The inner ring of NGC 7009 spans just 25 arc sec of sky and the overall dimensions are about
45" X 35" making it a challenging object to image. About a third of a light year across and some
3000 light years away, NGC 7009 is a tiny planetary nebula in Aquarius more affectionately know
as The Saturn Nebula, due to its similar size and resemblance to the planet Saturn.
You can read about NGC 7009 here: http://en.wikipedia.org/wiki/Saturn_Nebula
Orion Optics UK AG12 F3.8
Starlightxpress SXVF-H694, SX USB CFW, SX OAG unit + Atlas Focuser
SIIHaOIII = 38, 51, 45min (bin 1X1)
Using Astronomik 6nm Narrowband filters and RGB Deep Sky filters
-20C chip temp, no flats or dark frames were used.
Focal length 1120mm
Image scale 0.84"/pix
Guide Camera: Starlightxpress Lodestar
Taken in one night 31 Aug 2017, some moon, average to above average seeing.