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CCD photometry of 809 Lundia obtained from September 2005 till January 2006 at Borowiec and Pic du Midi Observatories shows that this object is a synchronous binary system with an orbital period of 15.418 ±0.001 h. In this paper we present the results of photometric observations of Lundia from two oppositions in 2005/2006 and 2007 as well as the first modelling of the system. For sake of simplicity...