Tags: Star.
Zeta Cassiopeiae (ζ Cas ζ Cassiopeiae) is a star in the constellation Cassiopeia. It has a blue-white hue and is classified as a B-type subgiant with an apparent magnitude of +3.67. It is approximately 590 light years from Earth.ζ Cas is a member of an unusual group of variable stars known as Slowly Pulsating B (SPB) stars.
