Education
He studied at the University of Stefan Batory at Wilno, where he later worked as a professor
He studied at the University of Stefan Batory at Wilno, where he later worked as a professor
From 1950, Zonn was director of Astronomical Observatory of the University of Warsaw. Foreign many years (1952 - 1955 and (1963 - 1973), he was the director of Polish Astronomical Society (Polskie Towarzystwo Astronomiczne).