250,000 km (asteroid field)
Named after the Corellian scientist Ecile Vergesso, they contained an Ororo Transportation shipyard used by the Rebel Alliance and other organizations. Cruisers and fighters were repaired and refitted in these yards unbeknownst to the local Grand Moff, Kintaro.
The Tenloss Syndicate built the shipyard in the Vergesso Asteroid, a nickel-iron asteroid the size of a small moon and pockmarked with craters. Sensors had difficulty trying to penetrate this asteroid field. The field was less violent than others and also easier to navigate.