Asteroid
Near-Earth
Amun
3554 Amun (1986 EB)
Where is it now
- Distance from Sun
- 1.231 AU
- True anomaly
- 194.68°
- As of
- 29 August 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
Orbital elements
- Semi-major axis
- 0.974 AU
- Eccentricity
- 0.2805
- Inclination
- 23.36°
- Orbital period
- 351 days
- Perihelion
- 0.701 AU
- Aphelion
- 1.247 AU
- Longitude of ascending node
- 358.59°
- Argument of periapsis
- 359.42°
- Epoch · J2000
- 2461200.5
Physical properties
- Mean radius
- 1.67 km
- Rotation period
- 2.53 hours
Visual & observation
- Geometric albedo
- 0.074
- Absolute magnitude (H)
- 15.91
- Spectral type
- ATE
Discovery & classification
Near-Earth Object
Named