Trill-Herf-Xesh-723 was the designation given to the one and only natural satellite of the planet Sonos in the Outer Rim Territories. Due to its irregular orbit, the eastern side of the moon remained facing Sonos for over half a local year, and was most often seen in its crescent phase. Because of this, it was commonly referred to as the Crescent Moon. A temple on Sonos was named after it.