COMMISSION 27 OF THE I. A. U.
                INFORMATION BULLETIN ON VARIABLE STARS
                            Number 2568

                                               Konkoly Observatory
                                               Budapest
                                               1 August 1984

                                               HU ISSN 0374-0676

                   ON THE VARIABILITY OF HD 205328

  During observations of GK Cep M. Winiarski noticed certain irregularities
in the light curve of this star. Similar irregularities were also observed
before (Bartolini et al., 1965, Gleim, 1967, Dworak, 1975).
  M. Winiarski observed GK Cep during 24 nights from May 4, 1977 to December
17, 1977, with a 50-cm Cassegrain telescope and a photoelectric photometer
equipped with a 9789 QB tube and filter for V. HD 205328 was used as a 
comparison star and HD 205235 and HD 204087 as check stars.
  After analysing these observations it was confirmed that the comparison
star - HD 205328 - was variable. The amplitude of the variations was about
0.025m. Provisional elements are:

  Max. = JD 2443268.4014 + 0.65415d E

The mean light curve with these elements is presented in Figure 1, where


                             [FIGURE 1]

       Figure 1   The mean light curves of HD 205328 in V


Delta V signifies the difference of magnitude in V between HD 205328 and 
HD 205235. Each point in the plot is a normal point of ten individual 
observations. The standard deviations of Delta V and the phase for each point
are marked by solid lines.
  In view of the characteristics, HD 205328 might be considered as an
Alpha CVn star.


                   I. LELATKO
              Astronomical Observatory
              Jagiellonian University
              Cracow, Poland

References:

Bartolini, C., Mammano, A., Mannino, G., Margoni, R., 1965, Contr.Osserv.
  Astrofis.Univ. Padova Asiago, 168,1. [BIBCODE 1965CoAsi.168....1B ]
Dworak, T.Z., 1975, Acta Astr., 25, 103. [BIBCODE 1975AcA....25..103D ]
Gleim, J.K., 1967, Astron. J., 72, 503. [BIBCODE 1967AJ.....72..503G ]
Winiarski, M., unpublished