Abstract
The first high-accuracy CCD UBV RI (RI)C light curves of the recently discovered eclipsing binary V2647 Cyg = GSC 3612 1565 ( Open image in new window ) have been obtained. The photometric light curves are solved and the physical parameters of the component stars are derived. The orbit of the binary is circular, not eccentric as previously thought. Its period is two-thirds of the previously accepted value. The high accuracy of the observations has made it possible to determine reliable parameter for the binary. Obtained photometric parallax is Open image in new window , in full agreement with the GAIA direct parallax measurement. If the optical companion at an angular separation of Open image in new window is gravitationally bound to the binary, the system should be considered hierarchical.
Published Version
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