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Contains:  Trifid nebula, M 20, NGC 6514
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M20 from Lijiang, China

Technical card

Imaging telescope or lens:GSO RC8

Imaging camera:Atik One 6.0

Mount:SkyWatcher EQ8 Pro

Guiding camera:Atik GP mono (OAG)

Focal reducer:Astro-Physics CCDT67

Filter:Astrodon LRGB 1.25" E series Gen 2

Resolution: 2684x2147

Dates:May 30, 2019

Frames: 66x300"

Integration: 5.5 hours

Avg. Moon age: 25.61 days

Avg. Moon phase: 16.39% job: 2733577

RA center: 270.613 degrees

DEC center: -22.991 degrees

Pixel scale: 0.860 arcsec/pixel

Orientation: 267.042 degrees

Field radius: 0.411 degrees

Locations: Lijiang Gemini Observatory, Lijiang, Yunnan, China

Data source: Own remote observatory

Remote source: Lijiang Gemini Observatory


This summer Lijiang has more clear skys, so I get a chance to shoot this summer object -- M20. This object is quite bright, so 6 hours are good enough to make a colorful image.

L: 1min x 25, 5min x 30
R: 5min x 12
G: 5min x 12
B: 5min x 12



Ray Liao
License: None (All rights reserved)

Sky plot

Sky plot


M20 from Lijiang, China, 


            Ray Liao