SOLAR SYSTEM

Ceres the ice dwarf

Ceres and Hygiea are dwarf planets in the asteroid (main) belt between Mars and Jupiter.


Ceres 4K image (pan-zoom)

Pan, zoom, or go full-screen with this megapixel image of Ceres.

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  Original image: NASA/Dawn


Ceres facts

CHARACTERISTIC VALUE
Magnitude: 8
Mass: 9.43 x 1020 kg
Radius: 470 km
Density: 2.08 gm/cm3
Distance from Sun: 413.9 million km
Rotational period: 6.39 days
Orbital period: 4.6 years
Orbital velocity: 17.9 km/sec
Eccentricity of orbit: 0.079
Tilt of axis: 3 °
Inclination of orbit: 10.59 °
Surface gravity: 0.27 m/sec2
Escape velocity: 0.51 km/sec
Albedo: 0.09
Surface temperature: -38° to -163°C
Atmosphere: none
Moons: 0


Ceres surface features

Ceres has a couple of notable craters named Haulani and Oxo, as shown below. The whitish deposits are from briny water oozing from below the surface. Ceres has a number of inactive cryovolcanoes, with Ahuna Mons being the largest.



Ceres vs. Earth ratios

Planet sizes are to relative scale.






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