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Ceres

Facts & Figures

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

NASA Official: Kristen Erickson

Advisory: Dr. James Green, Director of Planetary Science

Outreach Manager: Alice Wessen