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你看那! 環坑遍佈鋪滿地, 證明它! 隕石衝擊天外來. 下邊最大最光的叫弟谷環形坑, 它的環壁已經崩塌成多層. 上邊最大的叫坑克拉維環形坑, 它不單只大( 231km), 更因為它有5個由大至小的環形坑在它的坑內呈弧形排列, 十分獨特. Tyco & Clavius, UT 2022 07 10, 13h39m, Telescope TEC Maksutov-CassegrainMC200/20, D=20cm, Effective Focal Length= 4 meter, Losmandy G-11 EquatorialMount with motor drive. Camera QHY 5III 224 Color Cam, Capture withFireCapture, Shoot at Gamma=100, Gain=12, Expo= 4.9 ms/frame, 30 f/s, aviformat, stack and process 10% best frames in 1804 frames by free Software AutoStakkert3, wavelet with RegiStax V.6, iL=2, L1=19. Final touch by Microsoft Photosoftware. Atmospheric condition: Transparent: 8/10, Seeing: 7/10. Equipmentborrowed from Mr. Ng. The photo was taken at Kennedy Town 堅尼地城,Hong Kong.
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發表於 2022-7-11 20:29:23