Austria
| University of Technology |
| University of Vienna |
Belgium
| Universite de Liege |
Czech Republic
| Academy of Sciences |
France
| Observatoire de Grenoble - LAOG |
| Observatoire de la Cote d'Azur |
| Observatoire de Lyon - CRAL |
| Observatoire de Paris - LESIA |
| ONERA |
| Universite de Nice |
Germany
| MPIA |
| MPIFR |
Great Britain
| University of Cambridge |
Hungary
| Konkoly Observatory |
Italy
| Osservatorio Astrofisico de Arcetri |
| Universita Torino |
Israel
| Technion University |
Netherlands
| Space Research Organization Netherlands |
| University of Leiden |
Poland
| Uniwersytet Mikolaja Kopernika |
Portugal
| University of Porto |
Spain
| Instituto de Astrofisica de Andalucia |
Switzerland
| Observatoire de Geneve |
ESA
| ESA |
ESO
| ESO |