The "Pacman Nebula NGC 281" is an emission nebula in the constellation Cassiopeia. It is a region of ionized hydrogen (H II region) where active star formation is taking place.

This image was captured from September 23, 2025, to September 26, 2025, at the S. A. Kolobov Observatory using an ASTROSIB RC500 telescope on an ASTROSIB AVM-700 mount with an SBIG Aluma AC4040-Ultimate (C2) astrocamera. HSO filters were used, with a total exposure time of 320 minutes.