Asteroid
Near-Earth
Cleobulus
4503 Cleobulus (1989 WM)
Where is it now
- Distance from Sun
- 3.13 AU
- True anomaly
- 135.45°
- 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
- 2.704 AU
- Eccentricity
- 0.5247
- Inclination
- 2.51°
- Orbital period
- 4.45 years
- Perihelion
- 1.285 AU
- Aphelion
- 4.123 AU
- Longitude of ascending node
- 45.94°
- Argument of periapsis
- 76.25°
- Epoch · J2000
- 2461200.5
Physical properties
- Rotation period
- 2.82 hours
Visual & observation
- Absolute magnitude (H)
- 15.82
- Spectral type
- AMO
Discovery & classification
Near-Earth Object
Named