Globular cluster M92

Posted by dcrowson
on Thursday, May 25, 2017

M92 (NGC 6341 and others) at the top right is a Shapley-Sawyer class IV (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 26,700 light-years away in Hercules.

Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 12x300s – 60 minutes each – binned 2x2

420 minutes total exposure – 7 hours

Imaged over seven nights in March and May, 2017 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

LRGB - https://www.flickr.com/photos/dcrowson/34500017270/sizes/l

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