aphelian
Aphelian is a term used in astronomy to describe the point in the orbit of a celestial body, such as a planet or comet, where it is farthest from the Sun. This point is also known as the apogee when referring to the orbit of a satellite around the Earth. The opposite point in an orbit, where the body is closest to the Sun, is called perihelion.
The distance at aphelian varies for each celestial body due to the elliptical nature of their orbits.
The concept of aphelian is crucial for understanding orbital mechanics and predicting the motion of celestial