perihelion concept from the Astronomy knowledge base

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perihelion

subject fact

perihelion has antonym aphelion 2001-09-27 09:30:04.0
has definition The point in the orbit of an object orbiting the Sun where it is closest to the Sun's center of mass. Earth's perihelion occurs early in January. has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:30:04.0
is an instance of Sun orbital event

Sun orbital event has participants planet, Sun

orbital event has period 1 orbital period

event has duration 2001-09-27 09:29:57.0
has synonym world point
has time of occurrence

perihelion	has antonym aphelion
	has definition The point in the orbit of an object orbiting the Sun where it is closest to the Sun's center of mass. Earth's perihelion occurs early in January.
	is an instance of Sun orbital event
Sun orbital event	has participants planet, Sun
orbital event	has period 1 orbital period
event	has duration
	has synonym world point
	has time of occurrence