Rotational properties of asteroids 2, 12, 80, 145 and 354 obtained by photoelectric photometry

Photoelectric observations of the asteroids 2 Pallas, 12 Victoria, 80 Sappho, 145 Adeona and 354 Eleonora have been carried out at the Teramo Astronomical Observatory, during the 1982 and 1983 oppositions and also in 1971, in the case of 12 Victoria. The observations of 2 Pallas have confirmed its period of rotation and have provided some indications on its shape; its pole coordinates have been recalculated. For 80 Sappho a probable period of about 14 hours is suggested. A discussion on the uncertainty of the rotation period of 145 Adeona is given on the basis of the new lightcurves obtained. The rotation pole of 354 Eleonora has been determined.