COMMISSION 27 OF THE I. A. U.
           INFORMATION BULLETIN ON VARIABLE STARS
                       Number 919

                                   Konkoly Observatory
                                   Budapest
                                   1974 August 25


           EPOCHS OF MINIMUM LIGHT, EZ HYDRAE

      UBV observations of EZ Hydrae, BD -13deg2854, were obtained
on a few nights in 1969 and 1970. The Johnson UBVRI photometer which
contains an RCA 1P21 photomultiplier for use with the UBV filters
was attached to the 5-ft B telescope formerly housed at the Catalina
Site No. 2 of the University of Arizona, Tucson, and now at the 
National Observatory of Mexico in Baja California, Mexico.
      An iterative process using the Hertzsprung (B.A.N. 4, 179,
1928) method yielded the epochs of minimum light listed in Table I.
The O-C'-s were computed from an improved ephemeris

         JD Hel. Min. I = 2440255.8482 + 0d.44976658 E
                                 +- 12 +-         13

determined by, introducing all available times of minimum light into
a least squares solution.

                    Table I

           JD Hel.   Epoch   O - C
          2440000+

          253.8256    -4.5   +0.0014
          255.8477     0.0   -0.0005
          269.7921    31.0   +0.0012
          634.7745   842.5   -0.0020

        An analysis of the observations will be published separately.


August 19, 1974
                                              BEVERLY B. BOOKMYER
                                              Clemson University
                                              Clemson, South Carolina
                                              29631, U.S.A.