Key Facts

Overview

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

Herrick orbits the sun every 2,320 days (6.35 years), coming as close as 3.00 AU and reaching as far as 3.87 AU from the sun. Herrick is about 46.9 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Rhode Island.

The rotation of Herrick has been observed. It completes a rotation on its axis every 21.33 hours.

Herrick's spectral type F (Tholen) / None (SMASSII) indicates that it is likely to contain water, iron, nickel, cobalt, nitrogen, and ammonia.

No Close Approaches

Herrick's orbit is 2.03 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

Herrick's orbit is determined by observations dating back to Oct. 9, 1929. It was last officially observed on July 3, 2023. The IAU Minor Planet Center records 4,966 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 Herrick:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.434 AU
  • Eccentricity: 0.1265
  • Inclination: 8.76°
  • Longitude of Ascending Node: 184.12°
  • Argument of Periapsis: 279.3°
  • Mean Anomaly: 225.05°

Physical Characteristics

  • Diameter: 46.92500 km
  • Magnitude: 10.71
  • Albedo: 0.043
  • Spectral type (Tholen): F

Derived Characteristics

  • Orbit Period: 2,320 days (6.35 years)
  • Avg. Orbit Speed: 16.10 km/s
  • Aphelion Distance: 3.87 AU
  • Perihelion Distance: 3.00 AU
  • Rotation Period: 21.33 hours
  • Approx. Composition: water, iron, nickel, cobalt, nitrogen, and ammonia.

Map Comparison

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Orbit Simulation

Sky Map

The position of Herrick 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.