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Contains:  Hourglass nebula, IC 1274, IC 1275, IC 4685, Lagoon nebula, M 20, M 21, M 8, NGC 6514, NGC 6523, NGC 6526, NGC 6530, NGC 6531, NGC 6544, NGC 6546, NGC 6559, The star 11Sgr, The star 4Sgr, The star 7Sgr, The star 9Sgr, Trifid nebula
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Nébuleuses Trifides et Lagune M8 - M20, 


            Frédéric Girard
Nébuleuses Trifides et Lagune M8 - M20
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Nébuleuses Trifides et Lagune M8 - M20

Technical card

Imaging telescopes or lenses:FSQ-106ED

Imaging cameras:Moravian G4 16000

Mounts:Avalon Linear

Guiding cameras:ASI ZWO ASI174MC

Software:PixInsightTheSkyX Pro

Filters:Chroma Ha 3nmAstrodon Filtre

Dates:Sept. 20, 2018

Frames:Chroma Ha 3nm: 13x900" -20C bin 1x1

Integration: 3.2 hours

Darks: ~70

Bias: ~150

Avg. Moon age: 10.53 days

Avg. Moon phase: 81.07%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details job: 2370492

RA center: 18h 4' 59"

DEC center: -23° 28' 4"

Pixel scale: 3.490 arcsec/pixel

Orientation: 10.700 degrees

Field radius: 2.347 degrees

Resolution: 3376x3471

Data source: Backyard


Mix HaRVB Pixinsight :

HA : 13 x 900s -20C bin 1 x1
R : 12 x 300s x 13 -20C bin 1 x1
V : 12 x 300s x 13 -20C bin 1 x1
B : 8 x 300s x 13 -20C bin 1 x1



Frédéric Girard
License: Attribution-NonCommercial Creative Commons

Sky plot

Sky plot


Nébuleuses Trifides et Lagune M8 - M20, 


            Frédéric Girard