哥倫布隕坑

C.L.Chan

中央平地是豐富海的南部, 圖中左上角一個具環形中央小山的就是西班牙航海家哥倫布隕坑 (Crater Colombo) Southen shore of the Sea of Abundance. UT: 2020/11/02, 14h22m, Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, LosmandyG-11 Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam,  Shoot by FireCapture at Gamma=100, Gain=40,Expo= 0.28ms/frame, frame rate=20 frames/sec, RGB & avi format, stack andprocess 35% best frames in 1803 frames,­ with Software AstroStackert 3 withDSR, wavelet with RegiStax V.6,  finaltouch by GIMP & Microsoft photo. Atmospheric condition: Transparent: 8­/10,Seeing: 7/10, Equipment borrowed from Mr. Ng. The photo was taken at KennedyTown堅尼地城, Hong Kong.