COMMISSION 27 OF THE I. A. U.
           INFORMATION BULLETIN ON VARIABLE STARS
                        Number 3039

                                        Konkoly Observatory
                                        Budapest
                                        29 June 1987

                                        HU ISSN 0374-0676


             SOME NEW POSSIBLE VARIABLE STARS II

  In the course of a photometric monitoring program of Be stars, it has
been found that some of the comparison stars utilized for the differential
BV photometry are themselves variable. A previous list of such stars has 
already been published (Halbedel, 1986). This collection adds to that group
24 more stars whose deviations from mean magnitude make them unsuitable for
standards.
  A comparison star was considered to be unusable for that purpose if its
average residual from mean V magnitude was 0.020 magnitudes or greater. This
is a reasonable and conservative criterion since those stars whose magnitudes
were considered to be constant showed average residuals from the mean of
0.008 V magnitudes. As 58% of the program stars are being found to be 
nonvariable, it was generally trivial to ascertain which of the two comparison
stars used for each program Be star was variable in its own right. However,
in several cases when the residuals from the mean of each comparison star
both from each other and the program Be star were unacceptably large, it was
impossible to determine which comparison was variable since the Be star may
also be variable. Therefore, both comparison stars were changed for further
observations and added to the following list, denoted by an asterisk.
  No information can be obtained concerning possible periodicity due to
the non-uniform time intervals between the observations. Spectral types in
the following table are from the SAO CATALOG unless otherwise stated.

                       Table I

STAR       SP. TYPE     STAR        SP. TYPE

HD 12709      B4 IV (1) HD 32894       A5
   13593      A3           42860*      B8
   29343*     A            43187*      A0
   29376*     B3 V (1)     44768       A0 III (1)
   46682      A2        HD 218999      A0
   49224*     A2           223043      A0
   49294*     A2           224869      A
   52124      B9        BD+53 3121     B8
   203168     A2          +51 3362     B8
   203715     A3          +47 3316     ---
   204710     B8 Ib (2)    +7 4201*    A5
   212000     B9           +7 4203*    A2


(1) --- Kennedy, P.M. 8 Buscombe, W., MK SPECTRAL CLASSIFICATIONS
  PUBLISHED SINCE JASCHEK'S LA PLATA CATALOGUE (Evanston, IL),
  (1974).


(2) --- Buscombe, W., MK SPECTRAL CLASSIFICATIONS: THIRD GENERAL
  CATALOGUE (Evanston, IL), (1977).


E.M. HALBEDEL
Corralitos Observatory
P.O. Box 16314
Las Cruces, NM
U.S.A. 88004

Reference :
Halbedel, E.M., 1986, Inf. Bull. Var. Stars No. 2919