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Contains:  Omega nebula, M 17, NGC 6618
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M17 Omega Nebula, 





    
        

            Stan Smith
M17 Omega Nebula

M17 Omega Nebula

Technical card

Resolution: 1023x814

Dates:Sept. 21, 2019

Frames:
Optolong Ha 7nm 1,25": 15x120" bin 1x1
Optolong OIII 6.5nm 1.25": 15x180" bin 1x1
Optolong S-II 6.5nm: 15x180" bin 1x1

Integration: 2.0 hours

Avg. Moon age: 21.54 days

Avg. Moon phase: 56.49%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 2936924

RA center: 18h 20' 35"

DEC center: -16° 11' 6"

Pixel scale: 4.198 arcsec/pixel

Orientation: 273.686 degrees

Field radius: 0.762

Locations: Mountain Rest Astronomical Observatory, Mountain Rest, SC, United States

Data source: Backyard

Description

The Omega Nebula, also known as the Swan Nebula, Checkmark Nebula, and the Horseshoe Nebula is an H II region in the constellation Sagittarius. It was discovered by Philippe Loys de Chéseaux in 1745. Charles Messier catalogued it in 1764. It is located in the rich starfields of the Sagittarius area of the Milky Way. -Wikipedia

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Author

stan29693
Stan Smith
License: None (All rights reserved)
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M17 Omega Nebula, 





    
        

            Stan Smith

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