narrow band M27 Dumbbell nebula
Object : M27
Date : Sept.-Dec. 2018
Place : Gemini Remote Observatory, Lijiang, Yunnan, China
Telescope : GSO RC10 /AP CCDT67
Mount : SkyWatcher EQ8
Camera : SX-H694(-10ºC)
Filter : Astrodon Ha ,Oiii , Sii
Exposure : Ha : :1200sx11, Oiii :1200sx11, Sii :1200sx7 (~9.7hr )
Guiding: OAG ASI174,
Processing: PI、PS-CC
detail image
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