Where are open clusters predominantly found within a galaxy like the Milky Way?

Answer

In the Galactic disk, specifically within the spiral arms

Open clusters are intrinsically linked to ongoing star formation, which occurs primarily within the spiral arms located in the Galactic disk. These regions contain abundant gas and dust clouds, which serve as the raw materials for new star birth. Their location in the disk means they participate in the galaxy's rotation, and they are characteristically absent from the galactic halo, which is the domain reserved for older, more stable stellar groupings like globular clusters.

Where are open clusters predominantly found within a galaxy like the Milky Way?
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