COMMISSION 27 OF THE I. A. U.
            INFORMATION BULLETIN ON VARIABLE STARS
                         Number 2130

                                    Konkoly Observatory
                                    Budapest
                                    1982 April 28

                                    HU ISSN 0374-0676



              NEW VARIABLE STAR IN THE gamma CYGNI REGION




  On the observational material (T_eff 116^h) obtained with the 20in./28in.
Schmidt-telescope of National Astronomical Observatory at Rojen a new variable
star was discovered in the gamma Cygni region (the plates were centered at
BD+40d4165).
  The coordinates of this star for 1950.0 are:

  R.A. = 20h15.1m, D = 42d49.1

  The observational material is obtained on emulsion ORWO ZU21 with UG2
filter by the method of multiple exposures giving a possibility to observe
quick variability of the order of 10 minutes time resolution. The magnitude
variations of this star in U-light were:

 m_u max = 16.4m, m_U min > 17.5 (i.e. the star becomes fainter than
the limit of our patrol plates).
  It has been found that the star shows sharp Algol-like minima of one
night duration. We suppose that the probable type of variation is EA.
  Between September 1979 and October 1981 we observed a few minima of the
star. We give the moments of observations, when the star was found in minimum
brightness:


JD 2444495.208
   ....763.465
   ....814.470
   ....820.533
   ....846.262
   ....897.199

                           [FIGURE 1]

  The identification chart of the variable star obtained from a 40^in/52^in.
Schmidt plate (Kodak 103aF + RG610 filter, 60 minutes exposure) is presented
in Figure 1.





               KATYA P. TSVETKOVA
               Department of Astronomy with
               National Astronomical Observatory
               Bulgarian Academy of Sciences
               Sofia-1184, Lenin Str. 72
               Bulgaria