COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                     Number 2282

                                     Konkoly Observatory
                                     Budapest
                                     1983 February 22

                                     HU ISSN 0374-0676


       PHOTOELECTRIC OBSERVATIONS OF W UMa (BD +56deg1400)


 This well known eclipsing variable has been on the observing list of the
Ege University Observatory for the last two years. Observations in two colours,
B and V are in progress. The variable was observed in October, 1982 during
two (23 and 24) and in November, 1982 during three nights (2, 23, 25). The
data for 23 and 24 October had been already reduced and Hel. Min. times were
presented (Hamzaoglu, M., Hamzaoglu, E., 1982). Here we present the latest
two minima obtained on 23 and 25 November, 1982 both in V colours, where

           JD Hel Min I=2444986.3624 + 0.33363808d*E

were used.
 So far in the published reports of this star, we presented only the minimum
times together with the (O-C) values according to the above given ephemeris.
No errors were presented. Any classical method can be used and observations
can be fitted to parabola, but asymmetry and seasonal changes within the light
curve of the star prevented us in doing so. Instead, we adopted the chord
bisection method and applied the least square fit to the mid-points of the
minima. We present the journal of data in Table I obtained from the above
given ephemeris.




                                        Table 1

 Date          J.D. Hel.      Type of   Colour   E       (O-C) days
                              Min

23 Oct.1982   2445266.61735   Min I     B        840     -0.00104+/-0.00007
24 Oct.1982   2445267.61805   Min I     B        843     -0.00125+/-0.00006
02 Nov.1982   2445276.45917   Min II    B        869.5   -0.00154+/-0.00010
23 Nov.1982   2445297.47882   Min II    V        932.5   -0.00109+/-0.00010
25 Nov.1982   2445299.47919   Min II    V        938.5   -0.00255+/-0.00008



       MELEK HAMZAOGLU, FEHMI EKMEKCI and ESAT HAMZAOGLU
              Ege University Observatory
              P.K. 21
              Izmir - Turkey


 References:
             
 Hamzaoglu, M., 1982 I.B.V.S. No. 2230
 Hamzaoglu, E., Keskin, V., Eker, T. 1982 I.B.V.S. No. 2102