What was the purpose of Charles Messier's catalogue?
Help distinguish permanent and transient objects in the sky
Predict the future
Plot celestial constellations
Prove the existence of aliens
Answer
The purpose of Charles Messier's catalogue was to help distinguish permanent and transient objects in the sky. He compiled a list of objects that could be mistaken for comets, such as nebulae and star clusters. This made it easier for astronomers to observe and study the night sky.
Messier's Celestial Odyssey: The Enchanting World of Charles Messier
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