Sh2-137 HaRGB
Sharpless 137
Here is the H-Alpha channel only:
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Couldn't
find much about this object - sorry! It is quite large, the FOV here
being 2x2 degrees and I couldn't fit it in.
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Camera: Moravian Instruments G4 (16803 chip) w Astrodon Gen II HaRGB
filters
Scope: AP155 EDF w Focus Boss II
Mount: Paramount MX
34 x 20 min H-Alpha; 11/13/14 x 10 min each RGB
Acquired with TheSkyX and CCD-Commander
Calibration and RGB combine in PixInsight
RGB: SPCC, BlurX, NoiseX, GradientRemoval, Curves, HT, masked Saturation boost to highlights
H-Alpha: BlurX, NoiseX, GradientRemoval, StarX, Curves, HT, Stars back in
Subsequent processing in Photoshop
Lucknow, Ontario
Apr-May 2025
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