Sh2-124
- Nebula in
Hydrogen Alpha + RGB
Click on either image to see it
at 50% of the original resolution

Here is the H-Alpha channel:

And here is the original pure RGB:

Image
Data:
Scope: AP155EDF
Camera: Moravian G4 (16803 ccd) w Astrodon Gen II filters
Mount: Paramount MX
H-Alpha: 24 x 20 min; RGB 12x10min each
Lucknow, Ontario, Canada
July 2025
Images acquired using TSX and CCD-Commander
Processed in PixInsight and Photoshop as follows:
PixInsight:
RGB:
Gradient Removal, SPCC, BlurX, NoiseX, StarX, Curves, HT, LHE, Stars
stretched separately using Curves then added back via PixelMath. Save
as TIFF
H-Alpha: Gradient Removal, BlurX, NoiseX, StarX, Curves, HT then HDRMMT. Save as TIFF
HaRGB_Combine process was used to add the Ha to the RGB. Save as TIFF
Photoshop:
H-Alpha: A High Pass filter layer was added for boosting the contrast in the core
All three of RGB, HaRGB and Ha were then Saved-for-Web
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