Key Facts


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

Rezia orbits the sun every 2,290 days (6.27 years), coming as close as 3.32 AU and reaching as far as 3.47 AU from the sun. Rezia is about 92.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Delaware.

The rotation of Rezia has been observed. It completes a rotation on its axis every 7.34 hours.

No Close Approaches

Rezia's orbit is 2.33 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

Rezia's orbit is determined by observations dating back to March 20, 1904. It was last officially observed on Jan. 17, 2021. The IAU Minor Planet Center records 2,893 observations used to determine its orbit.

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

View asteroid Rezia 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 Rezia:



   or view a random object

Orbital Elements

  • Epoch: 2459200.5 JD
  • Semi-major axis: 3.395 AU
  • Eccentricity: 0.0214
  • Inclination: 12.71°
  • Longitude of Ascending Node: 49.54°
  • Argument of Periapsis: 349.91°
  • Mean Anomaly: 17.34°

Physical Characteristics

  • Diameter: 91.96600 km
  • Magnitude: 9.0
  • Albedo: 0.046

Derived Characteristics

  • Orbit Period: 2,290 days (6.27 years)
  • Avg. Orbit Speed: 16.13 km/s
  • Aphelion Distance: 3.47 AU
  • Perihelion Distance: 3.32 AU
  • Rotation Period: 7.34 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Rezia 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.