A group of similar stars that are close together is called a __ __ __ __ __ pod bunch cluster region

group of similar I stars that are close together is called a cluster. In astronomy, a star cluster is a group of stars that are gravitationally bound and spatially coextensive. There are two main types of star clusters: open clusters and globular clusters. Open clusters are loosely bound groups of up to a few thousand stars, while globular clusters are tightly bound groups of tens of thousands to millions of stars.