ESS101C
Prof.
Jin-Yi Yu
Perihelion and Aphelion
qThe position in which the Earth is closest to the Sun is called “perihelion”.
qPerihelion means “near the Sun” in Greek.
qThe position in which the Earth is farthest to the Sun is called “aphelion”.
qAphelion means “away from the Sun” in Greek.
(from Earth’s Climate: Past and Future)