中文摘要：

在这份报纸，我们使用公制的系数和在分级张肌的理论的第二 Newtonian 以后近似获得导出秒顺序光繁殖方程和轻偏转角度并且把它与以前的工作作比较的运动的方程。这些结果为象与 micro-arcsecond 和 nano-arcsecond 精确性瞄准天体测量学的 ASTROD， GAIA，达尔文和 SIM 一样的精确天体测量学使命是有用的，并且为第二个 Newtonian 以后框架和位置推算历需要让观察决定星并且太空船位置。

英文摘要：

In this paper, we use the metric coefficients and the equation of motion obtained in the second post- Newtonian approximation of scalar-tensor theory to derive the second-order light propagation equation and the light deflection angle and compare it with previous works. These results are useful for precision astrometry missions like ASTROD, GALA, Darwin and SIM which aim at astrometry with micro-arcsecond and nano-aresecond accuracies, and need for the second post-Newtonian framework and ephemeris for observations to determine the stellar and spacecraft positions.