Key Facts

  • Categorized as a Main-belt Asteroid
  • Comparable in size to the U.S. state of Rhode Island (47.59 km diameter)
  • Not a Near Earth Object
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

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

Zambesia orbits the sun every 1,650 days (4.52 years), coming as close as 2.21 AU and reaching as far as 3.26 AU from the sun. Zambesia is about 47.6 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Rhode Island.

The rotation of Zambesia has been observed. It completes a rotation on its axis every 17.31 hours.

No Close Approaches

Zambesia's orbit is 1.24 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

Zambesia's orbit is determined by observations dating back to Feb. 2, 1908. It was last officially observed on June 24, 2023. The IAU Minor Planet Center records 3,941 observations used to determine its orbit.

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 Zambesia:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.735 AU
  • Eccentricity: 0.1908
  • Inclination: 10.14°
  • Longitude of Ascending Node: 349.72°
  • Argument of Periapsis: 54.16°
  • Mean Anomaly: 257.22°

Physical Characteristics

  • Diameter: 47.59400 km
  • Magnitude: 10.38
  • Albedo: 0.058

Derived Characteristics

  • Orbit Period: 1,650 days (4.52 years)
  • Avg. Orbit Speed: 18.03 km/s
  • Aphelion Distance: 3.26 AU
  • Perihelion Distance: 2.21 AU
  • Rotation Period: 17.31 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Zambesia 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.