隕坑輻射紋第一名

C.L.Chan

隕坑輻射紋第一名, 當選月球南邊的弟谷隕坑, 其紋可覆蓋半個月面, Rays of Tycho, UT: 2020/11/02, 15h06m, Telescope: Astro Physics, Star 12 ED, D=12cm, F.L.=102cm, Prime Focus, Losmandy G-11 Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam, Shoot by FireCapture at Gamma=100, Gain=40, Expo= 0.26ms/frame, frame rate=100 frames/sec, RGB & avi format, stack and process 90% best frames in 1803 frames,­ with Software AstroStackert 3 with DSR, wavelet with RegiStax V.6, final touch by Microsoft photo. Atmospheric condition: Transparent: 8­/10, Seeing: 7/10, Equipment borrowed from Mr. Ng. The photo was taken at Kennedy Town堅尼地城, Hong Kong.