Siegena
386 Siegena (A894 EB)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 165.01 km
- Rotation period
- 9.763 hours
- Albedo
- 0.0692
- Absolute magnitude H
- 7.74 mag
- Spectral type (Tholen)
- C
- Spectral type (SMASS)
- C
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.9 AU
- Eccentricity
- 0.17
- Inclination
- 20.2°
- Perihelion distance
- 2.41 AU
- Aphelion distance
- 3.39 AU
- Orbital period
- 1,800 days
- Perihelion passage
- JD 2460879.371
- Earth MOID
- 1.44 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 165 km across — 41.3% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,800 Earth days (about 4.9 years).
- Sunlight needs about 24 minutes to reach it on average (semi-major axis 2.9 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.