ИСТИНА

We have obtained the first photoelectric light curve of newly found eclipsing binary GSC 4292 0745 with an eccentric orbit. These observations enabled us to construct for the first time a consistent model of the binary and to discover the fast apsidal rotation of its orbit. It is most likely that the system consists of two B8 young stars with significantly different masses. Due to this fact the secondary star is more evolved and have lower temperature and is bigger than its companion. The object is very important as a test of the theory of stellar evolution and needs further photometric and spectral observations. It is very interesting, that the star seems to have very strong interstellar absorption, such as the other young stars on elliptic orbits, e.g. GG Ori, E(B-V) = 0.53, (Volkov& Khaliullin, 2002) or GSC 3152 1202, E(B-V)=1.71, (Bagaev& Volkov, in press). Perhaps we are witnessing dissipated dusty circumstellar shells.