cluster of galaxies

cluster of galaxies
Gravitationally bound grouping of galaxies, numbering from the hundreds to the tens of thousands.

Large clusters of galaxies often exhibit extensive X-ray emission from intergalactic gas heated to tens of millions of degrees. Also, interactions of galaxies with each other and with the intracluster gas may deplete galaxies of their own interstellar gas. The Milky Way Galaxy belongs to the Local Group, which lies on the outskirts of the Virgo Cluster.

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Universalium. 2010.

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  • cluster — clusteringly, adv. clustery, adj. /klus teuhr/, n. 1. a number of things of the same kind, growing or held together; a bunch: a cluster of grapes. 2. a group of things or persons close together: There was a cluster of tourists at the gate. 3. U.S …   Universalium

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  • cluster — 1. noun /ˈklʌstə,ˈklʌstɚ/ a) A group or bunch of several discrete items that are close to each other. A cluster of flowers grew in the pot. b) A group of galaxies or stars that appear near each other. The Pleiades cluster contains seven bright… …   Wiktionary

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  • Virgo Cluster — Observation data (Epoch J2000) Constellation(s) Virgo Coma Berenices …   Wikipedia

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