Last Updated
：2025/11/21
Messier number
Noun
Japanese Meaning
メシエ番号 - 天文カタログ番号で、100以上の銀河、星雲、その他深宇宙の天体を識別するために用いられる番号です。番号の前に「Messier」または「M」が付く形式（例：Messier 31 または M31、すなわちアンドロメダ銀河）が特徴です。
（ plural ）
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(astronomy) 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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Messier number
Astronomers referred to the galaxy by its Messier number when plotting its position on the star charts.
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Astronomers referred to the galaxy by its Messier number when plotting its position on the star charts.
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