what is earth perihelion and aphelion
Introduction. Earth revolves around the Sun in an elliptical orbit with a mean eccentricity of 0.0167. As a result, Earthâs distance from the Sun (center-to-center) varies with mean values of 0.9832899 AU (147,098,074 km) at perihelion (closest) to 1.0167103 AU (152,097,701 km) at aphelion (most distant).xtreme Perihelion and Aphelion. The extremes in Earth's perihelion and aphelion distances for the 21 st Century are listed below. Earthâs mean distance from the Sun at perihelion is 0.9832899 AU (147,098,074 km). Earthâs mean distance from the Sun at aphelion is 1.0167103 AU (152,097,701 km).