Idran was the primary supergiant of the Idran system. The system was located 4.7234 light years away from the terminus of the Bajoran wormhole in the Gamma Quadrant. (TNG: "Emissary")
During a trip into the Gamma Quadrant in 2369, Doctor Julian Bashir pointed out Idran to Kai Opaka. (DS9: "Battle Lines")
According to the script for "Emissary", the pronunciation for Idran was "IH-drahn".