NGC 6811

Posted by dcrowson
on Saturday, July 14, 2018

NGC 6811 (Melotte 222 and others) is a trumpler class III 1 r open cluster located approximately 3,600 light-years away in Cygnus. There are at least a couple (Kepler 66b and 67) exoplanets in the thousand or so stars that make up this cluster.

Luminance – 12x600s – 240 minutes – binned 1x1
RGB –8x300s – 40 minutes each – binned 2x2

240 minutes total exposure – 4 hours

Imaged from Dardenne Prairie, Missouri (a red zone) on July 9th, 2018 with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.

LRGB - https://www.flickr.com/photos/dcrowson/42692439744/sizes/l

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