Only four universities in China have astronomy majors, namely Peking University, Nanjing University, Beijing Normal University and China University of Science and Technology. Among them, the astronomy departments of Beijing Normal University and Nantah have the longest running time and are old brands. HKUST's major is astrophysics. Nanjing University has the best astronomy department, which should be the first in the country. Isn't there the Purple Mountain Observatory?