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



    
        

            ofiuco
M 27 Dumbbell nebula (Once again)
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M 27 Dumbbell nebula (Once again)

Technical card


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


Basic astrometry details

Astrometry.net job: 3257137

RA center: 19h 59' 40"

DEC center: +22° 43' 15"

Pixel scale: 1.103 arcsec/pixel

Orientation: 89.154 degrees

Field radius: 0.658 degrees


Resolution: 3435x2576

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.

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ofiuco
ofiuco
License: None (All rights reserved)
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M 27 Dumbbell nebula (Once again), 



    
        

            ofiuco