NGC 6992 - Eastern Veil Nebula (HOO)

Located 1470 LY from us in the constellation Cygnus the Veil Nebula is a cloud of heated and ionized gas and dust.  NGC 6992 or the Eastern Veil Nebula forms a portion of the Cygnus Loop, a supernova remnant. A star 20 times more massive than the Sun exploded around 8,000 years ago to form this complex (source: Wikipedia). This is another favorite image during the summer months for astrophotographers. 

I very happy with how this image turned out as it blows my previous image captured two years ago out of the water.  The framing could have been a bit better but everything else went smoothly.  I captured 1.5 hrs of Ha on 9/16 and 1.5 hrs of OIII on 6/18 while the moon was out. My only regret was I did not get any RGB data for the star field, however, HOO star field came out better than I anticipated.  

This image was fun to process as everything I did in PI looked OK when I tried it.  In contrast, I had to do heavy processing on my image from a couple years ago and nothing seemed to look good.  I ended up combining it with the simple RGB Combination, however, I did experiment with using PixelMath and doing Ha and OIII combinations in the green and blue channels.    I did an Automatic Background Extraction, noise reduction - SNCR, Histogram Transformation, Curves and then switched to Photoshop for a couple of things and that was it.

NGC 9662 - Eastern Veil Nebula - HaOO
Location: Home Monroe, CT
Date: 9-16-18, 9-18-18
Camera: ZWO ASI1600MM-Pro
Telescope: Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope
Barlow: None
Focal Length: 600mm
f/7.5
Focal Reducer: Orion 0.8x Focal Reducer for Refractor Telescopes
Mount: Orion Sirius EQ
Filter Wheel: ZWO EFW 8x 1.25"
Filter: ZWO Ha, OIII
Autoguiding: QHY-5L-II-M attached to an Agena 50mm Guide Scope with Helical Focuser
Exposure: Ha 30 x 180s, OIII 30 x 180s
Gain: 139
Offset 21
Temp: -10 C
Post Processing: PixInsight and Photoshop
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