e9ho kr\u00ed\u017ea. V rohu neprav\u00e9ho kr\u00ed\u017ea tie\u017e nen\u00e1jdeme hmlovinu Uho\u013en\u00e9 vrece, no a napokon najd\u00f4le\u017eitej\u0161\u00ed orienta\u010dn\u00fd znak \u2013 na skuto\u010dn\u00fd Ju\u017en\u00fd kr\u00ed\u017e ukazuje spojnica dvojice nezamenite\u013ene jasn\u00fdch hviezd Rigil a Hadar z Centaura.<\/p>\n
Cel\u00e9 s\u00fahvezdie Ju\u017en\u00e9ho kr\u00ed\u017ea je prakticky vklinen\u00e9 do Centaura, pod jeho bruchom \u2013 na v\u00fdchod od neho sa nach\u00e1dzaj\u00fa Centaurove predn\u00e9 nohy, na z\u00e1pad zadn\u00e9. Pozorovate\u013en\u00fd za\u010d\u00edna by\u0165 o k\u00fasok severnej\u0161ie, ako le\u017e\u00ed obratn\u00edk Raka \u2013 od 25. rovnobe\u017eky, v celej kr\u00e1se ho mo\u017eno vidie\u0165 pribli\u017ene od 20. rovnobe\u017eky. Pre obyvate\u013eov ju\u017enej pologule ve\u010der vych\u00e1dza na oblohu najvy\u0161\u0161ie v apr\u00edli a v m\u00e1ji.<\/p>\n
Rozloha v \u0161tvorcov\u00fdch stup\u0148och:<\/strong> 68<\/p>\n
Hrani\u010diace s\u00fahvezdia:<\/strong> Centaurus, Mucha<\/p>\n
<\/p>\n\n\n\n\n\n\n\n\n
\n
Hviezda<\/b><\/p>\n<\/td>\n
\n
\u03b1 <\/b>(RA)<\/b><\/p>\n<\/td>\n
\n
\u03b4 (<\/b>DEC)<\/b><\/p>\n<\/td>\n
\n
Vzdialenos\u0165<\/b><\/p>\n
(ly)<\/b><\/p>\n<\/td>\n
\n
R\u00fdchlos\u0165<\/b><\/p>\n
(km\/s)<\/b><\/p>\n<\/td>\n
\n
M_{v<\/sub><\/b><\/p>\n<\/td>\n}
\n
spektr\u00e1lny typ<\/b><\/p>\n<\/td>\n<\/tr>\n
\n
\u03b1 Acrux<\/p>\n<\/td>\n
\n
12h 27\u2032<\/p>\n<\/td>\n
\n
-63,1\u00b0<\/p>\n<\/td>\n
\n
320<\/p>\n<\/td>\n
<\/td>\n \n
0,8<\/p>\n<\/td>\n
\n
B0 IV + B1 V<\/p>\n<\/td>\n<\/tr>\n
\n
\u03b2 Mimosa<\/p>\n<\/td>\n
\n
12h 48\u2032<\/p>\n<\/td>\n
\n
-59,7\u00b0<\/p>\n<\/td>\n
\n
353<\/p>\n<\/td>\n
<\/td>\n \n
1,2<\/p>\n<\/td>\n
\n
B0 III<\/p>\n<\/td>\n<\/tr>\n
\n
\u03b3 Gacrux<\/p>\n<\/td>\n
\n
12h 31\u2032<\/p>\n<\/td>\n
\n
-57,1\u00b0<\/p>\n<\/td>\n
\n
88<\/p>\n<\/td>\n
<\/td>\n \n
1,6<\/p>\n<\/td>\n
\n
M3 II<\/p>\n<\/td>\n<\/tr>\n
\n
\u03b4<\/p>\n<\/td>\n
\n
12h 15\u2032<\/p>\n<\/td>\n
\n
-58,7\u00b0<\/p>\n<\/td>\n
\n
364<\/p>\n<\/td>\n
<\/td>\n \n
2,8<\/p>\n<\/td>\n
\n
B2 IV<\/p>\n<\/td>\n<\/tr>\n
\n
\u03b5<\/p>\n<\/td>\n
\n
12h 22\u2032<\/p>\n<\/td>\n
\n
-60,5\u00b0<\/p>\n<\/td>\n
\n
228<\/p>\n<\/td>\n
<\/td>\n \n
3,6<\/p>\n<\/td>\n
\n
K3\/K4 III<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
$\"kriz-volnym-okom\"$ <\/a>Vo\u013en\u00fdm okom:<\/em> Ju\u017en\u00fd kr\u00ed\u017e s dvojicou jasn\u00fdch hviezd zo s\u00fahvezdia Centaura le\u017eiacich v\u00fdchodne od neho \u2013 Rigil a Hadar \u2013 ktor\u00e9 na\u0148 ukazuj\u00fa.<\/p>\n
