The Young Exoplanet Transit Initiative (YETI ) and results from the Bulgarian participation

The paper presents the ideas of the international initiative YETI (Young Exoplanet Transit Initiative) for searching for young exoplanets in open clusters, infor- mation about the organization of the observational campaigns as well as the preliminary results from the observations of the first cluster Tr 37. It is noted the successful participa- tion of the Bulgarian team in the observational campaigns of Tr 37 (27 observational nights with above 12000 images). Due to the interesting light curves of Tr 37-3132 obtained by the Rozhen telescopes this object was chosen for follow-up spectral observations with large telescopes in the framework of YETI.