Adjective(s) Unknown
Orbital properties
Aphelion/apoapsis 446 669 320 km (about 2,9858 AU )
Perihelion/periapsis 380 995 855 km (about 2,5468 AU)
Semi-major axis 413 690 604 km (about 2,7654 AU)
Orbital eccentricity 0.079138
Orbital period 4,60 years (1679,67 days)
Average orbital speed 17,882 km/s
Physical properties
Radius 487,3 km (equatorial); 454,7 (polar) (oblate)
Mass 9,43 x 10^20 kg (0,00015 earth masses)
Mean density 2,077 g/cm³
Escape velocity 0,51 km/s
Rotation period 0,3781 days (9,07417 hours)
Average surface temperature 171,51 degrees Kelvin ( -101,64 °C)
Apparent magnitude 6,64 (maximum), 9,34 (maximum)
Moons 0

Ceres is an asteroid in the asteroid belt. Because it is spherical, it is also considered a Dwarf Planet, making it the only Dwarf Planet in the asteroid belt, and the smallest Planet. Ceres is oblate.


Ceres was discovered by Giuseppe Piazzi on January 1st, 1801. It was the first asteroid found in the asteroid belt. Ceres was originally considered a planet, but it was later classified as a Dwarf Planet in 2006. The Dawn space probe, which has already visited the asteroid Vesta and reached Ceres in Apr 2015.


  • Ceres contains 1/3 of the mass of the asteroid belt.
  • It is tilted 3° on its axis.
  • Ceres is made of a mixture of water ice and various hydrated minerals such as carbonates and clays.
  • Ceres is the smallest dwarf planet.
  • Ceres has a surface area slightly larger than Argentina
  • One Cererian day is 9 earth hours long.
  • One Cererian year is 4.6 earth years long.
  • Ceres has no known moons.
  • Ceres has more fresh water than Earth.
  • You can't see Ceres with the naked eye.
  • Ceres is round like planets.


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