2014 HK129

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 2014 HK129

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 2,569,180 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2014 HK129 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2014 HK129 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2014 HK129 orbits the sun every 810 days (2.22 years), coming as close as 0.87 AU and reaching as far as 2.53 AU from the sun. Based on its brightness and the way it reflects light, 2014 HK129 is probably between 0.160 to 0.358 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

The rotation of 2014 HK129 has been observed. It completes a rotation on its axis every 15.12 hours.

Close Approaches

2014 HK129'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.

2014 HK129 has 10 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 20, 2022 2,569,180 11.578
April 10, 2034 20,278,133 12.778
Feb. 22, 2054 21,830,129 9.133
Dec. 30, 2073 7,987,398 9.820
Dec. 17, 2093 7,071,956 12.487
April 8, 2105 17,806,315 11.603
Feb. 11, 2125 21,478,720 9.218
Dec. 25, 2144 2,315,822 10.787
March 7, 2165 21,102,900 8.883
Jan. 4, 2194 9,933,253 9.541

Images and Observations

2014 HK129's orbit is determined by observations dating back to April 27, 2014. It was last officially observed on Dec. 20, 2022. The IAU Minor Planet Center records 270 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 2014 HK129:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.7 AU
  • Eccentricity: 0.4887
  • Inclination: 6.71°
  • Longitude of Ascending Node: 93.84°
  • Argument of Periapsis: 45.34°
  • Mean Anomaly: 102.1°

Physical Characteristics

  • Diameter: ~0.207 km
  • Magnitude: 21.1

Derived Characteristics

  • Orbit Period: 810 days (2.22 years)
  • Avg. Orbit Speed: 22.83 km/s
  • Aphelion Distance: 2.53 AU
  • Perihelion Distance: 0.87 AU
  • Rotation Period: 15.12 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2014 HK129 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 2014 HK129 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.