” 視寧度” 及” 透明度”, 何者熟優?

C.L.Chan

一直都知道大氣的優質” 視寧度”及” 透明度”, 但不知何者熟優. 在一個” 雲與清風可以常擁有” 的晚上,木星像個變形蟲. “你知道我在等你嗎?”只要等到幾分鐘 “風不繼續吹”,  視寧好了, 美麗細緻的木星, 在監控的電腦瑩幕已可看到. 良好的”透明度” 更為重要.

Jupiter, UT: 2021/08/26, 15h43m,Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm, F.L.= 400cm, Losmandy G-11Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam, frame size304x296 px, Shoot at Gamma=80, Gain=20, Expo= 5 ms/frame, frame rate=80frames/sec, SER format, stack, debayer and process 90% best frames in 13022frames, with Software AutoStakkert 3, wavelet with RegiStax V.6, final tough byMicrosoft Photo, Atmospheric condition: Transparent: 9/10, Seeing: 8/10.Equipment borrowed from Mr. Ng. The photo was taken at Kennedy Town 堅尼地城, Hong Kong.