Shapley Supercluster

Shapley Supercluster
Galaxies in the Shapley Supercluster
Observation data (Epoch J2000)
Constellation(s)Centaurus
Right ascension13h 25m [1]
Declination−30° 0′ 0″[1]
Distance200 Mpc (652 Mly)
Other designations
Shapley Concentration, SCl 124

The Shapley Supercluster or Shapley Concentration (SCl 124) is the largest concentration of galaxies in our nearby 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. It is 650 million light-years away (z=0.046).

  1. ^ a b Proust, Dominique; Quintana, Hernán [in Spanish]; Carrasco, Eleazar R.; Reisenegger, Andreas; Slezak, Eric; Muriel, Hernán; Dünner, Rolando; Sodré, Laerte Jr.; Drinkwater, Michael J. [in Italian]; Parker, Quentin A.; Ragone, Cinthia J. (June 2006). "The Shapley supercluster: the largest matter concentration in the local Universe" (PDF). The Messenger. 124 (124). European Southern Observatory (ESO): 30–31. Bibcode:2006Msngr.124...30P. OCLC 992894162.