Key Facts

  • Categorized as a Main-belt Asteroid
  • Comparable in size to the U.S. state of Connecticut (124.92 km diameter)
  • Not a Near Earth Object
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

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

Josephina orbits the sun every 2,020 days (5.53 years), coming as close as 2.95 AU and reaching as far as 3.30 AU from the sun. Josephina is about 124.9 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Connecticut.

The rotation of Josephina has been observed. It completes a rotation on its axis every 12.50 hours.

No Close Approaches

Josephina's orbit is 1.96 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

Josephina's orbit is determined by observations dating back to March 12, 1891. It was last officially observed on May 15, 2023. The IAU Minor Planet Center records 11,004 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 Josephina:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.123 AU
  • Eccentricity: 0.0565
  • Inclination: 6.89°
  • Longitude of Ascending Node: 343.65°
  • Argument of Periapsis: 67.64°
  • Mean Anomaly: 97.93°

Physical Characteristics

  • Diameter: 124.92300 km
  • Magnitude: 9.13
  • Albedo: 0.034

Derived Characteristics

  • Orbit Period: 2,020 days (5.53 years)
  • Avg. Orbit Speed: 16.82 km/s
  • Aphelion Distance: 3.30 AU
  • Perihelion Distance: 2.95 AU
  • Rotation Period: 12.50 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Josephina 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.