galaxy cluster

NGC 7465 – An Active Galaxy in Interaction

NGC 7465 – An Active Galaxy in Interaction NGC 7465 is a galaxy located in the constellation of Pegasus, at a distance of approximately 22 Mpc, equivalent to about 72 million light-years. SIMBAD currently classifies it as a Seyfert 2 galaxy, although near-infrared spectroscopic studies have found evidence that led to its classification as a […]

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Abell 2197 – A Galaxy Cluster in the Hercules Supercluster

Abell 2197 – A Galaxy Cluster in the Hercules Supercluster Abell 2197 (ACO 2197) is a galaxy cluster located in the constellation of Hercules, at a distance of more than 400 million light-years. It has a relatively irregular structure and lies approximately 1.5° north of Abell 2199 on the sky. Both clusters have similar redshifts

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NGC 5139 – Omega Centauri, the Giant of the Globular Clusters

NGC 5139 – Omega Centauri, the Giant of the Globular Clusters NGC 5139, popularly known as Omega Centauri, is the largest and brightest globular cluster in the Milky Way. Located in the constellation of Centaurus, about 15,800 light-years from Earth, it contains several million stars concentrated within an enormous gravitational sphere. With an approximate diameter

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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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