Variable stars in globular clusters

To obtain time-series photometry of the very crowded central regions of Galactic globular clusters. To obtain better angular resolution than has been previously achieved with...

为获取银河系球状星团（Galactic globular clusters）核心极端密集区域的时序测光（time-series photometry）数据，并获得优于此前已实现的角分辨率（angular resolution）。