BVR_c_I_c_ light curve observations for VZ Lib

VZ Lib is a southern triple-lined system. By analyzing all available times of light minima, orbital period changes are revisited in detail. We discovered that the...天秤座VZ星（VZ Lib）是一个南天三线光谱系统。我们通过分析所有可获取的光变极小时刻，对其轨道周期变化进行了详尽的重新研究。研究发现……