Elliptic orbit
KEPLER ORBIT WITH AN ECCENTRICITY OF LESS THAN 1
Elliptical orbit; Elliptic orbits; Elliptical orbits; Elliptical Orbit; Closed orbit; Elliptical motion; Degenerate elliptic orbit; Radial elliptic orbit; Radial elliptic trajectory
In astrodynamics or celestial mechanics, an elliptic orbit or elliptical orbit is a Kepler orbit with an eccentricity of less than 1; this includes the special case of a circular orbit, with eccentricity equal to 0. In a stricter sense, it is a Kepler orbit with the eccentricity greater than 0 and less than 1 (thus excluding the circular orbit).