Distant Galaxy Cluster around 3C324
Copyright: Mark Dickinson (STScI) and NASA
A close up view of the peculiar radio galaxy 3C324 used to locate the cluster. The galaxy is nine billion light-years away as measured by its spectral redshift (z=1.2), and located in the constellation Serpens. Based on the colors and the statistical distribution of the galaxies in 3C324's vicinity, astronomers conclude a remote cluster is at the same distance as a radio galaxy.
Last Update: 1 September 2019