Perihelion vs. Aphelion

Perihelionnoun

(astronomy) The point in the elliptical orbit of a comet, planet, etc., where it is nearest to the Sun.

Perihelionnoun

(figurative) The highest point or state; the peak, zenith.

Perihelionnoun

That point of the orbit of a planet or comet which is nearest to the sun; - opposed to aphelion.

Perihelionnoun

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

Aphelionnoun

(astronomy) The point in the elliptical orbit of a planet, comet, etc., where it is farthest from the Sun.

Aphelionnoun

That point of a planet's or comet's orbit which is most distant from the sun, the opposite point being the perihelion.

Aphelionnoun

apoapsis in solar orbit; the point in the orbit of a planet or comet that is at the greatest distance from the sun