COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                     Number 2230

                                   Konkoly Observatory
                                   Budapest
                                   1982 November 22

                                   HU ISSN 0374-0676


        PHOTOELECTRIC OBSERVATIONS OF W UMa (BD+56deg1400)



  In I.B.V.S. No. 2102, we presented two MinI and one MinII values obtained
in January 1982 and adopted the first J.D. Hel MinI as T0. We also recalculated 
the (O-C) values for the last 79 years from the available visual photographic,
photoelectric MinI and II observations. We demonstrated that for the
last few years (4-5) the (O-C) values have been steadily decreasing. In the
present observing season we resume to monitor the star (BD+56deg1400) relative
to the comparison (BD+56deg1399) with the 48 cm Cassegrain telescope and 
unrefrigerated EMI 9781 A detector. Here we present the first observations of
this observing season and confirm that the (O-C) is still decreasing:


J.D. Hel MinI  : 2445266.6163    O-C = -0.002d
J.D. Hel MinI  : 2445267.6176    O-C = -0.002
J.D. Hel MinII : 2445276.4584    O-C = -0.002



These minima were obtained only in B colour because of the higher accuracy
wanted to be obtained in the determination of the minimum times. We also
noticed within the MinII obtained on November 2, 1982 (J.D. 2445276.4584)
that there were clear fluctuations in the observed brightness as already
suggested by many authors. Meanwhile we attempt to bring out these brightness
fluctuations within the MinII by continuous monitoring of the variable star.



                 MELEK HAMZAOGLU
                 ESAT HAMZAOGLU
                 Ege University Observatory

                 P.K.21 Izmir-Turkey