The Vandor system was an inhabited planetary system. Located in a remote part of the Milky Way Galaxy, this was a binary system of a B-class giant and a pulsar. This system had at least four planets.

In 2351, the Vandor system was selected by Doctor Paul Manheim as the location for his experiments into time, as the dense gravity of the pulsar was vital for his work. He based his laboratory on a planetoid in the system, Vandor IV.

Thirteen years later, the starship USS Enterprise-D visited this system upon receiving a distress call from Jenice, the wife of Dr. Manheim. The ship's crew rescued both survivors, and isolated the origin of the Manheim Effect. (TNG: "We'll Always Have Paris")

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