Ceres
1 Ceres (A801 AA)
🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Mean radius
- 469.7 km
- Equatorial radius
- 482.1 km
- Diameter
- 939.4 km
- Mass
- 938.416 × 10²⁴ kg
- Density
- 2.162 g/cm³
- Surface gravity
- 0.27 m/s²
- Escape velocity
- 0.51 km/s
- Rotation period
- 0.37809 days
- Orbital period
- 4.61 years
- Albedo
- 0.09
- Absolute magnitude V(1,0)
- 3.34 mag
- Absolute magnitude H
- 3.34 mag
- Spectral type (Tholen)
- G
- Spectral type (SMASS)
- C
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗NASA JPL Small-Body Database · checked 2026-11-02 ↗
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.77 AU
- Eccentricity
- 0.0797
- Inclination
- 10.6°
- Perihelion distance
- 2.55 AU
- Aphelion distance
- 2.99 AU
- Orbital period
- 1,680 days
- Perihelion passage
- JD 2461599.841
- Earth MOID
- 1.58 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- Its diameter is about 7% of Earth's (radius 470 km ÷ Earth's 6,371 km).
- One orbit takes about 1,680 Earth days (about 4.6 years).
- Sunlight needs about 23 minutes to reach it on average (semi-major axis 2.8 AU) — versus about 8 min 19 s to Earth.