COMMISSION 27 OF THE I.A.U.
               INFORMATION BULLETIN ON VARIABLE STARS
                            Number 1456

                                                      Konkoly Observatory
                                                      Budapest
                                                      1978 August 3


      FLARE STAR OBSERVATIONS IN THE PLEIADES-REGION

Three new flare stars and five outburst repetitions of the
Pleiades-region flare stars were discovered during 14h10m of
effective observational time on the plates obtained with
60/90/180 cm Schmidt telescope at Konkoly Observatory in the
period from 1975 to 1978.
   The observations were made on Kodak 103 aO emulsion using
Schott UG 2 or UG 1 filter. In most cases we have 6 exposures
of 10 min on each plate.
   In Table I the first column gives the serial number for the
new flare stars found, columns two and three - coordinates for
1900.0, in the fourth column we give the approximate photographic
magnitude at minimum light, column five presents the observed
amplitude of the flare in U-band and column six the date of
the flare-up.


                    Table I

                                       Date of
 No     RA       D     mpg  Deltam_u   flare-up

  1    3h38.5m 25d25'  19.0   3.2     12.12.1977
  2      41.8  24 35   20.3   4.9     30.12.1975
  3      50.7  24 48   15.5   1.6     31.10.1975

   The data for the observed flare-ups of the known flare stars is
presented in the Table 2. We have used the Byurakan designation
and the Hertzsprung numbers.


                        Table II

Designation                                      Date of
No    HII     RA         D      mpg   Deltam_u   flare-up

21   1653    3h42.0m   24d25'   14.6    1.6      31.10.1975
72             38.3    23 18    18.4    3.1      30.10.1975
103            36.9    23 08    16.2    0.7      07.11.1977
27   11485     41.9    24 35    15.2    0.6      08.11.1977
478            44.4    23 01    18.7    5.4      04.03.1978


      I. JANKOVICS               M.K. TSVETKOV
                                 K.P. TSVETKOVA
      Konkoly Observatory
      of the Hungarian           Department of Astronomy
      Academy of Sciences        Bulgarian Academy of
                                 Sciences


                       [ETABLE 3]