Messier numbers

A form of Messier number — A catalogue number used to identify any one of more than one hundred galaxies, nebulae, and other deep-sky objects visible in the night sky; the designation formed by the surname Messier or letter M being prepended to the number, as in Messier 31 or M31 (the Andromeda Galaxy).

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Meanings

noun
  1. pluralplural of Messier number
Cite this entry
APA

Messier numbers. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Messier%20numbers

MLA

“Messier numbers.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Messier%20numbers. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “Messier numbers,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Messier%20numbers.

Source: Messier numbers on Wiktionary, CC BY-SA 4.0.