C.L.Chan 發表於 2019-11-6 14:13:51

四葉草隕坑

四葉草, 靠近月球北極區的 .Meton隕坑4 leaves glass –Meton Crater, 20h09m, TelescopeTEC Maksutov-Cassegrain MC200/20, D=20cm, F.L.= 400cm, Losmandy G-11 EquatorialMount with motor drive. Camera QHY 5III 224 Color Cam, frame size 1280 x 960px, Shoot at Gain=40, Expo= 0.5ms/frame, Gamma=112, frame rate=33-106frames/sec, avi format, stack and process 25% best in 2562 frames, withSoftware AutoStakkert 3 , wavelet with RegiStax V.6 , Atmospheric condition :Transparent : 8/10, Seeing : 7/10. Equipment borrowed from Mr. Ng. Photo takenat Kennedy Town 堅尼地城, Hong Kong.
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