Galaxy cluster Abell 2151
The Hercules Cluster (Abell 2151) is a cluster of about 200 galaxies some 500 million light-years distant in the constellation Hercules. It is rich in spiral galaxies and shows many interacting galaxies. The cluster is part of the larger Hercules Supercluster
Photo Details
Telescope: Celestron C8N (1000mm)
Camera: Sbig ST-2000XM, Sbig Filter wheel, Baader 1.25" HLRGB filters
Mount: NJP Takahashi
Guiding: Self-guided
Exposure: LRGB 7h L 26x600sek, R 4x600sek, G 4x600sek, B 4x600sek
When: May 2012
Other information: good transparency, very good seeing