COMMISSION 27 OF THE I. A. U.
       INFORMATION BULLETIN ON VARIABLE STARS
                    Number 1321


                                    Konkoly Observatory
                                    Budapest
                                    1977 August 10




        ECLIPSE TIMINGS OF CATACLYSMIC VARIABLES



   The following heliocentric times of eclipse of the cataclysmic
variable U Gem have been obtained from photoelectric observations
made in blue light with the No. 2, 91-cm telescope at Kitt Peak
National Observatory.


                                     Eclipse   Eclipse
HJD                (O-C)    (O-C)     Depth     Width
                                      (mag)     (day)
2443192.7960      +0.0079  -0.0007    0.70      0.0143
2443193.6806      +0.0080  -0.0006    0.65      0.0137
2443195.8038      +0.0083  -0.0003    0.71      0.0134



Residuals in the second column are based on light elements given
by Krzeminski (Ap. J. 142, 1051, 1965), while those in the third
are based on the quadratic solution given by Arnold, Berg, and
Duthie (Ap. J. 206, 790, 1976).



                                    G. S. MUMFORD
                                    Tufts University
                                    Medford, Mass USA