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Contains:  NGC 6530, M 21, NGC 6531, M 8, Lagoon nebula, Hourglass nebula, NGC 6523, NGC 6526, Trifid nebula, M 20, NGC 6514, The star 9Sgr, The star 7Sgr, The star 4Sgr
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M20 wider field, 





    
        

            Colin
M20 wider field

M20 wider field

Technical card

Resolution: 3690x2464

Dates:May 30, 2017

Frames: 19x300" ISO800

Integration: 1.6 hours

Darks: ~9

Flats: ~20

Bias: ~20

Avg. Moon age: 5.31 days

Avg. Moon phase: 28.63%

Bortle Dark-Sky Scale: 3.00

Mean FWHM: 2.50

Temperature: 2.00

Astrometry.net job: 1629131

RA center: 270.691 degrees

DEC center: -23.035 degrees

Pixel scale: 2.972 arcsec/pixel

Orientation: 88.606 degrees

Field radius: 1.832 degrees

Data source: Traveller

Comments

Author

AtmosFearIC
Colin
License: None (All rights reserved)
1953
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M20 wider field, 





    
        

            Colin