COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                      NUMBER 867

                               Konkoly Observatory
                               Budapest
                               1974 February 8

         V 445 Cas IS AN ECLIPSING VARIABLE


 The variable star V 445 Cas (=Wr 172) discovered by Weber
(IBVS No 230, 1967) was reported to be a cepheid variable probably 
with a short period. This variable star was observed photoelectrically 
with the 20 inch Cassegrain reflector of the
Konkoly Observatory at the Piszkesteto Mountain Station. The
stars BD +52d87 and BD +52d84 were used as comparison and
check stars, respectively. According my tie-in observations
made on a not quite uniform night, the magnitudes and colours
of the comparison and check stars are as follow:

               V       B-V
  BD +52d87  10.91m    0.51m
  BD +52d84  10.53m    1.41m

My photoelectric observations transformed to the UBV international 
system are listed in the Table.

 According to my observations the star is a Beta Lyrae type 
eclipsing binary with the following elements:

  Min I = J.D. 2441921.3782 + 0.67352d * E

The depth of the primary minimum is about 0.42m while that of
secondary minimum is 0.19m in V light. The B-V colour does
not vary noticeably during the eclipses, ie. both components
are of about the same spectral type.

 The light and colour curves are shown in the Figure.





                           L. SZABADOS

                        Konkoly Observatory


J.D.2441000+        V     B-V       J.D.2441000+           V     B-V
596.4330          11.06m 0.23m      917.4818             10.90m 0.22m
597.4360          11.26   .27:         .5151             10.90   .20
   .5246          10.94   .27          .5679             10.95   .22
625.2692          10.95   .24       918.3567             11.08   .20
   .3207          11.05   .21          .4749             10.93   .23
   .3754          11.07   .21          .5067             10.91   .20
   .4143          11.06   .21       921.3114             11.04   .26
629.2525          10.90   .22          .3453             11.21   .24
631.3696          11.02   .20          .3883             11.30   .22
634.3010          10.92   .19          .4223             11.13   .23
   .3635          10.96   .22          .4629             11.00   .22
650.3304          11.02   .21          .4941             10.94   .21
   .3804          10.96   .19          .5267             10.90   .22
   .4325          10.90   .22          .5486             10.89   .22
651.2332          11.06   .21          .5815             10.91   .23
   .3304          11.17   .25       944.2679             11.31   .20
   .3908          10.98   .22          .2908             11.32   .21
662.2198          10.91   .23          .3144             11.19   .22
   .2672          10.93   .20          .3380             11.07   .19
   .3445          11.00   .20          .3658             11.00   .21
689.2130          10.92   .21          .3839             10.95   .21
   .2512          10.96   .23          .4199             10.92   .22
917.3741          11.19   .21       949.2610             10.99   .22
   .4151          11:01   .23          .2932             11.03   .23
   .4378          10.97   .22          .3112             11.08   .19


                         [FIGURE 1]