Bettina
250 Bettina (A885 RA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 120.995 km
- Rotation period
- 5.0545 hours
- Albedo
- 0.112
- Absolute magnitude H
- 7.68 mag
- Spectral type (Tholen)
- M
- Spectral type (SMASS)
- Xk
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 3.14 AU
- Eccentricity
- 0.137
- Inclination
- 12.8°
- Perihelion distance
- 2.71 AU
- Aphelion distance
- 3.57 AU
- Orbital period
- 2,030 days
- Perihelion passage
- JD 2461347.392
- Earth MOID
- 1.76 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 121 km across — 30.2% of the 400 km Seoul–Busan expressway.
- One orbit takes about 2,030 Earth days (about 5.6 years).
- Sunlight needs about 26 minutes to reach it on average (semi-major axis 3.1 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.