Key Facts

Overview

Eger is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified Eger as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

Eger orbits the sun every 608 days (1.66 years), coming as close as 0.91 AU and reaching as far as 1.90 AU from the sun. Eger is about 1.5 kilometers in diameter, making it larger than most asteroids, comparable in size to the U.S. Pentagon.

The rotation of Eger has been observed. It completes a rotation on its axis every 5.71 days.

Eger's spectral type (Tholen) / Xe (SMASSII) indicates that it is likely to contain nickel, iron, and cobalt.

No Close Approaches

Eger's orbit is 0.08 AU from Earth's orbit at its closest point. This means that there is an 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

Eger's orbit is determined by observations dating back to Jan. 21, 1982. It was last officially observed on Sept. 18, 2019. The IAU Minor Planet Center records 3,304 observations used to determine its orbit.

Scientists have been able to determine this object's shape.

View asteroid Eger in 3D.

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 Eger:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.40418528247 AU
  • Eccentricity: 0.354235454421
  • Inclination: 20.9291127126°
  • Longitude of Ascending Node: 129.762372409°
  • Argument of Periapsis: 254.068624361°
  • Mean Anomaly: 199.373831866°

Physical Characteristics

  • Diameter: 1.50000 km
  • Magnitude: 15.38
  • Albedo: 0.64
  • Spectral type (SMASS): Xe

Derived Characteristics

  • Orbit Period: 608 days (1.66 years)
  • Avg. Orbit Speed: 25.14 km/s
  • Aphelion Distance: 1.90 AU
  • Perihelion Distance: 0.91 AU
  • Rotation Period: 5.71 days
  • Approx. Composition: nickel, iron, and cobalt.

Size Comparison

Orbit Simulation

Sky Map

The position of Eger 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.