supercluster
Noun
Meaning
supercluster (plural superclusters)
(astronomy) An extended group of clusters of galaxies
Synonyms
Related terms
Phrases with the word
Examples
In a redshift map, galaxies in front of a supercluster have excess radial velocities towards it and have redshifts slightly higher than their distance would imply, while galaxies behind the supercluster have redshifts slightly low for their distance.
It contains the Perseus supercluster and it spans about a billion light-years, making it one of the largest known structures in the universe.