Parabolic trajectory

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Science and technology

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What Wikipedia says

In astrodynamics or celestial mechanics a parabolic trajectory is a Kepler orbit with the eccentricity (e) equal to 1 and is an unbound orbit that is exactly on the border between elliptical and hyperbolic. When moving away from the source it is called an escape orbit, otherwise a capture orbit.

Excerpt from the Wikipedia article “Parabolic trajectory”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: ScottAlanHill, CC BY-SA 3.0, via Wikimedia Commons.