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physical object > natural object > celestial body > collection of stars > star cluster > globular cluster > class XI globular cluster

class XI globular cluster comparison table

Subject	has purpose	has location	has apparent dimension	has reference	has orbit	has material	is part of	has spectra	has volume	has catalog	has temperature	has number of star	has velocity	is an instance of	has diameter	has momentum	has apparent magnitude	has synonym	has extent	has discovery date	has mass	has image	has distance	has angular momentum	has age	has discoverer	has Messier number
M 55	originally to catalog all objects which could be confused with a comet	most are in the halo some are members of the thick disk		NED, SIMBAD	elongated, around the galactic center		halo	low abundances of heavy elements		Messier catalog		105 to 106	very high	Messier object	about 100 light-years			NGC 6809		1751	104 to 106 Msun		from Earth		oldest stellar formation in the Galaxy	Abbe Nicholas Louis de la Caille	55

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