Aleksandr DUBYAGO, USSR Astronomer; specialist in theoretical astronomy; Professor, Kazan University, since 1944.
DUBYAGO, Aleksandr was born in 1903. Son of astronomer D. I. Dubyago.
Studied the motion of Brooks’ and Daniell’s comets and structure and decay of comets. Author of a guide for determining the orbits of small planets, comets and meteors. Observed variable stars and did research on geodesy and gravimetry.