點解月球有個咁大既墨硯?

C.L.Chan

點解月球有個咁大既墨硯?  因為自古以來,有無數詩人文人吟寫月亮囉.

柏拉圖大盆地, 101 km, Plato, A round big crater basin, UT 2022 03 14, 12h48m, TelescopeTEC Maksutov-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=21,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.