{"id":263466,"date":"2022-09-22T16:38:15","date_gmt":"2022-09-22T15:38:15","guid":{"rendered":"https:\/\/zakrasnejsivimperk.cz\/?p=263466"},"modified":"2022-09-22T16:43:11","modified_gmt":"2022-09-22T15:43:11","slug":"astronomicky-ustav-av-cr-konci-astronomicke-leto-a-zacina-astronomicky-podzim","status":"publish","type":"post","link":"https:\/\/zakrasnejsivimperk.cz\/?p=263466","title":{"rendered":"INFOSERVIS: Je tu konec astronomick\u00e9ho l\u00e9ta. Za\u010d\u00edn\u00e1 astronomick\u00fd podzim, v p\u00e1tek 23. z\u00e1\u0159\u00ed"},"content":{"rendered":"
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Obr\u00e1zek: Aldebaran.cz<\/figcaption><\/figure>\n

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K oslav\u011b (nebo smute\u010dn\u00edmu ob\u0159adu, jak je libo), si budete muset p\u0159ivstat. V p\u00e1tek 23. z\u00e1\u0159\u00ed ve 03:04 SEL\u010c (tedy toho \u010dasu, kter\u00fd aktu\u00e1ln\u011b pou\u017e\u00edv\u00e1me) vstoup\u00ed Slunce do znamen\u00ed Vah, nastane podzimn\u00ed rovnodennost a za\u010dne tak astronomick\u00fd podzim. Ale aby to nebylo jen such\u00e9 konstatov\u00e1n\u00ed…<\/h6>\n

\"\"Ve \u0161kole se leckdo z n\u00e1s u\u010dil, \u017ee podzim za\u010d\u00edn\u00e1 23. z\u00e1\u0159\u00ed. V druh\u00e9 polovin\u011b minul\u00e9ho stolet\u00ed tomu tak i v\u011bt\u0161inou bylo. Data za\u010d\u00e1tku ro\u010dn\u00edch obdob\u00ed se ale m\u011bn\u00ed. N\u00e1\u0161 kalend\u00e1\u0159n\u00ed rok toti\u017e nen\u00ed celistv\u00fdm n\u00e1sobkem dn\u00ed, a proto je t\u0159eba zav\u00e1d\u011bt p\u0159estupn\u00e9 roky, kdy si do kalend\u00e1\u0159e p\u0159id\u00e1v\u00e1me jeden den nav\u00edc. Proto se den podzimn\u00ed rovnodennosti (a v\u016fbec v\u0161ech okam\u017eik\u016f za\u010d\u00e1tk\u016f nov\u00fdch ro\u010dn\u00edch dob) m\u011bn\u00ed. Letos to ale na 23. z\u00e1\u0159\u00ed vy\u0161lo.<\/p>\n

Slovo \u201erovnodennost\u201c nazna\u010duje, \u017ee den by m\u011bl b\u00fdt stejn\u011b dlouh\u00fd jako noc. Jen\u017ee to tak nen\u00ed. V den rovnodennosti jsou den a noc stejn\u011b dlouh\u00e9 jen p\u0159ibli\u017en\u011b. Slune\u010dn\u00ed kotou\u010d nen\u00ed bod a jeho paprsky se nav\u00edc v atmosf\u00e9\u0159e oh\u00fdbaj\u00ed (\u0159\u00edk\u00e1me tomu refrakce), tak\u017ee v den rovnodennosti je Slunce viditeln\u00e9 nad obzorem p\u0159ibli\u017en\u011b 12 hodin a 10 minut, pod obzorem je jen 11 hodin a 50 minut. Problematika je ale je\u0161t\u011b slo\u017eit\u011bj\u0161\u00ed, faktor\u016f, kter\u00e9 ovliv\u0148uj\u00ed d\u00e9lku dne a noci, je hned n\u011bkolik.<\/p>\n

V\u00edce https:\/\/www.aldebaran.cz\/bulletin\/2016_34_equ.php<\/strong><\/a> (v \u010dl\u00e1nku sje\u010fte n\u00ed\u017ee).<\/p>\n

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FB –\u00a0Astronomick\u00fd \u00fastav AV \u010cR<\/a><\/strong><\/p>\n

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 <\/p>\n","protected":false},"excerpt":{"rendered":"

  K <\/p>\n","protected":false},"author":2,"featured_media":263467,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[19],"tags":[],"jetpack_featured_media_url":"https:\/\/zakrasnejsivimperk.cz\/wp-content\/uploads\/2022\/09\/22\/astronomick\u00fd-podzim.jpg","_links":{"self":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/263466"}],"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=263466"}],"version-history":[{"count":6,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/263466\/revisions"}],"predecessor-version":[{"id":263473,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/263466\/revisions\/263473"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/media\/263467"}],"wp:attachment":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=263466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=263466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=263466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}