陽低地貌顯, 日高斑紋現

C.L.Chan

陽低地貌顯, 日高斑紋現. 哥白尼隕坑的輻射紋, 是隕石爆炸時向四周拋出的新鮮衝擊沙石. Rays of Crater Copernicus, UT 2020/10/26: 16h23m, Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm, F.L.=400cm, LosmandyG-11 Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam,  Shoot by FireCapture at Gamma=100, Gain=28,Expo= 0.16ms/frame, frame rate=20 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 GIMP & Microsoft photo. Atmospheric condition: Transparent: 7­/10,Seeing: 6/10, Equipment borrowed from Mr. Ng. The photo was taken at KennedyTown堅尼地城, Hong Kong.