<\/p>\n
$\"mapa-crux\"$ <\/a><\/p>\n
P\u00f4vod obr\u00e1zkov:<\/strong><\/p>\n
\n
Acrux, Gacrux, a panoramatick\u00fd poh\u013ead na Ju\u017en\u00fd kr\u00ed\u017e: Naskies<\/a><\/li>\n
\u0160perkovnica: ESO\/Y. Beletsky<\/li>\n
Ju\u017en\u00fd kr\u00ed\u017e vo\u013en\u00fdm okom: Roberto Mura<\/li>\n
Mapa: Autor<\/li>\n<\/ul>\n
<\/p>\n
Uk\u00e1\u017eky \u010fal\u0161\u00edch s\u00fahvezd\u00ed n\u00e1jdete tu<\/a>.<\/em><\/p>\n
<\/p>\n
\n
Na z\u00e1klade tohto textu vznikli nasledovn\u00e9 \u010dl\u00e1nky:<\/p>\n
\n
Ju\u017en\u00fd kr\u00ed\u017e<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
Uk\u00e1\u017eka s\u00fahvezdia, kapitoly z knihy S\u00fahvezdia od Androm\u00e9dy po \u017dirafu Slovn\u00ed\u010dek Crux (Australis), genit\u00edv Crucis, skratka Cru Bez nads\u00e1dzky mo\u017eno poveda\u0165, \u017ee Ju\u017en\u00fd kr\u00ed\u017e je najzn\u00e1mej\u0161ie s\u00fahvezdie ju\u017enej oblohy. Jeho \u0161tyri ve\u013emi jasn\u00e9 hviezdy utv\u00e1raj\u00fa neprehliadnute\u013en\u00fd obrazec kr\u00ed\u017ea. V strede v\u0161ak neobsahuje nijak\u00fa hviezdu, aby vznikol tvar X podobne ako u tzv. Severn\u00e9ho kr\u00ed\u017ea, asterizmu (pokračovať v čítaní…) <\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":141,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/3454"}],"collection":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3454"}],"version-history":[{"count":9,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/3454\/revisions"}],"predecessor-version":[{"id":3463,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/3454\/revisions\/3463"}],"up":[{"embeddable":true,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/141"}],"wp:attachment":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}

\n Hviezda<\/b><\/p>\n<\/td>\n	\n \u03b1 <\/b>(RA)<\/b><\/p>\n<\/td>\n	\n \u03b4 (<\/b>DEC)<\/b><\/p>\n<\/td>\n	\n Vzdialenos\u0165<\/b><\/p>\n (ly)<\/b><\/p>\n<\/td>\n	\n R\u00fdchlos\u0165<\/b><\/p>\n (km\/s)<\/b><\/p>\n<\/td>\n	\n M_{v<\/sub><\/b><\/p>\n<\/td>\n}	\n spektr\u00e1lny typ<\/b><\/p>\n<\/td>\n<\/tr>\n
\n \u03b1 Acrux<\/p>\n<\/td>\n	\n 12h 27\u2032<\/p>\n<\/td>\n	\n -63,1\u00b0<\/p>\n<\/td>\n	\n 320<\/p>\n<\/td>\n	<\/td>\n	\n 0,8<\/p>\n<\/td>\n	\n B0 IV + B1 V<\/p>\n<\/td>\n<\/tr>\n
\n \u03b2 Mimosa<\/p>\n<\/td>\n	\n 12h 48\u2032<\/p>\n<\/td>\n	\n -59,7\u00b0<\/p>\n<\/td>\n	\n 353<\/p>\n<\/td>\n	<\/td>\n	\n 1,2<\/p>\n<\/td>\n	\n B0 III<\/p>\n<\/td>\n<\/tr>\n
