The first Amor asteroid to be discovered, independently by Gustav Witt and Auguste Charlois in 1898, designated (433) Eros. The asteroid orbits the Sun at a mean distance of 1.46 AU, or 218 million km (perihelion 1.13 AU, aphelion 1.78 AU), in a period of 1.76 years; inclination 11°, eccentricity 0.22. Its rotation period is 5.3 h