Cygniai Expanse

From Memory Alpha, the free Star Trek reference

The Cygniai Expanse is a desert region on the Torothan homeworld, and the site of Zobral's encampment in 2152.

In 2152, Zobral invited Captain Jonathan Archer of the NX-01 Enterprise in a veiled attempt to win Archer's trust and thereby his assistance in attaining freedom from the oppressive Torothan clan. Archer accepted the invitation and, along with his chief engineer, Trip Tucker, joined Zobral and his clan for dinner and a game of Geskana at their encampment in the Cygniai Expanse.

After detecting the shuttlepod carrying Archer and Tucker into the Cygniai Expanse, Torothan Chancellor Trellit began an assault on Zobral's encampment. With the encampment destroyed, Archer and Trip were left stranded in the Cygniai Expanse. They were ultimately rescued by Zobral and other members of the Enterprise crew. (ENT: "Desert Crossing")