Meaning Of The Word Messier catalog

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Messier catalog Meaning

Messier catalog Definition
Messier catalog Definition

What's The Definition Of Messier catalog?

Messier catalog in American English
a listing of 109 galaxies, star clusters, and nebulae
noun: a catalog of nonstellar objects compiled by Charles Messier in 1784 and later slightly extended, now known to contain nebulae, galaxies, and star clusters

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