COMMISSION 27 OF THE I.A.U.
                 INFORMATION BULLETIN ON VARIABLE STARS
                              Number 2984

                                                         Konkoly Observatory
                                                         Budapest
                                                         16 February 1987

                                                         HU ISSN 0374 - 0676


                    IS V 1675 CYGNI A VARIABLE STAR?

 Berthold (1978) published the first and only observations of this bright
star. He estimated the brightness of the star on plates of the Hartha Sky
Survey and found a light variation in the range of 8.4 - 9.1 m_pg. Berthold
suspected that the star was of the type Inbs.
   I observed the star in 1986 with a photoelectric photometer attached to
the 250/3250 Cassegrain telescope at Nessa Observatory. No clear light
variation has been found. The average brightness and colour of the star are
as follows:

 V = 7.65 +- 0.03       B-V = +1.71

   The colour index is normal for an M-type star with a small interstellar
extinction. The observations will be continued in the year 1987.


                            [FIGURE 1]



                                                DIETMAR BÖHME

                                              DDR - 4851 Nessa 11
                                                    PSF 93


Reference:

Berthold, T., 1978, Hartha Mitt. Vol. 12.14