The Constellation of Cassiopeia

The constellation of Cassiopeia is a circumpolar constellation which lies on or near the Milky Way. Cassiopeia is made up of five main stars: the irregularly variable stars alpha Cas and gamma Cas, the double star eta Cas, the triple star iota Cas, and the variable star rho Cas. The asterism clearly shows the chair upon which Cassiopeia sits. The "Bayer Stars" are generally of third and fourth magnitude, with the exception of the first four stars which make up the chair. Cassiopeia has been known as the Celestial "W," as well as being called the "Woman of the Chair" by the Romans. …