Which celestial reservoir, described as a vast, doughnut-shaped ring beyond Neptune, is the origin of short-period comets?

Answer

The Kuiper Belt

The Kuiper Belt is a reservoir located beyond Neptune that primarily feeds short-period comets, defined by orbits taking less than 200 years.

Which celestial reservoir, described as a vast, doughnut-shaped ring beyond Neptune, is the origin of short-period comets?
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