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今年火星冲, 難得無雲夜, 雖然北風勁吹, 視寧度不好, 在下半夜起雲前攝得連續5小時的火星自轉. Mars Rotation, UT 2020/10/26: 11h39m to 16h58m,Telescope TEC Maksutov-Cassegrain MC200/20,D=20cm, F.L.=400cm, Losmandy G-11 Equatorial Mount with motor drive. Camera QHY5III 224 Color Cam, Shoot by FireCaptureat Gamma=100, Gain=26, Expo= 1 ms/frame, frame rate=100 frames/sec, RGB &avi format, stack and process 25% best frames in 15000 to 20000 frames, withSoftware AstroStackert 3 with DSR, wavelet with RegiStax V.6, final touch by Microsoft photo. Atmosphericcondition: Transparent: 9/10, Seeing: 5/10, Equipment borrowed from Mr. Ng.The photo was taken at Kennedy Town堅尼地城, Hong Kong.
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發表於 2020-10-27 11:55:52