Alfava Metraxis was the seventh planet in the Dundra system, in the Garn belt. It was home to the Aplan civilisation until their extinction by Weeping Angels in the mid 47th century. By the 49th century it had been terraformed and colonised by human settlers. The atmosphere boasted a high level of oxygen and a low amounts of toxins. The Alfava Metraxis day was about eleven hours.