| Hercules Cluster | |
|---|---|
 | |
| Observation data (Epoch J2000) | |
| Constellation | Hercules |
| Right ascension | 16h 05m 15.0s |
| Declination | +17° 44′ 55″ |
| Brightest member | NGC 6041 |
| Number of galaxies | 300 |
| Richness class | 2 |
| Bautz–Morgan classification | III |
| Redshift | 0.03660 (10 972 km/s) |
| Distance | 156 Mpc (509 Mly) h−1 0.705 |
| X-ray flux | (15.00 ± 12.5%)×10−12 erg s−1 cm−2 (0.1—2.4 keV) |
| Other designations | |
| 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, which is itself part of the much larger Great Wall super-structure.
The cluster's brightest member is the giant elliptical galaxy NGC 6041.
