[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.pdmc.cz\/jak-vznikaji-polarni-zare\/#Article","mainEntityOfPage":"https:\/\/www.pdmc.cz\/jak-vznikaji-polarni-zare\/","headline":"Jak vznikaj\u00ed pol\u00e1rn\u00ed z\u00e1\u0159e","name":"Jak vznikaj\u00ed pol\u00e1rn\u00ed z\u00e1\u0159e","description":"Jedn\u00edm z\u00a0nejobl\u00edben\u011bj\u0161\u00edch fenom\u00e9n\u016f, kter\u00e9 m\u016f\u017eeme pozorovat, je bezesporu pol\u00e1rn\u00ed z\u00e1\u0159e. Ji\u017e od prad\u00e1vna je lid\u00e9 pozorovali a p\u0159ikl\u00e1dali jim nejr\u016fzn\u011bj\u0161\u00ed v\u00fdznam podle sv\u00e9ho n\u00e1bo\u017eenstv\u00ed. Dnes jsme v\u0161ak v\u011bt\u0161inou n\u00e1bo\u017eenstv\u00ed opustili. A je pravdou, \u017ee v\u011bda n\u00e1m dala odpov\u011bdi na mnoho v\u011bc\u00ed, kter\u00e9 jsme…","datePublished":"2023-01-08","dateModified":"2023-06-08","author":{"@type":"Person","@id":"https:\/\/www.pdmc.cz\/author\/#Person","name":"","url":"https:\/\/www.pdmc.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/dcb1aeb5e7d95014cdc92e76cf3c72f6b456579bf773ad0081803a6569ffc19c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/dcb1aeb5e7d95014cdc92e76cf3c72f6b456579bf773ad0081803a6569ffc19c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"pdmc.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.pdmc.cz\/wp-content\/uploads\/polzare1.jpg","url":"https:\/\/www.pdmc.cz\/wp-content\/uploads\/polzare1.jpg","height":0,"width":0},"url":"https:\/\/www.pdmc.cz\/jak-vznikaji-polarni-zare\/","about":["V\u011bda"],"wordCount":433,"articleBody":"Jedn\u00edm z\u00a0nejobl\u00edben\u011bj\u0161\u00edch fenom\u00e9n\u016f, kter\u00e9 m\u016f\u017eeme pozorovat, je bezesporu pol\u00e1rn\u00ed z\u00e1\u0159e. Ji\u017e od prad\u00e1vna je lid\u00e9 pozorovali a p\u0159ikl\u00e1dali jim nejr\u016fzn\u011bj\u0161\u00ed v\u00fdznam podle sv\u00e9ho n\u00e1bo\u017eenstv\u00ed. Dnes jsme v\u0161ak v\u011bt\u0161inou n\u00e1bo\u017eenstv\u00ed opustili. A je pravdou, \u017ee v\u011bda n\u00e1m dala odpov\u011bdi na mnoho v\u011bc\u00ed, kter\u00e9 jsme ji\u017e d\u0159\u00edve nedok\u00e1zali vysv\u011btlit, v\u010detn\u011b pr\u00e1v\u011b pol\u00e1rn\u00edch z\u00e1\u0159\u00ed.\u00a0Ty, a\u010dkoliv se objevuj\u00ed v\u00a0noci, maj\u00ed spojitost se Sluncem. Pr\u00e1v\u011b to je jejich p\u0159\u00ed\u010dinou, tedy sp\u00ed\u0161e slune\u010dn\u00ed erupce, kter\u00e9 se projevuj\u00ed mnohdy docela \u010dasto. Je pravdou, \u017ee n\u00e1m p\u0159ipravuj\u00ed n\u00e1dhernou pod\u00edvanou, ale jak vlastn\u011b vznik\u00e1?\u00a0\u00a0Jen m\u00e1lokdo si dovede p\u0159edstavit, jak obrovsk\u00e9 Slunce ve skute\u010dnosti je. N\u00e1m se zd\u00e1 mal\u00e9, av\u0161ak je to proto, \u017ee jsme od n\u011bj velmi vzd\u00e1leni. Je tedy pochopiteln\u00e9, \u017ee p\u0159i erupci doch\u00e1z\u00ed k\u00a0vyvr\u017een\u00ed obrovsk\u00e9 spousty materi\u00e1lu, podobn\u011b jako je tomu nap\u0159\u00edklad u sopek. A jeliko\u017e ve vesm\u00edru nen\u00ed gravitace, postupuj\u00ed tyto \u010d\u00e1stice slune\u010dn\u00ed soustavou.\u00a0Pokud jsou p\u0159\u00edhodn\u00e9 podm\u00ednky a na\u0161e Zem\u011b se t\u011bmto v\u00fdboj\u016fm ocitne v\u00a0cest\u011b, jsou zadr\u017eeny ionosf\u00e9rou. S\u00a0tou reaguj\u00ed a vytv\u00e1\u0159\u00ed p\u0159itom dob\u0159e zn\u00e1m\u00e9 barevn\u00e9 obrazce. Ty pak m\u016f\u017eeme pozorovat i my.\u00a0\u00a0Pro\u010d se ale pol\u00e1rn\u00ed z\u00e1\u0159e objevuj\u00ed p\u0159edev\u0161\u00edm na p\u00f3lech, hlavn\u011b pak na severn\u00edm? Za to m\u016f\u017ee naklon\u011bn\u00ed zemsk\u00e9 osy. Ta zp\u016fsobuje, \u017ee pr\u00e1v\u011b p\u00f3ly jsou t\u00edm, co je naklon\u011bno ke Slunci, a co tedy dostane nejv\u011bt\u0161\u00ed d\u00e1vku t\u00e9to radiace. I kdy\u017e je pravdou, \u017ee p\u0159i zvl\u00e1\u0161t\u011b velk\u00fdch erupc\u00edch je mo\u017en\u00e9 pol\u00e1rn\u00ed z\u00e1\u0159i pozorovat i v\u00a0jin\u00fdch oblastech. N\u011bkolikr\u00e1t se poda\u0159ilo ji pozorovat dokonce i v\u00a0na\u0161\u00ed republice.\u00a0V\u00a0ka\u017ed\u00e9m p\u0159\u00edpad\u011b je pravdou, \u017ee se jedn\u00e1 o kr\u00e1sn\u00e9 p\u0159edstaven\u00ed, kter\u00e9 nav\u00edc nen\u00ed nijak nebezpe\u010dn\u00e9. Na\u0161e ionosf\u00e9ra je dostate\u010dn\u011b siln\u00e1, aby ve\u0161ker\u00e9 z\u00e1\u0159en\u00ed pohltila a v\u00a0podstat\u011b je p\u0159em\u011bnila na barevn\u00e9 p\u0159edstaven\u00ed, kter\u00e9 si m\u016f\u017eeme u\u017e\u00edvat.\u00a0Jist\u011b, skute\u010dnost je jin\u00e1 ne\u017e to, co n\u00e1m \u0159\u00edkala star\u00e1 n\u00e1bo\u017eenstv\u00ed. To v\u0161ak neznamen\u00e1, \u017ee jde o m\u00e9n\u011b pozoruhodn\u00fd fenom\u00e9n, a m\u011bli bychom b\u00fdt r\u00e1di, \u017ee jej m\u016f\u017eeme pozorovat.                                                                                                                                                                                                                                                                                                                                                                                        3.8\/5 - (12 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak vznikaj\u00ed pol\u00e1rn\u00ed z\u00e1\u0159e","item":"https:\/\/www.pdmc.cz\/jak-vznikaji-polarni-zare\/#breadcrumbitem"}]}]