A globular cluster is a spherical collection o starns that orbits a galactic core as a satellite. Globular clusters are very tichtly boond bi gravity, which gies them thair spherical shapes an relatively heich stellar densities taeward thair centers. The name o this category o starn cluster is derived frae the Laitin globulus—a smaa sphere. A globular cluster is sometimes kent mair simply as a globular.
- The Hubble Heritage team (1999-07-01). "Hubble Images a Swarm of Ancient Stars". HubbleSite News Desk. Space Telescope Science Institute. Retrieved 2006-05-26.