NGC 7822 is a young star forming complex in the constellation of Cepheus. The complex encompasses the emission region designated Sharpless 171, and the young cluster of stars named Berkeley 59. The complex is believed to be some 800-1000 pc distant, with the younger components aged no more than a few million years. The complex also includes one of the hottest stars discovered within 1 kpc of the Sun, namely BD+66 1673, which is an eclipsing binary system consisting of an O5V that exhibits a surface temperature of nearly 45000 K and a luminosity ~100000 times that of the Sun (Wikipedia).
Hubble Palette Narrow Band SHaO composition, total integration 10hrs, September 2015. Takahashi FSQ85 EDX at F3.9 - Avalon Linear Fast Reverse - QSI683-wsg - Astrodon 5nm NB filters.