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Contains:  IC 1275, NGC 6559, IC 1274, IC 4685, NGC 6544, NGC 6546, NGC 6530, M 21, NGC 6531, M 8, Lagoon nebula, Hourglass nebula, NGC 6523, NGC 6526, Trifid nebula, M 20, NGC 6514, The star 11Sgr, The star 9Sgr, The star 7Sgr, The star 4Sgr
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Lagoon Nebula Region in Sagittarius, 





    
        

            Scott Tucker
Lagoon Nebula Region in Sagittarius

Lagoon Nebula Region in Sagittarius

Technical card

Resolution: 2000x1973

Dates:June 2, 2019

Frames:
Astrodon 5nm H-alpha 50mm: 7x1200" -15C bin 1x1
Optolong L-eNhance: 129x120" (gain: 120.00) -20C bin 1x1
Baader Luminance 50mm square: 14x300" -15C bin 1x1

Integration: 7.8 hours

Avg. Moon age: 28.56 days

Avg. Moon phase: 1.05%

Mean SQM: 21.80

Astrometry.net job: 2727313

RA center: 271.595 degrees

DEC center: -23.626 degrees

Pixel scale: 6.661 arcsec/pixel

Orientation: 359.022 degrees

Field radius: 2.599 degrees

Locations: Mt. Hopkins, Tucson, AZ, United States

Data source: Traveller

Description

Shot this image using two systems at once (to get 7.8 hours of data on a night with only 6.5 hours of astronomical darkness). Luminance and H-alpha with an Apogee U16M on a SkyWatcher Esprit 100 with field flattener, and color with a ZWO294MC on a Samyang 135mm lens stopped to f/2.8. SQM measured the darkest I've ever seen at this site, 21.80! Wind was dead calm for a change. Perfect night!

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Author

Tucker512
Scott Tucker
License: None (All rights reserved)
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Lagoon Nebula Region in Sagittarius, 





    
        

            Scott Tucker