{"id":323346,"date":"2024-09-27T14:15:12","date_gmt":"2024-09-27T13:15:12","guid":{"rendered":"https:\/\/zakrasnejsivimperk.cz\/?p=323346"},"modified":"2024-09-27T21:11:46","modified_gmt":"2024-09-27T20:11:46","slug":"ceska-republika-vedci-maji-presnejsi-data-o-priletajici-komete-tsuchinshan-atlas","status":"publish","type":"post","link":"https:\/\/zakrasnejsivimperk.cz\/?p=323346","title":{"rendered":"\u010cESK\u00c1 REPUBLIKA: V\u011bdci maj\u00ed p\u0159esn\u011bj\u0161\u00ed data o p\u0159il\u00e9taj\u00edc\u00ed nov\u00e9 komet\u011b Tsuchinshan\u2013ATLAS"},"content":{"rendered":"
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Aktu\u00e1ln\u00ed sn\u00edmek komety z\u00edskan\u00fd r\u00e1no 24. 9. 2024 pomoc\u00ed dalekohledu FRAM na Observato\u0159i Pierra Augera v Argentin\u011b. Barevn\u00fd sn\u00edmek vznikl slo\u017een\u00edm t\u0159\u00ed sn\u00edmk\u016f, kter\u00e9 byly po\u0159\u00edzeny t\u0159emi r\u016fzn\u00fdmi barevn\u00fdmi filtry. Autor: Martin Ma\u0161ek \/ Fyzik\u00e1ln\u00ed \u00fastav AV \u010cR<\/figcaption><\/figure>\n

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V\u011bdci zlep\u0161ili odhad pozorovatelnosti nov\u00e9 komety C\/2023 A3 (Tsuchinshan\u2013ATLAS). Podle jejich propo\u010dt\u016f bude nejv\u00edce viditeln\u00e1 ve druh\u00e9 polovin\u011b leto\u0161n\u00edho \u0159\u00edjna. Kometu objevila 22. \u00fanora 2023 jihoafrick\u00e1 observato\u0159 syst\u00e9mu ATLAS. Nez\u00e1visle na tom ji 9. ledna 2023 zaregistrovala i data \u010d\u00ednsk\u00e9 observato\u0159e Tsuchinshan (v p\u0159ekladu Purpurov\u00e1 hora).<\/h6>\n

\"\"Ji\u017e brzy po objevu bylo v\u011bdc\u016fm jasn\u00e9, \u017ee se kometa C\/2023 A3 m\u016f\u017ee za\u0159adit do rodiny \u201evelk\u00fdch komet\u201c. Existovala ale i jist\u00e1 \u0161ance, \u017ee by mohla pobl\u00ed\u017e Slunce zaniknout a nebyla by viditeln\u00e1 v\u016fbec.<\/p>\n

Joseph N. Marcus ze St. Luis v USA zve\u0159ejnil 10. z\u00e1\u0159\u00ed leto\u0161n\u00edho roku v elektronick\u00e9m telegramu \u010d. 5445 Mezin\u00e1rodn\u00ed astronomick\u00e9 unie propo\u010dty, podle kter\u00fdch by mohla kometa dodate\u010dn\u011b zjasnit vlivem \u201edop\u0159edn\u00e9ho rozptylu\u201c p\u0159i velk\u00e9m f\u00e1zov\u00e9m \u00fahlu. Tento efekt lze p\u0159irovnat ke zjasn\u011bn\u00ed sv\u011btlomet\u016f protijedouc\u00edho auta v mlze. D\u00edky tomu by mohla b\u00fdt kometa v\u00fdrazn\u011b jasn\u011bj\u0161\u00ed, ne\u017e p\u0159edpov\u011b\u010f p\u016fvodn\u011b uv\u00e1d\u011bla. Efekt ale nast\u00e1v\u00e1 pouze u prachov\u00fdch \u010d\u00e1stic a projevuje se ve v\u011bt\u0161\u00ed m\u00ed\u0159e jen u komet s velk\u00fdm pom\u011brem prachu k plynu v jejich atmosf\u00e9\u0159e.<\/p>\n

Obsah prachu v komet\u011b<\/h6>\n

Aby v\u011bdci zjistili, jak moc je tato kometa prachov\u00e1, pozoroval ji Martin Ma\u0161ek z Fyzik\u00e1ln\u00edho \u00fastavu AV \u010cR pomoc\u00ed robotick\u00e9ho dalekohledu FRAM um\u00edst\u011bn\u00e9ho v Argentin\u011b. Pozorov\u00e1n\u00ed potvrdilo zna\u010dn\u00fd prachov\u00fd obsah, a tedy i spr\u00e1vnost Marcusovy p\u0159edpov\u011bdi. Z posledn\u00edch pozorov\u00e1n\u00ed z\u00e1rove\u0148 vypl\u00fdv\u00e1, \u017ee z\u00e1nik komety je krajn\u011b nepravd\u011bpodobn\u00fd. V\u011bdci tak p\u0159edv\u00eddaj\u00ed, \u017ee kometa bude pom\u011brn\u011b jasn\u011b viditeln\u00e1.<\/p>\n

