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 ?
William was now on the verge of sweeping through the heart of the Coma Cluster of galaxies, Abell 1656.
TEHRAN (FNA)- A team of astronomers has discovered enormous arms of hot gas in the Coma cluster of galaxies by using NASA's Chandra X-ray Observatory and ESA's XMM-Newton.
While investigating the great Coma Cluster of galaxies, Zwicky chanced upon a dramatic difference between prevailing theory and observation.
The story of dark matter began in 1933, when the brilliant but eccentric Caltech astrophysicist Fritz Zwicky recognized something strange in the Coma Cluster of galaxies.
The classic late 1970s observing guide Burnham's Celestial Handbook says: "NGC 4889 and 4874 are the only two members of the Coma Cluster of Galaxies which are likely to be detected in most amateur telescopes.
THE COMA CLUSTER of galaxies is an awe-inspiring sight -- one of many vast astronomical constructs that can put a good dent in any sense of self-importance humans might have.