弟谷的西南一隅
弟谷(具中央小山的一個) 的西南一隅, South-west of the Moon. UT 2020 11 26, 12h08m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, Losmandy G-11 EquatorialMount with motor drive. Camera QHY 5III 224 Color Cam, Capture withFireCapture, Shoot at Gamma=100, Gain=40, Expo= 0.18ms/frame, avi format, stackand process 50% best frames in 1802 frames by free Software AutoStakkert 3,wavelet with RegiStax V.6, Final touch by Microsoft Photo software. Atmosphericcondition: Transparent: 8/10, Seeing : 8/10. Equipment borrowed from Mr. Ng.The photo was taken at Kennedy Town 堅尼地城, Hong Kong.
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