For additional information please contact:
| Dr. Luísa Bastos | Dr. Joana Fernandes | ||
| Astronomical Observatory | Department of Applied Mathematics | ||
| Monte da Virgem | Rua do Campo Alegre, 687 | ||
| 4430-146 Vila Nova de Gaia, Portugal | 4169-007 Porto, Portugal | ||
| Tel: +351 227861290 | Tel: +351 220100878 | ||
| Fax: +351 227861299 | Fax: +351 220100809 | ||
| e-mail: lcbastos@fc.up.pt | e-mail: mjfernan@fc.up.pt | ||
| Dr. Machiel Bos | |||
| Astronomical Observatory | |||
| e-mail: msbos@fc.up.pt |