NGC 7822 is an emission nebula located in Cepheus, about 3,000 light years away. It is a violent, chaotic deep-sky region where young stars are being born, their powerful radiation ionizing the surrounding gas and causing it to glow. These energetic stellar winds are also carving out the dusty streams and pillars seen throughout the nebula.
The field of view on this version of NGC 7822 is an area rarely imaged, where the combining contrast of Hydrogen Alpha, Oxygen III and Sulphur II are on full display.
This image was taken over the span of several evenings, totaling 21 hours of data acquisition.
OTA: William Optics FLT 132 Fluorostar Refractor with William Optics 68III Field Flattener
Mount: ZWO AM5
Camera: ZWO ASI2600MM Pro
Gain: 100
Cooling Temperature: -10 degrees celsius
Filters:
Chroma Sii 600s x 36 = 6 hrs
Chroma Ha 600s x 40 = 6.7 hrs
Chroma Oiii 600s x 51 = 8.5 hrs
Auto-guiding: ZWO ASI174MM Mini and ZWO OAG-L
Auto-focusing: ZWO EAF
Control: ZWO ASIAIR Pro
Calibrated in Astro Pixel Processor with flats, darks and dark flats.
Processed in Pixinsight and Lightroom.
Imaged from Flagstaff, Arizona in Bortle 2 skies.
https://NAZObservatory.com 
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