Kepler's equation

Named after Johannes Kepler (1571–1630), German mathematician and astronomer.

Kepler's equation

1. (astronomy, celestial mechanics) the mathematical relationship between the mean anomaly (M) and the eccentric anomaly (E) of a planet in an elliptical orbit with eccentricity (${\displaystyle \textstyle \epsilon }$). ${\displaystyle M=E-\epsilon \cdot \sin(E).}$

• Kepler's laws