Key Facts

Overview

Hooke is a large asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified Hooke as potentially hazardous because its orbit does not bring it close to Earth.

Hooke orbits the sun every 2,870 days (7.86 years), coming as close as 3.19 AU and reaching as far as 4.72 AU from the sun. Hooke is about 22.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of Hooke has been observed. It completes a rotation on its axis every 4.31 hours.

No Close Approaches

Hooke's orbit is 2.19 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

Hooke's orbit is determined by observations dating back to Oct. 16, 1971. It was last officially observed on June 22, 2023. The IAU Minor Planet Center records 2,967 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 Hooke:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.955 AU
  • Eccentricity: 0.1934
  • Inclination: 3.5°
  • Longitude of Ascending Node: 24.26°
  • Argument of Periapsis: 341.97°
  • Mean Anomaly: 248.56°

Physical Characteristics

  • Diameter: 22.03900 km
  • Magnitude: 11.88
  • Albedo: 0.084

Derived Characteristics

  • Orbit Period: 2,870 days (7.86 years)
  • Avg. Orbit Speed: 14.99 km/s
  • Aphelion Distance: 4.72 AU
  • Perihelion Distance: 3.19 AU
  • Rotation Period: 4.31 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Hooke 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.