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Contains:  M 27, Dumbbell nebula, NGC 6853, The star 14Vul
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Dumbbell Nebula (M27) in HaRGB, 





    
        

            Frank Kane
Dumbbell Nebula (M27) in HaRGB

Dumbbell Nebula (M27) in HaRGB

Technical card

Resolution: 2391x1461

Dates:June 1, 2019

Frames: 144x120"

Integration: 4.8 hours

Avg. Moon age: 27.55 days

Avg. Moon phase: 4.36%

Astrometry.net job: 2754656

RA center: 19h 59' 28"

DEC center: +22° 51' 7"

Pixel scale: 1.113 arcsec/pixel

Orientation: 272.110 degrees

Field radius: 0.433

Locations: My Driveway, Winter Springs, FL, United States

Data source: Backyard

Description

Imaged from my red-zone driveway over 3 nights. This image uses Ha as a luminance channel, a blend of Ha and R as red, and wideband green and blue data. It's about 2 hours of Ha and about 4 hours of RGB exposure.

Only very modest boosts in saturation and contrast. I'm not sure I'm happy with the colors - I think the core is supposed to be more blue, but this is just what PixInsight's color calibration gave me. But I do like that the faint outer shell is starting to emerge.

Comments

Author

fkane
Frank Kane
License: None (All rights reserved)
740
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Revisions

  • Dumbbell Nebula (M27) in HaRGB, 





    
        

            Frank Kane
    Original
  • Dumbbell Nebula (M27) in HaRGB, 





    
        

            Frank Kane
    B
  • Dumbbell Nebula (M27) in HaRGB, 





    
        

            Frank Kane
    C
  • Dumbbell Nebula (M27) in HaRGB, 





    
        

            Frank Kane
    D
  • Final
    Dumbbell Nebula (M27) in HaRGB, 





    
        

            Frank Kane
    E

B

Adjusted the stretch for a darker background.

C

Messed with the color balance to look more like what I would expect.

D

Cleaned up the background and made it print-quality resolution.

E

Processed to bring out more detail inside the nebula.

Sky plot

Sky plot

Histogram

Dumbbell Nebula (M27) in HaRGB, 





    
        

            Frank Kane