German physicist Peter Castellaz (b. 1965) works in the Department of Science and Arts of the state of Baden-Württemberg. A specialist for fundamental aspects in research, he was instrumental in the support of work on minor planets at the Astronomisches Rechen-Institut. The name was suggested by L. D. Schmadel.
Discovered on 5-10-1991 in Tautenburg by Schmadel, L. D., Borngen, F.