Abstract
We present the first multicolor CCD photometry for the eclipsing binary V380 Cassiopeia (V380?Cas) observed on 34 nights in 2009 and 2010 at the University of Patras Observatory. The PHOEBE program based on the Wilson-Devinney algorithm was used to analyze the first complete BVRc Ic light curves. It was found that V380?Cas was misclassified and it is a well-detached system consisting of two main-sequence stars. A range of solutions found to give satisfactory fits to the observations is also investigated. The first orbital solution based on the photometric mass ratio q = 1.08 of almost equal temperatures and masses and orbital inclination of i = 8657 was obtained. In addition, based on all available times of light minima, including 12 new ones, a new orbital period of P = 2.714539884?days is given.
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