{"id":1652,"date":"2015-02-26T12:02:14","date_gmt":"2015-02-26T11:02:14","guid":{"rendered":"http:\/\/www.adhara.sk\/?page_id=1652"},"modified":"2018-09-18T10:44:25","modified_gmt":"2018-09-18T08:44:25","slug":"viete-ze-polarka-nie-je-najjasnejsia-hviezda-oblohy","status":"publish","type":"page","link":"https:\/\/www.adhara.sk\/?page_id=1652","title":{"rendered":"Viete, \u017ee Pol\u00e1rka nie je najjasnej\u0161ia hviezda oblohy?"},"content":{"rendered":"<p><em>Prv\u00fdkr\u00e1t publikovan\u00e9 pravdepodobne v roku 2005 v \u0161kolskom \u010dasopise Gymn\u00e1zia A. Sl\u00e1dkovi\u010da<\/em><\/p>\n<p style=\"text-align: justify;\"><a href=\"http:\/\/www.adhara.sk\/wp-content\/uploads\/2015\/02\/Zoznam-hviezd.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-1654\" src=\"http:\/\/www.adhara.sk\/wp-content\/uploads\/2015\/02\/Zoznam-hviezd.png\" alt=\"Zoznam hviezd\" width=\"380\" height=\"726\" srcset=\"https:\/\/www.adhara.sk\/wp-content\/uploads\/2015\/02\/Zoznam-hviezd.png 424w, https:\/\/www.adhara.sk\/wp-content\/uploads\/2015\/02\/Zoznam-hviezd-157x300.png 157w\" sizes=\"(max-width: 380px) 100vw, 380px\" \/><\/a>Pol\u00e1rka (Severka) nie je pr\u00edli\u0161 jasn\u00e1. Ak by sme zoradili v\u0161etky <a href=\"https:\/\/www.adhara.sk\/?page_id=708\">hviezdy<\/a> na oblohe pod\u013ea jasnosti, zaujala by a\u017e 46. miesto, ako ukazuje aj diagram v\u013eavo. Je to skuto\u010dne ve\u013emi nen\u00e1padn\u00e1 hviezdi\u010dka, ale na oblohe m\u00e1 obrovsk\u00fd v\u00fdznam. Pod\u013ea nej m\u00f4\u017eeme spo\u013eahlivo ur\u010di\u0165 sever, nech sa nach\u00e1dzame hocikde na severnej pologuli. Pol\u00e1rku n\u00e1jdeme tak, \u017ee si pred\u013a\u017eime spojnicu zadn\u00fdch kolies Ve\u013ek\u00e9ho voza asi p\u00e4\u0165kr\u00e1t. Neh\u013eadajme v\u0161ak ni\u010d v\u00fdnimo\u010dne svietiv\u00e9; dokonca aj jedno z kolies Ve\u013ek\u00e9ho voza, hviezda Dubhe, je jasnej\u0161ia ne\u017e ona.<\/p>\n<h3 style=\"text-align: justify;\">Je aj na ju\u017enej pologuli nejak\u00e1 \u201ePol\u00e1rka\u201c, ktor\u00e1 n\u00e1m uk\u00e1\u017ee smer k juhu?<\/h3>\n<p style=\"text-align: justify;\">\u00c1no, je, ale je e\u0161te ove\u013ea slab\u0161ia ako Pol\u00e1rka. Vo\u013en\u00fdm okom ju ledva-ledva uvid\u00edme. Nem\u00e1 dokonca ani len meno, iba ozna\u010denie Sigma Octantis.<\/p>\n<h3 style=\"text-align: justify;\">Ak\u00e1 je teda najjasnej\u0161ia hviezda oblohy?<\/h3>\n<p style=\"text-align: justify;\">No predsa <a href=\"https:\/\/www.adhara.sk\/?page_id=2887\">Slnko<\/a>! Ale ak sa bav\u00edme o no\u010dnej oblohe, tak je to hviezda S\u00edrius. Jej meno znamen\u00e1 v preklade \u201e\u017eiariv\u00e1\u201c a nach\u00e1dza sa v s\u00fahvezd\u00ed Ve\u013ek\u00fd pes, ktor\u00e9 m\u00f4\u017eeme vidie\u0165 v zime. S\u00edrius je 15,6-kr\u00e1t jasnej\u0161\u00ed ne\u017e Pol\u00e1rka.