1964 VQ1. Discovered 1964 Nov. 9 at the Purple Mountain Observatory at Nanking.
Named for Yi Xing or I Hsing (683–727), also known as Zhang Sui. This famous Chinese astronomer of the Tang dynasty constructed a bronze armillary sphere for measuring stellar altitudes, and he conducted a large-scale latitude-measurement project in many places across China. He also reformed the Chinese calendrical system. (M 4420)