澄海的環形壁

C.L.Chan

上邊是澄海 , 它下面彎彎的是它的環形壁, 這裡的太陽剛剛升起, 陽光斜照, 令平原的玄武岩皺摺更易察覺 .

Crater Rim of Mare Serenitatis, 2019/10/05 HKT: 19h28m,Telescope TEC Maksutov-CassegrainMC200/20, 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 Gain=45,Expo= 0.78ms/frame, Gamma=112, frame rate=33-106 frames/sec, avi format, stackand process 37% best frames in 550 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.