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abstraction > mathematical concept > number > quantity > equatorial sky area > constellation > constellation named by de Lacaille > Norma

Norma (Level (Square), Nor)
subject			fact

Norma	is a part of celestial sphere
	has genitive Normae
	has boundary
	has synonym Level (Square)
	has historical origin as 'Norma et Regula' (appeared as the Level and the Square to de Lacaille)
	has acronym Nor
	is an instance of constellation named by de Lacaille
constellation named by de Lacaille	is named by Abbé Nicolas Louis de Lacaille
constellation	is a part of celestial sphere
	has component asterism
	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