Coma cluster

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Coma cluster

A very rich cluster of galaxies, near the north galactic pole, in the constellation Coma Berenices that contains at least 1000 bright elliptical and S0 galaxies. It is about 6 megaparsecs in diameter and is in the form of two equal subclumps, each with a central dominant galaxy associated with a radio source: an elliptical, NGC 4889, and an S0 galaxy, NGC 4874. The cluster is about 90 megaparsecs distant and is moving away from Earth at approximately 6700 km s–1.

Coma cluster

[′kō·mə ‚kləs·tər]
(astronomy)
A group of over 1000 bright galaxies having a recession velocity of about 4300 miles (6900 kilometers) per second.
An open cluster of about 100 stars at a distance of about 80 parsecs (1.5 × c1015 miles or 2.5 × 1015 kilometers).
References in periodicals archive ?
But NGC 4676 lies far in the background at a distance of 300 million light-years in the outskirts of the rich Coma Galaxy Cluster (Abell 1656).
Caption: Hundreds of dark galaxies lurk about 340 million light-years away in the Coma galaxy cluster (pictured).
It nearly edged the current record holder of a black hole weighing 21 billion suns and resides in the crowded Coma galaxy cluster that consists of over 1,000 galaxies.
Probing turbulence in the Coma galaxy cluster, A and A426 , 387 (2004).
My last planetary this month is Longmore-Tritton 5 (LoTr 5), a dim giant located only 2[degrees] south of the Coma Galaxy Cluster.