| Asteroid Number | 4660 | | Asteroid Group | Apollo Group | | Asteroid Family | Not applicable | | Composition Class | Xe-type (achondritic) | | Orbital Period | 1 year, 298 days | | Distance from the Sun | Semi-Major Axis: 222,156,300 km (1.49 AU)
Perihelion: 142,452,100 km (0.95 AU)
Aphelion: 301,860,500 km (2.02 AU) | | Eccentricity | 0.3588 | | Diameter (Mean) | 0.3 km | | Notes | A small but highly reflective asteroid of the inner Solar System, with an approximately ovoid shape. Nereus measures just 510 metres along its longest axis, and its axis of rotation is close to that long axis, around which it rotates over a period of a little over fifteen hours. |
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