Haute-Provence Observatory—OHP-CNRS/PYTHEAS/University of Aix-Marseille, 04870 Saint Michel l’Observatoire, France
* Oukaïmeden Observatory, Faculty of Science and Technology, Department of Physics, LPHEA, Marrakech, Morocco
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, B-3001 Heverlee, Belgium
* Physics Department, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerpen, Belgium
* Physics and Astronomy Department, Vrije Universiteit Brussel (VUB), Pleinlaan 2, B-1050 Brussel, Belgium