Named for the capital of Nordrhein-Westfalen and the sister city of Rostov-on-Don {see planet (4071)}. Founded more than 1100 years ago, Dortmund is now one of the largest industrial, financial and cultural centers in Germany. (M 22507) _ _.
Discovered on 7-9-1981 in Nauchnyj by Karachkina, L. G.