The other highlight in Perseus is the Perseus Double Star Cluster—a fuzzy patch to the naked eye that becomes two separate clusters of stars through binoculars.

Finding the double cluster is easy if you've already found the W of Cassiopeia. Imagine a line from the star in the middle of the W through the star on its immediate lower left and continue for seven degrees of sky until you reach a faint patch of luminosity. To measure seven degrees, extend your arm, hold your four fingers together, and measure from the edge of your index finger to the edge of your little finger.

Both clusters are about 7,000 light-years away and are part of the Perseus arm, one of the spiral arms of the Milky Way. The two clusters are a few hundred light-years apart.