Key Facts

Overview

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

Hopi orbits the sun every 2,040 days (5.59 years), coming as close as 2.12 AU and reaching as far as 4.19 AU from the sun. Hopi is about 19.3 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Denver.

No Close Approaches

Hopi's orbit is 1.42 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

Hopi's orbit is determined by observations dating back to June 11, 1980. It was last officially observed on June 30, 2023. The IAU Minor Planet Center records 3,856 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 Hopi:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.153 AU
  • Eccentricity: 0.3287
  • Inclination: 41.43°
  • Longitude of Ascending Node: 108.82°
  • Argument of Periapsis: 263.63°
  • Mean Anomaly: 225.52°

Physical Characteristics

  • Diameter: 19.26700 km
  • Magnitude: 11.71
  • Albedo: 0.109

Derived Characteristics

  • Orbit Period: 2,040 days (5.59 years)
  • Avg. Orbit Speed: 16.81 km/s
  • Aphelion Distance: 4.19 AU
  • Perihelion Distance: 2.12 AU

Map Comparison

Click to load map

Orbit Simulation

Sky Map

The position of Hopi 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.