Hestia
46 Hestia (A857 QA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 131.471 km
- Rotation period
- 21.04 hours
- Albedo
- 0.046
- Absolute magnitude H
- 8.52 mag
- Spectral type (Tholen)
- P
- Spectral type (SMASS)
- Xc
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.53 AU
- Eccentricity
- 0.172
- Inclination
- 2.35°
- Perihelion distance
- 2.09 AU
- Aphelion distance
- 2.96 AU
- Orbital period
- 1,470 days
- Perihelion passage
- JD 2461245.875
- Earth MOID
- 1.09 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 131 km across — 32.9% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,470 Earth days (about 4 years).
- Sunlight needs about 21 minutes to reach it on average (semi-major axis 2.5 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.