Key Facts

  • Categorized as a Jupiter Trojan
  • Comparable in size to the U.S. state of Rhode Island (59.57 km diameter)
  • Not a Near Earth Object
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

6090 (1989 DJ) is a large asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 1989 DJ as potentially hazardous because its orbit does not bring it close to Earth.

1989 DJ orbits the sun every 4,460 days (12.21 years), coming as close as 4.99 AU and reaching as far as 5.61 AU from the sun. 1989 DJ is about 59.6 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Rhode Island.

The rotation of 1989 DJ has been observed. It completes a rotation on its axis every 18.48 hours.

No Close Approaches

1989 DJ's orbit is 4.06 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

1989 DJ's orbit is determined by observations dating back to March 28, 1954. It was last officially observed on Aug. 9, 2021. The IAU Minor Planet Center records 2,103 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 1989 DJ:

References

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Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 5.302 AU
  • Eccentricity: 0.0584
  • Inclination: 20.2°
  • Longitude of Ascending Node: 328.47°
  • Argument of Periapsis: 74.12°
  • Mean Anomaly: 332.68°

Physical Characteristics

  • Diameter: 59.56800 km
  • Magnitude: 9.58
  • Albedo: 0.087

Derived Characteristics

  • Orbit Period: 4,460 days (12.21 years)
  • Avg. Orbit Speed: 12.93 km/s
  • Aphelion Distance: 5.61 AU
  • Perihelion Distance: 4.99 AU
  • Rotation Period: 18.48 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 6090 (1989 DJ) 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.