\u201eZda spln\u00ed parametry ,velk\u00e9 komety\u00b4 nelze s jistotou \u0159\u00edct, proto\u017ee by musela b\u00fdt pohodln\u011b viditeln\u00e1 okem, v\u010detn\u011b alespo\u0148 10\u00b0 dlouh\u00e9ho ohonu, i na nikoli \u00fapln\u011b tmav\u00e9 obloze. Posledn\u00ed kometou, kter\u00e1 tyto parametry na na\u0161\u00ed obloze splnila, byla v roce 1997 kometa C\/1995 O1 (Hale-Bopp),\u201c<\/em> up\u0159es\u0148uje Jakub \u010cern\u00fd ze Spole\u010dnosti pro meziplanet\u00e1rn\u00ed hmotu.<\/p>\n

Dv\u011b obdob\u00ed pozorovatelnosti<\/h6>\n

Podle p\u0159edpov\u011bzen\u00e9 jasnosti, v\u010detn\u011b zahrnut\u00ed efektu dop\u0159edn\u00e9ho rozptylu, lid\u00e9 budou moci pozorovat kometu ve dvou obdob\u00edch. V prvn\u00edch sedmi dnech \u0159\u00edjna bude C\/2023 A3 (Tsuchinshan\u2013ATLAS) jen n\u00edzko nad obzorem p\u0159ed v\u00fdchodem Slunce; p\u0159ibli\u017en\u011b v 6:30 SEL\u010c se bude nach\u00e1zet v podobn\u00e9 poloze a jasnosti, za jak\u00fdch lze pozorovat planetu Merkur. M\u011bla by postupn\u011b zjas\u0148ovat z 2 mag 1. \u0159\u00edjna a\u017e k -1 mag dne 7. \u0159\u00edjna. K pozorov\u00e1n\u00ed komety za t\u011bchto podm\u00ednek pom\u016f\u017ee dobr\u00fd v\u00fdhled na v\u00fdchodn\u00ed obzor, \u010dist\u00fd obzor bez mlhy a vzd\u00e1len\u00e9 obla\u010dnosti. Vy\u0161\u0161\u00ed nadmo\u0159sk\u00e1 v\u00fd\u0161ka je v\u00fdhodou. Dev\u00e1t\u00e9ho \u0159\u00edjna dos\u00e1hne maxim\u00e1ln\u00ed jasnosti, p\u0159ibli\u017en\u011b jako planeta Venu\u0161e. V t\u00e9to dob\u011b v\u0161ak bude jen n\u011bkolik stup\u0148\u016f od Slunce a nebude pozorovateln\u00e1.<\/p>\n

Mnohem p\u0159\u00edzniv\u011bj\u0161\u00ed pro pozorov\u00e1n\u00ed komety bude dal\u0161\u00ed obdob\u00ed. Kometa se postupn\u011b bude vzdalovat od Slunce a okolo 11. \u0159\u00edjna se objev\u00ed na ve\u010dern\u00ed obloze za soumraku, kde by kolem 19:00 SEL\u010c mohla m\u00edt z\u00e1pornou jasnost (tzn., \u017ee bude velmi jasn\u00e1) a pom\u011brn\u011b jasn\u00fd ohon. Ka\u017ed\u00fdm dnem se bude na no\u010dn\u00ed oblohu dost\u00e1vat st\u00e1le v\u00fd\u0161. Dvan\u00e1ct\u00e9ho \u0159\u00edjna bude Zemi nejbl\u00ed\u017ee. Lid\u00e9 ji budou moci pozorovat vlevo od Arctura, jasn\u00e9 hv\u011bzdy, kterou snadno najdou, proto\u017ee k n\u00ed m\u00ed\u0159\u00ed zahnut\u00e1 oj Velk\u00e9ho vozu (ocas Velk\u00e9 Medv\u011bdice), viz p\u0159ilo\u017een\u00e1 mapka. Jasnost komety bude klesat, ov\u0161em viditelnost ohonu by se mohla zlep\u0161ovat. Obdob\u00ed hlavn\u00ed viditelnosti bude trvat zhruba do 20. \u0159\u00edjna, po kter\u00e9m zesl\u00e1bne z dosahu pouh\u00e9ho oka.<\/p>\n

(tz-av\u010dr)<\/strong><\/p>\n

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  V\u011bdci <\/p>\n","protected":false},"author":2,"featured_media":323348,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[128],"tags":[],"jetpack_featured_media_url":"https:\/\/zakrasnejsivimperk.cz\/wp-content\/uploads\/2024\/09\/26\/Kometa-aktualne-FOTO-Martin-Masek-Fyzikalni-ustav-AV-CR-2.jpg","_links":{"self":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/323346"}],"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=323346"}],"version-history":[{"count":4,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/323346\/revisions"}],"predecessor-version":[{"id":323546,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/posts\/323346\/revisions\/323546"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=\/wp\/v2\/media\/323348"}],"wp:attachment":[{"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=323346"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=323346"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zakrasnejsivimperk.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=323346"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}