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Contains:  NGC 6781
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NGC 6781 Little Ring Nebula H-Alpha O-III RGB, 



    
        

            jerryyyyy
NGC 6781 Little Ring Nebula H-Alpha O-III RGB
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NGC 6781 Little Ring Nebula H-Alpha O-III RGB

Technical card


Dates:Oct. 24, 2019

Frames:
Astrodon 3nm OIII 31mm: 6x1800" bin 1x1
Astrodon Blue Tru-Balance E-Series Gen 2: 12x240" bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 12x240" bin 1x1
Astrodon H-alpha 5nm: 16x1800" bin 1x1
Astrodon Red Tru-Balance E-Series Generation 2: 12x240" bin 1x1

Integration: 13.4 hours

Avg. Moon age: 25.37 days

Avg. Moon phase: 18.33%


Basic astrometry details

Astrometry.net job: 3006784

RA center: 19h 18' 28"

DEC center: +6° 32' 27"

Pixel scale: 0.610 arcsec/pixel

Orientation: 359.693 degrees

Field radius: 0.158 degrees


Resolution: 1356x1288

Locations: Stanford Faculty Observatory, Stanford, California, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Green and Blue remapped via Rob's teal formula from the O-III.

The H-alpha, in first image, then mixed into the Red channel.

Image is drizzled.

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Author

jerryyyyy
jerryyyyy
License: None (All rights reserved)
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NGC 6781 Little Ring Nebula H-Alpha O-III RGB, 



    
        

            jerryyyyy