COMMISSION 27 OF THE I. A. U.
            INFORMATION BULLETIN ON VARIABLE STARS
                           NUMBER 43


                                         Konkoly Observatory
                                         Budapest
                                         27 February 1964

                THE ELEMENTS OF SIX RR LYRAE STARS
                             IN M 92


      Observations of the globular cluster M 92 during 1961-1963
were made with the 28" reflector at the Main Astronomical Observatory
of the Academy of Sciences of the Ukrainian SSR. For brightness
estimates of the variables the visual method was employed, and 218
plates were thus examined. Stars 3, 11, 17 and 18(1) were chosen to
provide a calibration sequence. Elements of variables 2, 3, 4, 5 and
8(2) are:
Number       Max. JD hel             Period     (M-m) /P
  2          2437872,335           0d,643910       0,16
  3                 ,707             ,637456        ,15
  4                 ,518             ,628909        ,18
  5                 ,020             ,619674        ,35
  8                 ,039             ,673194        ,26

The period of variable 1 has been found to be changing. The following
elements satisfy the observations:

      Max_hel=JD2437872,373 + 0d,702700E + 0,00000019E^2

The value q=0,00000019 is unusually large. More observations are
desirable to obtain q with higher accuracy.

   References

(1) H. Arp, W. Baum, A. Sandage 1953, AJ 58, 4 [BIBCODE 1953AJ.....58....4A ]
(2) H. Sawyer, 1955, Publ DDO 2, 73. [BIBCODE 1955PDDO....2...33S ]

   Kiev, 5 February 1964                      E. S. KHEYLO
                                      Main Astronomical Observatory
                                        of the Academy of Sciences
                                           of the Ukrainian SSR.