Vol. 83 (1991)
The 83 volume of the "Izvestia Krymskoy Astrofizicheskoy Observatorii" presents the 29 original articles, containing the results of investigations electric currents and magnetic field's structures of active regions; the results of investigations of Sun's irradiance, obtained from the Soviet mission "Phobos-2", the results of different measurements of Sun's brightness. The results of spectrophotometrical researches of stars and galaxies are considered. The method and results of galaxy's observations on the space station "Astron" are described. The results of methodic's investigations on manycanal gamma-telescope, comutations of new optic systems are given. The collection of papers is intend for specialists in astronomy and astrophysics.