### Formula

rmin

perihelion, minimum distance from the Sun to the planet

p

semi-latus rectum

epsilon

the eccentricity of the ellipse

rmin

perihelion, minimum distance from the Sun to the planet

p

semi-latus rectum

epsilon

the eccentricity of the ellipse

In astronomy, Kepler's laws give a description of the motion of planets around the Sun. Kepler's First Law is "The orbit of every planet is an ellipse with the Sun at one of the two foci."

p

epsilon

rmin

Precision

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