刻普勒的輻射紋

C.L.Chan

當地太陽的地平高度已超過60度, 刻普勒的輻射紋已很明顯. Kelper, UT 2020 11 27, 13h13m,Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, Losmandy G-11Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam, Capture withFireCapture, Shoot at Gamma=100, Gain=39, Expo= 0.193 ms/frame, avi format,stack and process 35% best frames in 1803 frames by free Software AutoStakkert3, wavelet with RegiStax V.6, Final touch by Microsoft Photo software.Atmospheric condition: Transparent: 8/10, Seeing : 8/10. Equipment borrowedfrom Mr. Ng. The photo was taken at Kennedy Town 堅尼地城,Hong Kong.