Valo system
From Memory Alpha, the free Star Trek reference
The Valo system is a star system near the outskirts of the Cardassian Union, where many Bajoran refugees fled during the Occupation of Bajor. The system has three M-class planets, all containing Bajoran settlements.
The USS Enterprise-D entered the system in 2368 to investigate a possible terrorist threat from resistance leader Orta to the Federation. (TNG: "Ensign Ro")
