Key Facts

Overview

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

Chromios orbits the sun every 4,390 days (12.02 years), coming as close as 5.19 AU and reaching as far as 5.30 AU from the sun. Based on its brightness and the way it reflects light, Chromios is probably between 9.259 to 20.703 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the city of Cleveland, Ohio.

No Close Approaches

Chromios's orbit is 4.21 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

Chromios's orbit is determined by observations dating back to Nov. 24, 1954. It was last officially observed on Sept. 27, 2022. The IAU Minor Planet Center records 1,096 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 Chromios:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 5.246 AU
  • Eccentricity: 0.0098
  • Inclination: 5.12°
  • Longitude of Ascending Node: 76.75°
  • Argument of Periapsis: 28.54°
  • Mean Anomaly: 232.89°

Physical Characteristics

  • Diameter: ~11.953 km
  • Magnitude: 12.29

Derived Characteristics

  • Orbit Period: 4,390 days (12.02 years)
  • Avg. Orbit Speed: 13.00 km/s
  • Aphelion Distance: 5.30 AU
  • Perihelion Distance: 5.19 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of Chromios 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.