Entity: APHELION
Aphelion refers to the point in an object's orbit around the Sun where it is farthest from the Sun. It is a term commonly used in astronomy to describe the position of celestial bodies in their orbits.
APHELION
Etymology
The term 'aphelion' is derived from the Greek words 'apo' meaning 'away from' and 'helios' meaning 'sun'.
Definition
Aphelion refers to the point in an object's orbit around the Sun where it is farthest from the Sun. It is a term commonly used in astronomy to describe the position of celestial bodies in their orbits.
Historical Context
The concept of aphelion has been known since ancient times, with astronomers like Johannes Kepler and Nicolaus Copernicus contributing to the understanding of planetary motion.
Cultural Significance
Aphelion plays a crucial role in determining the shape and characteristics of planetary orbits, influencing factors such as climate and seasons on Earth.
Related Concepts
Aphelion is related to perihelion, which is the point in an object's orbit closest to the Sun.
See Also
- Perihelion
- Orbit
- Celestial Body
The aphelion is the point in the orbit of a planet or a comet at which it is farthest from the sun.