阿爾卑斯山脈
本帖最後由 C.L.Chan 於 2019-9-10 13:25 編輯阿爾卑斯山脈中的大山谷, 柏拉圖平底環形坑及雨海中的肥人.Crater Plato and Big Valley in Montes Alpes, 2019/09/09 HKT:20h27m, Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm,F.L.=400cm, Losmandy G-11 Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam, frame size 1280 x 960 px, Shoot at Gamma=112,Gain=45, Expo= 0.1ms/frame, frame rate=50-107 frames/sec, avi format, stack andprocess 50% best frames in 3859 frames, with Software AstroStackert 3 ,wavelet with RegiStax V.6 , Atmospheric condition : Transparent : 8/10,Seeing : 7/10. Equipment borrowedfrom Mr. Ng. Photo taken at Kennedy Town堅尼地城, Hong Kong.
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