When Is Earth Closest To The Sun [top]

In the 17th century, astronomer Johannes Kepler discovered that planets do not travel in perfect circles. Instead, they travel in , which are elongated or oval-shaped paths.

: Approximately 91.4 million miles (147.1 million kilometers). when is earth closest to the sun

Earth’s orbit is not static. Over vast periods of time, the shape of our orbit undergoes predictable cycles known as . In the 17th century, astronomer Johannes Kepler discovered

The measure of how much an orbit deviates from a perfect circle is called its eccentricity. A perfect circle has an eccentricity of . Earth’s orbital eccentricity is roughly 0.0167 . In the 17th century