Image Description and Details :

3 images are combined (32% original size)image 1 : 3 panels mosaic (taken with e-180/ASI094MC)image 2 and 3 : high resolution images (taken with RC10/SX-H694)Date : 8Dec.2021 -16 Dec.2021Place : Gemini Remote Observatory, Lijiang, Yunnan, ChinaTelescope : Tak e-180 ,Mount : Skywatcher EQ8Camera : ZWO ASI094MC(-10ºC ) ,Filters : Baader Ha,LExposure : panel 1 (ic 405 /upper ) L: 180sx 44 , Ha:900sx 6panel 2 (ic 410/ middle) L: 180sx 42 , Ha:900sx4panel 3 (ic 417/ngc1931 lower) L: 180sx 50 , Ha:900sx6(total~ 10.8hr)Guiding : Borg 50 / asi174 ,Image Processing : PI ,PS-CC

Copyright: Alan Van