IC 63 is a small but striking reflection and emission nebula in Cassiopeia, only about 200 light-years away — making it one of the closest nebulae to Earth. It is being actively eroded by intense ultraviolet radiation from the nearby giant star Gamma Cassiopeiae, creating a glowing photodissociation region at its surface. The blue-white reflection component and the red hydrogen-alpha emission are both visible in longer exposures.