Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to the San Francisco Bay (5.70 km diameter)
  • Will pass within 13,413,891 km of Earth in 2030
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation


Cuyo is a mid-sized asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified Cuyo 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.

Cuyo orbits the sun every 1,150 days (3.15 years), coming as close as 1.06 AU and reaching as far as 3.24 AU from the sun. Cuyo is about 5.7 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

The rotation of Cuyo has been observed. It completes a rotation on its axis every 2.69 hours.

Cuyo's spectral type None (Tholen) / Sl (SMASSII) indicates that it is likely to contain and .

Close Approaches

Cuyo's orbit is 0.07 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

Cuyo has 4 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Oct. 6, 2030 13,413,891 14.447
Oct. 7, 2071 15,616,650 14.417
Sept. 24, 2131 28,311,299 16.405
Oct. 2, 2172 10,912,357 14.753

Images and Observations

Cuyo's orbit is determined by observations dating back to May 6, 1954. It was last officially observed on June 25, 2023. The IAU Minor Planet Center records 3,269 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 Cuyo:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.15 AU
  • Eccentricity: 0.5057
  • Inclination: 23.96°
  • Longitude of Ascending Node: 188.28°
  • Argument of Periapsis: 194.55°
  • Mean Anomaly: 269.82°

Physical Characteristics

  • Diameter: 5.70000 km
  • Magnitude: 14.4
  • Albedo: 0.195
  • Spectral type (SMASS): Sl

Derived Characteristics

  • Orbit Period: 1,150 days (3.15 years)
  • Avg. Orbit Speed: 20.34 km/s
  • Aphelion Distance: 3.24 AU
  • Perihelion Distance: 1.06 AU
  • Rotation Period: 2.69 hours
  • Approx. Composition: and .

Map Comparison

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Orbit Simulation

Sky Map

The position of Cuyo 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.

Size Rendering

The above comparison is an artistic rendering that uses available data on the diameter of Cuyo to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.