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Contains:  M 27, Dumbbell nebula, NGC 6853, The star 14Vul
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M 27 Dumbbell nebula (Once again), 





    
        

            ofiuco
M 27 Dumbbell nebula (Once again)

M 27 Dumbbell nebula (Once again)

Technical card

Resolution: 3420x2566

Dates:Sept. 28, 2019

Frames: 8x600" ISO800

Integration: 1.3 hours

Darks: ~5

Flats: ~43

Bias: ~51

Avg. Moon age: 29.22 days

Avg. Moon phase: 0.11%

Bortle Dark-Sky Scale: 2.00

Temperature: 14.00

Astrometry.net job: 3039491

RA center: 19h 59' 40"

DEC center: +22° 43' 22"

Pixel scale: 1.103 arcsec/pixel

Orientation: 89.155 degrees

Field radius: 0.655

Data source: Traveller

Description

I made this image in an unorthodox way, using the two filters (UHC-e Astronomik and L-pro Optolong) simultaneously, one inside the camera and the other screwed to the coma reducer. I would like to know if there are others who have already tried this technique and if it can be considered correct. Thanks.

Comments

Author

ofiuco
ofiuco
License: None (All rights reserved)
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Revisions

  • M 27 Dumbbell nebula (Once again), 





    
        

            ofiuco
    Original
  • Final
    M 27 Dumbbell nebula (Once again), 





    
        

            ofiuco
    B

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M 27 Dumbbell nebula (Once again), 





    
        

            ofiuco