On nights with moonshine or mild cloud cover, the telescope instead uses a pair of spectrographs to obtain spectra, and therefore redshifts, of 608 objects at a time.
On nights with moonshine or mild cloud cover, the telescope instead uses a pair of spectrographs to obtain spectra, and therefore redshifts, of 608 objects at a time.
而在有月光或薄云的夜晚，望远镜则利用一对摄谱仪摄取光谱，可同时测定608个物体的红移。