在冷海南岸避暑的亞里士多德.

C.L.Chan

在冷海南岸避暑的亞里士多德.

Aristoteles at the southern side of Sea of Cold,2019/11/04 HKT: 20h08m, Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm,F.L.= 400cm, Losmandy G-11 Equatorial Mount with motor drive. Camera QHY 5III224 Color Cam, frame size 1280 x 960 px, Shoot at Gain=40, Expo= 0.5ms/frame,Gamma=112, frame rate=33-106 frames/sec, avi format, stack and process 22% bestin 2325 frames, with Software AutoStakkert 3 , wavelet with RegiStax V.6 ,Atmospheric condition : Transparent : 8/10, Seeing : 7/10. Equipment borrowedfrom Mr. Ng. Photo taken at Kennedy Town 堅尼地城, Hong Kong.