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OBJECT

M20 - Trifid Nebula       (image above is reduced-size crop | other sizes:  medium , large)

Distance:  4,100 light years

Telescope Takahashi TOA-130F @ f/7.7
Mount Astro-Physics AP1100GTO (on ATS pier)
Camera QSI 690wsg @ -10C
Filters Astrodon H-alpha (3nm bandwidth), Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 16x5min L, 4x5min Ha (bin1x1); 4x5min ea RGB (bin2x2); AstroArt5, PI, CS4 (uncropped, 10xdarks/flats/fdarks/bias)
Date/Location

Notes
24 May 2023 - Las Cruces, NM

This image is LHaRGB. 

Copyright  Jeffrey O. Johnson

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