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大紅斑與衛星艾奧

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發表於 2018-4-10 10:49:55 | 顯示全部樓層 |閱讀模式
木星 , 大紅斑與衛星艾奧
Jupiter, Big Red Spot & Io , apparent radius 21.6 sec, 2018/04/09 HKT:05h29m,
Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, Prime Focus, Losmandy G-11 Equatorial Mount with motor drive. Camera ASI 120MC CMOS Web Cam, frame size 640x480, Shoot at Gamma=50, Gain=50, Expo=32ms, 40 frames/sec, stack and process 801/1416 frames with Software RegiStax V.5, Lowest quality = 95%. get 97% Improvement. Color enhancement by Microsoft Photo. Atmospheric transparent : 7/10, Seeing : 7/10. Equipment borrowed from Mr.Ng. Taken at Kennedy Town 堅尼地城, Hong Kong.
Jupiter 2018 04 09 02 Rg 989in1416 Ms.jpg
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