What was Charles Messier's primary motivation for creating his catalog of fixed, fuzzy objects?

Answer

To avoid wasting time chasing them during comet hunts.

Messier was principally a comet hunter, and his initial, purely practical goal was to list these non-cometary objects so he and others would not mistake them for the moving comets he was tracking.

What was Charles Messier's primary motivation for creating his catalog of fixed, fuzzy objects?
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