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Contains:  IC 1795, IC 1805, IC1795, IC1805, IC1824, NGC 1027, NGC 896, NGC1027, NGC896, Sh2-190
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IC1805 Heart Nebula HOO, 



    
        

            Kyle Desrosier
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IC1805 Heart Nebula HOO

Technical card


Dates:Nov. 10, 2019Nov. 24, 2019Dec. 2, 2019Dec. 3, 2019Dec. 6, 2019

Frames:
ZWO Ha 36mm 7nm: 47x480" (gain: 200.00) -15C bin 1x1
ZWO OIII 36mm 7nm: 55x600" (gain: 200.00) -15C bin 1x1

Integration: 15.4 hours

Darks: ~30

Flats: ~25

Bias: ~100

Avg. Moon age: 12.36 days

Avg. Moon phase: 49.58%

Bortle Dark-Sky Scale: 4.00


Astrometry.net job: 3196188

RA center: 2h 32' 52"

DEC center: +61° 16' 52"

Pixel scale: 1.011 arcsec/pixel

Orientation: 15.274 degrees

Field radius: 1.592 degrees


Resolution: 9000x6900

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

Data source: Backyard

Description

Processing Details:

Pre-processing (for each channel):
- Blink
- ImageCalibration
- CosmeticCorrection
- SubframeSelector
- StarAlignment
- ImageIntegration
- DrizzleIntegration
- DynamicCrop

Ha:
- Deconvolution: DynamicPSF, star mask for local support, masked w/ starless binary range mask
- MultiscaleLinearTransform: lightness NR, attenuated w/ inverted low contrast mask

OIII:
- BackgroundModelization
- MultiscaleLinearTransform: lightness NR, attenuated w/ inverted low contrast mask
- LinearFit: -> Ha

HOO:
- PixelMath:
R: Ha*0.85 + OIII*0.15
G: Ha*0.05 + OIII*0.95
B: OIII
- BackgroundNeutralization
- ColorCalibration
- BackgroundModelization
- HistogramTransformation
- TGVDenoise: luminance for local support, heavily attenuated w/ inverted low contrast mask
- HDRMultiscaleTransform: masked w/ starless binary range mask, 80% amount using PixelMath
- LocalHistogramEqualization: large structures, masked w/ starless binary range mask
- LocalHistogramEqualization: small structures, masked w/ starless binary range mask
- DarkStructureEnhance
- MultiscaleMedianTransform: lightness NR, heavily attenuated w/ inverted low contrast mask
- MultiscaleMedianTransform: chrominance NR, attenuated w/ inverted low contrast mask
- ColorSaturation: attenuated w/ inverted low contrast mask
- CurvesTransformation: attenuated w/ inverted low contrast mask
- MorphologicalTransformation: reduced star sizes, masked w/ star mask
- ExponentialTransformation: heavily attenuated w/ inverted low contrast mask
- CurvesTransformation: removed stubborn cyan gradients, masked w/ cyan color mask

Comments

Author

kdesrosier
Kyle Desrosier
License: None (All rights reserved)
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IC1805 Heart Nebula HOO, 



    
        

            Kyle Desrosier

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