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physical object > natural object > celestial body > collection of stars > star cluster > globular cluster > class V globular cluster > M 53

M 53 (NGC 5024)
subject			fact

M 53	is a part of Coma Berenices
	is a part of halo
	has Messier number 53
	has reference NED, SIMBAD
	has synonym NGC 5024
	has discovery date 1775
	has discoverer Johan Elert Bode
	has image
	is an instance of class V globular cluster
	is an instance of Messier object
Messier object	has apparent dimension
	has apparent magnitude
	is a part of celestial sphere
	has distance from Earth
	has catalog Messier catalog
	has purpose originally to catalog all objects which could be confused with a comet
celestial body	has spectra
globular cluster	has diameter about 100 light-years
	has orbit elongated, around the galactic center
	is a part of halo
	has age oldest stellar formation in the Galaxy
	has number of stars 105 to 106
	has spectra low abundances of heavy elements
	has velocity very high
	has mass 104 to 106 Msun
	has location most are in the halo some are members of the thick disk
physical object	has angular momentum
	has momentum
	has temperature
	has volume
	has extent
	has material

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