北邊的冷海

C.L.Chan

月球北邊的冷海 , 下面是阿爾卑斯山脈及其中的柏拉圖平底隕坑.

Sea of Cold, 2019/11/07 HKT: 22h40m, 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= 0.3 ms/frame, Gamma=112, frame rate=33-106frames/sec, avi format, stack and process 24% best in 1964 frames, with SoftwareAutoStakkert 3 , wavelet with RegiStax V.6, final touch by Microsoft Photo,Atmospheric condition : Transparent : 8/10, Seeing : 7/10. Equipment borrowedfrom Mr. Ng. Photo taken at Kennedy Town 堅尼地城, Hong Kong.