Key Facts

Overview

Horne is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Horne as potentially hazardous because its orbit does not bring it close to Earth.

Horne orbits the sun every 2,040 days (5.59 years), coming as close as 2.80 AU and reaching as far as 3.49 AU from the sun. Horne is about 12.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Cleveland, Ohio.

No Close Approaches

Horne's orbit is 1.81 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

Horne's orbit is determined by observations dating back to April 16, 1993. It was last officially observed on June 24, 2023. The IAU Minor Planet Center records 2,841 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 Horne:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.145 AU
  • Eccentricity: 0.1101
  • Inclination: 4.2°
  • Longitude of Ascending Node: 236.79°
  • Argument of Periapsis: 297.05°
  • Mean Anomaly: 188.28°

Physical Characteristics

  • Diameter: 12.84300 km
  • Magnitude: 12.88
  • Albedo: 0.098

Derived Characteristics

  • Orbit Period: 2,040 days (5.59 years)
  • Avg. Orbit Speed: 16.77 km/s
  • Aphelion Distance: 3.49 AU
  • Perihelion Distance: 2.80 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of Horne 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.