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Zákryt Jasné Hvězdy Saturnem

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Zákryt Jasné Hvězdy Saturnem Zákrytová a astrometrická sekce ČAS leden 2006 (1) Zajímavosti: NENECHTE SI UJÍT Zákryt jasné hv ězdy Saturnem 25. ledna 2006 ve čer mimo jiné i Evropu čeká velice zajímavá ř ě Č podívaná. Planeta Saturn okrášlená prstencem p řejde p řes relativn ě Situace, jak vypadá p i pohledu z hv zdy. asy udávané v malé vložené ě ě č jasnou hv ězdu a ze Zem ě budeme mít možnost sledovat nejen zákryt tabulce jsou platné pro Mainz (N mecko). Pro jiná místa v Evrop jsou asy v tabulce za článkem. stálice vlastní planetou, ale i její poblikávání za jednotlivými prstenci. Velice zajímavé bude jist ě pokusit se celý úkaz nahrát speciálními videokamerami v ohnisku dlouhofokálních teleobjektiv ů či dalekohled ů. Zajímavá a nevšední podívaná však čeká jist ě i na ty, kdo se na úkaz budou chtít pouze vizuáln ě podívat. Lednový zákryt hv ězdy Saturnem je jist ě zajímavou údálostí, ale nemá p říliš velkou publicitu. Úkaz bude viditelný z Evropy, Afriky a Asie. P řičemž z jižní Afriky bude možno sledovat pouze zákryty hv ězdy prstenci a zákryt vlastní planetou tuto oblast již mine. U nás, ve st řední Evrop ě, by úkaz m ěl za čít v 18:45 UT, kdy se hv ězda dostane k vn ějšímu okraji soustavy prstenc ů. V tom čase bude planeta již dostate čně vysoko nad východním obzorem (h=26°; A=92°). Zákryt Pr ůchod hv ězdy oblastí systému satelit ů planety Saturn p ři pohledu ze Země kotou čkem planety pak nastane v intervalu 20:08 UT (D – vstup) až 20:49 (R – (geocentrický pohled). Pozice satelit ů se vztahují k času 20:24UT 25. 1. 2006. výstup). To se již Saturn p řesune vysoko na jihovýchodní nebe (h D=40°; A D=109°; K údaj ům v ní je možno pouze poznamenat, že čísla prstenc ů ozna čují okraje hR=46°; A R=119°). Celý zákryt se uskute ční na tmavé obloze bez toho aby jeho jednotlivých výrazných pás ů, p řičemž oblasti 4 a 3 vymezují tzv. Cassiniho d ělení sledování rušil soumrak. Konec astronomického soumraku (h S=-18°) p řipadá na čas 17:35 UT. (mezeru). Asi nejp řístupn ějším zp ůsobem jak se s pr ůběhem zákrytu seznámit jsou dva Pravd ěpodobn ě nejv ětším problémem pro v ětšinu pozorovatel ů bude odhalit obrázky zpracované programem winOccult a následná tabulka obsahující údaje pro hv ězdu s jasností Mv=7,9 mag v blízkosti jasné planety a jejích prstenc ů (-0,2 několik Evropských m ěst (prost řední dvojstrana). U obrázk ů je zpracování mag). Hv ězda bude jen neznateln ě jasn ější než Saturn ův m ěsíc Titan (k datu předpov ědi geocentrické. Pro up řesn ění je pak možno použít p řipojenou tabulku zákrytu 8,4 mag). Snad by mohlo být výhodné jak p ři vizuálním pozorování tak i po čítanou samoz řejm ě topocentricky pro jednotlivá uvád ěná místa. při po řizování videozáznamu užít n ějaký filtr, ale jaký konkrétn ě nebylo v žádném zdrojovém popisu úkazu uvedeno. Occultation of HIP 42705 by Saturn on 2006 Jan 25 Location Long. Latit. Ring 5 Ring 4 Ring 3 D R Ring 1 Ring 2 Ring 3 Ring 4 Ring 5 o ' o ' h m h m h m h m h m h m h m h m h m h m Amsterdam Nether + 4 54.3 +52 20.6 18 45.2 18 57.4 19 2.1 20 7.7 20 50.4 .. .... .. .... 20 8.2 20 12.9 20 25.2 Athens Greece + 23 43.2 +37 58.4 18 45.5 18 58.3 19 3.4 20 10.0 20 47.1 .. .... .. .... 20 3.1 20 8.2 20 21.1 Barcelona Spain + 2 9.6 +41 23.2 18 45.9 18 58.5 19 3.4 20 9.9 20 49.1 .. .... .. .... 