土星

C.L.Chan

土星, Saturn, UT: 2021/08/17 14h39m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, F.L.= 400cm, Losmandy G-11 EquatorialMount with motor drive. Camera QHY 5III 224 Color Cam, frame size 400 x 292 px,Shoot at Gamma=100, Gain=40, Expo= 2.964 ms/frame, frame rate=88 frames/sec,avi format, stack and process 75% best frames in 22070 frames, with SoftwareAutoStakkert 3, wavelet with RegiStax V.6, final tough by Microsoft Photo,Atmospheric condition: Transparent: 8/10, Seeing: 8/10. Equipment borrowed fromMr. Ng. The photo was taken at Kennedy Town 堅尼地城, Hong Kong.