Lutetia
21 Lutetia (A852 VA)
🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 98 km
- Rotation period
- 8.1655 hours
- Albedo
- 0.19
- Absolute magnitude H
- 7.48 mag
- Spectral type (Tholen)
- M
- Spectral type (SMASS)
- Xk
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.43 AU
- Eccentricity
- 0.165
- Inclination
- 3.06°
- Perihelion distance
- 2.03 AU
- Aphelion distance
- 2.84 AU
- Orbital period
- 1,390 days
- Perihelion passage
- JD 2461436.460
- Earth MOID
- 1.02 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 98 km across — 24.5% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,390 Earth days (about 3.8 years).
- Sunlight needs about 20 minutes to reach it on average (semi-major axis 2.4 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.