Kalliope
22 Kalliope (A852 WA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 167.536 km
- Rotation period
- 4.1483 hours
- Albedo
- 0.166
- Absolute magnitude H
- 6.79 mag
- Spectral type (Tholen)
- M
- Spectral type (SMASS)
- X
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.91 AU
- Eccentricity
- 0.0988
- Inclination
- 13.7°
- Perihelion distance
- 2.62 AU
- Aphelion distance
- 3.2 AU
- Orbital period
- 1,810 days
- Perihelion passage
- JD 2461249.191
- Earth MOID
- 1.63 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 168 km across — 41.9% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,810 Earth days (about 5 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.