梅西耳隕坑的噴射紋

C.L.Chan

梅西耳隕坑的噴射紋, 照片中是”波濤洶湧”的豐富海的北端, 有兩個小形隕坑在其中央十分搶, 它用了大家很熟識的梅西耳來命名, 西邊的A坑有兩條向西長達100公里的噴射紋, 估計是隕石的入擊角度較低所造成. Messier Craters on Sea of Abundant. UT 2020/10/04: 17h41m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, Losmandy G-11 EquatorialMount with motor drive. Camera QHY 5III 224 Color Cam,  Shoot by FireCapture at Gamma=100, Gain=39,Expo= 0.46ms/frame, frame rate=8 frames/sec, RGB & avi format, stack andprocess 50% best frames in 1803 frames,­ with Software AstroStackert 3 withDSR, wavelet with RegiStax V.6,  finaltouch by Microsoft photo. Atmospheric condition: Transparent: 7­/10, Seeing:7/10, Equipment borrowed from Mr. Ng. The photo was taken at Kennedy Town堅尼地城, Hong Kong.