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abstraction > mathematical concept > unit > time unit > month

month
subject			fact

month	has definition The period of one complete synodic or sidereal revolution of the Moon around the Earth; also a calendrical unit that approximates the period of revolution.
	is a kind of time unit
time unit	is a unit of time
unit	has historical origin
	represents

Kinds of month :

• anomalistic month (3 facts) - The interval between two successive perigee passages of the Moon.
• nodical month (4 facts) (Draconic month) - The interval of time between two successive transits of the Moon through its ascending node.
• synodic month (3 facts) - The period of time between two successive identical phases of the Moon e.g., new Moon to new Moon or full Moon to full Moon (cf. lunation).