Thor's Helmet in Canis Major, this is a true colour palette produced with narrow band filters
Orion Optics UK AG12 F3.8
Starlightxpress SXVF-H694, SX USB CFW, SX OAG unit + Atlas Focuser
HaOIIISIIRGB = 330 340 220 45 45 45min = 17hrs total exposure (bin 1X1)
Using Astronomik 6nm Narrowband filters and RGB Deep Sky filters
-20C chip temp, flats used but no dark frames were used.
Focal length 1120mm
Image scale 0.84"/pix
Guide Camera: Starlightxpress Lodestar
Comments
Taken over 4 nights - 16, 20, 21 and 29 Jan 2017, some moon, average seeing.