COMMISSION 27 OF THE I. A. U.
       INFORMATION BULLETIN ON VARIABLE STARS
                    Number 3023


                                Konkoly Observatory
                                Budapest
                                13 May 1987

                                HU ISSN 0374-0676


  THE PROPER MOTION OF THE AGK3 VARIABLE STARS. IV.
            WY Cyg - YY Cyg - R Lac

  This is the fourth note on a program conducted to check
the proper motion of the AGK3 red variable stars which seem
to be affected by systematic errors (Stephenson 1978).
  In the previous notes (Lopez 1986; Lopez and Cesco 1986;
Lopez and Torres 1987) the redeterminations of the proper
motions of CR Gem, SS Vir and RX Peg were reported, the 
results being quite different from the values quoted in the
AGK3 but in good agreement with other determinations, thus
confirming Stephenson's (1978) hypothesis.
   In this note, we want to draw attention to three stars:
AGK3 +44 1985 = WY Cyg, AGK3 +42 2014 = YY Cyg and AGK3
+42 2207 = R Lac for which the AGK3 proper motions seem
to be spuriously large when compared with previous determinations 
(e.g. Palmer 1945; Alden and Osvals 1961). Since
first-epoch positions are not available to us, we are not
able to attempt the redetermination of new proper motions.


                    Carlos E. Lopez
                    Juan G. Sanguin
                    Obs. "Felix Aguilar"
                    Avda. Benavidez 8175 (oeste)
                    5413 Chimbas - San Juan
                    Argentina

References

Alden, H.L., Osvals, V. (1961). Publ. Leander McCormick
 Obs. XI, 111.
Lopez, C.E. (1986). IBVS No. 2864.
Lopez, C.E., Cesco, M.R. (1986). IBVS No. 2940.
Lopez, C.E., Torres, J.E. (1987). IBVS No. 2980.
Palmer, F. (1945). Lund Medd. Ser. II No. 118
Stephenson, C.B. (1978). Astron. J. 83, 816. [BIBCODE 1978AJ.....83..816S ]