Key Facts


47932 (2000 GN171) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2000 GN171 as potentially hazardous because its orbit does not bring it close to Earth.

2000 GN171 orbits the sun every 90,700 days (248.32 years), coming as close as 28.32 AU and reaching as far as 50.70 AU from the sun. Based on its brightness and the way it reflects light, 2000 GN171 is probably between 152.952 to 342.011 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Maryland.

The rotation of 2000 GN171 has been observed. It completes a rotation on its axis every 8.33 hours.

No Close Approaches

2000 GN171's orbit is 27.30 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

2000 GN171's orbit is determined by observations dating back to April 7, 1989. It was last officially observed on Feb. 4, 2019. The IAU Minor Planet Center records 291 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 2000 GN171:



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Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 39.51 AU
  • Eccentricity: 0.2831
  • Inclination: 10.82°
  • Longitude of Ascending Node: 26.17°
  • Argument of Periapsis: 195.88°
  • Mean Anomaly: 16.18°

Physical Characteristics

  • Diameter: ~197.460 km
  • Magnitude: 6.2

Derived Characteristics

  • Orbit Period: 90,700 days (248.32 years)
  • Avg. Orbit Speed: 4.74 km/s
  • Aphelion Distance: 50.70 AU
  • Perihelion Distance: 28.32 AU
  • Rotation Period: 8.33 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 47932 (2000 GN171) 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.