Orbit/Definition

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https://en.citizendium.org/wiki/index.php?title=Orbit/Definition&printable=yes
A definition or brief description of Orbit.

A (nearly) closed or repeating path [1] traveled by one object around another due to the force of gravity. Orbits are approximately elliptical in shape, and can be very nearly circular. (A circle is a special case of an ellipse, where the ellipse has an eccentricity of zero.)

  1. ↑ https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-orbit-58.html
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