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 classic literature ?
He defends both,--and I think, at least, consistently.
Well, I don't like to acknowledge it, Dorcas, but I don't see how I can consistently stick to my doubts in the face of such overwhelming proof as this dog is furnishing.
During the Civil War he as- sisted in the recruiting of colored men for the 54th and 55th Massachusetts Regiments and consistently argued for the emancipation of slaves.
If he would act in this sort of manner, on principle, consistently, regularly, their little minds would bend to his.
You see," said Doctor Manette, turning to him after an uneasy pause, "it is very hard to explain, consistently, the innermost workings of this poor man's mind.
He may have consistently broken them for fifty years, yet this year he will keep them.
She has declared her wish to leave, and has assumed an attitude towards myself and my colleagues which we cannot, consistently with our duty to ourselves and her fellow students, pass over.
I add, too, that all the protection which, consistently with the Constitution and the laws, can be given, will be cheerfully given to all the States when lawfully demanded, for whatever cause-- as cheerfully to one section as to another.
They, therefore, endeavour, and that consistently, to deaden the class struggle and to reconcile the class antagonisms.
But, about three centuries afterwards, the Law decided that in all towns containing a population above ten thousand, the angle of a Pentagon was the smallest house-angle that could be allowed consistently with the public safety.
Primarily, the money consideration influenced him strongly, as the ape was no longer a source of revenue to him, having consistently refused to perform upon the stage after having discovered Tarzan.
The fourth point is consistency: for though the subject of the imitation, who suggested the type, be inconsistent, still he must be consistently inconsistent.