M15 is a Globular Cluster in Pegasus, size 12' and magnitude 6.
It has 112 variable stars and 9 pulsars and hundreds of thousands of other stars
and even a planetary nebula (Pease1) and maybe
a black hole too!
The core has collapsed.
Distance is some 33.600 light years.
All material Copyright © Juhani Salmi & Jorma Koski, Anno Mundi 2001