Key Facts

Overview

129145 (2005 CE) is a mid-sized asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 2005 CE as potentially hazardous because its orbit does not bring it close to Earth.

2005 CE orbits the sun every 4,430 days (12.13 years), coming as close as 5.02 AU and reaching as far as 5.53 AU from the sun. Based on its brightness and the way it reflects light, 2005 CE is probably between 7.491 to 16.751 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.

No Close Approaches

2005 CE's orbit is 4.02 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

2005 CE's orbit is determined by observations dating back to March 24, 1971. It was last officially observed on June 20, 2023. The IAU Minor Planet Center records 735 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 2005 CE:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 5.277 AU
  • Eccentricity: 0.0488
  • Inclination: 18.41°
  • Longitude of Ascending Node: 172.63°
  • Argument of Periapsis: 359.33°
  • Mean Anomaly: 168.86°

Physical Characteristics

  • Diameter: ~9.671 km
  • Magnitude: 12.75

Derived Characteristics

  • Orbit Period: 4,430 days (12.13 years)
  • Avg. Orbit Speed: 12.96 km/s
  • Aphelion Distance: 5.53 AU
  • Perihelion Distance: 5.02 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 129145 (2005 CE) 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.