COMMISSION 27 OF THE I.A.U.
               INFORMATION BULLETIN ON VARIABLE STARS
                            Number 1454

                                                      Konkoly Observatory
                                                      Budapest
                                                      1978 August 3


        NEW FLARE STARS IN THE PRAESEPE-REGION

In the course of searching for flare stars in the Praesepe-
Region 20 plates have been obtained by the method of multiple
exposures, with the 60/90/180 cm Schmidt-telescope at Konkoly
Observatory between 1977 November and 1978 April.
   We used Kodak 103aO plates with 2 mm Schott UG 2 filter,
each exposition was 10 min.
   Table I gives the data of three new flare stars, which were
discovered during 19.3 hours of effective coverage:


                      Table I

                                                Date of
  Designation    RA      D    mpg   Deltam_u   flare-up

       K6      5h30.7m 19d56' 18.8m   3.8m     07.11.1977
       K7        33.0  19 38  17.8    3.1      03.03.1978
       K8        42.3  20 28  16.7    1.5      03.03.1978

   There have also been registrated two repeated flare-ups on
the stars No T4 and No T12 of Haro's list. Some data of these
outbursts are given in Table II.


                       Table II

                                               Date of
   Designation  RA     D    mpg  Deltam_u      flare up

      T4     8h34.8m 18d48' 20.0m  5.4m        03.03.1978
                                   6.4         04.03.1978
      T12    8 25.9  19 45  13.0   2.1         04.03.1978
                                   2.7         31.03.1978

The tables give the following data:

Column 1: the serial number for the flare stars, found in the
          Praesepe region at Konkoly and Tonantzintla Observatories, 
          respectively. 
Column 2 and 3: The approximate coordinates for 1900.0 
Column 4: the approximate photographic magnitudes at minimum Light
Column 5: the observed amplitude of the flare-up in U-band.
Column 6: the date of the flare-up.


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