FACTOID #17: Though Rhode Island is the smallest state in total area, it has the longest official name: The State of Rhode Island and Providence Plantations.

An orbit with an eccentricity of 0 is a circular orbit.

The orbital period is equal to that for a circular orbit with the orbit radius equal to the semi-major axis (

This means that an orbit, which is defined by the orbitingbody's position and velocity, must be represented by at least the three dimensional Cartesian coordinates (position of the orbitingbody represented by x, y, and z) and the similar Cartesian components of the orbitingbody's velocity.

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