Sh2-222, also known as LBN 762, is a bright emission nebula located in the constellation of Cassiopeia. It is part of a larger complex of interstellar gas and dust, which is often associated with star formation. The nebula is approximately 1,000 light-years away from Earth and spans about 20 light-years across. This nebula is notable for its striking appearance, featuring a mix of bright and dark regions. The glowing gas is primarily composed of hydrogen, which emits light when ionized by nearby stars. Observations of Sh2-222 contribute to our understanding of the processes involved in stellar formation and the dynamics of interstellar matter.