We presented the first photometric and orbital period investigation for the W UMa-type binary V0339 Com. The multi-bands light curves were obtained and analyzed with the Wilson–Devinney Code. The photometric solutions suggested that V0339 Com is an A-subtype shallow contact binary with a degree of contact $f=12.0\text{\%}$. The total eclipse of V0339 Com gives a reliable mass ratio of 0.304. The asymmetry light curves are well modeled by a cool spot on either the secondary or primary. With the empirical relation derived from a catalog of individually studied contact binaries and the photometric solutions, we determined the absolute parameters of V0339 Com. Combining the eclipse timings determined from our observations and several surveys’ data with those reported in the literature, we revealed that the orbital period of V0339 Com is undergoing a secular increase at a rate of $\dot{P}=5.45\times 10^{-7}$ d$\cdot$yr⁻¹. The secular period increase implies a continuous mass transfer from the less massive secondary to the more massive primary. Based on the conservative mass transfer, the observed period increase and the Roche-lobe model, we analyzed the evolutionary status of V0339 Com and found that it may be just at the stage predicted by the thermal relaxation oscillation theory, and be involving from the current contact state to the broken-contact one.

我们对 W UMa 型双星 V0339 Com 进行了首次光度和轨道周期研究。获得多波段光变曲线并使用Wilson-Devinney Code进行分析。光度测量结果表明 V0339 Com 是 A 亚型浅接触二元，具有一定程度的接触$F=12.0\text{\%}$. V0339 Com 的全蚀给出了 0.304 的可靠质量比。不对称光变曲线很好地模拟了二级或一级上的冷点。根据从单独研究的接触二进制目录和光度学解中得出的经验关系，我们确定了 V0339 Com 的绝对参数。将根据我们的观察和几项调查数据确定的日食时间与文献报道的数据相结合，我们发现 V0339 Com 的轨道周期正在以$\dot{磷}=5.45\times 10^{-7}$ d$\cdot$年^-1。长期周期的增加意味着从质量较小的次级到质量较大的初级的连续质量转移。基于保守传质、观测到的周期增加和 Roche-lobe 模型，我们分析了 V0339 Com 的演化状态，发现它可能正处于热弛豫振荡理论预测的阶段，并涉及当前接触状态为断开的接触之一。