Comet C/2017 T2 and Double Cluster

Date: 2020 January
Exposure Time: Total 8.5 hours(LRGB 4*12*5min)
Telescope: Sky Rover 102 APO Pro with Field Flattener at 714mm
Mount: iOptron CEM 60
Camera: ZWO ASI1600MM pro
​​​Software: PixInsight 1.86 and Photoshop CC
Location: Gaoyazi Remote Control Observatory,
Xinjiang Uygur Autonomous Region, China