1932 BK. Discovered 1932 Jan. 29 by K. Reinmuth at Heidelberg.

Named in honor of Johannes Peter Mehltretter {1934–1982}, who became a solar astronomer at the Fraunhofer-Institut in Freiburg in 1962, after he started with work at Königstuhl Observatory. (M 4158)

Obituary published in Mitt. Astron. Ges., Nr. 59, p. 9–10 (1983).