COMMISSION 27 OF THE I. A. U.
        INFORMATION BULLETIN ON VARIABLE STARS
                     NUMBER 383


                              Konkoly Observatory
                              Budapest
                              1969 October 1



          BD -6deg4932, A NEW VARIABLE STAR


      During the course of photoelectric photometry of
the eclipsing binary BS Sct, it was discovered that the
comparison star BD -6deg4932 (= HD 174553) is variable. The
purpose of this note is to alert photometric observers,
because BD -6deg4932 is (otherwise) a very attractive 
comparison star, not only for BS Sct but also for M11. In fact
it was used as the reference star in the photometric study
of M11 by Johnson, Sandage and Wahlquist (Ap.J. 124, p. 81).
The preliminary ephemeris for maximum light is JD (hel.)
2,440,389.731d + 0.1591d. The range of light variation is
about 0.10m in V, and may be variable. Further details will
be published elsewhere later.


September 18, 1969


                       D. S. HALL
                       A. D. MALLAMA
                      Dyer Observatory
                    Vanderbilt University
                   Nashville, Tenessee 37203
                           U.S.A.