SH2-99 & SH2-100 Region

There is a lot of action going on in this less imaged region of Cygnus. The star features are SH2-99, the bright area a bit right of the center, and SH2-100, the bright area at the center of the image. I could not find much information about the objects, only that Stellarium categorizes them as HII regions. SH2-100 is the brighter of the two and is about 30,000 light-years away with other designations such as NGC 6857 and PK 070+01.2. One of my favorites in this image is the translucent blue and gold wedge part in the top central portion. It is designated as SNR G070.5+01.9 and described as a supernova remnant candidate. There are two other supernova remnants found in this image. 1) The small dense bright orange spot to the left is designated as SNR G070.7+01.2 and 2) the blue stream on the right side is designated as SNR G070.0+02.0. Lastly, the blue-gold arching nebula on the top left is LBN 164, the gaseous region on the bottom center with golden vertical streamers is LBN 159, and the deep blue region on the right is known as LBN 158.

I had not intended to image this over a three week period but the moon and the weather made imaging quite difficult. I started with the narrowband data but then took the camera and unit off mount to do some other stuff. As a result I forgot to carefully align the camera at night. Fortunately it was the RGB data which I was only using for the stars.

As expected, hydrogen was by far the most abundant gas followed by sulfur and oxygen. I spent a lot of time trying to tweak the color but was never truly happy with it until I made adjustments in a totally different way and was able to get something satisfactory. 

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SH2-99 & SH2-100 Region

Dates: 7-19, 7-21, 7-23, 7-26, 8-2, 8-6
Camera: ZWO ASI1600MM-Pro
Telescope: Astro-Tech AT115EDT 115mm Refractor Telescope
Barlow: None
Focal Length: 805mm
f/7
Focal Reducer: 0.8x AstroTech Field Flatterner/Focal Reducer
Mount: Orion Sirius
Filter Wheel: ZWO EFW 8 x 1.25"
Filter: ZWO Ha, OIII, SII, R, G, B
Focuser: ZWO EAF
Autoguiding: ASI120 Mini attached to an Agena 50mm Guide Scope/ZWO 60mm Guidescope
Exposure: Ha 76 x 240, OIII 52 x 240, SII 60 x 240, R 28 x 60, G 26 x 60, B 27 x 60
Gain: 139
Offset 21
Sensor Temp: 0 C
Processing: NINA, PixInsight, Photoshop, Topaz DeNoiseAI.

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http://astroquest1.blogspot.com/
https://www.astrobin.com/users/kurtzepp/collections/
http://youtube.com/c/AstroQuest1