一對三胞胎

C.L.Chan

一對三胞胎, 聚於¤ë球的南部山區. Triplets x 2, 2021/08/16 UT: 12h29m, 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 Gamma=100,Gain=40, Expo= 0.323 ms/frame, frame rate=30 frames/sec, avi format, stack andprocess 70% best frames in 2695 frames, with Software AutoStakkert 3, waveletwith RegiStax V.6, final tough by Microsoft Photo, Atmospheric condition:Transparent: 8/10, Seeing: 7/10. Equipment borrowed from Mr. Ng. The photo wastaken at Kennedy Town 堅尼地城, Hong Kong.