M22 + NGC 6642
M22 (NGC 6656 and others) is a Shapley-Sawyer class VII (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 10,600 light-years away in Sagittarius.
NGC 6642 (ESO 552-32 and others) is a small globular at the top right. It appears to be located approximately 26,400 light-years away.
Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
240 minutes total exposure – 4 hours
Imaged on September 28th and 29th, 2019 Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.