Astrodynamics basics - Eccentricity
The eccentricity is one of 5 basic elements to describe the orbit of any objects in the Solar System. The Keplerian Elements.
Now the eccentricity is defined between 0 and infinity with the following properties:
0: Perfect Circle
0 - 1: Elliptic Orbit
1: Parabolic Orbit
Larger 1: Hyperbolic Orbit
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