{"id":287567,"date":"2023-09-23T09:42:15","date_gmt":"2023-09-23T08:42:15","guid":{"rendered":"https:\/\/zakrasnejsivimperk.cz\/?p=287567"},"modified":"2024-09-22T09:05:13","modified_gmt":"2024-09-22T08:05:13","slug":"astronomicky-ustav-23-zari-v-850-hodin-nastava-podzimni-rovnodennost-a-zacne-astronomicky-podzim","status":"publish","type":"post","link":"https:\/\/zakrasnejsivimperk.cz\/?p=287567","title":{"rendered":"ASTRONOMICK\u00dd \u00daSTAV: Podzimn\u00ed rovnodennost. Za\u010dal astronomick\u00fd podzim"},"content":{"rendered":"

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Dnes, v sobotu 23. z\u00e1\u0159\u00ed 2023 v 8 hodin a 50 minut na\u0161eho \u010dasu, nast\u00e1v\u00e1 podzimn\u00ed rovnodennost. U n\u00e1s na severn\u00ed polokouli ozna\u010duje z\u00e1\u0159ijov\u00e1 rovnodennost za\u010d\u00e1tek astronomick\u00e9ho podzimu. Dny se budou st\u00e1le zkracovat a\u017e do zimn\u00edho slunovratu, kter\u00fd letos nastane 22. prosince v rann\u00edch hodin\u00e1ch. Podzim meteorologick\u00fd u\u017e ov\u0161em panuje od 1. z\u00e1\u0159\u00ed.<\/h6>\n

\"\"Letos podzimn\u00ed rovnodennost vych\u00e1z\u00ed tak\u0159\u00edkaj\u00edc podle \u0161koln\u00edch osnov . Ale nen\u00ed tomu tak v\u017edy. Vz\u00e1cn\u011b m\u016f\u017ee k podzimn\u00ed rovnodennosti doj\u00edt i 21. z\u00e1\u0159\u00ed \u2013 naposledy se tak stalo roku 643, p\u0159\u00ed\u0161t\u011b a\u017e v roce 2092. A tak\u00e9 a\u017e 24. z\u00e1\u0159\u00ed \u2013 roku 1931 a znovu a\u017e roku 2303. D\u016fvod je v dob\u011b ob\u011bhu Zem\u011b kolem Slunce. Ta trv\u00e1 365 dn\u00ed 5 hodin 49 minut. Ale n\u00e1\u0161 kalend\u00e1\u0159 m\u00e1 pouze cel\u00e9 dny. Proto mus\u00edme ob\u010das za\u0159adit p\u0159estupn\u00fd den (nebo jej naopak vynechat), abychom n\u00e1\u0161 kalend\u00e1\u0159 srovnali s realitou.<\/p>\n

A pro\u010d dnes nebude rovnocenn\u00fd den s noc\u00ed, jak nazna\u010duje n\u00e1zev “rovnodennost”? Slune\u010dn\u00ed kotou\u010d jednak nen\u00ed bodov\u00fd (Slunce tedy vid\u00edme nad obzorem d\u00e9le), nav\u00edc se paprsky Slunce v zemsk\u00e9 atmosf\u00e9\u0159e oh\u00fdbaj\u00ed. V den rovnodennosti\u201c tak bude Slunce viditeln\u00e9 nad obzorem p\u0159ibli\u017en\u011b 12 hodin a 9 minut. Ke skute\u010dn\u00e9 rovnodennosti tak vlastn\u011b dojde a\u017e za t\u0159i dny .<\/p>\n

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FB – Astronomick\u00fd \u00fastav AV \u010cR<\/a><\/strong><\/p>\n

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  Dnes, <\/p>\n","protected":false},"author":2,"featured_media":287568,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[24],"tags":[],"jetpack_featured_media_url":"https:\/\/zakrasnejsivimperk.cz\/wp-content\/uploads\/2023\/09\/23\/podzimni-rovnodennost-23.jpg","_links":{"self":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/287567"}],"collection":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=287567"}],"version-history":[{"count":6,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/287567\/revisions"}],"predecessor-version":[{"id":322813,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/287567\/revisions\/322813"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/media\/287568"}],"wp:attachment":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=287567"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=287567"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=287567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}