Astron. Astrophys. Suppl. Ser.
Volume 145, Number 2, August 2000
|Page(s)||255 - 261|
|Published online||15 August 2000|
Lightcurves of 10 Hygiea, 241 Germania and 509 Iolanda
Instituto de Astrofísica de Andalucía, CSIC, P.O. Box 3004, E-18080 Granada, Spain
Send offprint request to: M.J. López-González, e-mail: email@example.com
Accepted: 10 May 2000
The asteroids 10 Hygiea, 241 Germania and 509 Iolanda have been studied photometrically. From their lightcurves, synodic periods of 27.63 ± 0.02, 15.51 ± 0.01 and 12.72 ± 0.02 hours, and amplitudes of , and , have been deduced for 10 Hygiea, 241 Germania and 509 Iolanda, respectively. The period found for 241 Germania is a significant revision from one previously published, and we present a first indication of pole orientation and shape. A synodic period is obtained for 509 Iolanda. The solution obtained for the sense of rotation, sidereal period, pole orientation and shape properties for 10 Hygiea confirms previous results.
Key words: minor planets, asteroids / techniques: photometric
© European Southern Observatory (ESO), 2000