The term COMPONENT OF THE PERSEUS CLUSTER can be summarized as a GALAXY that is part of the Perseus Cluster. The Perseus Cluster is a large cluster of galaxies located in the constellation of Perseus and is one of the most massive and X-ray luminous clusters known. It is composed of hundreds of galaxies, including the GALAXY NGC 1275, which is the brightest member of the cluster. The other galaxies in the cluster are referred to as components of the Perseus Cluster.