%0 Journal Article %T New photometric observations of the transiting extrasolar planet TrES-3b %A M. Va¨¾ko %A M. Jakub¨ªk %A T. Krej£¿ov¨¢ %A G. Maciejewski %A J. Budaj %A T. Pribulla %A J. Ohlert %A St. Raetz %A V. Krushevska %A P. Dubovsky %J Physics %D 2011 %I arXiv %R 10.1017/S1743921311027190 %X We present new transit observations of the transiting exoplanet TrES-3b obtained in the range 2009 -- 2011 at several observatories. The orbital parameters of the system were redetermined and the new linear ephemeris was calculated. We performed numerical simulations for studying the long-term stability of orbits. %U http://arxiv.org/abs/1108.5255v1