COMMISSION 27 OF THE I. A. U.
         INFORMATION BULLETIN ON VARIABLE STARS
                      Number 1034

                                   Konkoly Observatory
                                   Budapest
                                   1975 August 13




      VARIABILITY OF THE delta SCUTI STAR 38 CANCRI


The variability of 38 Cnc was detected by Breger (ApJ 162, 597, 1970)
observing photoelectrically all the stars in the Praesepe Cluster
in or near the instability strip. Then Gupta and Bhatnagar (IBVS
No. 908, 1974) measured the star through B filter only and they 
determined the period P = 0.108d and the amplitude Delta m=0.07m.
38 Cnc was observed at the Merate Observatory through B filter during 
two consecutive nights and through V and U filters during one
night, respectively. The light amplitudes are as follow:

--------------------------------------------
J.D.                     Colour     Delta m
--------------------------------------------
42468.                     B       0.055m
42469.                     B        .025
42471.                     V        .040
42497.                     U        .050
--------------------------------------------

The mean period determined using all the light curves is P=0.102d
approximately. The observations in B light show clearly notable
variation's of the light amplitude from night to night; this is
usual for delta Scuti stars.
Further observations are in progress.



                       G. GUERRERO
                    Osservatorio Astronomico
                    Via E. Bianchi, 46
                    22055 Merate (Como) Italy.