Which type of star cluster is loose and disorganized?

Which type of star cluster is loose and disorganized?

Answer: The correct option is the Open Star Cluster.

There are open star clusters, also called galactic clusters which are clusters of stars that coalesced out of the same GMC and still have not fully dissipated due to gravity. Nevertheless, while being similar in density to the globular clusters, the open clusters are distinguished by the irregular and spatial distribution of their members. They usually include young stars that are between several hundred to several thousand constituent members. Open clusters are observed in the spiral regions of galaxies and include our galaxy the Milky Way. It is, however, observed that over time, these clusters are dispersed due to interactions by gravity with other objects. The Pleiades, also known as the seven sisters, and Hyades are some examples of naked-eye open clusters. Open clusters play an important role in astronomy because they allow us to estimate star formation and study the structure of galaxies. Because clusters are not very compact with stars closely packed, it is easier to observe individual stars in the cluster.