Visible comets originating in the Oort cloud do NOT have orbits that are

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Comets originating from the Oort Cloud have orbits that are highly elliptical, parabolic, or slightly hyperbolic, allowing them to travel into the inner solar system and become visible from Earth. Circular orbits are not characteristic of these comets, as such orbits would not bring them close enough to the Sun to develop the visible comas and tails that define their appearance from Earth.

Visible Comets Originating in the Oort Cloud Do NOT Have