– Date : 2017/4/26
– Site : 홍천
– Telescope : GSO rc6″(x0.8)
– Sensor : ZWO ASI 1600mm-c (-20도)
– Guiding : QHY5 mono / 90mm(f900)
– Calibration : (dark 10, bias 15, flat X)

– S/W : Pixinght, Photoshop CS6
– Ha 11x600sec(2bin)/S2 6x600sec(2bin)/O3 5x600sec(2bin)
** 게인 139, 옵셋 21**