Key Facts

  • Categorized as a Jupiter Trojan
  • Comparable in size to the city of Indianapolis (26.21 km diameter)
  • Not a Near Earth Object
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

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

Eurysaces orbits the sun every 4,460 days (12.21 years), coming as close as 5.06 AU and reaching as far as 5.55 AU from the sun. Eurysaces is about 26.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

No Close Approaches

Eurysaces's orbit is 4.04 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

Eurysaces's orbit is determined by observations dating back to Sept. 24, 1960. It was last officially observed on Jan. 4, 2020. The IAU Minor Planet Center records 1,661 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 Eurysaces:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 5.303 AU
  • Eccentricity: 0.0465
  • Inclination: 0.95°
  • Longitude of Ascending Node: 208.1°
  • Argument of Periapsis: 114.61°
  • Mean Anomaly: 46.68°

Physical Characteristics

  • Diameter: 26.21000 km
  • Magnitude: 11.1
  • Albedo: 0.076

Derived Characteristics

  • Orbit Period: 4,460 days (12.21 years)
  • Avg. Orbit Speed: 12.94 km/s
  • Aphelion Distance: 5.55 AU
  • Perihelion Distance: 5.06 AU

Size Comparison

Orbit Simulation

Sky Map

The position of Eurysaces 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.