When a dark nebula collapses to form a group of stars, what is this stellar group called?

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When a dark nebula collapses to form a group of stars, it's known as an open cluster, which is a group of young stars that were formed from the same cloud of gas and dust. A galaxy is a collection of billions of stars and other celestial bodies, usually held together by gravity. A constellation is a group of stars that are viewed as forming a pattern from Earth's perspective. A globular cluster is a group of very old stars that are tightly bound together by gravity, and usually located around the edges of galaxies.

When a Dark Nebula Collapses to Form a Group of Stars