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Contains:  M 43, NGC 1982, NGC 1980, M 42, Great Nebula in Orion, NGC 1976, The star ιOri, The star θ2Ori, The star θ1Ori
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M42 - The Great Orion Nebula - in NbLRGB, 





    
        

            Cfosterstars
M42 - The Great Orion Nebula - in NbLRGB

M42 - The Great Orion Nebula - in NbLRGB

Technical card

Resolution: 9025x6763

Dates:Nov. 16, 2018Dec. 2, 2018Dec. 4, 2018Dec. 17, 2018Dec. 20, 2018Dec. 27, 2018Jan. 1, 2019Jan. 4, 2019Jan. 5, 2019Jan. 10, 2019Jan. 12, 2019

Frames:
Astrodon 36mm Ha 5nm: 60x10" (gain: 200.00) -15C bin 1x1
Astrodon 36mm Ha 5nm: 60x300" (gain: 200.00) -15C bin 1x1
Astrodon 36mm Ha 5nm: 40x45" (gain: 200.00) -15C bin 1x1
Astrodon 36mm O3 5nm: 60x45" (gain: 200.00) -15C bin 1x1
Astrodon 36mm O3 5nm: 60x300" (gain: 76.00) -15C bin 1x1
Astrodon 36mm SII 5nm: 60x300" (gain: 200.00) -15C bin 1x1
Astrodon Blue Tru-Balance E-series gen 2: 60x10" (gain: 76.00) -15C bin 1x1
Astrodon Blue Tru-Balance E-series gen 2: 159x90" (gain: 76.00) -15C bin 1x1
Astrodon Green Tru-Balance E-series gen 2: 60x10" (gain: 76.00) -15C bin 1x1
Astrodon Green Tru-Balance E-series gen 2: 170x90" (gain: 76.00) -15C bin 1x1
Astrodon Luminance Tru-Balance E-series gen 2: 60x10" (gain: 76.00) -15C bin 1x1
Astrodon Luminance Tru-Balance E-series gen 2: 60x30" (gain: 76.00) -15C bin 1x1
Astrodon Luminance Tru-Balance E-series gen 2: 120x300" (gain: 76.00) -15C bin 1x1
Astrodon Red Tru-Balance E-series gen 2: 60x10" (gain: 76.00) -15C bin 1x1
Astrodon Red Tru-Balance E-series gen 2: 168x90" (gain: 76.00) -15C bin 1x1

Integration: 40.0 hours

Darks: ~40

Flats: ~40

Flat darks: ~40

Avg. Moon age: 17.59 days

Avg. Moon phase: 35.96%

Bortle Dark-Sky Scale: 5.00

Astrometry.net job: 2475277

RA center: 5h 35' 7"

DEC center: -5° 33' 39"

Pixel scale: 0.595 arcsec/pixel

Orientation: 2.428 degrees

Field radius: 0.931

Locations: Backyard, Austin, TX, United States

Data source: Backyard

Description

This is half of my winter project of the Orion Nebula and Running Man nebula. This is the first panel and is processed with LRGB and Ha, OIII and SII data. I had several problems in processing. First was the star color when stretched for the RGB data. The ArcsinhStretch seems to always generate color artifacts with the stars. I also had a lot of issues blending the NB data into the RGB. I was not successful with the NBRGBCombination script so I used a blend of the RGB and a false color image from the NB filters using the blend script. I still need to figure out how to fix the star color. The fringe halos are not a consistent color. The microlensing artifacts around the bright stars is inherent with the ASI1600MM-Pro sensor.

Comments

Author

cfosterstars
Cfosterstars
License: None (All rights reserved)
3220
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M42 - The Great Orion Nebula - in NbLRGB, 





    
        

            Cfosterstars