New CCD Photometric Study of AM Cnc
  We present in this paper the new study of variable star AM Cnc, a short
period RRab star, in orther to determine, through the light curve and the
physical parameters. The Star were observed for a total of 293 sessions
shooting, and exhibits light curve modulation, the so called Blazhko effect
with the shortest modulation Period=0d.559233 ever observed. We observed this
star with the 0,6 mt telescope of the Astronomical Observatory of Andrate (OAA)
- To and the result detect small but definite modification in temperature and
mean radius of the star itself. All results are compared with previously
published literature values and discussed.
