{"id":84,"date":"2004-11-15T13:27:00","date_gmt":"2004-11-15T12:27:00","guid":{"rendered":"https:\/\/kids.esa.int\/our_nearest_star\/"},"modified":"2026-10-08T00:23:55","modified_gmt":"2026-10-07T22:23:55","slug":"our_nearest_star","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/our_nearest_star\/","title":{"rendered":"Na\u0161e nejbli\u017e\u0161\u00ed hv\u011bzda"},"content":{"rendered":"
\n

Slunce je na\u0161e nejbli\u017e\u0161\u00ed hv\u011bzda. Slunce n\u00e1m poskytuje sv\u011btlo a teplo. Vyza\u0159uje v\u0161ak tak\u00e9 nebezpe\u010dn\u00e9 ultrafialov\u00e9 z\u00e1\u0159en\u00ed, kter\u00e9 zp\u016fsobuje sp\u00e1len\u00ed k\u016f\u017ee a m\u016f\u017ee vyvolat rakovinu. Bez Slunce by nebylo denn\u00ed sv\u011btlo a na\u0161e planeta by byla prost\u011b temn\u00fdm, zamrzl\u00fdm sv\u011btem bez oce\u00e1n\u016f s tekutou vodou a bez \u017eivota.<\/p>\n<\/div>\n

Tato obrovsk\u00e1 koule extr\u00e9mn\u011b hork\u00e9ho plynu m\u00e1 pr\u016fm\u011br 1,4 milionu kilometr\u016f, co\u017e odpov\u00edd\u00e1 109 Zem\u00edm postaven\u00fdm vedle sebe. S hmotnost\u00ed 2 milion\u016f bilion\u016f bilion\u016f kilogram\u016f v\u00e1\u017e\u00ed tolik jako 330 000 Zem\u00ed. Do Slunce by se ve\u0161lo asi 1 300 000 Zem\u00ed!<\/p>\n

Ze Zem\u011b se zd\u00e1, \u017ee se Slunce b\u011bhem dne pohybuje po obloze a v noci jako by mizelo. Je to proto, \u017ee se Zem\u011b ot\u00e1\u010d\u00ed sm\u011brem na v\u00fdchod. Zem\u011b se ot\u00e1\u010d\u00ed kolem sv\u00e9 osy, co\u017e je pomysln\u00e1 p\u0159\u00edmka proch\u00e1zej\u00edc\u00ed st\u0159edem Zem\u011b mezi severn\u00edm a ji\u017en\u00edm p\u00f3lem. To znamen\u00e1, \u017ee n\u00e1m zde na rotuj\u00edc\u00ed Zemi se zd\u00e1, \u017ee Slunce r\u00e1no vych\u00e1z\u00ed na v\u00fdchod\u011b a kolem poledne stoup\u00e1 na obloze st\u00e1le v\u00fd\u0161 a v\u00fd\u0161. Odpoledne se pak Slunce zd\u00e1 klesat na obloze st\u00e1le n\u00ed\u017ee a n\u00ed\u017ee, ne\u017e zapadne na z\u00e1pad\u011b.<\/p>\n

A\u010dkoli se p\u0159i v\u00fdchodu nebo z\u00e1padu slunce jev\u00ed jako mal\u00e9, je to pouze proto, \u017ee Slunce le\u017e\u00ed od n\u00e1s ve vzd\u00e1lenosti p\u0159ibli\u017en\u011b 150 milion\u016f km. Z t\u00e9to vzd\u00e1lenosti trv\u00e1 slune\u010dn\u00edmu sv\u011btlu asi 8 minut, ne\u017e k n\u00e1m doraz\u00ed \u2013 i kdy\u017e se pohybuje rychlost\u00ed p\u0159ibli\u017en\u011b 300 000 km\/s. To znamen\u00e1, \u017ee z\u00e1pad Slunce vid\u00edme a\u017e osm minut pot\u00e9, co k n\u011bmu ve skute\u010dnosti do\u0161lo!<\/p>","protected":false},"excerpt":{"rendered":"

The Sun is our nearest star. The Sun provides us with light and heat. It also gives out dangerous ultraviolet light which causes sunburn and may cause cancer. Without the […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2001\/06\/a_temperature_map_of_the_sun_s_corona_as_recorded_by_the_eit_instrument_on_soho2\/17865195-3-eng-GB\/A_temperature_map_of_the_Sun_s_corona_as_recorded_by_the_EIT_instrument_on_SOHO.jpg","esa_banner_description":"A temperature map of the Sun's corona as recorded by the EIT instrument on SOHO","esa_banner_credit":"EIT Consortium (ESA\/NASA)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/06\/A_temperature_map_of_the_Sun_s_corona_as_recorded_by_the_EIT_instrument_on_SOHO2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,35],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-84","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-the-sun","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/84","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=84"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/84\/revisions"}],"predecessor-version":[{"id":1227,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/84\/revisions\/1227"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=84"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=84"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=84"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=84"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=84"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=84"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=84"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=84"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=84"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=84"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}