– Date : 2017/10/27
– Site : South Korea Ganghwa
– Telescope : Sharpstar 107ph
– Sensor : ZWO ASI 1600mm-c (-15도)
– Guiding : ASI 120mm-s/Off-axis guide

–  Ha 12 x 600sec(2bin) / O3 7 x 600sec(2bin) / S2 7 x 600sec(2bin)

– Calibration : (dark 10, bias 15, flat X)
– S/W : Pixinght, Photoshop CS6