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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
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The Lagoon and Trifid, 


The Lagoon and Trifid

The Lagoon and Trifid

Technical card

Resolution: 4182x2768

Dates:July 7, 2019

Frames:Astronomik CLS CCD Canon EOS Clip Filter - CLSCCD-EOS CLS EOS-Clip: 55x120" ISO800 2C bin 1x1

Integration: 1.8 hours

Darks: ~30

Flats: ~15

Bias: ~100

Avg. Moon age: 5.28 days

Avg. Moon phase: 28.32%

Bortle Dark-Sky Scale: 8.00

Temperature: 27.00 job: 2792129

RA center: 270.881 degrees

DEC center: -23.641 degrees

Pixel scale: 2.220 arcsec/pixel

Orientation: 92.818 degrees

Field radius: 1.546 degrees

Data source: Backyard


This image consists of around 2 hours of RGB data on M8 and M20, taken from my backyard in Austin, Texas. I've processed this image multiple times, but this one ended up as my favorite. I spent a lot of time dimming the hydrogen gas that is so common in this area of Sagittarius, but I may reprocess it in the future and allow more of it to stretch with the rest of the image.

Comments / critiques are encouraged and appreciated :)



License: None (All rights reserved)

Sky plot

Sky plot


The Lagoon and Trifid,