Definitions for: Perihelion


[n] periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun



Webster (1913) Definition: Per`i*hel"ion, Perihelium Per`i*he"li*um, n.; pl.
Perihelia. [NL., fr. Gr. ? about, near + ? the sun.]
(Astron.)
That point of the orbit of a planet or comet which is nearest
to the sun; -- opposed to aphelion.

Antonyms: aphelion

See Also: periapsis, point of periapsis

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