{"id":1555,"date":"2021-10-29T11:51:58","date_gmt":"2021-10-29T09:51:58","guid":{"rendered":"https:\/\/www.astro-novinky.eu\/?p=1555"},"modified":"2021-10-29T13:53:36","modified_gmt":"2021-10-29T11:53:36","slug":"v-sobotu-mozna-uvidime-polarni-zare","status":"publish","type":"post","link":"https:\/\/www.astro-novinky.eu\/index.php\/2021\/10\/29\/v-sobotu-mozna-uvidime-polarni-zare\/","title":{"rendered":"V noci ze soboty na ned\u011bli mo\u017en\u00e1 uvid\u00edme pol\u00e1rn\u00ed z\u00e1\u0159e"},"content":{"rendered":"<figure id=\"attachment_1556\" aria-describedby=\"caption-attachment-1556\" style=\"width: 300px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.astro-novinky.eu\/wp-content\/uploads\/2021\/10\/Aurora4SMALL.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-1556\" src=\"https:\/\/www.astro-novinky.eu\/wp-content\/uploads\/2021\/10\/Aurora4SMALL-300x200.jpg\" alt=\"Jasn\u00e1 pol\u00e1rn\u00ed z\u00e1\u0159e v Troms\u00f8. Foto: Tom\u00e1\u0161 Slovinsk\u00fd.\" width=\"300\" height=\"200\" srcset=\"https:\/\/www.astro-novinky.eu\/wp-content\/uploads\/2021\/10\/Aurora4SMALL-300x200.jpg 300w, https:\/\/www.astro-novinky.eu\/wp-content\/uploads\/2021\/10\/Aurora4SMALL-1024x683.jpg 1024w, https:\/\/www.astro-novinky.eu\/wp-content\/uploads\/2021\/10\/Aurora4SMALL-768x512.jpg 768w, https:\/\/www.astro-novinky.eu\/wp-content\/uploads\/2021\/10\/Aurora4SMALL-1536x1024.jpg 1536w, https:\/\/www.astro-novinky.eu\/wp-content\/uploads\/2021\/10\/Aurora4SMALL-1320x880.jpg 1320w, https:\/\/www.astro-novinky.eu\/wp-content\/uploads\/2021\/10\/Aurora4SMALL.jpg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-1556\" class=\"wp-caption-text\">Jasn\u00e1 pol\u00e1rn\u00ed z\u00e1\u0159e v Troms\u00f8. Foto: Tom\u00e1\u0161 Slovinsk\u00fd.<\/figcaption><\/figure>\n<p>V noci ze soboty na ned\u011bli 30.\/31. \u0159\u00edjna se podle NOAA (N\u00e1rodn\u00ed \u00fa\u0159ad pro oce\u00e1n a atmosf\u00e9ru) naskytnou vysok\u00e9 \u0161ance na pozorov\u00e1n\u00ed pol\u00e1rn\u00edch z\u00e1\u0159\u00ed i ze st\u0159edn\u00edch zem\u011bpisn\u00fdch \u0161\u00ed\u0159ek, tedy i z \u010ceska a Slovenska. Z\u00e1\u0159e jsou d\u016fsledkem interakce hust\u00e9ho oblaku nabit\u00fdch \u010d\u00e1stic se zemskou atmosf\u00e9rou. Oblak se odtrhnl od Slunce p\u0159i mimo\u0159\u00e1dn\u011b siln\u00e9 erupci t\u0159\u00eddy X1, ke kter\u00e9 do\u0161lo 28. \u0159\u00edjna v 17:35 SEL\u010c. Pokud bude geomagnetick\u00e1 bou\u0159e tak siln\u00e1, jak astronom\u00e9 p\u0159edpov\u00eddaj\u00ed, budou z\u00e1\u0159e pozorovateln\u00e9 z na\u0161ich kon\u010din n\u00edzko nad severn\u00edm obzorem s nejv\u011bt\u0161\u00ed pravd\u011bpodobnost\u00ed u\u017e po setm\u011bn\u00ed. Pozorovat se ale vyplat\u00ed v pr\u016fb\u011bhu cel\u00e9 noci.