Science Olympiad Reach For The Stars Practice Test

Which Globular Cluster is identified by the Messier catalog number M13?

M3 M13 M12 M15

Correct Answer:

M13

Explanation:

M13, known as the Hercules Cluster, is one of the brightest globular clusters in the northern hemisphere. It is part of the Messier catalog, a series of astronomical objects compiled by the French astronomer Charles Messier in the 18th century. Globular clusters are tightly packed groups of older stars, and M13 is particularly notable for its high density and numerous stars. It is located in the constellation Hercules and is often a target for amateur astronomers because of its brightness and beauty. The designation M13 specifically corresponds to this cluster, highlighting its recognition and importance in stellar studies. The Messier catalog helps astronomers identify and categorize these celestial objects, and M13 is an iconic example within that framework.

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