Elfriede
618 Elfriede (A906 UM)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 131.292 km
- Rotation period
- 14.791 hours
- Albedo
- 0.05
- Absolute magnitude H
- 8.54 mag
- Spectral type (Tholen)
- C
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 3.19 AU
- Eccentricity
- 0.0682
- Inclination
- 17.1°
- Perihelion distance
- 2.97 AU
- Aphelion distance
- 3.41 AU
- Orbital period
- 2,080 days
- Perihelion passage
- JD 2460954.845
- Earth MOID
- 1.99 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 131 km across — 32.8% of the 400 km Seoul–Busan expressway.
- One orbit takes about 2,080 Earth days (about 5.7 years).
- Sunlight needs about 27 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.