| Issue |
Astron. Astrophys. Suppl. Ser.
Volume 145, Number 2, August 2000
|
|
|---|---|---|
| Page(s) | 255 - 261 | |
| DOI | https://doi.org/10.1051/aas:2000105 | |
| 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: mariajose@iaa.es
Received:
23
February
2000
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