COMMISSION 27 OF THE I. A. U.
           INFORMATION BULLETIN ON VARIABLE STARS
                       Number 2517

                                           Konkoly Observatory
                                           Budapest
                                           4 May 1984

                                           HU ISSN 0374-0676


             THE BINARY SYSTEM V368 CASSIOPEIAE

  The binary system V368 Cassiopeia was observed at the Bucharest Observatory 
with a 50-cm telescope using an EMI 6256-B uncooled photomultiplier in
the interval 1978-1981. The light curve has been obtained in the UBV-system
using the comparison star BD+58d567.
  The observations have been represented using the ephemeris


Phase = (Hel. J.D. - 25554.320)/4.451642

given in the Second Supplement to the Third Edition of the GCVS (1974). In
Figure 1 the U light curve is represented from 298 individual observations.
The preliminary elements have been computed using a Horak-type model while


                             [FIGURE 1]


the improvement of the solution yielded from the WINK-model by Wood. The
results are given in Table I and the theoretical light curve is represented
in Figure I by solid line.

              Table I
Fixed parameters         Auxiliary parameters        Variable parameters

T1 = 23800K                a1 = 0.3271                 r1 = 0.3196
u1 = 0.250                 b1 = 0.3197                 r2 = 0.2147
u2 = 0.600                 c1 = 0.3120                 i  = 89d731
w1 = 0.0                   a2 = 0.2204                 T2 = 9705K
w2 = 0.5                   b2 = 0.2136                 L1(norm) = 0.9679
q  = 0.47                  c2 = 0.2103                 L2(norm) = 0.0321
                           L1(app) = 0.2945
                           L2(app) = 0.0098

The agreement between the theoretical light curve and observations (crosses)
seems to be satisfactory. Similar solutions have been obtained for B and V
filters.


           C. CRISTESCU, G. OPRESCU, M.D. SURAN

           Center for Astronomy and Space Sciences
           str. Cutitul de Argint Nr. 5
           75212 Bucharest, Romania

Reference:

Kukarkin, B.V. et al., (1974) The Second Supplement to the Third Edition
of the GCVS, Moscow, Nauka [BIBCODE 1974sstt.book.....K ]