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Nereus

4660 · A long-favoured low-energy mission target.
Potentially hazardousApollo~330 m
Current distance from Earth
156,205,914 km
406.4 lunar distances · 1.044 AU
Heliocentric orbit · live
EarthNereus top-down view of the ecliptic plane
Next close approach
2060-Feb-14
Passes 3.1 lunar distances from Earth — about 1,198,035 km, closing at 6.3 km/s.
Orbit class
Apollo
around the Sun
Orbital period
1.82 yr
664 days
Diameter
330 m
comparable to the Eiffel Tower’s height
Eccentricity
0.359
orbit shape
Inclination
1.4°
to the ecliptic
Discovered
1982
Frequently asked questions
How close does Nereus come to Earth?
Its next notable close approach is on 2060-Feb-14, when it passes about 3.1 lunar distances from Earth — roughly 1,198,035 km. Nereus is currently about 406 lunar distances away — the live orbit and distance are shown above.
Is Nereus going to hit Earth?
No impact is predicted. Nereus is classified as a potentially hazardous asteroid, which means its orbit brings it relatively close to Earth — but classification is about proximity, not an impending collision. Its trajectory is continuously refined as new observations are gathered, and predicted close approaches are calculated decades ahead. Its live position and orbit are shown above.
How big is Nereus?
Nereus is estimated at about 330 m across — comparable to the Eiffel Tower’s height. Size estimates are derived from how bright the asteroid appears and refined by radar and thermal measurements when it passes close to Earth.
What kind of orbit does Nereus have?
Nereus is Apollo (Earth-crossing) object. It orbits the Sun once every 1.82 years, on an elliptical path that reaches beyond Earth’s orbit and swings back toward the Sun. The interactive orbit diagram above shows where it is right now.
Can I see Nereus through a telescope?
Most of the time Nereus is far too faint to see, but during a close approach it can brighten enough for amateur telescopes, and the largest near-Earth asteroids occasionally reach binocular range. Check the close-approach date above, then plan your night with our sky and space-weather tools.
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