M 15 – Globular cluster in Pegasus

Description:

The globular cluster M 15 (Messier 15) in the constellation Pegasus is not as large as M 13, but its high density of stars and resulting brightness make it a favorite among enthusiasts. Plus, it’s relatively easy to find in the sky.

The cluster is also home to a significant number of pulsars and neutron stars, remnants of massive stars that “died” when the cluster was young. Finally, it is one of the very rare clusters to contain a planetary nebula, Pease 1, in its periphery.