IC 2118, also known as the Witch Head Nebula, is a reflection nebula located in the constellation of Eridanus. It is approximately 1,000 light-years away from Earth and is associated with the bright star Rigel, which is part of the Orion constellation. The nebula gets its name from its shape, which resembles a witch's head. The Witch Head Nebula is notable for its bluish color, which is caused by the scattering of light from nearby stars. It spans about 3 degrees in the sky, making it a large but faint object that requires dark skies for observation. The nebula is part of a larger molecular cloud complex, contributing to the formation of new stars.