直壁因山泥崩瀉

C.L.Chan

直壁因山泥崩瀉, 高倍相中可見有三個上山缺口

直壁是一道長120 km, 高300到400 m ,是個傾斜約15度的大斜坡 .

Stright Wall, UT 2022 03 14, 13h13m, Telescope TECMaksutov-Cassegrain MC200/20, D=20cm, Tele Vue 2,5x Barlow lens, EffectiveFocal Length=10 meter, Losmandy G-11 Equatorial Mount with motor drive. CameraQHY 5III 224 Color Cam, Capture with FireCapture, Shoot at Gamma=100, Gain=28,Expo= 4.9 ms/frame, 30 f/s, avi format, stack and process 30% best frames in1778 frames by free Software AutoStakkert 3, wavelet with RegiStax V.6, iL=2,L1=43, L2=4. Final touch by Microsoft Photo software. Atmospheric condition:Transparent: 8/10, Seeing: 8/10. Equipment borrowed from Mr. Ng. The photo wastaken at Kennedy Town 堅尼地城, Hong Kong.