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Contains:  Hourglass nebula, Lagoon nebula, M 20, M 8, NGC 6514, NGC 6523, NGC 6526, NGC 6530, NGC 6544, NGC 6546, The star 7Sgr, The star 9Sgr, Trifid nebula
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M8 & M20 - The Lagoon and Trifid Nebulae (L-RGB), 



    
        

            Olivier Ravayrol
M8 & M20 - The Lagoon and Trifid Nebulae (L-RGB)
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M8 & M20 - The Lagoon and Trifid Nebulae (L-RGB)

Technical card


Dates:Aug. 19, 2015

Frames:Astronomik CCD CLS Canon EOS Clip: 11x240" ISO800 22C bin 1x1

Integration: 0.7 hours

Darks: ~3

Flats: ~7

Bias: ~100

Avg. Moon age: 4.38 days

Avg. Moon phase: 20.22%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 3255897

RA center: 18h 4' 35"

DEC center: -23° 56' 56"

Pixel scale: 2.257 arcsec/pixel

Orientation: 268.944 degrees

Field radius: 1.615 degrees


Resolution: 4290x2856

Locations: Observatoire personnel, Tournefeuille, Haute-Garonne, France

Data source: Own remote observatory

Description

L-RGB (synthetic luminance with true colors)
44 mn total exposure time at 800 iso (Tournefeuille, France)
600/80 mm Refractor – 450D EOS filter removed - CLS filter
Preprocessing with IRIS (Christian Buil software)
Image processing with Photoshop

Comments

Author

olivierr31
Olivier Ravayrol
License: None (All rights reserved)
860
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M8 & M20 - The Lagoon and Trifid Nebulae (L-RGB), 



    
        

            Olivier Ravayrol