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physical object > natural object > celestial body > nebula > H II region > gaseous nebula > Keyhole Nebula

Keyhole Nebula
subject			fact

Keyhole Nebula	is a part of Carina Nebula
	is an instance of gaseous nebula
gaseous nebula	has catalog gaseous nebula catalog
	has synonym emission nebula
H II region	has composition ionized hydrogen
nebula	is a part of gas
celestial body	has spectra
physical object	has location or center of gravity
	has angular momentum
	has mass
	has velocity
	has momentum
	has temperature
	has volume
	has extent
	has material

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