{"id":3048,"date":"2024-10-13T12:28:23","date_gmt":"2024-10-13T10:28:23","guid":{"rendered":"https:\/\/www.astro-novinky.eu\/?p=3048"},"modified":"2024-10-13T12:28:23","modified_gmt":"2024-10-13T10:28:23","slug":"vyrazna-kometa-na-vecerni-obloze","status":"publish","type":"post","link":"https:\/\/www.astro-novinky.eu\/index.php\/2024\/10\/13\/vyrazna-kometa-na-vecerni-obloze\/","title":{"rendered":"V\u00fdrazn\u00e1 kometa na ve\u010dern\u00ed obloze"},"content":{"rendered":"
\"Sn\u00edmek<\/a>
Sn\u00edmek komety C\/2023 A3 Tsuchinshan-ATLAS ze slovensk\u00e9ho Sabinova za soumraku n\u00edzko nad z\u00e1padn\u00edm obzorem 12. \u0159\u00edjna 2024. Foto: Petr Hor\u00e1lek\/F\u00da v Opav\u011b.<\/figcaption><\/figure>\n

Na ve\u010dern\u00ed obloze se objevuje dlouho o\u010dek\u00e1van\u00e1 kometa C\/2023 A3 Tsuchinshan-ATLAS, kter\u00e1 by v\u00a0n\u00e1sleduj\u00edc\u00edch ve\u010derech mohla b\u00fdt jednou z\u00a0nejjasn\u011bj\u0161\u00edch komet pozorovateln\u00fdch na severn\u00ed zemsk\u00e9 polokouli za posledn\u00ed des\u00edtky let. Kometu lze vyhl\u00ed\u017eet zat\u00edm jen za soumraku triedrem, v\u00a0pr\u016fb\u011bhu stm\u00edv\u00e1n\u00ed se pak d\u00e1 sledovat u\u017e i pouh\u00fdma o\u010dima. K\u00a0pozorov\u00e1n\u00ed je p\u0159itom zapot\u0159eb\u00ed krom\u011b jasn\u00e9ho po\u010das\u00ed dokonale odkryt\u00fd z\u00e1padn\u00ed obzor \u2013 kometa se nach\u00e1z\u00ed jen velmi n\u00edzko nad n\u00edm.<\/p>\n

Tiskov\u00e1 zpr\u00e1va Fyzik\u00e1ln\u00edho \u00fastavu v Opav\u011b z 13. \u0159\u00edjna 2024.<\/em><\/p>\n

Objev komety<\/h4>\n

Kometu objevily nez\u00e1visle na sob\u011b dv\u011b p\u0159ehl\u00eddkov\u00e9 observato\u0159e. Syst\u00e9m ATLAS (Asteroid Terrestrial-impact Last Alert System) v Ji\u017en\u00ed Africe ji na\u0161el jako malou mlhavou skvrnku 22. \u00fanora 2023 a ten sam\u00fd objekt se poda\u0159ilo zp\u011btn\u011b dohledat v pozorov\u00e1n\u00ed \u010d\u00ednsk\u00e9 observato\u0159e Zijin Shin nebo Tsuchinshan (v p\u0159ekladu Purpurov\u00e1 hora). Tamn\u00ed teleskop poprv\u00e9 objekt zachytil u\u017e 9. ledna 2023. Zp\u011btn\u011b se kometu poda\u0159ilo naj\u00edt i na sn\u00edmc\u00edch syst\u00e9mu ZTF (Zwicky Transient Facility) na observato\u0159i Palomar, a to u\u017e z 22. prosince 2022. U\u017e tehdy na sn\u00edmc\u00edch projevovala nev\u00fdraznou komet\u00e1rn\u00ed aktivitu, co\u017e definitivn\u011b potvrdilo, \u017ee nejde o asteroid, ale o kometu. V dob\u011b objevu m\u011bla kometa 18. hv\u011bzdnou velikost a le\u017eela od Slunce zhruba 7,3 astronomick\u00e9 jednotky daleko (v\u00edce jak miliardu kilometr\u016f daleko).<\/p>\n

Zachycena i na denn\u00ed obloze<\/h4>\n
\"Sn\u00edmek<\/a>
Sn\u00edmek komety C\/2023 A3 Tsuchinshan-ATLAS a filtrem zakryt\u00e9ho Slunce 8. \u0159\u00edjna 2024 na denn\u00ed obloze z m\u011bsta Lokca na Slovensku. Foto: Petr Hor\u00e1lek\/F\u00da v Opav\u011b.<\/figcaption><\/figure>\n

V\u00a0p\u00e1tek 27. z\u00e1\u0159\u00ed 2024 prolet\u011bla kometa p\u0159\u00edslun\u00edm<\/strong>, nejbl\u00ed\u017ee ke Slunci se octla v na\u0161ich ve\u010dern\u00edch hodin\u00e1ch na vzd\u00e1lenost 0,391 astronomick\u00e9 jednotky<\/strong> (58,6 milionu km, tedy o n\u011bco d\u00e1l, ne\u017e se u Slunce ocit\u00e1 planeta Merkur). V\u00a0t\u00e9 dob\u011b byla pozorovateln\u00e1 zejm\u00e9na na ji\u017en\u00ed obloze, a\u010dkoliv za velmi dobr\u00fdch podm\u00ednek se dala za jasn\u00e9ho sv\u00edt\u00e1n\u00ed zachytit i u n\u00e1s.<\/p>\n

