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physical object > natural object > celestial body > collection of stars > star cluster > globular cluster
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globular cluster
subjectfact 
globular clusterhas diameter about 100 light-yearshas source: Croswell, K. 1995 The Alchemy of the Heavens, Anchor Books, 2001-09-27 09:30:56.0
has orbit elongated, around the galactic centerhas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:56.0
is a part of halo2001-09-27 09:30:56.0
has age oldest stellar formation in the Galaxyhas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:56.0
has number of stars 105 to 106has source: Lightman, A., Brawer, R. 1990 The Lives and Worlds of Modern Cosmologists, Harvard University Press, 2001-09-27 09:30:56.0
has catalog globular cluster catalog2001-09-27 09:30:56.0
has spectra low abundances of heavy elementshas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:56.0
has velocity very highhas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:56.0
has mass 104 to 106 Msunhas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:56.0
has location most are in the halo some are members of the thick diskhas source: Croswell, K. 1995 The Alchemy of the Heavens, Anchor Books, 2001-09-27 09:30:56.0
has definition A tightly packed, symmetrical group of thousands of very old (pure Population II) stars. The stellar density is so great in the center that the nucleus is usually unresolved. The stars within a globular cluster orbit each other because of their mutual gravity.has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, has URL: http://www.seds.org/messier/glob.html, 2001-09-27 09:30:56.0
is a kind of star clusterhas source: Ferris, T. 1988 Coming of Age in the Milky Way, Morrow, 2001-09-27 09:30:56.0
physical objecthas angular momentum2001-09-27 09:27:27.0
has momentum2001-09-27 09:27:27.0
has temperature2001-09-27 09:27:27.0
has volume2001-09-27 09:27:27.0
has extent2001-09-27 09:27:27.0
has material2001-09-27 09:27:27.0

Kinds of globular cluster :

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