Key Facts

Overview

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

Werdandi orbits the sun every 2,020 days (5.53 years), coming as close as 2.70 AU and reaching as far as 3.55 AU from the sun. Werdandi is about 29.7 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of Werdandi has been observed. It completes a rotation on its axis every 11.78 hours.

No Close Approaches

Werdandi's orbit is 1.71 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

Werdandi's orbit is determined by observations dating back to Nov. 11, 1906. It was last officially observed on May 15, 2023. The IAU Minor Planet Center records 5,936 observations used to determine its orbit.

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

View asteroid Werdandi 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 Werdandi:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.125 AU
  • Eccentricity: 0.1364
  • Inclination: 2.3°
  • Longitude of Ascending Node: 66.64°
  • Argument of Periapsis: 36.78°
  • Mean Anomaly: 38.1°

Physical Characteristics

  • Diameter: 29.72600 km
  • Magnitude: 11.19
  • Albedo: 0.127
  • Spectral type (Tholen): FCX:

Derived Characteristics

  • Orbit Period: 2,020 days (5.53 years)
  • Avg. Orbit Speed: 16.83 km/s
  • Aphelion Distance: 3.55 AU
  • Perihelion Distance: 2.70 AU
  • Rotation Period: 11.78 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Werdandi 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.