(23472) Rolfriekher; (23472) Rolfriekher; (23472) Rolfriekher

A minor planet, discovered in October 1990 by the author and F. Börngen, was named officially alter Rolf Riekher. The author describes his personal relation to Riekher's book on the history of telescopes, describes the circumstances of the discovery of the minor planet. and gives its orbital parameters.