Mettula Orionsis

Metulla Orionsis was a star system located in Mutter's Spiral. It contained the planet Traken, the capitol of the Traken Union. It is possible that either Metulla Orionsis was one of the systems of the Union or if it was the entire Union. (DW: The Keeper of Traken)

In 1981, a temporary wave of entropy swept across part of the universe, destroying Metulla Orionsis in the process. (DW: Logopolis)