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




    

        Don Holmgren
Narrowband M17

Narrowband M17

Technical card

Resolution: 4500x3406

Dates: Sept. 20, 2018

Frames:
ZWO H-alpha 7nm: 12x300" (gain: 139.00) -10C bin 1x1
ZWO O-III 7nm 1.25": 12x300" (gain: 139.00) -10C bin 1x1
ZWO SII 1.25": 12x300" (gain: 139.00) -10C bin 1x1

Integration: 3.0 hours

Avg. Moon age: 10.53 days

Avg. Moon phase: 81.07%

Bortle Dark-Sky Scale: 3.00

Astrometry.net job: 2303599

RA center: 275.192 degrees

DEC center: -16.197 degrees

Pixel scale: 0.617 arcsec/pixel

Orientation: 258.798 degrees

Field radius: 0.484 degrees

Locations: Mount Massive Lakes Observatory, Leadville, Colorado, United States

Data source: Backyard

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zdjh22
Don Holmgren
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Narrowband M17, 




    

        Don Holmgren