Bertholda
420 Bertholda (A896 RC)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 138.699 km
- Rotation period
- 10.987 hours
- Albedo
- 0.044
- Absolute magnitude H
- 8.31 mag
- Spectral type (Tholen)
- P
Orbit
- Orbit class (JPL)
- OMB — Outer Main-belt Asteroid
- Semi-major axis
- 3.42 AU
- Eccentricity
- 0.0205
- Inclination
- 6.71°
- Perihelion distance
- 3.35 AU
- Aphelion distance
- 3.49 AU
- Orbital period
- 2,310 days
- Perihelion passage
- JD 2460712.165
- Earth MOID
- 2.37 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 139 km across — 34.7% of the 400 km Seoul–Busan expressway.
- One orbit takes about 2,310 Earth days (about 6.3 years).
- Sunlight needs about 28 minutes to reach it on average (semi-major axis 3.4 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.