Sharpless 151 - Emission Nebula in Cassiopeia

Sh2-151 Planewave U16M

Sh2-151 : Emission Nebula in Cassiopeia

From GalaxyMap.Org:
Sh 2-151 : Five molecular clouds are part of the Sh 2-151 complex and have a total of 29 thousand solar masses. About 700 solar masses has been ionised by an unseen star that is likely obscured by dust in one of the molecular clouds.
Scope: Planewave 12.5" CDK
Camera: Apogee U16M w Astrodon GenII LRGB
Mount: Paramount ME (MKS 5000 upgrade)
H-Alpha 31 x 20 min
R/G/B 12/12/14 x 10 min each
Images acquired w TheSkyX Professional and CCD-Commander
Processing in PixInsight:
- WBPP script
- H-Alpha processed further with BlurX, StarX then HT, Curves and NoiseX on the Starless image
- RGB combine followed by SPCC, BlurX, HT and Curves, NoiseX
Processing in Photoshop:
- RGB split into individual channels
- H-Alpha then layered onto Red @ 100% and Blue @20% using Lighten blend mode
- Curves and Colour Balance
- cleanup

Click on the image to see a larger version.

Lucknow, Ontario, Canada
September 2023