Brief Biographies

Abstract

After studying physics and astronomy in Bonn, Andreas completed a dissertation in nuclear physics in 1985 and followed this with work in the electrical industry as technical instructor for magnetic resonance imaging systems where he remains. His early interest in amateur astronomy from 1968 to 1992 consisted of observations with reflectors (4.5-, 6-, 8-, and 14-in.) and refractors (5- and 6-in.), but (he says) nothing scientific. He was interested in double stars from the beginning on but his telescopes were never good enough for measurement work. His first really good telescope, a 14-in. Zeiss Newtonian, was acquired in 1992 followed in 1996 with a long-focus 13-in. Cassegrain. Since then he has made several thousand measures with filar and double image micrometers and has also published more than 20 orbits in Astronomy and Astrophysics and the Circulars of IAU Commission 26.