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We study the newly discovered variable star GSC 4560--02157. CCD photometrywas performed in 2013--2014, and a spectrum was obtained with the 6-m telescopein June, 2014. GSC 4560--02157 is demonstrated to be a short-period(P=0.265359d) eclipsing variable star. All its flat-bottom primary minima areapproximately at the same brightness level, while the star's out-of-eclipsebrightness and brightness at secondary minimum varies considerably (by up to0.6m) from cycle to cycle. Besides, there are short-term (time scale of0.03-0.04 days) small-amplitude brightness variations out of eclipse. Thisbehavior suggests cataclysmic nature of the star, confirmed with a spectrumtaken on June 5, 2014. The spectrum shows numerous emissions of the hydrogenBalmer series, HeI, HeII.

GSC 4560--02157: a New Long-period Eclipsing Cataclysmic Variable Star