COMMISSION 27 OF THE I. A. U.
           INFORMATION BULLETIN ON VARIABLE STARS
                         NUMBER 84


                                      Konkoly Observatory
                                      Budapest
                                      March 1, 1965


                 MINIMA OF RZ CASSIOPEIAE

     A. Mak and L. Plaut have recently published many visual estimates 
of RZ Cassiopeiae by members of the Netherlands Association
for Astronomy and Meteorology [1]. After correspondence with Mr.
Mak, I have determined 13 minima from this material. Kordylewski's
tracing-paper method was used; O-C's were calculated from Parenago's 
elements [2].


     J.D.      E           O - C   n   Observer

2,430,000+
7960.351    +17,239      -0d.020  28   A. Mak
8003.373     17,275       -0.027  24   D. Riphagen
8003.375     17,275       -0.025  16   N. P. de Jongh
8021.299     17,290       -0.030  24   D. Riphagen
8021.304     17,290       -0.025  21   N. P. de Jongh
8046.403     17,311       -0.026  25   D. Riphagen
8089.427     17,347       -0.031  20   D. Riphagen
8089.431     17,347       -0.027  18   A. J. Schipper
8315.329     17,536       -0.032  18   D. Riphagen
8315.334     17,536       -0.027  18   A. J. Schipper
8388.248     17,597       -0.023  15   B. v. d. Kerckhove
8462.354     17,659       -0.023  24   B. v. d. Kerckhove
8524.501    +17,711       -0.029  22   B. v. d. Kerckhove

     This reduction was carried out as part of Sky and Telescope's 
eclipsing variable star program.

[1].  "Observations of Variable Stars", Report No. 6, Kapteyn 
       Astronomical Laboratory, Groningen, November 1964.
[2].  "Variable Stars", 9, 2, Moscow 1953.


                                   L. J. ROBINSON
                                "Sky and Telescope"
                                  49 Bay State Rd.
                                 Cambridge 38, Mass.