Question
What are Aphelion and Perihelion?
Answer
Aphelion is the point in the orbit of a planet or other astronomical body at which it is furthest from the Sun. The word comes from the Greek words “apo” (away from) and “helios” (Sun).
Perihelion is the point in the orbit of a planet or other astronomical body at which it is closest to the Sun. The word comes from the Greek words “peri” (around) and “helios” (Sun).