<\/p>\n<p><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v b1v8xokw oo9gr5id hzawbc8m\" dir=\"auto\"><strong>Na Slunci do\u0161lo 28. \u0159\u00edjna v 17:35 SEL\u010c k velmi siln\u00e9 erupci t\u0159\u00eddy X1.<\/strong> Jde o jednu z nejsiln\u011bj\u0161\u00edch erupc\u00ed tohoto roku. Erupce se odehr\u00e1la u aktivn\u00ed oblasti AR2887, kter\u00e1 je nyn\u00ed nam\u00ed\u0159en\u00e1 ji\u017en\u011b sm\u011brem k Zemi, a byl b\u011bhem n\u00ed uvoln\u011bn oblak koron\u00e1ln\u00ed hmoty m\u00ed\u0159\u00edc\u00ed na\u0161\u00edm sm\u011brem. Astronomov\u00e9 p\u0159edpov\u00eddaj\u00ed siln\u00e9 arktick\u00e9 pol\u00e1rn\u00ed z\u00e1\u0159e, kter\u00e9 by p\u0159i zv\u00fd\u0161en\u00e9 intenzit\u011b mohly b\u00fdt viditeln\u00e9 i z \u010ceska a Slovenska, a to v noci ze soboty na ned\u011bli. <\/span><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v b1v8xokw oo9gr5id hzawbc8m\" dir=\"auto\">P\u0159edpov\u011b\u010f po\u010das\u00ed je zat\u00edm velmi dobr\u00e1, nav\u00edc sv\u00fdm svitem nebude ru\u0161it M\u011bs\u00edc, kter\u00fd vych\u00e1z\u00ed a\u017e v druh\u00e9 polovin\u011b noci. <\/span><\/p>\n<p><span class=\"d2edcug0 hpfvmrgz qv66sw1b c1et5uql lr9zc1uh a8c37x1j keod5gw0 nxhoafnm aigsh9s9 d3f4x2em fe6kdd0r mau55g9w c8b282yb iv3no6db jq4qci2q a3bd9o3v b1v8xokw oo9gr5id hzawbc8m\" dir=\"auto\"><strong>Pro pozorov\u00e1n\u00ed je pot\u0159eba naj\u00edt m\u00edsto s dokonal\u00fdm v\u00fdhledem k severu, neru\u0161en\u00e9 sv\u011bten\u00fdm zne\u010di\u0161t\u011bn\u00edm.<\/strong> A pr\u016fb\u011b\u017en\u011b sledovat n\u011bjak\u00fd online auror\u00e1ln\u00ed monitor, nap\u0159\u00edklad <a href=\"https:\/\/www.solarham.net\/\" target=\"_blank\" rel=\"noopener\">SolarHam<\/a>. Ze v\u0161ech indik\u00e1tor\u016f je nejd\u016fle\u017eit\u011bj\u0161\u00ed tzv. <em>Bz<\/em> slo\u017eka meziplanet\u00e1rn\u00edho magnetick\u00e9ho pole (IMF), kter\u00e1 mus\u00ed b\u00fdt pro vznik v\u00fdrazn\u00fdch pol\u00e1rn\u00edch z\u00e1\u0159\u00ed z\u00e1porn\u00e1 (graf na str\u00e1nce <a href=\"https:\/\/www.solarham.net\/\" target=\"_blank\" rel=\"noopener\">SolarHam<\/a> \u00fapln\u011b dole &#8211; \u010derven\u00e1 linie). Druh\u00fdm v\u00fdznamn\u00fdm indik\u00e1torem je pak hodnota <em>Kp<\/em>, kter\u00e1 ud\u00e1v\u00e1, p\u0159i jak\u00e9 intenzit\u011b geomagnetick\u00e9 bou\u0159e je pol\u00e1rn\u00ed z\u00e1\u0159e pozorovateln\u00e1 z jak\u00fdch zem\u011bpisn\u00fdch \u0161\u00ed\u0159ek. V p\u0159\u00edpad\u011b hodnoty 6 jsou viditeln\u00e9 n\u00edzko nad severn\u00edm obzorem, od hodnoty 7 v\u00fd\u0161e se dost\u00e1vaj\u00ed vysoko nad obzor.