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Contains:  NGC 6995, Veil nebula, Network nebula, NGC 6992, IC 1340
Getting plate-solving status, please wait...
NGC6979/NGC6992 Pickering's Triangle and Eastern Veil Nebula HOO, 





    
        

            Kyle Desrosier
NGC6979/NGC6992 Pickering's Triangle and Eastern Veil Nebula HOO

NGC6979/NGC6992 Pickering's Triangle and Eastern Veil Nebula HOO

Technical card

Resolution: 9221x6956

Dates:July 16, 2019Sept. 25, 2019Sept. 26, 2019

Frames:
ZWO Ha 36mm 7nm: 36x600" (gain: 200.00) -15C bin 1x1
ZWO OIII 36mm 7nm: 18x300" (gain: 200.00) -15C bin 1x1
ZWO OIII 36mm 7nm: 26x600" (gain: 200.00) -15C bin 1x1

Integration: 11.8 hours

Darks: ~30

Flats: ~25

Bias: ~50

Avg. Moon age: 22.35 days

Avg. Moon phase: 40.93%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 3045397

RA center: 20h 52' 15"

DEC center: +31° 39' 57"

Pixel scale: 1.009 arcsec/pixel

Orientation: 164.938 degrees

Field radius: 1.619

Locations: Space Coast Home, Palm Bay, FL, United States

Data source: Backyard

Description

Previously captured as standalone Ha. Finally managed to capture the OIII portion to produce a bicolor HOO image in September.

Ha post: https://www.astrobin.com/418128/B/

Processing Details:

Pre-processing (for each channel):

- Blink
- ImageCalibration
- CosmeticCorrection
- SubframeSelector
- StarAlignment
- ImageIntegration
- DrizzleIntegration
- DynamicCrop
- BackgroundModelization
- Deconvolution: DynamicPSF, star mask for local support, masked w/ starless binary range mask
- MultiscaleLinearTransform: masked w/ inverted low contrast mask

HOO:

- LinearFit: OIII -> Ha
- PixelMath:
R: Ha*0.9 + OIII*0.1
G: Ha*0.05 + OIII*0.95
B: OIII
- BackgroundNeutralization
- ColorCalibration
- BackgroundModelization
- HistogramTransformation
- TGVDenoise: luminance for local support, masked w/ inverted low contrast mask
- HDRMultiscaleTransform:
- LocalHistogramEqualization: protected background w/ nebula mask
- MultiscaleLinearTransform: sharpening, protected background w/ nebula mask
- MultiscaleMedianTransform: lightness, heavily attenuated w/ inverted low contrast mask
- MultiscaleMedianTransform: chrominance, heavily attenuated w/ inverted low contrast mask
- ColorSaturation: attenuated w/ inverted low contrast mask (x2)
- CurvesTransformation: attenuated w/ inverted low contrast mask
- MultiscaleMedianTransform: chrominance, heavily attenuated w/ inverted low contrast mask (x2)
- MorphologicalTransformation: reduced star sizes, masked w/ star mask
- ExponentialTransform: protected background w/ nebula mask

Comments

Author

kdesrosier
Kyle Desrosier
License: None (All rights reserved)
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NGC6979/NGC6992 Pickering's Triangle and Eastern Veil Nebula HOO, 





    
        

            Kyle Desrosier

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