Multisite observations of the pre-Main-Sequence δ Scuti star IP Per

We present preliminary results of a photometric multisite campaign on the δ Scuti-type Pre-Main-Sequence star IP Per. Nine telescopes have been involved in the observations, with a total of about 173 hour of observations over around 40 nights. Our current data permitted us to confirm the multiperiodic nature of this star and to determine at least 9 pulsational frequencies. A preliminary nonradial theoretical analysis seems to show that the star pulsates in a mixture of l=0, 1, 2 modes.