Open star clusters are visible in the disk of the Galaxy, and globular ones are mainly in the bulge and halo.

Open star clusters are visible in the disk of the Galaxy, and globular ones are mainly in the bulge and halo. Explain the reason for this difference.

Open clusters can only be where star formation occurs. During their lifetime, they do not have time to leave these areas. During their lifetime, globular clusters have time to change their orbits around the center of the Galaxy and are observed in all directions from it.

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