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  • Word comparison: aphelion vs. perihelion

aphelion vs. perihelion

aphelion

noun

plural aphelia
  1. Astronomy. the point in the orbit of a planet or a comet at which it is farthest from the sun.

perihelion

noun

Astronomy.
plural perihelia
  1. the point in the orbit of a planet or comet at which it is nearest to the sun.