9589 Deridder (1990 WU5) is a main-belt asteroid discovered on November 21, 1990 by E. W. Elst at the European Southern Observatory.== External links ==*[http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=9589+Deridder JPL Small-Body Database Browser on 9589 Deridder] - Source: Wikipedia
