COMMISSION 27 OF THE I. A. U.
        INFORMATION BULLETIN ON VARIABLE STARS
                     NUMBER 438

                                 Konkoly Observatory
                                 Budapest
                                 1970 June 4


         PHOTOELECTRIC PERIOD FOR BV 346

      The eclipsing binary BV 346 (BD 54 2489, HD 202 000)
was observed photoelectrically on seventeen nights between
June 21 and July 17, 1969, with the No.3 16-in. telescope of
the Kitt Peak National Observatory. Four minima were observed, 
from which the period was calculated; W. Strohmeier,
Director of the Remeis Observatory, Bamberg, Germany, provided 
fourteen more minima which confirm the proposed period
and increase the accuracy.



                                Observed minima

     Minimum              Epoch           O-C        Observer

JD 242 6861.315         -10 811         -0.073d         S
       6946.452         -10 743         -0.098          S
       6985.396         -10 712          0.022          S
       7034.231         -10 673          0.013          S
       7298.437         -10 462         -0.034          S
           .451                         -0.020          S
       7305.442         -10 456.5        0.083          S
       7367.315         -10 407         -0.037          S
            356                          0.004          S
       7719.274         -10 126          0.001          S
       8126.319         - 9 801          0.020          S
            340                          0.041          S
       8752.518         - 9 301         -0.025          S
       9193.299         - 8 949         -0.034          S
JD 244 0400.944               0          0.000          T
       0407.836               5.5       -0.004          T
       0409.713               7         -0.003          T
       0415.974              12         -0.002          T


S = W. Strohmeier
T = R. Tate

     The elements are:

       Min. = HJD 244 0400.944 + 1d252387E
                  +-      .005 +- .000005
		  
      As can be seen from the visual and blue light
curves, the star varies 0m445 in the visual and 0m455 in the
blue. The prime comparison star is BD 54 2488 (SAO 033193).
These curves are corrected for atmospheric extinction and
heliocentric time and have been converted to the standard
magnitude system.
      We are continuing work on this star.

	            [FIGURE 1]
	            [FIGURE 2]


      ROBERT C. TATE
Kitt Peak National Observatory
 and King College Observatory
     Bristol, Tennessee
         U.S.A.