中間是冷海

C.L.Chan

月球北區, 中間是冷海, 下為柏拉圖高原及柏拉圖環形坑. Sea of Cold. UT2020 11 26, 12h14m, Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm,F.L.=400cm, Losmandy G-11 Equatorial Mount with motor drive. Camera QHY 5III224 Color Cam, Capture with FireCapture, Shoot at Gamma=100, Gain=40, Expo= 0.2ms/frame,avi format, stack and process 25% best frames in 1802 frames by free SoftwareAutoStakkert 3, wavelet with RegiStax V.6, Final touch by Microsoft Photo software. 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.