Asdroni was the largest of the three moons of the planet Rhigar in the Rata Nebula which housed the Chiss military academy attended by Jagged Fel. Larger than either the inner forest moon or ocean-covered Rhigar 3 orbiting beyond it, Asdroni loomed pale in the planet's night sky. Nothing is known for sure about its climate, however, and in contrast with its companions, it may have been airless.