Shapley Supercluster
| Shapley Supercluster | |
|---|---|
Galaxies in the Shapley Supercluster | |
| Observation data (Epoch J2000) | |
| Constellation | Centaurus |
| Right ascension | 13h 25m |
| Declination | −30° 0′ 0″ |
| Major axis | 625 Mly (191.5 Mpc) (978 Mly (300.0 Mpc)?) |
| Distance | 200 Mpc (652 Mly) |
| Other designations | |
| Shapley Supercluster, Shapley Concentration, SCl 124, Shapley BoA, Shapley basin of attraction, Shapley–Centaurus CL, [KK95] 578, Shapley Supercl, [EET94] SCG 80, [ZZS93] 26 | |
The Shapley Supercluster or Shapley Concentration (SCl 124) is one of the largest concentrations of galaxies in the universe that forms a gravitationally interacting unit, thereby pulling itself together instead of expanding with the universe. It appears as a striking overdensity in the distribution of galaxies in the constellation of Centaurus. Its center is located roughly 650 million light-years away (z=0.046).
Latest observations suggest Shapley Concentration may contain the Laniakea (which in turn contains the Local Group, including the Milky Way) along with a few other nearby superclusters that are moving towards the structure.