COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                     Number 2665

                                   Konkoly Observatory
                                   Budapest
                                   13 February 1985

                                   HU ISSN 0374 - 0676


      A POSSIBLE NEW FLARE STAR IN THE PLEIADES (M 45) REGION

  Probably a new flare star in M45 region has been discovered in the course
of a photographic survey made with the 16 cm f/5.7 astrograph of the 
Osservatorio astronomico di Pieve S. Paolo (Lucca) during the autumn 1979. I revealed
this object only in October 1983, and a careful plate analysis made by prof.
L. Rosino (1984) at Asiago Astrophysical Observatory has proved that the object is
very probably a new flare star. The flare star catalogue of Haro et al. (1982)
and IBVS from October 1979 onward have been consulted, but the object does not
coincide with previous known flare stars. The object lies quite near to TON.
new ser. No. 366 = B 539 (about 1'NE).
  Deep infrared plates taken with the 67/92 cm Asiago Astrophysical Observatory
Schmidt camera are empty in the position of this suspected new flare star. Its
position has been measured with a micrometer at the Institute di Astronomia
dell'universita di Pisa.
  Its coordinates are: alpha = 3h43.3m; delta = +25d08' +-0.3' (1900)
Plate parameters: date - 19 October 1979; T.U. (middle exposure) - 21h48m
           exposure time - 50 min; emulsion - HP4 (Ilford)
The object has a panchromatic magnitude (at max.) = 13.

Acknowledgements:
Many thanks are due to prof. L. Rosino for the kind interest and helpful
suggestions. Thanks are also due to the personnel of the istituto di
astronomica dell'universita di Pisa for the use of the micrometer.


                         MATTEO SANTANGELO
                         Monte di Chiatri and Pieve
                         S. Paolo Astrophysical Observatories
                         Casella postale succ. 1,

                         55100 Lucca - Italy

References:

Haro, G., Chavira, E., Gonzales, G.: 1982, Bol. obs. Tonantzintla Vol. 3,
   No. 1, 3 [BIBCODE 1982BITon...3....3H ]
Rosino, L.: 1984, Private communication