Hercules Galaxy Cluster

Object Type: Galaxy Cluster
Scope: C-9.25"; Exposure 90 minutes.

The Hercules Galaxy Cluster (Abell 2151) is a cluster of roughly 200 galaxies about 500 million light-years away in the constellation Hercules. Unusually rich in spiral and interacting galaxies, it is part of the larger Hercules Supercluster, itself a component of the Great Wall, one of the largest known structures in the universe.