COMMISSION 27 OF THE I. A. U.
        INFORMATION BULLETIN ON VARIABLE STARS
                     NUMBER 308


			       Konkoly Observatory
			       Budapest
			       1968 November 3

  Veroffentlichungen der Remeis-Sternwarte Bamberg
Astronomisches Institut der Universitat Erlangen-Nurnberg
		Band VII, Nr. 79


		  ECLIPSING BINARY BV 894

	    Part A: PHOTOELECTRIC OBSERVATIONS

  BV 894 (= HD197070=CPD -72deg2115) was independently
noted as variable in (UBV) observations made at Siding
Spring in September 1968. Because of the possibility that
it was an ultrashort period variable, observations were
obtained on 5 nights. The star is apparently a contact
binary with a period near onehalf day. The observations,
and the Australian Eastern Standard Time (AEST), are listed
in Table 1. The colors, which show little or no change
during the cycle, are B-V = +0.34m and U-B = +0.03m. The
amplitude is near 0.5m.

                              Table 1.
Date   AEST       V_E    Date   AEST       V_E    Date   AEST       V_E
1968                     1968                     1968
Sept                     Sept                     Sept
20     21:25      8.67m    21   21:15      8.70m  23     19:19      8.74m
       21:50      8.68          21:25      8.97          20:45      8.75
       22:15      8.71          21:54      8.59   24     19:21      8.55
       22:30      8.73          22:50      8.52          22:07      8.81
       23:12      8.86          23:42      8.51          22:15      8.83
       23:24      8.91     22   00:26      8.50          22:23      8.85
21     00:00      8.97          19:18      8.51   27     19:35      8.62
       00:20      8.93          21:07      8.61          21:24      8.61
       20:23      8.81          22:19      8.74          22:58      8.49

 No further observations are planned.


1968 October 20
                        O.J. EGGEN

           Mt Stromlo and Siding Spring Observatories
                     Canberra, Australia



         Part B: PHOTOGRAPHIC OBSERVATIONS


  With help of the photoelectric observations by O.J.
EGGEN it was possible to obtain the elements of BV 894 from
sky patrol plates:

Min = JD 243 8228.470 + 0.562 979d . E

    M i n i m a         E           O - C
    2438204.542       -42.5        -0.001
       8228.495+        0          -0.005
       8283.395        62          +0.020
       8287.336        69          +0.020
       8295.222       118.5        +0.039
       8314.276       152.5        -0.048
       8316.278+      156          -O.017
       8555.549+      581          -0.012
       8641.402       733.5        -0.013
       8649.311       747.5        +0.014
       8992.401      1357          -0.032
       8994.412+     1360.5        +0.009
       9029.333      1422.5        +0.025
       9374.375      2035.5        -0.039
       9376.374+     2039          -0.010
       9378.372+     2042.5        +0.017
       9380.374(3/4) 2046          +0.049
       9404.252      2088.5        -0.007
       9654.198+     2532.5        -0.017
       9656.198+     2535          +0.013
    2440120.058(E)   3360          -0.022
           .083(E)   3360          +0.003
       0120.933(E)   3361.5        +0.009
       0122.888(E)   3365          -0.007
       0124.005(E)   3367          -0.015
           .010(E)   3367          -0.010
           .016(E)   3367          -0.004



Remeis Observatory
Bamberg, 1968 October 29

                         W. STROHMEIER