COMMISSION 27 OF THE I. A. U.
        INFORMATION BULLETIN ON VARIABLE STARS
                     NUMBER 163

                                   Konkoly Observatory
                                   Budapest
                                   14 October 1966


             APSIDAL MOTION IN AG PERSEI

  The following minima were determined from 30 and 16 photoelectric 
observations, respectively, with the photometer
/RCA 931-A photomultiplier, no filter/ of the 9-inch
reflector of my private observatory:

   m1 = JD 2439062.4362, E = +6958, O - C = +0.0090d

   m2 = JD 2439063.4150, E = +6958 1/2, O - C = -0.0007d


  The comparison elements are those by Joseph Ashbrook /AJ 55,
4, 1949/. This new determination of the displacement of
secondary minimum /s - p - 0.5p = -0.0175p/ permits a version
of his values for the period of apsidal motion /72 years/
and orbital eccentricity /0.0670/. I find

        omega = 60.2deg + 4.824deg /t - 1927.18/,

corresponding to P2 = 74,6 years, and e = 0.0680.

                 J. MORLEY B.Sc., A.I.M., F.R.A.S.
                 44 West St., Eston
                 Middlesbrough, Yorks
                 England