Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  M 20, NGC 6514, Trifid nebula
Another Trifid - Messier 20, 


            John Michael Bell...
Another Trifid - Messier 20
Powered byPixInsight

Another Trifid - Messier 20

Technical card

Dates:May 13, 2019June 27, 2019

Optolong 2" L pro: 125x60" (gain: 150.00) -12C bin 1x1
Optolong 2" L pro: 30x150" (gain: 150.00) -20C bin 1x1

Integration: 3.3 hours

Darks: ~35

Bias: ~300

Avg. Moon age: 16.52 days

Avg. Moon phase: 48.30%

Bortle Dark-Sky Scale: 5.50

Temperature: 28.00

Basic astrometry details job: 2793453

RA center: 18h 2' 24"

DEC center: -22° 58' 44"

Pixel scale: 0.274 arcsec/pixel

Orientation: 89.266 degrees

Field radius: 0.284 degrees

Resolution: 5836x4632

Locations: Backyard, Tucson, Arizona, United States

Data source: Backyard


As the rainy season continues in southern Arizona, I've found some more unprocessed data to work with. My previous attempts at M20 consisted of at least 3 min subs, this is with the added signal of 125 60 second subs under a moonless night. Hope you enjoy and thanks for all the support and comments!



John Michael Bell...
License: Attribution Creative Commons

Sky plot

Sky plot


Another Trifid - Messier 20, 


            John Michael Bell...