ngc 7822 – nebula in cepheus

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I’m finally getting to process some data I captured back in August. At the time, I wasn’t sure I had enough to work with, but decided to give it a shot over the Christmas holiday. More data is always better, and that applies here, but I was able to pull out some good structure and color range in SHO here.

you can see the individual channel data here:

imaging session details below:

acquisition dateAugust 16-17, 2020
imaging cameraZWO ASI 1600MM Pro
guide cameraZWO ASI290mm Mini
mountSkywatcher EQ6-R pro
telescopeExplore Scientific ED102 APO
focal reducerStellarvue 0.8x Flattener & Reducer
exposure settingsgain 139
exposure 180s
cooling -15C
stacking40 lights – Optolong 7nm Ha
45 lights – Optolong 6.5nm Sii
45 lights – Optolong 6.5nm Oiii

additional calibration for each channel
30 darks
30 flats
30 dark flats
imaging session details.
SHO mapped RGB image

Overall, I’m pretty happy with how this turned out considering my doubts about the data when I originally previewed it a couple months ago.

Update – re-ran post-processing with some adjustments to curves and stars, and the crop

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