Key Facts

Overview

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

Tydeus orbits the sun every 4,290 days (11.75 years), coming as close as 4.72 AU and reaching as far as 5.61 AU from the sun. Based on its brightness and the way it reflects light, Tydeus is probably between 11.818 to 26.427 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the city of Baltimore.

No Close Approaches

Tydeus's orbit is 3.75 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

Tydeus's orbit is determined by observations dating back to Sept. 20, 1973. It was last officially observed on April 1, 2023. The IAU Minor Planet Center records 1,644 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 Tydeus:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 5.165 AU
  • Eccentricity: 0.0856
  • Inclination: 9.99°
  • Longitude of Ascending Node: 314.82°
  • Argument of Periapsis: 92.2°
  • Mean Anomaly: 41.27°

Physical Characteristics

  • Diameter: ~15.257 km
  • Magnitude: 11.76

Derived Characteristics

  • Orbit Period: 4,290 days (11.75 years)
  • Avg. Orbit Speed: 13.10 km/s
  • Aphelion Distance: 5.61 AU
  • Perihelion Distance: 4.72 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of Tydeus 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.