COMMISSION 27 OF THE I. A. U.
        INFORMATION BULLETIN ON VARIABLE STARS
                     NUMBER 724

                                 Konkoly Observatory
                                 Budapest
                                 1972 October 12

       VARIABILITY OF BD -10d4662 CONFIRMED


    At the request of Dr. George H. Herbig BD -10d4662 (cf.
IBVS 545, 559, and 570) has been examined on plates at the
Maria Mitchell Observatory. Some 210 plates taken since
1920 show the variable, most of them near the plate edges
where the definition is not good. The chart shows the 
variable and the adopted comparison stars, whose photographic
magnitudes are only crudely estimated from S.A. 134 some
5d away. The variable is usually between b and c in brightness, 
11.3 to 11.5 mag. On three nights it was distinctly
brighter than b, at an estimated 10.9 mag. Although the 
magnitudes as such are not very reliable, the variability of
BD -10d4662 is obvious - a probable flare type star.



     Comparison Stars
                   mag
   a  BD -10d4655  10.8
   b         4657  11.1            
                                    [FIGURE 1]
   c       -       11.6
   d  BD -10d4658  11.8

     
                                     mag
6 September    1927, J.D.25130.531   10.9
27 August      1930      26216.562   11.2
                              .608   10.9
                              .652   11.0
30 September   1953      34651.526   10.9





8 June 1972              DORRIT HOFFLEIT
                         Maria Mitchell
                         Observatory