Dundra system

The Dundra system was a star system in the Garn belt. It had at least seven planets, with the seventh being Alfava Metraxis. (TV: The Time of Angels)

The Eighth Doctor was aware that humans had spread to the Dundra system. (GAME: "Enter... the Zygons!")

The Eleventh Doctor apologised to River Song for the delay in picking her up for their date due to "turbulence" in the Dundra system, which was in fact "a giant space dinosaur that came out of nowhere." He described that as typical for the Dundra system. (COMIC: Pond Life)