阿爾泰斷崖

C.L.Chan

阿爾泰斷崖, 長427 km高1 km, 估計是酒海的外環殘壁, 這時是觀測的最佳時刻 , 滿月時反而看不到.

Rupes Altai, 2019/10/05 HKT: 19h52m,Telescope TEC Maksutov-Cassegrain MC200/20, D=20cm, F.L.= 400cm, LosmandyG-11 Equatorial Mount with motor drive. Camera QHY 5III 224 Color Cam, frame size 1304 x 984 px, Shoot at Gain=44,Expo= 0.8ms/frame, Gamma=112, frame rate=33-106 frames/sec, avi format, stackand process 14% best frames in 786 frames,­ with Software AstroStackert 3 ,wavelet with RegiStax V.6 ,   Atmospheric condition : Transparent : 8/10,Seeing : 7/10. Equipmentborrowed from Mr. Ng. Photo taken at Kennedy Town 堅尼地城, Hong Kong.