<br \/>\n<\/span><\/p>\n<p style=\"text-align: center;\"><strong>Siln\u00e1 erupce t\u0159\u00eddy X1 na Slunci 28. \u0159\u00edjna 2021. Zdroj: SDO\/NASA.<\/strong><\/p>\n<p><iframe loading=\"lazy\" title=\"Earth-facing sunspot blasts powerful X-flare! See spacecraft&#039;s view\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/Mvu3rihxW5U?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p><strong>Pol\u00e1rn\u00ed z\u00e1\u0159e vznikaj\u00ed v\u00a0d\u016fsledku interakce nabit\u00fdch \u010d\u00e1stic putuj\u00edc\u00edch kontinu\u00e1ln\u011b ze Slunce s\u00a0molekulami a atomy vzduchu ve vysok\u00e9 atmosf\u00e9\u0159e Zem\u011b. <\/strong>B\u011b\u017en\u011b se vyskytuj\u00ed mezi 80 a\u017e 150 km, vz\u00e1cn\u011bji a\u017e do 400 km nad zemsk\u00fdm povrchem. Za interakc\u00ed stoj\u00ed konkr\u00e9tn\u011b <em>protony<\/em>, <em>elektrony<\/em> a tzv. <em>alfa \u010d\u00e1stice<\/em> (j\u00e1dra helia se dv\u011bma protony a dv\u011bma neutrony), kter\u00e9 Slunce zpravidla produkuje b\u011bhem siln\u00fdch erupc\u00ed v magneticky uzav\u0159en\u00fdch oblac\u00edch (tzv. <em>plazmoidech<\/em>). Zem\u011b m\u00e1 sv\u016fj p\u0159irozen\u00fd magnetick\u00fd \u0161t\u00edt, d\u00edky n\u011bmu\u017e je v\u011bt\u0161ina tohoto \u017eivotu nebezpe\u010dn\u00e9ho z\u00e1\u0159en\u00ed odklon\u011bna. \u010c\u00e1st tohoto slune\u010dn\u00edho materi\u00e1lu se ale uv\u011bzn\u00ed v oblastech okolo zemsk\u00fdch magnetick\u00fdch p\u00f3l\u016f, kde silo\u010d\u00e1ry magnetick\u00e9ho pole Zem\u011b a tedy i \u010d\u00e1stice proniknou do na\u0161\u00ed atmosf\u00e9ry. Tam pak d\u00edky sr\u00e1\u017ek\u00e1m s atomy a molekulami vzduchu doch\u00e1z\u00ed k excitaci (i ionizaci) a n\u00e1sledn\u00e9mu vyz\u00e1\u0159en\u00ed v podob\u011b viditeln\u00e9ho sv\u011btla. \u00a0Tak vlastn\u011b sledujeme v zemsk\u00e9 atmosf\u00e9\u0159e doutnav\u00fd v\u00fdboj, jeho\u017e odst\u00edny odpov\u00eddaj\u00ed konkr\u00e9tn\u00edm hodnot\u00e1m vyz\u00e1\u0159en\u00e9 energie. Nej\u010dast\u011bj\u0161\u00ed zelen\u00e1 a \u010derven\u00e1 z\u00e1\u0159e pat\u0159\u00ed excitovan\u00e9mu kysl\u00edku, vz\u00e1cn\u011bj\u0161\u00ed modr\u00e9 zabarven\u00ed pak odpov\u00edd\u00e1 ionizovan\u00e9mu dus\u00edku. Ale to nejsou jedin\u00e9 emise.<\/p>\n<h4>Kontakty:<\/h4>\n<p><strong>Bc. Petr Hor\u00e1lek<\/strong><br \/>\n<em>PR v\u00fdstup\u016f evropsk\u00fdch projekt\u016f F\u00da SU v Opav\u011b<\/em><br \/>\nEmail: <a href=\"mailto:petr.horalek@slu.cz\">petr.horalek@slu.cz<br \/>\n<\/a>Telefon: +420 732 826\u00a0853<\/p>\n<p><strong>Bc.