Sh2-215 is a bright emission nebula located in the constellation of Cassiopeia. It is part of a larger complex of star-forming regions and is known for its striking appearance, which is primarily due to the ionization of gas by nearby hot stars. The nebula is approximately 2,500 light-years away from Earth and spans several light-years in diameter. This nebula is often studied by astronomers to understand the processes of star formation and the dynamics of interstellar gas. Sh2-215 is cataloged in the Sharpless catalog, which lists various nebulae and their characteristics. Its vibrant colors and structure make it a popular target for both professional and amateur astrophotographers.