三兄弟今日去直壁旅行
三兄弟今日去直壁旅行.3 brothers visiting straight wall, 2019/11/06 HKT: 19h52m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, F.L.= 400cm, Losmandy G-11 EquatorialMount with motor drive. Camera QHY 5III 224 Color Cam, frame size 1280 x 960px, Shoot at Gain=40, Expo= 0.7ms/frame, Gamma=112, frame rate=33-106frames/sec, avi format, stack and process 29% best in 2005 frames, withSoftware AutoStakkert 3 , wavelet with RegiStax V.6 , Atmospheric condition :Transparent : 8/10, Seeing : 7/10. Equipment borrowed from Mr. Ng. Photo takenat Kennedy Town 堅尼地城, Hong Kong.
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