木星與衛星

C.L.Chan

木星與衛星. Jupiter and its satellites, 2021/08/17 UT: 14h11m, Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm, F.L.= 400cm, Losmandy G-11 Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam, frame size 668 x 300 px, Shoot at Gamma=80, Gain=40, Expo= 0.53 ms/frame, frame rate=88 frames/sec, avi format, stack and process 60% best frames in 15913 frames, with Software AutoStakkert 3, wavelet with RegiStax V.6, final tough by Microsoft Photo, Atmospheric condition: Transparent: 8/10, Seeing: 8/10. Equipment borrowed from Mr. Ng. The photo was taken at Kennedy Town 堅尼地城, Hong Kong.