Asteroid
Near-Earth
Zao
5751 Zao (1992 AC)
Where is it now
- Distance from Sun
- 2.707 AU
- True anomaly
- 148.86°
- 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
- 2.102 AU
- Eccentricity
- 0.4253
- Inclination
- 16.07°
- Orbital period
- 3.05 years
- Perihelion
- 1.208 AU
- Aphelion
- 2.996 AU
- Longitude of ascending node
- 121.63°
- Argument of periapsis
- 25.46°
- Epoch · J2000
- 2461200.5
Physical properties
- Mean radius
- 1.15 km
- Rotation period
- 3.17 days
Visual & observation
- Geometric albedo
- 0.36
- Absolute magnitude (H)
- 14.94
- Spectral type
- AMO
Discovery & classification
Near-Earth Object
Named