Key Facts

Overview

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

Darius orbits the sun every 1,740 days (4.76 years), coming as close as 2.82 AU and reaching as far as 2.85 AU from the sun. Darius is about 8.3 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

The rotation of Darius has been observed. It completes a rotation on its axis every 6.24 hours.

No Close Approaches

Darius's orbit is 1.81 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

Darius's orbit is determined by observations dating back to Aug. 25, 1955. It was last officially observed on Dec. 26, 2022. The IAU Minor Planet Center records 3,454 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 Darius:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.836 AU
  • Eccentricity: 0.004
  • Inclination: 3.01°
  • Longitude of Ascending Node: 124.42°
  • Argument of Periapsis: 80.41°
  • Mean Anomaly: 221.15°

Physical Characteristics

  • Diameter: 8.25000 km
  • Magnitude: 12.91
  • Albedo: 0.237

Derived Characteristics

  • Orbit Period: 1,740 days (4.76 years)
  • Avg. Orbit Speed: 17.73 km/s
  • Aphelion Distance: 2.85 AU
  • Perihelion Distance: 2.82 AU
  • Rotation Period: 6.24 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Darius 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.