Sternwarte am purpurnen Berg
2903 Zhuhai, provisional designation , is a stony background or Marian asteroid from the central regions of the asteroid belt, approximately in diameter. It was discovered on 23 October 1981, by astronomers at Purple Mountain Observatory near Nanking, China. The S-type asteroid has a rotation period of 5.26 hours. It was named for the Chinese city of Zhuhai.