APHELION
- the point farthest from the sun in the path of an orbiting celestial body such as a planet.
- the point in the orbit of a planet or a comet at which it is farthest from the sun
- the point in a planetary orbit farthest from the sun [n APHELIA, APHELIONS] : APHELIAN [adj]
- the farthest point of a planet's orbit from the sun [n APHELIONS or APHELIA]