NGC7822 - WO71GT progress (John Favalessa)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: NGC 7762 · NGC 7822 · PGC 2796285 · PGC 2796291 · PGC 2796305 · Sh2-171

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NGC7822 - WO71GT progress

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NGC7822 - WO71GT progress

While still not perfect, the stars in the corners are getting better! This is essentially uncropped...yeah go ahead and pixel peep them, but check out the core also. I'm really going to love this setup as surprising detail for the focal length. WO has good glass for sure.

After 8 wasted nights of tweaking the backfocus, I might be at as good as it gets. I setup my old CGEM II, bought another ASIAIR, using the WO71GT with my OSC 2600MC Pro on it for testing. so I'm running two rigs...data overload! Guiding has been tremendous at less than 0.4 total RMS. I'm spoiled now by mono narrowband and definitely will come back to this nebula for true SHO. Since this image was shot using the OSC camera, I didn't spend a lot of effort with the processing. I know I can make this image better, but it was mainly for testing the star issues.

fascinating facts from Wikipedia: NGC 7822 is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800–1000 pc distant, with the younger components aged no more than a few million years. The complex also includes one of the hottest stars discovered within 1 kpc of the Sun, namely BD+66 1673, which is an eclipsing binary system consisting of an O5V that exhibits a surface temperature of nearly 45,000 K and a luminosity about 100,000 times that of the Sun. The star is one of the primary sources illuminating the nebula and shaping the complex's famed pillars of creation-type formations, the elephant trunks.

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Status	Advanced success
Started	...
Astrometry.net job	4993639
PixInsight job	FL0AEXWHO8K0TIQIOVW51JWBSPTMXCE0
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	00h04m15s.16
RA (top/left)	23h46m07s.25
RA (top/right)	23h56m24s.66
RA (bottom/right)	00h20m16s.96
RA (bottom/left)	00h13m34s.93

Dec (center)	+67°01′30″.7
Dec (top/left)	+68°29′03″.9
Dec (top/right)	+64°54′55″.1
Dec (bottom/right)	+65°26′56″.1
Dec (bottom/left)	+69°06′16″.5

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NGC7822 - WO71GT progress

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