The image was taken from inside the dome of the telescope and reveals nicely how the laser is located on top of the 1.2-metre secondary mirror of the telescope.

本图摄于天文台的圆顶内部，很好的显示了激光是如何定位在1.2米辅助望远镜的上空的。

youdao

The image was taken from inside the dome of the telescope and reveals nicely how the laser is located on top of the 1.2-metre secondary mirror of the telescope.

本图摄于天文台的圆顶内部，很好的显示了激光是如何定位在1.2米辅助望远镜的上空的。

youdao