Messier Catalogue – Definition & Detailed Explanation – Astronomical History & Mythology Glossary

I. What is the Messier Catalogue? The Messier Catalogue is a list of astronomical objects compiled by French astronomer Charles Messier in the 18th century. It contains a total of 110 objects, including galaxies, nebulae, and star clusters. The purpose of the catalogue was to help astronomers differentiate between permanent celestial objects and transient phenomena … Read more