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

Sh2-124 HaRGB

Here is the H-Alpha channel:

Sh2 124 H-Alpha

Image Data:

Scope: Planewave 12.5" CDK
Camera: Apogee U16M (16803 cce) w Astrodon Gen II filters
Mount: Paramount ME
RGB: 12/12/12 x 10min
H-Alpha: 40 x 20 min
Lucknow, Ontario, Canada
August 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, masked Saturation boost to highlights. Save as TIFF
H-Alpha: Gradient Removal, BlurX, NoiseX, StarX, Curves, HT then LHE. Save as TIFF

Photoshop:
RGB split into channels, Ha added using Lighten layers to Red and Blue at 100% and 20% respectively.
Additinoal Colour Balance and Selective Colour adjustments. Some modest noise reduction.

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