Processed in PixInsight as follows:
RGB:
GradientCorrection, SPCC, BlurX, NoiseX, StarX then Starless image
stretched with HistogramTransformation, DarkStructureEnhance script.
Stars ONLY
image stretched with curves then a masked boost to Saturation of the highlights. Stars added back via Pixel Math. Save-as-TIFF
H-Alpha
image: GradientCorrection, BlurX, NoiseX, StarX then Starless image
stretched with HistogramTransformation then DarkStructureEnhance,
further noise
reduction. Save as TIFF.
In Photoshop, the
starless H-Alpha was copied and pasted over the RGB twice. One layer
was set to only hit the Red channel at 100%. The second layer was set
to
hit only the Blue channel at 20%. Both set to Lighten blend mode.
Flattened then some tiny adjustments to background. Save-for-Web.
Lucknow, Ontario
Sept 2025