Armath was a world of the terrestrial type. This planet resided within the Armath system of the Mikaster sector. The Armath system itself was positioned within the Trailing Sectors area of the larger Expansion Region. During the year 15 BBY, Zell, an Ambassador from the world of Majoor, undertook a significant peace mission to Armath, traveling with an escort of various starships.
The initial reference to Armath occurred in the comic series Star Wars: Droids, specifically in its third issue. This issue was penned by David Manak and released by Marvel Comics on May 13, 1986. A reference book from 2009 identified the location of the Armath system, thus defining the planet's location, as being within grid square N-15.