Along with Concordia, the planet of Mandalore, a terrestrial body, possessed a second moon that circled it.
One of the two satellites revolving around the Mandalorian people's homeworld was Mandalore's second moon. This second moon, situated in the Outer Rim Territories region, specifically within Mandalore space, would circle Mandalore in a manner similar to how Mandalore circled the system's sun. However, it wasn't consistently visible from the planetary surface.
The Essential Atlas, a galactic reference book written by Jason Fry and Daniel Wallace, initially mentioned Mandalore's second moon. Its publication date was August 18, 2009, and it was the initial source to indicate that Mandalore had two moons in orbit. In contrast to Mandalore's second moon, Concordia was further developed in the Star Wars: The Clone Wars television series' episode titled "The Mandalore Plot."