Investigation of Five Suspected Variables

Using a CCD Camera with a Kodak 401E/L chip and a Meade LX200 Schmidt Cassegrain telescope, we confirmed variability and determined preliminary light elements of three stars listed in the NSV Catalogue: NSV 11924, NSV 12971, NSV 12978. The first two are pulsating variables of the RR Lyr type. The third one is an eclipsing binary of the EW sub-class. For other two stars (NSV 10998 and NSV 12965) no variability was detected.