COMMISSION 27 OF THE I. A. U.
            INFORMATION BULLETIN ON VARIABLE STARS
                         NUMBER 89


                                      Konkoly Observatory
                                      Budapest
                                      6 April 1965



                      BV 623 AND BV 624

     Both stars are given as a variable respectively suspected
variable star in the Catalogue of Photoelectric Magnitudes and Colours
of Southern Stars by A. W. J. COUSINS and R. H. STOY, published as
Number 64 of the Royal Observatory Bulletins.

     BV 623 = BD -15deg 5848 (6m.0) = HD 199 603 (A3)

     Comparison-stars: HD 199 443 (A3)    HD 200 157 (F5)

     The light-curve has been derived assuming a difference of
1m.46 between the comparison-stars as given in the Harvard Catalogue.
The magnitudes for the variable, however, have been corrected so that
the B-values of the photoelectric measurements made at the Cape 
Observatory fit the light-curve. Mr. A. W. J. COUSINS has been so kind to
communicate these measurements to me. By means of these measurements 
in, connection with estimated minima on Bamberg sky patrol
plates and the photometric evaluation of the plate material from the
Bamberg South-African Station, an exact period could be derived.


Min = JD 242 6160.500 + 1d.575531. E, EB, Ampl. 0m.3

Estimated minima    E      O - C    Estimated minima     E     O - C

JD 242 6160.524     0    + 0.d024    JD 843 6817.376  6764    -0d.016
       6546.478   245    - 0.027            7173.406  6990    -0.056
       6929.416   488    + 0.057            7578.312  7247    -0.061
       7386.228   778    - 0.035            7904.435  7454    -0.073
       7416.217   797    + 0.019            8287.349  7697    -0.013
           .235   797    + 0.037


Photoelectric measurements obtained at the Cape Observatory

                     E      O - C      V        B - V

JD 243 4575.438    5341    +0d.027    6m.17     +0m.25
           .411    5341    +0.030     6.18       0.25
           .444    5341    +0.033     6.19       0.24
       5636.532    6014.5  +0.001     6.02       0.22
       5692.378    6050    -0.085     6.02       0.23
       5727.285    6072    +0.161     5.95       0.24


Photometric minima (fainter than 6m.3)

       Minima       E     O - C           Minima       E       O - C

JD 243 8561.560   7871   +0d.056   JD 243 8638.362   7918.5   +0d.019
       8583.522   7885   -0.040           8640.359   7921     +0.078
       8613.440   7904   -0.057           8643.362   7923     -0.070
       8621.388   7909   +0.013

                          [FIGURE 1]

BV 624 = CoD -34deg 483 (8m.0) = HD 7 676 (A3)

Comparison-stars:

HD 7 898 (A3) 8m.00     Magnitudes are B-values from the catalogue
HD 7 817 (F8) 8m.75     of A. W. J. COUSINS and R. H. STOY.

Min = JD 243 6498.450 + 2d.47962. E, Ecl. Binary, Ampl. 0m.2

      The photoelectric measurements, used in deriving a more
accurate period, have been obtained at the Cape Observatory under
the supervision of R. H. STOY.

Photoelectric measurements obtained at the Cape Observatory

                    V       B-V       E     O-C

JD 243 6210.363   8m.40    +0m.25
       6498.398   8.42      0.32      0    -0d.052
       6542.400   8.39      0.19
       6548.376   8.40      0.21
       6561.325   8.35      0.19

       6564.306   8.38      0.30
       6567.309   8.38      0.21
       6568.300   8.38      0.18
       6570.297   8.38      0.29
           .324   8.42      0.28     29    -0d.035

       6576.315   8.36      0.19
       6583.292   8.36      0.19
       6584.298   8.43      0.22
       6888.461   8.40      0.23
       6891.423   8.41      0.28

       6893.449   8.42      0.23
       6898.438   8.42      0.21

                             [FIGURE 2]

Photometric minima (fainter than 8m.7)

    Minima          E          O - C

JD 243 8292.461   723.5       +0d.006
       8297.457   725.5       +0.043
       8318.419   734         -0.072
       8338.325   742         -0.003
       8348.302   746         +0.055

       8354.304   748.5       -0.142
       8358.280   750         +0.115
       8649.497   867.5       -0.023


Bamberg, 31 March 1965

                                         W. STROHMEIER
                                      Remeis Observatory