洪寶海

C.L.Chan

這晚趁天平動的效應, 把洪寶海(右面的月邊黑色長橢形) 張得比較大時, 拍照留念.  Mare Humbodti at right, UT: 2020/11/20, 11h22m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, Losmandy G-11 EquatorialMount with motor drive. Camera QHY 5III 224 Color Cam,  Shoot by FireCapture at Gamma=100, Gain=42Expo= 0.4ms/frame, frame rate=30 frames/sec, RGB & avi format, stack andprocess 50% best frames in 1794 frames,­ with Software AstroStackert 3 withDSR, wavelet with RegiStax V.6,  finaltouch by GIMP & Microsoft photo. Atmospheric condition: Transparent: 8­/10,Seeing: 8/10, Equipment borrowed from Mr. Ng. The photo was taken at KennedyTown堅尼地城, Hong Kong.