1. Astronomical Institute of the Slovak Academy of Sciences, 059 60 Tatranská Lomnica, Slovakia
2. ELTE Gothard Astrophysical Observatory, Szent Imre h. u. 112, 9700 Szombathely, Hungary
3. MTA-ELTE Exoplanet Research Group, Szent Imre h. u. 112, 9700 Szombathely, Hungary
4. Department of Astronomy, Physics of the Earth, and Meteorology, FMPH, Comenius University, Mlynská dolina, 842 48 Bratislava, Slovakia
5. Baja Astronomical Observatory of Szeged University, Szegedi u., Kt. 766, 6500 Baja, Hungary
6. Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary
7. Thüringer Landessternwarte, Sternwarte 5, D-077 78 Tautenburg, Germany