Euphrosyne
31 Euphrosyne (A854 RA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 267.08 km
- Rotation period
- 5.53 hours
- Albedo
- 0.053
- Absolute magnitude H
- 6.83 mag
- Spectral type (Tholen)
- C
- Spectral type (SMASS)
- Cb
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 3.16 AU
- Eccentricity
- 0.216
- Inclination
- 26.3°
- Perihelion distance
- 2.48 AU
- Aphelion distance
- 3.84 AU
- Orbital period
- 2,050 days
- Perihelion passage
- JD 2462210.684
- Earth MOID
- 1.59 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 267 km across — 66.8% of the 400 km Seoul–Busan expressway.
- One orbit takes about 2,050 Earth days (about 5.6 years).
- Sunlight needs about 26 minutes to reach it on average (semi-major axis 3.2 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.