Velmi zaj\u00edmav\u00e1 situace p\u0159itom nastala okolo 9. \u0159\u00edjna<\/strong>, kdy se kometa na sv\u00e9 dr\u00e1ze octla t\u00e9m\u011b\u0159 na p\u0159\u00edmce mezi Zem\u00ed a Sluncem a d\u00edky tzv. dop\u0159edn\u00e9mu rozptylu slune\u010dn\u00edho z\u00e1\u0159en\u00ed na prachov\u00fdch \u010d\u00e1stic\u00edch v\u00a0jej\u00edm ohonu zjasnila natolik, \u017ee ji bylo mo\u017en\u00e9 fotograficky zaznamenat na denn\u00ed obloze<\/strong>. K\u00a0Zemi se kometa nejv\u00edce p\u0159ibl\u00ed\u017eila 12. \u0159\u00edjna<\/strong> odpoledne, a to na vzd\u00e1lenost 0,472 astronomick\u00e9 jednotky (necel\u00fdch 71 milion\u016f km, tedy zhruba 184kr\u00e1t d\u00e1l, ne\u017e je od n\u00e1s M\u011bs\u00edc). Od Zem\u011b se tedy kometa u\u017e jen vzdaluje a bude pozvolna sl\u00e1bnout.<\/p>\n

Vyhl\u00ed\u017eejte za soumraku<\/h4>\n

Kometa se nyn\u00ed nach\u00e1z\u00ed \u00fahlov\u011b bl\u00edzko Slunce a je pozorovateln\u00e1 jen za soumraku nad z\u00e1padn\u00edm obzorem. <\/strong>Na pozorov\u00e1n\u00ed je t\u0159eba si naj\u00edt m\u00edsto s\u00a0dokonale odkryt\u00fdm z\u00e1padn\u00edm obzorem a velmi vhodnou pom\u016fckou je i binokul\u00e1r nebo mysliveck\u00fd triedr. Zhruba 35 minut po z\u00e1padu Slunce lze kometu vyhledat triedrem jako mlhavou skvrnku s\u00a0jasnou bodovou hlavou. Jakmile se v\u00edce setm\u00ed, kometa se bude d\u00e1t spat\u0159it i pouh\u00fdma o\u010dima. Ka\u017ed\u00fd den nav\u00edc zapad\u00e1 pozd\u011bji. Zat\u00edmco 14. \u0159\u00edjna bude zapadat zhruba dv\u011b hodiny po z\u00e1padu Slunce, 17. \u0159\u00edjna ji\u017e v\u00edce jak 3 hodiny pot\u00e9, co Slunce zapadne.<\/p>\n

Nejzaj\u00edmav\u011bj\u0161\u00ed obdob\u00ed pro pozorov\u00e1n\u00ed komety bude prob\u00edhat a\u017e do konce \u0159\u00edjna 2024<\/strong>, kdy se kometa sice bude od n\u00e1s vzdalovat, na obloze pozvolna sl\u00e1bnout, ale z\u00e1rove\u0148 se bude vzdalovat od Slunce a p\u0159esouvat na tmavou oblohu. Zhruba od 18. \u0159\u00edjna p\u0159estane na ve\u010dern\u00ed obloze ru\u0161it sv\u00fdm svitem M\u011bs\u00edc, kter\u00fd po \u00fapl\u0148ku za\u010dne vych\u00e1zet \u010d\u00edm d\u00e1l pozd\u011bji v\u00a0noci a p\u0159i pozorov\u00e1n\u00ed komety tak nebude ru\u0161it. Jedinou komplikac\u00ed tak bude sv\u011bteln\u00e9 zne\u010di\u0161t\u011bn\u00ed z\u00a0m\u011bst a nep\u0159edv\u00eddateln\u00e9 po\u010das\u00ed. Voln\u00fdm okem na tmav\u00e9 daleko od m\u011bst by m\u011bla b\u00fdt pozorovateln\u00e1 je\u0161t\u011b do za\u010d\u00e1tku listopadu 2024, mal\u00fdmi dalekohledy pak a\u017e do po\u010d\u00e1tku prosince 2024.<\/p>\n

\"Poloha<\/a>
Poloha komety C\/2023 A3 Tsuchinshan-ATLAS na ve\u010dern\u00ed obloze do 22. \u0159\u00edjna 2024 v\u017edy po 19. hodin\u011b SEL\u010c. Zdroj: Petr Hor\u00e1lek\/Stellarium\/F\u00da v Opav\u011b.<\/figcaption><\/figure>\n

