COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                      NUMBER 872

                                Konkoly Observatory
                                Budapest
                                1974 February 28


          A POSSIBLE ECLIPSE IN HD 82191


   Heard and Hurkens (J.Roy.Ast.Soc. Canada 67, 306, 1973) have
given an analysis of the double-lined spectroscopic binary
HD 82191. This star is of interest because one of the components
is an Am star, and the minimum masses derived spectroscopically
are so large that there is a reasonable probability that the
system is an eclipsing one.
   On the basis of their spectroscopic results, Heard and
Hurkens supplied me with a list of predicted eclipse epochs,
and the unusual coincidence of one of these with a photometric 
night on February 7, 1974 allowed a search for an eclipse.
One does appear to have been observed, a primary eclipse, lasting 
approximately three hours, but only 0.03 mag. deep in V.
Details of these observations will be published elsewhere, but
clearly so shallow an eclipse needs to be verified, and I am
therefore drawing the attention of other photometrists to this
system. Although the eclipse is too shallow to be useful in 
determining radii, etc., the mere knowledge that an eclipse is
present at all will suffice to determine the masses.

   HD 82191 has m_V=6.6 and coordinates alpha_1975 = 9h29.8m,
delta_1975 = +27d30'. HD 81940, an A star of m_V = 8.4 and 23' due
west of HD 82191, was used as a comparison star.
   Forthcoming epochs of eclipse predicted by Heard and
Hurkens are as follows:

        JD 2442113.601   JD 2442158.660
                22.613           67.672
                31.625           76.684
                40.637           85.696
                49.649           94.708

February 14, 1974.
                           J.D. FERNIE

                           David Dunlap Observatory