Key Facts


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

Geraldina orbits the sun every 2,100 days (5.75 years), coming as close as 3.02 AU and reaching as far as 3.40 AU from the sun. Geraldina is about 67.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Rhode Island.

The rotation of Geraldina has been observed. It completes a rotation on its axis every 6.84 hours.

No Close Approaches

Geraldina's orbit is 2.02 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

Geraldina's orbit is determined by observations dating back to June 4, 1900. It was last officially observed on Feb. 3, 2023. The IAU Minor Planet Center records 4,398 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 Geraldina:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.21 AU
  • Eccentricity: 0.0594
  • Inclination: 0.73°
  • Longitude of Ascending Node: 42.88°
  • Argument of Periapsis: 320.64°
  • Mean Anomaly: 43.76°

Physical Characteristics

  • Diameter: 67.37300 km
  • Magnitude: 9.82
  • Albedo: 0.052

Derived Characteristics

  • Orbit Period: 2,100 days (5.75 years)
  • Avg. Orbit Speed: 16.63 km/s
  • Aphelion Distance: 3.40 AU
  • Perihelion Distance: 3.02 AU
  • Rotation Period: 6.84 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Geraldina 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.