\n \u03b3 Gacrux<\/p>\n<\/td>\n	\n 12h 31\u2032<\/p>\n<\/td>\n	\n -57,1\u00b0<\/p>\n<\/td>\n	\n 88<\/p>\n<\/td>\n	<\/td>\n	\n 1,6<\/p>\n<\/td>\n	\n M3 II<\/p>\n<\/td>\n<\/tr>\n
\n \u03b4<\/p>\n<\/td>\n	\n 12h 15\u2032<\/p>\n<\/td>\n	\n -58,7\u00b0<\/p>\n<\/td>\n	\n 364<\/p>\n<\/td>\n	<\/td>\n	\n 2,8<\/p>\n<\/td>\n	\n B2 IV<\/p>\n<\/td>\n<\/tr>\n
\n \u03b5<\/p>\n<\/td>\n	\n 12h 22\u2032<\/p>\n<\/td>\n	\n -60,5\u00b0<\/p>\n<\/td>\n	\n 228<\/p>\n<\/td>\n	<\/td>\n	\n 3,6<\/p>\n<\/td>\n	\n K3\/K4 III<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n $\"kriz-volnym-okom\"$ <\/a>Vo\u013en\u00fdm okom:<\/em> Ju\u017en\u00fd kr\u00ed\u017e s dvojicou jasn\u00fdch hviezd zo s\u00fahvezdia Centaura le\u017eiacich v\u00fdchodne od neho \u2013 Rigil a Hadar \u2013 ktor\u00e9 na\u0148 ukazuj\u00fa.<\/p>\n <\/p>\n $\"mapa-crux\"$ <\/a><\/p>\n P\u00f4vod obr\u00e1zkov:<\/strong><\/p>\n \n Acrux, Gacrux, a panoramatick\u00fd poh\u013ead na Ju\u017en\u00fd kr\u00ed\u017e: Naskies<\/a><\/li>\n \u0160perkovnica: ESO\/Y. Beletsky<\/li>\n Ju\u017en\u00fd kr\u00ed\u017e vo\u013en\u00fdm okom: Roberto Mura<\/li>\n Mapa: Autor<\/li>\n<\/ul>\n <\/p>\n Uk\u00e1\u017eky \u010fal\u0161\u00edch s\u00fahvezd\u00ed n\u00e1jdete tu<\/a>.<\/em><\/p>\n <\/p>\n \n Na z\u00e1klade tohto textu vznikli nasledovn\u00e9 \u010dl\u00e1nky:<\/p>\n \n Ju\u017en\u00fd kr\u00ed\u017e<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":" Uk\u00e1\u017eka s\u00fahvezdia, kapitoly z knihy S\u00fahvezdia od Androm\u00e9dy po \u017dirafu Slovn\u00ed\u010dek Crux (Australis), genit\u00edv Crucis, skratka Cru Bez nads\u00e1dzky mo\u017eno poveda\u0165, \u017ee Ju\u017en\u00fd kr\u00ed\u017e je najzn\u00e1mej\u0161ie s\u00fahvezdie ju\u017enej oblohy. Jeho \u0161tyri ve\u013emi jasn\u00e9 hviezdy utv\u00e1raj\u00fa neprehliadnute\u013en\u00fd obrazec kr\u00ed\u017ea. V strede v\u0161ak neobsahuje nijak\u00fa hviezdu, aby vznikol tvar X podobne ako u tzv. Severn\u00e9ho kr\u00ed\u017ea, asterizmu (pokračovať v čítaní…) <\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":141,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/3454"}],"collection":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3454"}],"version-history":[{"count":9,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/3454\/revisions"}],"predecessor-version":[{"id":3463,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/3454\/revisions\/3463"}],"up":[{"embeddable":true,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/141"}],"wp:attachment":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}