COMMISSION 27 OF THE I. A. U.
        INFORMATION BULLETIN ON VARIABLE STARS
                    Number 1576

                                 Konkoly Observatory
                                 Budapest
                                 1979 March 26




       PHOTOELECTRIC MINIMA OF ECLIPSING VARIABLES


     The following Table I contains minima of the eclipsing
variables V566 Oph and VW Cep obtained during the year 1978
at the Kryonerion Observatory, Greece. The observations were
made with a 48-inch Cassegrain reflector (Contopoulos and Banos
1976) and a two beam multi-mode photometer (Goudis and Meaburn,
1973). The two intermediate pass-band filters used were selected 
to be in close accordance with the standard UBV colour system.
     All the times of minima and the mean errors sigma were 
calculated by the method of Kwee and Van Woerden.
     The successive columns contain the name of the star, the
heliocentric time of minimum, the mean error sigma, the difference
O-C, the filter used and remarks. The O-C for V566 Oph was 
computed from the elements of Dawson and Narayanaswamy (1977) while
the O-C for VW Cep was computed using the elements of Cristescu
(1978).


                   Table I
-------------------------------------------------------------
                  HJD
Star           2440000+   sigma       O-C    Filter    Rem.
-------------------------------------------------------------
V566 Oph       3676.4026  +-0.0003   +0.0084   B,V
V566 Oph       3677.4272  +-0.0004   +0.0089   B,V      Min II
VW Cep         3678.5786  +-0.0006   +0.0045   B,V      Min II
VW Cep         3679.5510  +-0.0002   +0.0028   B,V
VW Cep         3680.6646  +-0.0003   +0.0032   B,V
-------------------------------------------------------------




                          P.G. NIARCHOS
                      Department of Astronomy
                      University of Athens
                      Panepistimiopolis, Athens 621
                      Greece




References:

Contopoulos, G. and Banos, C.: 1976, Sky and Telescope, 51, 154 [BIBCODE 1976S&T....51..154C ]
Cristescu, C.: 1978, I.B.V.S. No. 1383
Dawson, D., Narayanaswamy, J.: 1977, P.A.S.P. 89, 47 [BIBCODE 1977PASP...89...47D ]
Goudis, C. and Meaburn,J.: 1973, Astrophys.Space Sci., 20, 149 [BIBCODE 1973Ap&SS..20..149G ]