Gum 10 (RCW 19, Bran 127 and others) is the brightest HII region just above center. Imaged between 15 and 22 degrees, this one is located at approximately -36 Dec, 11,000 light-years away in Puppis.
RCW 20 (Bran 133 and others) is the HII region in the bottom left of the image. It is located at the same distance as Gum 10.
VDBH 23 is an open cluster found in the bottom right corner. This one is located approximately 1,425 light-years away.
There are a lot of other designated nebulae and dusty regions in this image. Several denser areas can also be found in the Planck Galactic Cold Clump (PGCC) catalog.
Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
240 minutes total exposure – 4 hours
Imaged on January 11th, 12th and 13th, 2021 from 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.
LRGB - https://www.flickr.com/photos/dcrowson/50868032886/sizes/l/