NGC 7789

• Photographer : Hyunwoo Kim

• DATE : 27 Sep 2022

• Place : Gimpo (Bortle 5)

• Telescope : SDT80 (FL 384mm/F4.8)

• Tripod & Mount : AZ EQ6 GT

• Guide scope/camera : ZWO mini guide scope / ASI 120mm mini

• Camera : 1600mm pro (-10 deg)

• Filter : Optolong LRGB

• Exposure : Total 1.38 hours

Optolong L filter : 60s x 48 (gain 76)

Optolong R filter : 60s x 12 (gain 76)

Optolong G filter : 60s x 14 (gain 76)

Optolong B filter : 60s x 9 (gain 76)

• Software : Pixinsight