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Messier catalog definition

Mes·sier· catalog (mes′ē ā′)

Astron. a listing of 109 galaxies, star clusters, and nebulae
often called Messier's catalog

Etymology: after Charles Messier

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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