<<大風歌>>
本帖最後由 C.L.Chan 於 2020-11-26 09:47 編輯<<大風歌>>大風起兮雲飛狂,視寧難逢兮感徬惶,安得勇士兮守鏡旁.柏拉圖平底坑及阿爾卑斯大狹谷,Carter Plato & Vallis Alpes, UT 2020 11 25,12h57m, 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,Capture with FireCapture, Shoot at Gamma=100, Gain=40, Expo= 0.23ms/frame, aviformat, stack and process 25% best frames in 1800 frames by free SoftwareAutoStakkert 3, wavelet with RegiStax V.6, Final touch by Microsoft Photosoftware. Atmospheric condition: Transparent: 8/10, Seeing : 7/10. Equipmentborrowed from Mr. Ng. The photo was taken at Kennedy Town 堅尼地城, Hong Kong.
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