阿爾卑斯大峽谷(右下斜走)中的月溪

C.L.Chan

原來農曆初八, 也是拍攝阿爾卑斯大峽谷(右下斜走)中的月溪的好日子. 上邊是月球北部, 中為冷海.
Sea of Cold, Plato, and Vallis Apes. UT 2020 07 28, 20h16m, 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, Capture with FireCapture, Shoot at Gamma=100, Gain=40, Expo= 0.18ms/frame, avi format, stack and process 50% best frames in 1801 frames by free Software AutoStakkert 3, wavelet with RegiStax V.6, Final touch by Microsoft Photo software. Atmospheric condition: Transparent: 7¬/10, Seeing : 8/10. Equipment borrowed from Mr. Ng. The photo was taken at Kennedy Town 堅尼地城, Hong Kong.