J. Piironen et al., PHYSICAL STUDIES OF ASTEROIDS - XXXII - ROTATION PERIODS AND UBVRI-COLORS FOR SELECTED ASTEROIDS, Astronomy & Astrophysics. Supplement series, 128(3), 1998, pp. 525-540
We present lightcurves of selected asteroids. Most of the asteroids we
re included to obtain refined spin periods. Enhanced periods were dete
rmined for 11 Parthenope, 306 Unitas and 372 Palma. We confirmed the s
pin periods of 8 Flora, 13 Egeria, 71 Niobe, 233 Asterope, 291 Alice,
409 Aspasia, 435 Ella and 512 Taurinensis. We determined also BV-colou
rs for most of the included asteroids and UBVRI-colours for a total of
22 asteroids.