Annefrank
5535 Annefrank (1942 EM)
🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 4.8 km
- Rotation period
- 15.12 hours
- Albedo
- 0.311
- Absolute magnitude H
- 13.86 mag
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.21 AU
- Eccentricity
- 0.0632
- Inclination
- 4.25°
- Perihelion distance
- 2.07 AU
- Aphelion distance
- 2.35 AU
- Orbital period
- 1,200 days
- Perihelion passage
- JD 2461531.429
- Earth MOID
- 1.09 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 5 km across — 1.2% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,200 Earth days (about 3.3 years).
- Sunlight needs about 18 minutes to reach it on average (semi-major axis 2.2 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.