COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS Number 2365 Konkoly Observatory. Budapest 7 July 1983 HU ISSN 0374-0676 FLARE STARS IN THE REGION AROUND gamma CYGNI For a flare star search in the region around gamma Cygni a total of 69 multiple exposure plates (ORWO ZU 21 + UG 2 filter) were obtained with the 40in./52in. Schmidt telescope of the Byurakan Astrophysical Observatory and the 20in./ 28in. Schmidt telescope of the Bulgarian National Astronomical Observatory at Rojen between September 1981 and October 1982. Table I gives the data of the observational material. Table I ---------------------------------------------------- Telescope Time of Number of Number of T eff. exposures plates exposures ---------------------------------------------------- 40in./52in. 10min 46 275 45h50min 5min 1 6 30min 20in./28in. 10min 22 124 20h40min Total: 67h ---------------------------------------------------- Two new flare stars were discovered. The serial number according to the designations of flare stars started in our previous papers, coordinates for 1950.0, the approximate minimum brightness in pg-light, the observed amplitude of flares in U-light and the date of the flare-up are listed in Table II. Table II -------------------------------------------------------------------- Number R.A.(1950.0) D.(1950.0) m_pg(min) Deltam_U Date of flares -------------------------------------------------------------------- R 12 20h23.0m 42d23' 21 5.5 17.09.1982 B 4 30.3 39 42 >21 >4.7 19.09.1982 -------------------------------------------------------------------- KATYA P. TSVETKOVA V.V. HAMBARIAN, G.H. BRUTIAN Department of Astronomy with Byurakan Astrophysical Observatory National Astronomical Observatory Byurakan, Armenian SSR Bulgarian Academy of Sciences 378433 USSR Sofia - 11 84, Lenin Str. 72 Bulgaria