20 5.6 20 10.5 20 23.1 Belfast Nor Irel - 5 55.0 +54 35.0 18 45.2 18 57.3 19 1.9 20 7.4 20 51.1 .. .... .. .... 20 9.4 20 14.0 20 26.1 Beograd Yugoslav + 20 30.8 +44 48.2 18 45.3 18 57.8 19 2.7 20 8.8 20 48.5 .. .... .. .... 20 5.4 20 10.3 20 22.8 Berlin Germany + 13 6.4 +52 24.4 18 45.1 18 57.3 19 2.0 20 7.6 20 50.9 .. .... .. .... 20 7.8 20 12.5 20 24.8 Bologna Italy + 11 20.5 +44 28.1 18 45.5 18 58.1 19 3.0 20 9.1 20 49.0 .. .... .. .... 20 5.8 20 10.7 20 23.2 Bordeaux France - 0 34.0 +44 50.0 18 45.7 18 58.2 19 3.0 20 9.2 20 49.7 .. .... .. .... 20 6.7 20 11.5 20 24.0 Brno Czech Repub + 16 35.3 +49 12.3 18 45.2 18 57.5 19 2.3 20 8.1 20 49.4 .. .... .. .... 20 6.8 20 11.6 20 24.0 Brussels Belgium + 4 20.6 +50 47.7 18 45.3 18 57.6 19 2.3 20 8.0 20 50.2 .. .... .. .... 20 7.9 20 12.6 20 24.9 Bucharest Romani + 26 5.8 +44 24.8 18 45.1 18 57.7 19 2.6 20 8.6 20 48.1 .. .... .. .... 20 5.0 20 9.9 20 22.5 Budapest Hungary + 19 3.9 +47 29.1 18 45.2 18 57.6 19 2.5 20 8.3 20 49.0 .. .... .. .... 20 6.2 20 11.1 20 23.5 Copenhagen Denma + 12 34.6 +55 41.2 18 44.9 18 57.0 19 1.7 20 7.0 20 50.4 .. .... .. .... 20 8.6 20 13.3 20 25.4 Dresden Germany + 13 52.3 +51 3.0 18 45.1 18 57.4 19 2.2 20 7.8 20 49.7 .. .... .. .... 20 7.5 20 12.2 20 24.5 Dublin Ireland - 6 15.0 +53 20.0 18 45.3 18 57.4 19 2.1 20 7.6 20 51.0 .. .... .. .... 20 9.1 20 13.8 20 25.9 Duesseldorf Germ + 6 45.7 +51 12.4 18 45.3 18 57.5 19 2.2 20 7.9 20 50.1 .. .... .. .... 20 7.9 20 12.6 20 24.8 Frankfurt German + 8 39.0 +50 8.5 18 45.3 18 57.6 19 2.3 20 8.1 20 49.9 .. .... .. .... 20 7.5 20 12.2 20 24.5 Gdansk Poland + 18 39.0 +54 21.3 18 44.8 18 57.0 19 1.7 20 7.1 20 49.9 .. .... .. .... 20 8.0 20 12.7 20 24.9 Geneva Switzerla + 6 8.2 +46 18.4 18 45.5 18 58.0 19 2.8 20 8.9 20 49.5 .. .... .. .... 20 6.7 20 11.5 20 23.9 Glasgow Scotland - 4 18.3 +55 54.1 18 45.1 18 57.2 19 1.8 20 7.1 20 51.2 .. .... .. .... 20 9.6 20 14.1 20 26.2 Goteborg Sweden + 11 53.6 +57 46.7 18 44.8 18 56.9 19 1.5 20 6.6 20 50.6 .. .... .. .... 20 9.2 20 13.7 20 25.8 Graz Austria + 15 26.9 +47 4.6 18 45.3 18 57.8 19 2.6 20 8.5 20 49.1 .. .... .. .... 20 6.3 20 11.1 20 23.6 Hamburg Germany + 9 58.4 +53 33.1 18 45.1 18 57.3 19 2.0 20 7.4 20 50.3 .. .... .. .... 20 8.3 20 12.9 20 25.1 Hannover Germany + 9 42.8 +52 23.3 18 45.1 18 57.4 19 2.1 20 7.6 20 50.1 .. .... .. .... 20 8.0 20 12.7 20 24.9 Helsinki Finland + 24 57.3 +60 9.7 18 44.4 18 56.4 19 0.9 20 5.9 20 50.3 .. .... .. .... 20 9.2 20 13.7 20 25.7 Istanbul Turkey + 28 57.9 +41 0.7 18 45.1 18 57.9 19 2.8 20 9.1 20 47.3 .. .... .. .... 20 3.8 20 8.8 20 21.5 Kiev Ukraine + 30 29.9 +50 27.2 18 44.7 18 57.0 19 1.8 20 7.3 20 48.8 .. .... .. .... 20 6.6 20 11.3 20 23.6 Krakow Poland + 19 49.6 +50 3.3 18 45.0 18 57.4 19 2.1 20 7.8 20 49.3 .. .... .. .... 20 6.9 20 11.7 20 24.0 Leipzig Germany + 12 23.5 +51 20.1 18 45.1 18 57.4 19 2.2 20 7.8 20 49.9 .. .... .. .... 20 7.6 20 12.3 20 24.6 Lisbon Portugal - 9 11.2 +38 42.7 18 46.1 18 58.7 19 3.7 20 10.4 20 49.4 .. .... .. .... 20 5.7 20 10.6 20 23.3 Liverpool Englan - 3 4.3 +53 24.1 18 45.2 18 57.4 19 2.1 20 7.6 20 50.9 .. .... .. .... 20 8.9 20 13.6 20 25.7 Ljubljana Sloven + 14 28.2 +46 2.8 18 45.4 18 57.9 19 2.7 20 8.7 20 49.0 .. .... .. .... 20 6.1 20 10.9 20 23.4 London England - 0 10.0 +51 30.0 18 45.3 18 57.6 19 2.3 20 7.9 20 50.5 .
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