Abstract
Abstract Two color light curves of V1222 Tau were analyzed by using the latest version of the W–D code. The results show that V1222 Tau is an extreme mass ratio (q = 8.884 ± 0.149), high fill-out (f = 53.2% ± 1.9%) contact binary system. The period of V1222 Tau might have a parabolic variation according to a preliminary (O − C) analysis, with a possibly large long-term increase rate, dP/dt = +8.19 × 10−6 d yr−1.
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