– Date : 2021/1/9

– Site : South Korea Ganghwa

– Telescope : SP 300mm F2.8

– Mount : Greego-HD17

– Sensor : ZWO ASI 1600mm-c (-15)

– Guiding : ASI 120mm

– Ha 30 x 120sec / R 39 x 120sec G 30 x 120sec

– Calibration : (dark 10, bias 15, flat X)

– S/W : Pixinght