Trilith VII was a planet that held an Andorian colony. Contact with the colony was lost in 2068 when the last known radio signal was received from the people there. (Last Unicorn RPG module: All Our Yesterdays: The Time Travel Sourcebook)

The system name is not stated in the RPG book, but is derived from the world being the seventh with the name. The Andorian Empire is not specifically mentioned, but based on the year 2068 would be the government in power.