205744 (2002 BK25)

Small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 205744 (2002 BK25)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 11,586,484 km of Earth in 2047
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

205744 (2002 BK25) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2002 BK25 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2002 BK25 orbits the sun every 1,270 days (3.48 years), coming as close as 0.58 AU and reaching as far as 4.02 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2002 BK25 is probably between 0.590 to 1.318 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.

2002 BK25's spectral type None (Tholen) / Sk (SMASSII) indicates that it is likely to contain and .

Close Approaches

2002 BK25's orbit is 0.05 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.

2002 BK25 has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 8, 2047 11,586,484 22.100
Sept. 2, 2054 20,015,212 19.971
March 7, 2103 17,695,423 26.016
Sept. 18, 2148 21,685,783 26.599
March 19, 2190 25,200,905 19.694
March 11, 2197 18,470,342 24.179

Images and Observations

2002 BK25's orbit is determined by observations dating back to Feb. 4, 1995. It was last officially observed on Feb. 1, 2023. The IAU Minor Planet Center records 400 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 2002 BK25:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.3 AU
  • Eccentricity: 0.7474
  • Inclination: 11.93°
  • Longitude of Ascending Node: 156.12°
  • Argument of Periapsis: 103.97°
  • Mean Anomaly: 50.28°

Physical Characteristics

  • Diameter: ~0.761 km
  • Magnitude: 18.27
  • Spectral type (SMASS): Sk

Derived Characteristics

  • Orbit Period: 1,270 days (3.48 years)
  • Avg. Orbit Speed: 19.70 km/s
  • Aphelion Distance: 4.02 AU
  • Perihelion Distance: 0.58 AU
  • Approx. Composition: and .

Map Comparison

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Orbit Simulation

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Sky Map

The position of 205744 (2002 BK25) 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 2002 BK25 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.