4805 Asteropaios /ˌæstərəˈpeɪəs/ is a Jupiter trojan from the Trojan camp, approximately 53 kilometers (33 miles) in diameter. It was discovered on 13 November 1990, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California. The dark Jovian asteroid is one of the and has a rotation period of 12.4 hours. It was named after the spear-throwing hero Asteropaios, from Greek mythology.