普罗克洛斯陨石坑
本帖最後由 C.L.Chan 於 2020-11-4 10:33 編輯普罗克洛斯陨石坑（Proclus Crater）頗年輕, 只有11億歲, 也有明顯的輻射紋. 它介乎危海(右) 與夢沼之間. UT 2020/10/31: 16h27m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, Losmandy G-11 equatorial mount with motor drive. Camera QHY 5III 224 Color Cam,Shoot by FireCapture at Gamma=100, Gain=28,Expo= 0.16ms/frame, frame rate=20 frames/sec, RGB & avi format, stack and process 40% best frames in 1803 frames, with Software AstroStackert 3 withDSR, wavelet with RegiStax V.6,final touch by GIMP & Microsoft photo. Atmospheric condition: Transparent: 7/10, Seeing: 6/10, Equipment borrowed from Mr. Ng. The photo was taken at KennedyTown堅尼地城, Hong Kong.
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