Fireworks Galaxy, a spiral galaxy with a small bright nucleus, located between the boundaries of the the northern constellations of Cepheus and Cygnus. The frame shows the surrounding dust nebulosity and the globular cluster NGC6939
The image is the result of 14 hours of integration of L (470x60s) R/G/B (130x60s each)
Full resolution image here
Processing details
Pixinsight
- Calibration, weighting, alignment, integration (drizzle integration vark 1.5), crop, Integer downsample 2x
- Crop
- LinearFit R and B maters to G
LUM
- ABE
- EzDecon
- EzDenoise
- HT stretch
- EZStarReduction
- Enhance nebulosity with exclusion mask on galaxy
- LHE on galaxy
- Curves to boost contrast
RGB
- ChannelCombination
- Arcinh + HT stretch
- HSV repair
- LRGB combination with LUM
Photoshop
- Enhanced saturation and contrast
- various curves, contrast and color adjustments with masks
