土星 ALPO-Japan Latest
Saturn Image 2023/08/11(UT)
森田光治,鶴海敏久,伊藤了史,堀内 直,皆川伸也
Randy Tatum,John Sussenbach,Christophe Pellier,Raimondo Sedrani
M.Morita,T.Tsurumi,S.Ito,T.Horiuchi,N.Minagawa,R.Tatum,J.Sussenbach,Christophe.P,R.Sedrani
比較的良いシーイングに恵まれた。エンケの間隙が確認できたが，土星表面に大きな変化は観察できなかった。
We were blessed with relatively good seeing.
Enke's gap was visible,but no major changes were observed on Saturn's surface.
≪滋賀県守山市 森田光治≫[Mitsuji Morita:Siga Japan]
≪岡山県岡山市 鶴海敏久≫[Toshihisa Tsurumi:Okayama-City Okayama-Prefecture Japan]
≪愛知県 春日井市 伊藤了史≫[Satoshi Ito. Kasugai City,Aichi,Japan]
《京都府宇治市、堀内直》[T.Horiuchi: Uji- City Kyoto Japan]
≪東京都 立川市 皆川伸也≫[Nobuya Minagawa:Tokyo Japan]
Seeing was quite variable with some local heating issues. Possible dark condensation in the NTB in IR. I used Firecapture,Registax 5 and Photoshop CS2 for processing.
[ Randy Tatum,Richmond,VA U.S.A]
[スセンバッハ:オランダ]
[John Sussenbach:Houten,Netherlands]
I'm back from my 2023 mission at the AstroQueyras observatory,and we have benefited from two good nights,one being incredible. Here is a selection of the best images taken from both nights. I have been observing at the T620 (F/15 Cassegrain) instead of the T500.
Anthony Wesley observed a spoke on ring B recently,and some have been caught as well here,with Ic and CH4 filters !
Many subtle details can be see on the animations. The animation technique is very powerful for Saturn,since the smallest details are often hard to confirm on a still image... Note some bright CH4 spots on the EZ,I didn't think it was possible to observe activity on that band...
The camera is used at prime focus without any barlow. Added to the altitude of the site which almost reaches 3000 meters,it makes UV imaging more easy. I am using now a quite "extreme" UV filter along with the usual Johnson U,the U340 from Asahi Spectra. I detect an evolution of the albedo of the planet with the 340 filter,where the EZ is darker,and the rest of the globe slightly brighter (this can be see on the HST images between the F395N and the F343M)
[Christophe Pellier Bruz City,France]
[Raimondo Sedrani : Pordenone,Italy]
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