Three Asteroids with Changing Lightcurves: 124 Alkeste, 465 Alekto, and 569 Misa

Synodic rotation periods and amplitudes are found for 124 Alkeste: P = 9.906 ± 0.001 h, A = 0.18-0.29 mag; 465 Alekto: P = 10.936 ± 0.001 h, A = 0.14-0.16 mag; and 569 Misa: P = 11.595 ± 0.001 h, A = 0.09 ± 0.01 mag. Changes in the shapes of the lightcurves in an interval of 40 to 60 days are documented. For 124 Alkeste, V-R = 0.49 and H = 8.155 ± 0.018, G = 0.137 ± 0.019.