<\/p>\n<p style=\"text-align: justify;\">V\u013eavo vid\u00edme zoznam 50 najjasnej\u0161\u00edch hviezd oblohy. Ak sa chcete o t\u00fdchto hviezdach dozvedie\u0165 nie\u010do viac, napr\u00edklad v akom s\u00fahvezd\u00ed sa nach\u00e1dzaj\u00fa, cho\u010fte na str\u00e1nku <a href=\"http:\/\/objekty.astro.cz\/nase\/2244-seznam-nejjasnejsich-hvezd\" target=\"_blank\" rel=\"noopener\">http:\/\/objekty.astro.cz\/nase\/2244-seznam-nejjasnejsich-hvezd<\/a>. (<em>Pozn. odkaz opraven\u00fd oproti origin\u00e1lu kv\u00f4li zmene adresy str\u00e1nky.<\/em>)<\/p>\n<hr \/>\n<ul>\n<li style=\"text-align: justify;\">Viac o Pol\u00e1rke v \u010dl\u00e1nku <a href=\"http:\/\/www.adhara.sk\/?page_id=213\">Mal\u00fd medve\u010f <\/a><\/li>\n<li style=\"text-align: justify;\">Viac o Ve\u013ekom voze v \u010dl\u00e1nku <a href=\"http:\/\/www.adhara.sk\/?page_id=1232\">Ve\u013ek\u00e1 medvedica <\/a><\/li>\n<\/ul>\n<h1>Oznam pre \u010ditate\u013eov<\/h1>\n<h4 style=\"text-align: justify;\">Mil\u00ed \u010ditatelia,<br \/>\nstr\u00e1nka, ktor\u00fa m\u00e1te otvoren\u00fa, je dlhoro\u010dne naj\u010d\u00edtanej\u0161ia spomedzi vy\u0161e 340 \u010dl\u00e1nkov servera adhara.sk. Sna\u017e\u00edm sa pr\u00eds\u0165 na to, pre\u010do jej d\u00e1vate prednos\u0165 pred in\u00fdmi kvalitnej\u0161\u00edmi a podrobnej\u0161\u00edmi \u010dl\u00e1nkami tohto webu. Pros\u00edm, zanechajte mi v koment\u00e1ri spr\u00e1vu, ako a pre\u010do ste sa sem dostali. \u010eakujem.<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Prv\u00fdkr\u00e1t publikovan\u00e9 pravdepodobne v roku 2005 v \u0161kolskom \u010dasopise Gymn\u00e1zia A. Sl\u00e1dkovi\u010da Pol\u00e1rka (Severka) nie je pr\u00edli\u0161 jasn\u00e1. Ak by sme zoradili v\u0161etky hviezdy na oblohe pod\u013ea jasnosti, zaujala by a\u017e 46. miesto, ako ukazuje aj diagram v\u013eavo. Je to skuto\u010dne ve\u013emi nen\u00e1padn\u00e1 hviezdi\u010dka, ale na oblohe m\u00e1 obrovsk\u00fd v\u00fdznam. Pod\u013ea nej m\u00f4\u017eeme spo\u013eahlivo ur\u010di\u0165<span class=\"more-excerpt\"><a class=\"more-excerpt-link\" href=\"https:\/\/www.adhara.sk\/?page_id=1652\"> (pokra&#269;ova&#357; v &#269;&iacute;tan&iacute;&#8230;)  <\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":128,"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\/1652"}],"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=1652"}],"version-history":[{"count":11,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/1652\/revisions"}],"predecessor-version":[{"id":4890,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/1652\/revisions\/4890"}],"up":[{"embeddable":true,"href":"https:\/\/www.adhara.sk\/index.php?rest_route=\/wp\/v2\/pages\/128"}],"wp:attachment":[{"href":"https:\/\/www.adhara.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}