Jak\u00fd to \u00fachvatn\u00fd pohled, kdy\u017e se no\u010dn\u00ed obloha zaplnila barvami, kter\u00e9 jako by pr\u0161ely na vodop\u00e1d Sk\u00f3gafoss na Islandu. Tento sn\u00edmek po\u0159\u00eddil fotograf v dubnu 2025 jedinou 5sekundovou expozic\u00ed. Vid\u011bt pol\u00e1rn\u00ed z\u00e1\u0159i pat\u0159\u00ed u mnoha lid\u00ed mezi v\u011bci, kter\u00e9 si cht\u011bj\u00ed za\u017e\u00edt p\u0159ed smrt\u00ed. Nen\u00ed to v\u0161ak snadn\u00e9. Vy\u017eaduje to vysokou slune\u010dn\u00ed aktivitu, tmavou a jasnou oblohu a obvykle tak\u00e9 pozorovac\u00ed m\u00edsto ve vysok\u00fdch zem\u011bpisn\u00fdch \u0161\u00ed\u0159k\u00e1ch. D\u00edky tomu je pol\u00e1rn\u00ed z\u00e1\u0159e na severn\u00ed polokouli viditeln\u00e1 sn\u00e1ze ne\u017e jej\u00ed prot\u011bj\u0161ek na ji\u017en\u00ed polokouli, jednodu\u0161e proto, \u017ee na ji\u017en\u00ed polokouli je m\u00e9n\u011b pevniny, zejm\u00e9na v okol\u00ed antarktick\u00e9ho kruhu. Pol\u00e1rn\u00ed z\u00e1\u0159e vznik\u00e1 p\u016fsoben\u00edm nabit\u00fdch \u010d\u00e1stic ze slune\u010dn\u00edho v\u011btru, kter\u00e9 jsou zachyceny zemskou magnetosf\u00e9rou a magnetick\u00fdm polem nasm\u011brov\u00e1ny do oblasti bl\u00edzko jednoho z p\u00f3l\u016f, kde se sr\u00e1\u017eej\u00ed s \u010d\u00e1sticemi plynu v atmosf\u00e9\u0159e. R\u016fzn\u00e9 barvy nazna\u010duj\u00ed interakce s r\u016fzn\u00fdmi plyny v r\u016fzn\u00fdch v\u00fd\u0161k\u00e1ch, jako je kysl\u00edk (\u010derven\u00e1 a zelen\u00e1) a dus\u00edk (modr\u00e1 a r\u016f\u017eov\u00e1). Hlavn\u00ed str\u00e1nka APOD na webu NASA se st\u011bhuje: Z apod.nasa.gov na science.nasa.gov\/apod<\/p>\n
<\/p>\n
**Credit**: Victor Lima
\n Text:
\nCecilia Chirenti
\n(NASA
\nGSFC,
\nUMCP,
\nCRESST II)<\/p>\n","protected":false},"excerpt":{"rendered":"
Jak\u00fd to \u00fachvatn\u00fd pohled, kdy\u017e se no\u010dn\u00ed obloha zaplnila barvami, kter\u00e9 jako by pr\u0161ely na vodop\u00e1d Sk\u00f3gafoss na Islandu. Tento sn\u00edmek po\u0159\u00eddil fotograf v dubnu 2025 jedinou 5sekundovou expozic\u00ed. Vid\u011bt […]<\/p>\n","protected":false},"author":1,"featured_media":4036,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4035","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\/4035","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=4035"}],"version-history":[{"count":0,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/posts\/4035\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media\/4036"}],"wp:attachment":[{"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/media?parent=4035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/categories?post=4035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/astrohodonin.cz\/index.php\/wp-json\/wp\/v2\/tags?post=4035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}