1931 UE. Discovered 1931 Oct. 18 by K. Reinmuth at Heidelberg.
Named in honor of the Dutch cartographer Wil Tirion, author of the Sky Atlas 2000.0 and of many other modern celestial maps. (M 22503)
Name proposed and citation prepared by J. Meeus, endorsed by G. Klare and L. D. Schmadel.