Eunomia
15 Eunomia (A851 OA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 231.689 km
- Rotation period
- 6.083 hours
- Albedo
- 0.248
- Absolute magnitude H
- 5.42 mag
- Spectral type (Tholen)
- S
- Spectral type (SMASS)
- S
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.64 AU
- Eccentricity
- 0.188
- Inclination
- 11.8°
- Perihelion distance
- 2.15 AU
- Aphelion distance
- 3.14 AU
- Orbital period
- 1,570 days
- Perihelion passage
- JD 2460504.739
- Earth MOID
- 1.19 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 232 km across — 57.9% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,570 Earth days (about 4.3 years).
- Sunlight needs about 22 minutes to reach it on average (semi-major axis 2.6 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.