Key Facts

Overview

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

Priscilla orbits the sun every 2,080 days (5.69 years), coming as close as 3.04 AU and reaching as far as 3.33 AU from the sun. Priscilla is about 35.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Los Angeles.

The rotation of Priscilla has been observed. It completes a rotation on its axis every 7.85 hours.

No Close Approaches

Priscilla's orbit is 2.06 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

Priscilla's orbit is determined by observations dating back to Feb. 9, 1905. It was last officially observed on April 2, 2023. The IAU Minor Planet Center records 3,935 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 Priscilla:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.186 AU
  • Eccentricity: 0.0466
  • Inclination: 11.65°
  • Longitude of Ascending Node: 319.62°
  • Argument of Periapsis: 143.69°
  • Mean Anomaly: 0.53°

Physical Characteristics

  • Diameter: 34.95700 km
  • Magnitude: 11.22
  • Albedo: 0.048

Derived Characteristics

  • Orbit Period: 2,080 days (5.69 years)
  • Avg. Orbit Speed: 16.66 km/s
  • Aphelion Distance: 3.33 AU
  • Perihelion Distance: 3.04 AU
  • Rotation Period: 7.85 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Priscilla 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.