Key Facts


15883 (1997 CR29) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 1997 CR29 as potentially hazardous because its orbit does not bring it close to Earth.

1997 CR29 orbits the sun every 117,000 days (320.33 years), coming as close as 36.78 AU and reaching as far as 56.98 AU from the sun. Based on its brightness and the way it reflects light, 1997 CR29 is probably between 99.668 to 222.864 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Connecticut.

No Close Approaches

1997 CR29's orbit is 35.80 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

1997 CR29's orbit is determined by observations dating back to Feb. 3, 1997. It was last officially observed on March 16, 2018. The IAU Minor Planet Center records 34 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 1997 CR29:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 46.88 AU
  • Eccentricity: 0.2155
  • Inclination: 19.16°
  • Longitude of Ascending Node: 127.21°
  • Argument of Periapsis: 299.76°
  • Mean Anomaly: 76.9°

Physical Characteristics

  • Diameter: ~128.671 km
  • Magnitude: 7.13

Derived Characteristics

  • Orbit Period: 117,000 days (320.33 years)
  • Avg. Orbit Speed: 4.36 km/s
  • Aphelion Distance: 56.98 AU
  • Perihelion Distance: 36.78 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 15883 (1997 CR29) 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.