Sharpless 128 (LBN 443 and others) is a HII region located in Cepheus. It has been misclassified as a planetary nebula (PK 097+03 1, Abell 77 and others) in the past.
Ha – 24x1800s – 720 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
840 minutes total exposure – 14 hours
Imaged over six nights in October and November, 2017 and September, 2018 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
HaRGB - https://www.flickr.com/photos/dcrowson/31078436418/sizes/l