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Contains:  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 9Sgr, The star 7Sgr, The star 4Sgr
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M8-M20-M21 2016+2017, 


            Stefano Franzoni
M8-M20-M21 2016+2017

M8-M20-M21 2016+2017

Technical card

Resolution: 4725x3015

Dates:Aug. 24, 2016July 27, 2017July 29, 2017

20x120" ISO800
40x300" ISO800
35x360" ISO800

Integration: 7.5 hours

Darks: ~25

Flats: ~40

Bias: ~80

Avg. Moon age: 10.72 days

Avg. Moon phase: 38.91%

Bortle Dark-Sky Scale: 6.00

Temperature: 23.00 job: 1672604

RA center: 18h 3' 40"

DEC center: -23° 41' 45"

Pixel scale: 2.284 arcsec/pixel

Orientation: -91.459 degrees

Field radius: 1.778

Locations: Home , Ferrara, Ferrara, Italy


This is the sum of shots taken between 2016 and 2017 in three deiiferent days. not everything went well, but for the time being i'm good with the result, waiting for an astrocamera




Stefano Franzoni
License: None (All rights reserved)

Sky plot

Sky plot


M8-M20-M21 2016+2017, 


            Stefano Franzoni

In these public groups

Imagers of Italy