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Elephant's trunk - help requested!, 



    
        

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Elephant's trunk - help requested!

Elephant's trunk - help requested!, 



    
        

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Powered byPixInsight

Elephant's trunk - help requested!

Technical card

Imaging telescopes or lenses: Skywatcher Esprit 80 ED APO Triplet

Imaging cameras: ZWO ASI 1600MM-Pro (Mono)

Mounts: Skywatcher EQ6 PRO

Software: Nebulosity  ·  PixInsight

Filters: Astrodon 3nm OIII Narrowband Filter - 1.25"  ·  Astrodon 3nm H-Alpha Narrowband Filter - 1.25"


Frames:
Astrodon 3nm H-Alpha Narrowband Filter - 1.25": 360x60" (6h) (gain: 139.00) -25C
Astrodon 3nm OIII Narrowband Filter - 1.25": 360x60" (6h) (gain: 139.00) -25C

Integration: 12h


Astrometry.net job: 2250876

RA center: 21h 39' 0"

DEC center: +57° 29' 28"

Pixel scale: 4.859 arcsec/pixel

Orientation: -81.257 degrees

Field radius: 1.544 degrees


Resolution: 1824x1379

Data source: Backyard

Description

I took 6 hours each HII and OIII but when I try to combine them the result is very disappointing. Nothing I do seems to help (linearfit, background neutralization etc). I think part of the problem is that the oxygen channel is very weak and noisy. I cannot get any realistic blue or green to come through and the image just ends up looking noisier than the original HII.

If you have any advice on how to combine these channels please let me know!

The data is stacked and calibrated but otherwise unprocessed (other than application of the screen transfer function to the histogram for visualization).

Comments

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Description: OIII

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Elephant's trunk - help requested!, 



    
        

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