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abstraction > mathematical concept > number > quantity > equatorial sky area > constellation > Crux

Crux (Southern Cross, Cru)
subject			fact

Crux	is a part of celestial sphere
	has historical image
	has genitive Crucis
	has synonym Southern Cross
	has acronym Cru
	is an instance of constellation
constellation	has boundary defined in equatorial coordinates
	is a part of celestial sphere
	has component asterism
	has historical origin asterism with pictorial or mythical significance
	has purpose to divide the celestial sphere into small visually recognizable star classification regions
equatorial sky area	is defined using equatorial coordinates
quantity	has unit
number	has value