The photoelectric astrolabe catalogue of Yunnan Observatory (YPAC) Hu Hui, Li Dongming, Li Yongsheng, Wang Rui and Li Xiaoming Astron. Astrophys. Suppl. Ser., 118 2 (1996) 239-241 Published online: 15 August 1996 DOI: 10.1051/aas:1996193