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Definition of Messier catalogue
1. Proper noun. (astronomy) An early listing of nebulae, star clusters, and deep sky objects that might have been confused with comets by users of small telescopes. ¹
¹ Source: wiktionary.com
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1. Proper noun. (astronomy) An early listing of nebulae, star clusters, and deep sky objects that might have been confused with comets by users of small telescopes. ¹
¹ Source: wiktionary.com