It was while imaging of Asteroid 65803 Didymos. The object was low toward south. There encroached clouds frequently.
Here is a frame of the asteroid taken with the rig at the night.
and here is a frame of Sadr and Surroungings at the night.
I felt AstroPhysics 130GTX Granturismo small and light-weighted.
Last month I was struggling with Orion Optics AG12, a newtonian reflector with 12" mirror.
site: 1,996m above sea level at lat. 35 21 53 North, long. 138 46 35 East in the public parking on the eastern slope of Mt. Fuji in Shizuoka 富士山須走五合目. SQM-L was 20.76 even after moonset, and ambient temperature was around 6 degrees Celsius or 43 degrees Fahrenheit. Wind was gentle.