Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 27,635,019 km of Earth in 2021
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

531914 (2013 BW76) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2013 BW76 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2013 BW76 orbits the sun every 1,080 days (2.96 years), coming as close as 0.96 AU and reaching as far as 3.16 AU from the sun. Based on its brightness and the way it reflects light, 2013 BW76 is probably between 0.563 to 1.259 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.

Close Approaches

2013 BW76's orbit is 0.03 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.

2013 BW76 has 5 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Nov. 30, 2021 27,635,019 25.065
Nov. 14, 2024 16,245,715 24.599
Nov. 24, 2083 8,981,914 24.507
Nov. 27, 2148 16,791,593 24.590
Nov. 14, 2151 22,291,547 24.673

Images and Observations

2013 BW76's orbit is determined by observations dating back to Jan. 22, 2013. It was last officially observed on April 12, 2022. The IAU Minor Planet Center records 123 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 2013 BW76:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.059 AU
  • Eccentricity: 0.5336
  • Inclination: 40.36°
  • Longitude of Ascending Node: 58.22°
  • Argument of Periapsis: 0.54°
  • Mean Anomaly: 216.93°

Physical Characteristics

  • Diameter: ~0.727 km
  • Magnitude: 18.37

Derived Characteristics

  • Orbit Period: 1,080 days (2.96 years)
  • Avg. Orbit Speed: 20.74 km/s
  • Aphelion Distance: 3.16 AU
  • Perihelion Distance: 0.96 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 531914 (2013 BW76) 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 2013 BW76 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.