NGC2244(Rosette nebula) 

– Date : 2018/12/8
– Site : South Korea Ganghwa
– Telescope : Sharpstar 107PH(0.8 Reducer)
– Mount : Greego-HD17
– Sensor : ZWO ASI 1600mm-c (-15)
– Guiding : ASI 120mm-s/Off-axis guide
– Ha 600sec(1bin , 2Bin ) / O3 600sec(1bin 5, 2Bin 5)/ S2 600sec(1bin 5, 2Bin 4)
– Calibration : (dark 10, bias 15, flat X)
– S/W : Pixinght