IC_2116 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 vivid colors, which are produced by the ionization of gas and dust by nearby young stars. The nebula is approximately 1,000 light-years away from Earth and spans about 20 light-years across. IC_2116 is often studied by astronomers to understand the processes of star formation and the dynamics of interstellar matter in our galaxy, the Milky Way.