Lightcurves and Rotation Periods of 50 Virginia, 57 Mnemosyne, 58 Concordia, 59 Elpis, 78 Diana, and 529 Preziosa

Synodic rotation periods and amplitudes were found for 50 Virginia: 14.312 ± 0.002 h, 0.14 ± 0.01 mag; 57 Mnemosyne: 25.281 ± 0.002 h, 0.10 ± 0.01 mag; 58 Concordia: 9.899 ± 0.001 h, 0.10 ± 0.01 mag; 59 Elpis: 13.672 ± 0.001 h, 0.16 ± 0.01 mag; 78 Diana: 7.2929 ± 0.0001 h, 0.06 ± 0.01 mag; 529 Preziosa: 25.943 ± 0.001 h, 0.30 ± 0.02 mag.