Are Messier objects all the same type of celestial bodies?
No
Yes
Answer
Messier objects are not all the same type of celestial bodies. They are a collection of objects that were cataloged by Charles Messier in the 18th century. The objects in the Messier catalog include nebulae, star clusters, galaxies, and comets.
Messier's Celestial Odyssey: The Enchanting World of Charles Messier