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Contains:  Omega nebula, M 17, NGC 6618
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Omega Nebula (Messier 17)

Technical card

Resolution: 4095x4096

Dates:July 17, 2017July 18, 2017July 19, 2017

Astrodon 5nm Halpha: 8x1200" -25C bin 1x1
Astrodon O-iii: 4x1200" -25C bin 1x1
Astrodon S-ii: 4x1200" -25C bin 1x1

Integration: 5.3 hours

Avg. Moon age: 23.97 days

Avg. Moon phase: 31.47% job: 1679140

RA center: 18h 20' 54"

DEC center: -16° 13' 58"

Pixel scale: 0.550 arcsec/pixel

Orientation: -113.846 degrees

Field radius: 0.443

Locations: Deep Sky West, Rowe, New Mexico, United States


Omega Nebula, also known as Messier 17, in Sagittarius is one of the brightest diffuse nebulae in the sky. A trial SHO composition with partial data, and had hard time composing the SHO image. Star sizes and huge difference in different channels were the main issues yet to find a good way to deal with.



Miles Zhou
License: None (All rights reserved)




Sky plot

Sky plot


Omega Nebula (Messier 17), 


            Miles Zhou

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Members of Deep Sky West