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Hyperbolic trajectory
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==Radial hyperbolic trajectory== A radial hyperbolic trajectory is a non-periodic [[Radial trajectory|trajectory on a straight line]] where the relative speed of the two objects always exceeds the [[escape velocity]]. There are two cases: the bodies move away from each other or towards each other. This is a hyperbolic orbit with semi-minor axis = 0 and eccentricity = 1. Although the eccentricity is 1 this is not a parabolic orbit.
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