galaxy cluster

Abell 2147 – A Galaxy Cluster in the Heart of the Hercules Supercluster

Abell 2147 – A Galaxy Cluster in the Heart of the Hercules Supercluster Abell 2147 is a galaxy cluster belonging to the catalog compiled by George O. Abell, located within the region of the Hercules Supercluster, about 500 million light-years from Earth. Although some sources place it in the area of Serpens Caput, observationally it […]

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Arp 65 – A Pair of Galaxies in Gravitational Interaction

Arp 65 – A Pair of Galaxies in Gravitational Interaction The Arp 65 system corresponds to the spectacular interacting pair formed by NGC 90 and NGC 93, located in the constellation of Andromeda, about 240 million light-years from Earth. The system was included by Halton Arp in his famous Atlas of Peculiar Galaxies because of

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