Perseus ASee Perseus cluster.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
Perseus A[′pər·sē·əs ′ā]
A strong radio source, having a redshift z = 0.018 and centered on the Seyfert galaxy NGC 1275, that undergoes extremely violent outbursts.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.