Contains: IC 4605, NGC 6144, M 4, NGC 6121, The star 22Sco, The star Antares (αSco), The star Al Niyat (σSco)
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M-4 and friends in the Antares Nebula

Technical card

Resolution: 4830x3471

Dates: June 18, 2017

Frames: 40x300" ISO800

Integration: 3.3 hours

Darks: ~25

Flats: ~40

Bias: ~80

Avg. Moon age: 23.20 days

Avg. Moon phase: 38.91%

Bortle Dark-Sky Scale: 6.00

Temperature: 21.00

Astrometry.net job: 1618429

RA center: 246.381 degrees

DEC center: -26.007 degrees

Pixel scale: 2.285 arcsec/pixel

Orientation: 159.057 degrees

Field radius: 1.888 degrees

Locations: Home , Ferrara, Ferrara, Italy

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Author

Stefano Franzoni
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M-4 and friends in the Antares Nebula, Stefano Franzoni