THE ASTRONOMICAL JOURNAL    VOLUME 110, NUMBER 3, PAGE 1083      SEPTEMBER 1995

                  PHOTOELECTRIC PHOTOMETRY OF ZWICKY GALAXIES

                     MARIANNE TAKAMIYA AND RICHARD G. KRON

       University of Chicago, Department of Astronomy and Astrophysics,
                5640 South Ellis Ave., Chicago, Illinois 60637
      Electronic mail: taka@oddjob.uchicago.edu, rich@oddjob.uchicago.edu

                                GERALD E. KRON

       Pinecrest Observatory, 2929 Poni Moi Rd., Honolulu, Hawaii 96815


                                   ABSTRACT

    Multiaperture photoelectric measurements in the B and V bands are
    presented for 601 galaxies in Volumes I, II, and V of Zwicky's
    catalogue.  Large aperture observations were made in the 1960's with
    the Lick 3 m telescope and the USNO 1 m telescope.  Systematics in
    Zwicky's magnitude system are investigated as a function of magnitude
    and direction in the sky.  The photoelectric sample is argued to be
    representative of galaxies in Zwicky's catalogue at B ~ 15.  A strong
    systematic error in Zwicky's magnitudes is apparent in Volume I fainter
    than m_z = 15.0.  The B-V color distribution is discussed.