41th Annual European Association of Urology Congress - 2026, Londrina, Brezilya, 13 - 16 Mart 2026, cilt.89, ss.1-2, (Tam Metin Bildiri)
UBV observations of the X-ray binary system A0535+26/V725 Tau at the Crimean Station of the Sternberg Astronomical Institute in 1980-1998 are presented. Based on our and published data, we analyze the photometric history of the star from 1898.