FACEBOOK Vincent Cheng 有拍 Dust Angel Nebula
https://www.facebook.com/photo.php?fbid=10153528893889249&set=gm.1069936549729841&type=3&theater天使星雲
(Angel Nebula, Mandel-Wilson Catalog of Unknown Nebula No.02)
2016年3月8-11日‧雲南宣威
拍攝資料
Camera : CentralDS A7s (cooled at-9C)
Telescope/Lens : SIGHTRON D=70mm f/5 Lanthan Apochromat Flat Field Astrograph (350mm f/5)
Filter : none
ISO : 3200
Tracking Mount : iOptron ZEQ25
Autoguide : SBIG ST-i, D=50mm f/4 guide scope, PHD
Total Exposure Time : 5mins x 116frmaes
w Dark Frames, Bias Frames
process w PI, PS CS5
感謝Vincent Cheng 分享