Key Facts

Overview

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

Billramsey orbits the sun every 1,610 days (4.41 years), coming as close as 2.18 AU and reaching as far as 3.19 AU from the sun. Billramsey is about 9.9 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Boston.

The rotation of Billramsey has been observed. It completes a rotation on its axis every 27.14 hours.

No Close Approaches

Billramsey's orbit is 1.19 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

Billramsey's orbit is determined by observations dating back to April 16, 1993. It was last officially observed on March 13, 2023. The IAU Minor Planet Center records 3,670 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 Billramsey:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.687 AU
  • Eccentricity: 0.1883
  • Inclination: 12.89°
  • Longitude of Ascending Node: 159.54°
  • Argument of Periapsis: 36.21°
  • Mean Anomaly: 326.72°

Physical Characteristics

  • Diameter: 9.92500 km
  • Magnitude: 13.97
  • Albedo: 0.038

Derived Characteristics

  • Orbit Period: 1,610 days (4.41 years)
  • Avg. Orbit Speed: 18.16 km/s
  • Aphelion Distance: 3.19 AU
  • Perihelion Distance: 2.18 AU
  • Rotation Period: 27.14 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Billramsey 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.