NGC 7000 - North America Nebula (robo9981)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: NGC 6989 · NGC 6997 · NGC 7000 · North America Nebula

NGC 7000 - North America Nebula

Decided to get some frames in on NGC 7000 after M81/M82 sank below 30 degrees. Turned out way better than I expected. Processing isn't the cleanest - I'm not 100% happy with the colors in the dark regions of the Gulf, but it was a fun project.

Processing Details

Integrated in PixInsight w/ Drizzle 1x (0.8 drop shrink / kernel = vark 1.5)

RGB

1. DynamicCrop

2. DBE

3. HistogramTransformation to zero back and white points

4. BackgroundNeutralization

5. PhotometricColorCalibration

6. SCNR (Green / 0.5)

7. RepairHSVSeparation script to fix star cores

8. TGVDenoise with a low contrast mask (Jon Rista method)

9. MMT for noise reduction with a high contrast mask (Chrominance + CIE Y - Jon Rista method)

10. ArcsinhStretch (stretch = 10, black point = 0)

11. HistogramTransformation to bring in black point and further stretching

12. Extracted Synthetic Lum layer for structure enhancement.

Synthetic Lum Processing

1. StarNet++ to create starless version of L channel

2. PixelMath to create star mask (OriginalL - Starless)

3. LocalHistogramEqualization (Radius = 128 / Contrast Limit = 4 / Amount = 0.1)

4. LocalHistogramEqualization (Radius = 256 / Contrast Limit = 8 / Amount = 0.03)

5. MLT for NR and sharpening

6. PixelMath to re-add stars (Starless + StarsOnly)

RGB Continued

1. ChannelCombination to replace L channel of RGB with processed L.

2. Lots of curves for contrast, saturation, and color tweaks

3. ACDNR for final chroma noise reduction

4. MorphologicalTransformation for slight star reduction.

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

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Status	Basic success
Started	...
Astrometry.net job	4049743
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 7000 - North America Nebula

NGC 7000 - North America Nebula

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NGC 7000 - North America Nebula

NGC 7000 - North America Nebula

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