523606 (2005 CJ)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 523606 (2005 CJ)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 5,846,491 km of Earth in 2042
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

523606 (2005 CJ) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2005 CJ as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2005 CJ orbits the sun every 845 days (2.31 years), coming as close as 0.83 AU and reaching as far as 2.67 AU from the sun. Based on its brightness and the way it reflects light, 2005 CJ is probably between 0.227 to 0.508 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

Close Approaches

2005 CJ's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2005 CJ has 12 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Feb. 10, 2042 5,846,491 13.177
Dec. 24, 2048 22,194,213 9.979
Oct. 26, 2055 11,477,038 9.991
Oct. 1, 2062 24,808,702 17.069
Feb. 1, 2100 7,133,368 10.704
Nov. 30, 2106 22,578,675 10.011
Oct. 10, 2113 7,627,701 13.625
Jan. 26, 2144 12,804,533 9.791
Nov. 2, 2150 13,994,405 9.698
Feb. 9, 2181 1,598,635 12.095
Nov. 30, 2187 22,256,246 9.942
Oct. 8, 2194 15,852,359 15.274

Images and Observations

2005 CJ's orbit is determined by observations dating back to Aug. 19, 2004. It was last officially observed on April 2, 2019. The IAU Minor Planet Center records 360 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 2005 CJ:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.749 AU
  • Eccentricity: 0.5255
  • Inclination: 1.08°
  • Longitude of Ascending Node: 357.85°
  • Argument of Periapsis: 81.94°
  • Mean Anomaly: 33.0°

Physical Characteristics

  • Diameter: ~0.293 km
  • Magnitude: 20.34

Derived Characteristics

  • Orbit Period: 845 days (2.31 years)
  • Avg. Orbit Speed: 22.52 km/s
  • Aphelion Distance: 2.67 AU
  • Perihelion Distance: 0.83 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 523606 (2005 CJ) 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 below comparison is an artistic rendering that uses available data on the diameter of 2005 CJ to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.