The Coma Star Cluster, also known as Abell 1656, is a large group of galaxies located in the constellation Coma Berenices. It contains over 1,000 galaxies, making it one of the richest galaxy clusters known. The cluster is approximately 320 million light-years away from Earth and spans about 10 million light-years across. The Coma Star Cluster is notable for its high density of galaxies, including many bright elliptical and spiral galaxies. It is a key area of study for astronomers, as it provides insights into galaxy formation and evolution. The cluster is also part of the larger Coma Supercluster, which contains several other galaxy clusters.