Volume 508, Number 3, December IV 2009
|Page(s)||1503 - 1507|
|Section||Planets and planetary systems|
|Published online||08 October 2009|
VII. 350 Ornamenta, 771 Libera, and 984 Gretia
Astronomical Observatory, Adam Mickiewicz University, Słoneczna 36, 60-286 Poznań, Poland e-mail: email@example.com
2 Geneva Observatory, 1290 Sauverny, Switzerland
3 Les Engarouines Observatory, 84570 Mallemort-du-Comtat, France
4 IMCCE – Paris Observatory – UMR 8028 CNRS, 77 av. Denfert-Rochereau, 75014 Paris, France
5 Observatoire du Bois de Bardon, 16110 Taponnat, France
6 Association T60, 14 avenue Edouard Belin, 31400 Toulouse, France
7 Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
8 Makes Observatory, 18 rue G. Bizet – Les Makes, 97421 La Rivière, France
Accepted: 14 September 2009
We analyze photometric observations of the three main-belt asteroids 350 Ornamenta, 771 Libera, and 984 Gretia, conducted over a twelve-year interval. Our data and those of other authors allow us to determine pole and shape models using the lightcurve inversion technique. In all three cases, a single pole solution was obtained without any significant mirror solution: Ornamenta – h, , Libera – h, , Gretia – h, , . This analysis and the development of asteroid models increase the set of asteroids with known spin and shape parameters, which consists of only around 100 objects.
Key words: techniques: photometric / minor planets, asteroids
Composite lightcurves (Figs. [see full text]–[see full text]), and aspect data (Table [see full text]) are only available in electronic form at http://www.aanda.org
© ESO, 2009
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