Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Pentagon (1.20 km diameter)
  • Will pass within 25,570,814 km of Earth in 2044
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation


Cerberus is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified Cerberus as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

Cerberus orbits the sun every 410 days (1.12 years), coming as close as 0.58 AU and reaching as far as 1.58 AU from the sun. Cerberus is about 1.2 kilometers in diameter, making it larger than most asteroids, comparable in size to the U.S. Pentagon.

The rotation of Cerberus has been observed. It completes a rotation on its axis every 6.80 days.

Cerberus's spectral type S (Tholen) / S (SMASSII) indicates that it is likely to contain magnesium silicate and iron silicate.

Close Approaches

Cerberus's orbit is 0.16 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

Cerberus has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Nov. 25, 2044 25,570,814 13.971
Nov. 24, 2053 24,606,122 16.876
Nov. 26, 2099 25,684,740 13.994
Nov. 25, 2108 24,853,395 16.923
Nov. 27, 2154 25,279,704 14.240
Nov. 26, 2163 25,797,545 17.328

Images and Observations

Cerberus's orbit is determined by observations dating back to Oct. 26, 1971. It was last officially observed on Oct. 19, 2019. The IAU Minor Planet Center records 1,716 observations used to determine its orbit.

Scientists have been able to determine this object's shape.

View asteroid Cerberus in 3D.

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 Cerberus:



   or view a random object

Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.08004825464 AU
  • Eccentricity: 0.466865602966
  • Inclination: 16.0963096515°
  • Longitude of Ascending Node: 212.925235154°
  • Argument of Periapsis: 325.255621432°
  • Mean Anomaly: 12.0397423332°

Physical Characteristics

  • Diameter: 1.20000 km
  • Magnitude: 16.84
  • Albedo: 0.22
  • Spectral type (Tholen): S
  • Spectral type (SMASS): S

Derived Characteristics

  • Orbit Period: 410 days (1.12 years)
  • Avg. Orbit Speed: 28.66 km/s
  • Aphelion Distance: 1.58 AU
  • Perihelion Distance: 0.58 AU
  • Rotation Period: 6.80 days
  • Approx. Composition: magnesium silicate and iron silicate.

Size Comparison

Orbit Simulation

Sky Map

The position of Cerberus 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.