A rogue comet is a general term for an astronomical body that has the characteristics of a comet, but does not have a permanent orbit around a star. Instead, it travels in interstellar space unless perturbed by another object. Examples of rogue comets include: ) * A magnitude 7 comet that was not associated with any known system but was located near the Romulan Neutral Zone in 2266 may have been a rogue comet. (TOS: "Balance of Terror" ) )