Key Facts

  • Categorized as a Jupiter Trojan
  • Comparable in size to the U.S. state of Delaware (89.43 km diameter)
  • Not a Near Earth Object
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

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

Teucer orbits the sun every 4,220 days (11.55 years), coming as close as 4.66 AU and reaching as far as 5.57 AU from the sun. Teucer is about 89.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Delaware.

The rotation of Teucer has been observed. It completes a rotation on its axis every 10.15 hours.

No Close Approaches

Teucer's orbit is 3.71 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

Teucer's orbit is determined by observations dating back to Dec. 28, 1940. It was last officially observed on April 8, 2023. The IAU Minor Planet Center records 3,206 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 Teucer:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 5.111 AU
  • Eccentricity: 0.089
  • Inclination: 22.39°
  • Longitude of Ascending Node: 69.94°
  • Argument of Periapsis: 48.37°
  • Mean Anomaly: 345.62°

Physical Characteristics

  • Diameter: 89.43000 km
  • Magnitude: 8.87
  • Albedo: 0.073

Derived Characteristics

  • Orbit Period: 4,220 days (11.55 years)
  • Avg. Orbit Speed: 13.18 km/s
  • Aphelion Distance: 5.57 AU
  • Perihelion Distance: 4.66 AU
  • Rotation Period: 10.15 hours

Map Comparison

Click to load map

Orbit Simulation

Sky Map

The position of Teucer 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.