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physical object > natural object > celestial body > collection of stars > galaxy > spiral galaxy > Sombrero galaxy

Sombrero galaxy (M 104, NGC 4594)
subject			fact

Sombrero galaxy	is an instance of spiral galaxy
	is an instance of Messier object
	is a part of Virgo
	has definition A spiral galaxy in the constellation Virgo. It was the first galaxy whose rotation was detected.
	has synonym M 104
	has synonym NGC 4594
	has Messier number 104
spiral galaxy	has classification criterion Subdivided according to the openness of the spiral arms as Sa spiral, Sb spiral or Sc spiral.
	has mass 1010 to 1012 Msun
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
galaxy	has number of stars 106 to 1012
celestial body	has spectra
physical object	has location or center of gravity
	has angular momentum
	has velocity
	has momentum
	has temperature
	has volume
	has extent
	has material

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