• Globular cluster - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Globular_cluster A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite. Globular clusters are very tightly bound by gravity, which gives ...
  • Globular Star Clusters - SEDS Messier Database

    messier.seds.org/glob.html Globular clusters are gravitationally bound concentrations of approximately ten thousand to one million stars, spread over a volume of several tens to about 200 light ...
  • Globular Clusters - Georgia State University

    hyperphysics.phy-astr.gsu.edu/hbase/astro/globular.html The globular clusters in the Milky Way are all estimated to be at least 10 billion years old and therefore contain some of the oldest stars in the galaxy.
    • Globular Clusters - The Universe From Below

      www.atlasoftheuniverse.com/globular.html Globular Clusters. Globular clusters are spherical concentrations of stars typically 100 light years across and containing thousands of stars. Globular clusters are ...
    • globular cluster | astronomy | Britannica.com

      www.britannica.com/topic/globular-cluster Globular cluster, a large group of old stars that are closely packed in a symmetrical, somewhat spherical form. Globular clusters, so called because of their roughly ...
    • Galatic Structure, Globular Clusters - NED

      ned.ipac.caltech.edu/level5/ESSAYS/Cudworth/cudworth.html GALATIC STRUCTURE, GLOBULAR CLUSTERS. Kyle M. Cudworth. Globular clusters were originally defined as rich, compact, nearly spherical, groups of hundreds of thousands ...
    • APOD Index - Stars: Globular Clusters

      apod.nasa.gov/apod/globular_clusters.html Editor's choices for the most educational Astronomy Pictures of the Day about globular clusters: APOD: 2002 December 29 - NGC 1818: A Young Globular Cluster
    • Globular Clusters Could Nurture Interstellar ...

      www.cfa.harvard.edu/news/2016-01 Globular star clusters are extraordinary in almost every way. They're densely packed, holding a million stars in a ball only about 100 light-years across on average.
    • Globular cluster - Simple English Wikipedia, the free ...

      simple.wikipedia.org/wiki/Globular_cluster A globular cluster is a group of stars of a similar age which often orbits the central bulge of a ... Globular clusters occur in the halo of a galaxy and in its disk.
    • Globular-cluster | Define Globular-cluster at Dictionary.com

      dictionary.reference.com/browse/globular-cluster Globular-cluster definition, a comparatively older, ... It is believed that globular clusters can provide information about the evolution and lifespan of stars.