Key Facts


Numidia is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Numidia as potentially hazardous because its orbit does not bring it close to Earth.

Numidia orbits the sun every 1,460 days (4.00 years), coming as close as 2.37 AU and reaching as far as 2.68 AU from the sun. Numidia is about 19.6 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Denver.

The rotation of Numidia has been observed. It completes a rotation on its axis every 3.64 hours.

No Close Approaches

Numidia's orbit is 1.41 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

Numidia's orbit is determined by observations dating back to May 20, 1931. It was last officially observed on Aug. 4, 2021. The IAU Minor Planet Center records 3,154 observations used to determine its orbit.

Scientists have been able to determine this object's shape.

View asteroid Numidia in 3D.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of Numidia:



   or view a random object

Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 2.524 AU
  • Eccentricity: 0.0623
  • Inclination: 14.82°
  • Longitude of Ascending Node: 18.06°
  • Argument of Periapsis: 263.4°
  • Mean Anomaly: 130.18°

Physical Characteristics

  • Diameter: 19.59100 km
  • Magnitude: 10.95
  • Albedo: 0.298

Derived Characteristics

  • Orbit Period: 1,460 days (4.00 years)
  • Avg. Orbit Speed: 18.81 km/s
  • Aphelion Distance: 2.68 AU
  • Perihelion Distance: 2.37 AU
  • Rotation Period: 3.64 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Numidia is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.