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Ceres: Facts & Figures
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Discovered By
Giuseppe Piazzi
Date of Discovery
1 Jan. 1801
Orbit Size Around Sun (semi-major axis)
Metric: 413,690,250 km
English: 257,055,204 miles
Scientific Notation: 4.1369025 x 108 km (2.7653485 x 100 A.U.)
By Comparison: Earth is 1 A.U. from the Sun
Perihelion (closest)
Metric: 380,951,528 km
English: 236,712,305 miles
Scientific Notation: 3.80952 x 108 km (2.547 x 100 A.U.)
Aphelion (farthest)
Metric: 446,428,973 km
English: 277,398,103 miles
Scientific Notation: 4.46429 x 108 km (2.984 x 100 A.U.)
Orbit Period (Length of Year)
4.60 Earth years
Orbit Circumference
Metric: 2,595,217,959 km
English: 1,612,593,677 miles
Scientific Notation: 2.595 x 109 km
By Comparison: 2.761
Average Orbit Velocity
Metric: 64,360 km/h
English: 39,991 mph
Scientific Notation: 1.7878 x 104 m/s
By Comparison: 0.600
Orbit Eccentricity
0.079138251
Orbit Inclination
10.59
Mean Radius
Metric: 476.2 km
English: 295.9 miles
Scientific Notation: 4.7620 x 102 km
By Comparison: 487.3 x 454.7 km oblate spheroid
Equatorial Circumference
Metric: 2,992.1 km
English: 1,859.2 miles
Scientific Notation: 2.99205 x 103 km
By Comparison: 0.0747
Volume
Metric: 452,331,448 km3
English: 108,520,085 mi3
Scientific Notation: 4.52331 x 108 km3
Mass
Metric: 947,000,000,000,000,000,000 kg
Scientific Notation: 9.47 x 1020 kg
Density
Metric: 2.09 g/cm3
Surface Area
Metric: 2,849,631 km2
English: 1,100,249 square miles
Scientific Notation: 2.8496 x 106 km2
Surface Gravity
Metric: 0.28 m/s2
Escape Velocity
Metric: 1,855 km/h
Sidereal Rotation Period (Length of Day)
0.378 Earth days
9.07417 hours
By Comparison: 0.38
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Last Updated: 2 Apr 2014