The new campus of Nanjing University Xianlin Internationalization is located in the southwest of Baixiang District, Xianlin New City, Nanjing, east of Jiuxiang River. Campus construction is carried out in accordance with the principle of "one-time planning and step-by-step implementation". The planned land area is 49 10 mu, the total construction scale is about10.2 million square meters, the land acquisition in advance is about 3,800 mu, and the built-up area is 2,828 mu (in 2009). Jiangnan has hilly terrain, beautiful scenery and undulating terrain. The landmark buildings on campus include Duxia Library, Wen Jing Student Activity Center, Fangzhaozhou Gymnasium and Zuodijiang Observatory. Campus construction has received a large number of social donations, and almost every building and every construction project has the assistance of alumni and the government. Xianlin Campus was put into use in September 2009, and 20 12 became the main campus of Nanjing University. In 20 12, the International Committee on Asteroid Nomenclature approved the asteroid with the international number 187707 to be officially named "Nanda Xianlin Star".