Sharpless 71 (LBN 103, PN G035.9-01.1 and others) is smaller red nebula. It is located approximately 5,500 light-years away in Aquila.
Sharpless 72 is the much larger nebula at the center of the image. Distance estimates are from around 5,000 to 8,200 light-years.
NGC 6749 (Berkeley 42 and others) is the globular cluster located below and to the left of Sh2-72.
Ha – 26x1800s – 780 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
900 minutes total exposure – 15 hours
Imaged from Dardenne Prairie, Missouri (a red zone) over seven nights in June and July, 2019 with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm.
HaRGB - https://www.flickr.com/photos/dcrowson/48701617191/sizes/l