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How many globular clusters are known in the Milky Way Galaxy?

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Dense cluster of thousands of stars forming a bright, spherical shape in the night sky, representing globular cluster M13. — Globular cluster Globular cluster M13.

The Milky Way Galaxy contains more than 150 known globular clusters.

The exact number remains uncertain because dust within the Milky Way band obscures our view, likely preventing the detection of some clusters. These clusters are arranged in a nearly spherical halo around the galaxy, with a significant concentration located toward the galactic centre.12