\u00a0Kl\u00e1ra Jan\u010d\u00edkov\u00e1<\/strong><br \/>\n<em>Sekretari\u00e1t Fyzik\u00e1ln\u00edho \u00fastavu v Opav\u011b<\/em><br \/>\nEmail:\u00a0<a href=\"mailto:klara.jancikova@slu.cz\">klara.jancikova@slu.cz<br \/>\n<\/a>Telefon: +420 553 684 267<\/p>\n<p><strong>prof. RNDr. Zden\u011bk Stuchl\u00edk, CSc.<\/strong><br \/>\n<em>\u0158editel Fyzik\u00e1ln\u00edho \u00fastavu SU v\u00a0Opav\u011b<br \/>\n<\/em>Email: <a href=\"mailto:zdenek.stuchlik@physics.slu.cz\">zdenek.stuchlik@physics.slu.cz<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>V noci ze soboty na ned\u011bli 30.\/31. \u0159\u00edjna se podle NOAA (N\u00e1rodn\u00ed \u00fa\u0159ad pro oce\u00e1n a atmosf\u00e9ru) naskytnou vysok\u00e9 \u0161ance na pozorov\u00e1n\u00ed pol\u00e1rn\u00edch z\u00e1\u0159\u00ed i ze st\u0159edn\u00edch zem\u011bpisn\u00fdch \u0161\u00ed\u0159ek, tedy i z \u010ceska a Slovenska. Z\u00e1\u0159e budou d\u016fsledkem interakce hust\u00e9ho oblaku nabit\u00fdch \u010d\u00e1stic se zemskou atmosf\u00e9rou. Oblak se odtrhnl od Slunce p\u0159i mimo\u0159\u00e1dn\u011b siln\u00e9 erupci t\u0159\u00eddy X1, ke kter\u00e9 do\u0161lo 28. \u0159\u00edjna v 17:35 SEL\u010c. Pokud bude geomagnetick\u00e1 bou\u0159e tak siln\u00e1, jak astronom\u00e9 p\u0159edpov\u00eddaj\u00ed, budou z\u00e1\u0159e pozorovateln\u00e9 z na\u0161ich kon\u010din n\u00edzko nad severn\u00edm obzorem s nejv\u011bt\u0161\u00ed pravd\u011bpodobnost\u00ed u\u017e po setm\u011bn\u00ed. Pozorovat se ale vyplat\u00ed v pr\u016fb\u011bhu cel\u00e9 noci.<\/p>\n","protected":false},"author":6,"featured_media":1556,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[26,30],"tags":[],"class_list":["post-1555","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aktuality","category-ukazy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>V noci ze soboty na ned\u011bli mo\u017en\u00e1 uvid\u00edme pol\u00e1rn\u00ed z\u00e1\u0159e - Astro-novinky.eu<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.astro-novinky.eu\/index.php\/2021\/10\/29\/v-sobotu-mozna-uvidime-polarni-zare\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"V noci ze soboty na ned\u011bli mo\u017en\u00e1 uvid\u00edme pol\u00e1rn\u00ed z\u00e1\u0159e - Astro-novinky.eu\" \/>\n<meta property=\"og:description\" content=\"V noci ze soboty na ned\u011bli 30.\/31. \u0159\u00edjna se podle NOAA (N\u00e1rodn\u00ed \u00fa\u0159ad pro oce\u00e1n a atmosf\u00e9ru) naskytnou vysok\u00e9 \u0161ance na pozorov\u00e1n\u00ed pol\u00e1rn\u00edch z\u00e1\u0159\u00ed i ze st\u0159edn\u00edch zem\u011bpisn\u00fdch \u0161\u00ed\u0159ek, tedy i z \u010ceska a Slovenska. 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