NGC 6738 is classified as an open cluster but might be just an asterism (stars forming a pattern than might not be related in any way other than the way we view them) located approximately 2,300 light-years away in Aquila.
Luminance – 24x300s – binned 1x1 – 120 minutes
RGB – 8x180s – 24 minutes each – binned 2x2
182 minutes total exposure – 3 hours 2 minutes
Imaged June 22nd, 2019 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/48114923327/sizes/l