C.L.Chan 發表於 2018-4-3 10:22:25

木星及其大紅斑

木星及其大紅斑 , 視半徑 21.3秒 , (今年5月中旬最大為22.4秒)The Big Red Spot on Jupiter, apparent radius 21.3sec,2018/04/03 HKT:00h48m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, Prime Focus, Losmandy G-11Equatorial Mount with motor drive. Camera ASI 120MC CMOS Web Cam, frame size512x440 Shoot at 20 frames/sec, stack and process185 in 329 frames with Software RegiStax V.5.Atmospherictransparent :8/10, Seeing : 9/10. Equipmentborrowed from Mr.Ng. Taken at Kennedy Town 堅尼地城, Hong Kong.
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