Pokuste se ji vyfotit<\/h4>\n

Obecn\u011b je pot\u0159eba se na focen\u00ed komety vybavit p\u0159edev\u0161\u00edm pevn\u00fdm byteln\u00fdm stativem. Lze ji fotit i na chytr\u00e9 telefony s\u00a0nastavitelnou dobou expozice (je t\u0159eba volit expozice v\u00a0\u0159\u00e1du i n\u011bkolika sekund a m\u00edt mo\u017enost manu\u00e1ln\u011b doost\u0159it). Kr\u00e1sn\u011bj\u0161\u00ed fotky ale budou vznikat p\u0159i focen\u00ed citliv\u00fdm apar\u00e1tem (ide\u00e1ln\u011b plnoform\u00e1tov\u00e1 zrcadlovka \u010di bezzrcadlovka) a sv\u011bteln\u00fdm objektivem (podle jasnosti komety n\u011bjak\u00fd objektiv s ohniskovou vzd\u00e1lenost\u00ed 30 a 300 milimetry, sv\u011btelnost ide\u00e1ln\u011b f1.4, dosta\u010duj\u00edc\u00ed je je\u0161t\u011b 2.8). V\u00a0prvn\u00edch dnech \u2013 zhruba do 17. \u0159\u00edjna \u2013 posta\u010d\u00ed fotit kr\u00e1tk\u00e9, \u0159\u00e1dov\u011b jen sekundov\u00e9 expozice. Jak se octne kometa na tmav\u00e9 obloze, tedy po \u00fapl\u0148ku, bude mo\u017en\u00e9 zaznamenat proti tmav\u00e9mu nebi i struktury v\u00a0jej\u00edm ohonu. K\u00a0takov\u00e9mu focen\u00ed je u\u017e t\u0159eba p\u0159istupovat sofistikovan\u011bji. V\u00edce informac\u00ed najdete na https:\/\/www.astro-novinky.eu\/index.php\/kometa-2024\/<\/a> nebo na facebookov\u00e9m port\u00e1lu Minutky z\u00a0vesm\u00edru (https:\/\/www.facebook.com\/MinutkyZVesmiru\/<\/a>).<\/p>\n

Zdroje a doporu\u010den\u00e9 odkazy:<\/h4>\n

[1] Podrobn\u00e9 informace o viditelnosti komety na Astro-Novinky.eu<\/a><\/u>
\n[2] Kometa C\/2023 A3 (Tsuchinshan\u2013ATLAS) (Wiki)<\/a>
\n[3] Velk\u00e1 galerie komety C\/2023 A3 (Tsuchinshan\u2013ATLAS) na Spaceweather.com<\/a><\/u>
\n[4] Aktu\u00e1ln\u00ed poloha komety (Tsuchinshan\u2013ATLAS) \u2013 The Sky Live
\n<\/a><\/u>[5] O komet\u011b na str\u00e1nce Seiichi Yoshidy<\/a>
\n[6] O komet\u011b na str\u00e1nce Gideon van Buitenena<\/a><\/p>\n

Kontakty a dal\u0161\u00ed informace:<\/h4>\n

Mgr. Petr Hor\u00e1lek<\/strong>
\nPR v\u00fdstup\u016f evropsk\u00fdch projekt\u016f F\u00da SU v\u00a0Opav\u011b<\/em>
\nEmail: petr.horalek@slu.cz
\n<\/a>Telefon: +420\u00a0732\u00a0826\u00a0853<\/p>\n

RNDr. Tom\u00e1\u0161 Gr\u00e1f,\u00a0Ph.D.<\/strong>
\nFyzik\u00e1ln\u00ed \u00fastav SU v<\/em>\u202f<\/em>Opav<\/em>\u011b<\/em>,<\/em>\u00a0<\/em>vedouc<\/em>\u00ed\u00a0<\/em>observato<\/em>\u0159<\/em>e WHOO! a Unisf<\/em>\u00e9<\/em>ry<\/em>
\nEmail:\u00a0tomas.graf@fpf.slu.cz<\/a>
\nTelefon: +420 553 684\u202f548<\/p>\n

Bc. Lucie Dospivov\u00e1<\/strong>
\nRefer\u00e1t pro vn\u011bj\u0161\u00ed vztahy S\u00da v Opav\u011b<\/em>
\nEmail: lucie.dospivova@physics.slu.cz<\/a>
\nTelefon: +420 553 684\u00a0214<\/p>\n","protected":false},"excerpt":{"rendered":"

Na ve\u010dern\u00ed obloze se objevuje dlouho o\u010dek\u00e1van\u00e1 kometa C\/2023 A3 Tsuchinshan-ATLAS, kter\u00e1 by v\u00a0n\u00e1sleduj\u00edc\u00edch ve\u010derech mohla b\u00fdt jednou z\u00a0nejjasn\u011bj\u0161\u00edch komet<\/p>\n","protected":false},"author":6,"featured_media":3051,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","video_url":"","footnotes":""},"categories":[26,27,30],"tags":[],"class_list":["post-3048","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aktuality","category-clanky","category-ukazy"],"yoast_head":"\nV\u00fdrazn\u00e1 kometa na ve\u010dern\u00ed obloze - 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\/2024\/10\/13\/vyrazna-kometa-na-vecerni-obloze\/\" \/>\n<meta property=\"og:locale\" content=\"sk_SK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"V\u00fdrazn\u00e1 kometa na ve\u010dern\u00ed obloze - 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