Named in memory of August Kopff (1882–1960), who as Wolf’s assistant in Heidelberg discovered and observed many minor planets. In 1924 he became Director of the Astronomisches Rechen-Institut in Berlin, and after the western section moved to Heidelberg he also became director of Heidelberg-Königstuhl Observatory. He was responsible for constructing the FK3 and initiated work on the FK4. (M 3931) _ _.