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 ?
The Coma cluster houses nearly 20 times as many dark galaxies as previously known, researchers report.
ISLAMABAD -- After analysing data obtained with the Subaru Telescope, astronomers have discovered 854 "ultra dark galaxies" filled with mysterious dark matter in the Coma Cluster, one of the richest cluster of galaxies containing thousands of systems.
The Coma cluster, a non-cool cluster, is filled with gas at a scorching 100 million degrees Celsius.
It shares an evolutionary path with some of the most massive clusters we see today, including the Coma Cluster and the recently discovered El Gordo Cluster," said team member Mark Brodwin of the University of Missouri-Kansas City.
In addition, 18 papers reported research results in such areas as the dark matter halo shape of NGC 2976 via stellar kinematics, investigating inner disk lifetimes in Ophiuchus, barred galaxies in the Coma Cluster, and detailed abundances in a metal-poor stellar stream.
While investigating the great Coma Cluster of galaxies, Zwicky chanced upon a dramatic difference between prevailing theory and observation.
Other LJMU astronomers are currently leading the Hubble Space Telescope survey of the COMA cluster, located some 280 million light years from Earth.
So galaxies in the Coma Cluster appear to us as they looked seven hundred million years ago, about the time the first jellyfish - its own roseate nucleus of cells and spinning arms - was developing on earth,
The galaxies live in the Coma cluster, a cache of more than 1,000 galaxies about 300 million light-years away in the constellation Coma Berenices.
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.
By the present day it has probably grown to be a large metropolis of a cluster like our neighbour, the Coma cluster.
1933 Fritz Zwicky examines galaxies in the Coma cluster and determines that there is unseen mass.