COMMISSION 27 OF THE I. A. U.
            INFORMATION BULLETIN ON VARIABLE STARS
                        Number 1372

                                     Konkoly Observatory
                                     Budapest
                                     1977 December 19




             ON THE VARIABLE STAR BE HERCULIS


   This star was observed by us on photovisual and photographic 
plates of the Odessa Sky-patrol collection within JD 2436350-
2442650. Observations have been reduced to the photometric system 
close to V and B. Moments of maxima (Table 1) and minima
(Table 2) have been determined.
   Based upon these data it was shown that at different intervals 
the star's light variations were periodical, the period
values being variable. The set of elements is as follows:

 Max. JD             Min. JD     Period   Des.

2436728.4           2436769.4    74.21d    A
   7050.2              7089.9    71.51     B
   7811.5              7845.4    71.41     C
   8856.2              8886.9    72.52     D
   9973.7             40024.5    72.64     E
  41034.4              1088.8    67.46     F

  Residuals of these elements are given in the corresponding
columns of Tables 1 and 2.
   Seasonal light and colour curves have been plotted (Fig. 1).
The amplitude is variable. The amplitude decrease is fairly 
pronounced throughout seasons E and F.
   Within the first four seasons when the light variation 
amplitude was marked, colour index changed in antiphase with light
variation. The moments of maximum light and minimum colour index
do not precisely coincide. The star became red at maximum light.
In the seasons E and F colour index fluctuations nearly ceased.


                             B. POCHINOK
                             Odessa Astronomical
                             Observatory


                       [FIGURE 1a]
                       [FIGURE 1b]
                       [FIGURE 1c]
                       [FIGURE 1d]
                       [FIGURE 1e]
                       [FIGURE 1f]


                                Table 1

               BE Her. Moments of maxima.  

Max. JD   E_A   O-A     Max. JD   E_D    O-D

2436363   -5   +5.6    2438858     0    +1.8
   6648   -1   -6.2       8927     1    -1.8
   6730    0   +1.6

Max. JD   E_B     O-B    Max. JD   E_E   O-E

2437048    0     -2.2    2439980    0   +6.3
   7122    1     +0.3      40040    1   -6.3
   7405    5     -2.8
   7484    6     +5.7

Max. JD   E_C     O-C    Max. JD   E_F   O-F

2437749   -1     +8.9    2441040    0   +5.6
   7808    0     -3.5       1113    1  +11.1
   7875    1     -7.9       1430    6   -9.2
   8105    4     +7.9       1510    7   +3.4
   8168    5     -0.5       1833   12  -10.9
   8235    6     -4.9


                              Table 2  

                BE Her. Moments of minima.

 Min. JD   E_A   O-A   Min. JD   E_D   O-D
2436393    -5   -5.4   2438887    0    0.0
   6700    -1   +4.8      8959    1   -0.5
   6769     0   -0.4      9250    5   +0.4

 Min. JD   E_B   O-B    Min. JD  E_E   O-E

2437084     0   -6.0   2439957   -1   +5.2
   7163     1   +9.5     40017    0   +7.5
   7378     4   +2.0      0390    5   -2.3

 Min. JD   E_C  O-C    Min. JD   E_F   O-F

2437770    -1   -4.0   2441082    0   -6.8
   7846     0   +0.6      1161    1   +4.8
   8135     4   +3.9      1462    6  -31.6
   8202     5   -0.5      1797   10  -33.8