This system was located approximately forty thousand light years from the galactic core and approximately seventy thousand light years from the Bajoran system in the Alpha Quadrant. Idran was located 4.7234 light years away from the terminus of the Bajoran wormhole.
In 2369, the Danube-class runabout USS Rio Grande traveled through the Bajoran wormhole into the Gamma Quadrant. Upon entering the quadrant, the runabout's computer identified the nearest system as Idran based on a hydrogen-alpha spectral analysis from the Quadros-1 probe survey. (DS9: "Emissary"; Star Trek: Voyager, Season 7 production art )