Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to the Golden Gate Bridge (0.56 km diameter)
- Will pass within 25,400,331 km of Earth in 2034
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
13651 (1997 BR) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1997 BR as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
1997 BR orbits the sun every 564 days (1.54 years), coming as close as 0.93 AU and reaching as far as 1.74 AU from the sun. 1997 BR is about 0.6 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, comparable in size to the Golden Gate Bridge.
The rotation of 1997 BR has been observed. It completes a rotation on its axis every 33.64 hours.
1997 BR's spectral type None (Tholen) / S (SMASSII) indicates that it is likely to contain and .
Close Approaches
1997 BR's orbit is 0.01 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.
1997 BR has 8 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Aug. 2, 2034 | 25,400,331 | 14.974 |
| July 23, 2051 | 4,350,915 | 12.076 |
| July 24, 2068 | 7,392,565 | 12.452 |
| June 25, 2099 | 28,601,380 | 10.239 |
| July 15, 2116 | 9,819,579 | 10.823 |
| July 22, 2133 | 2,715,984 | 11.788 |
| July 8, 2164 | 17,450,541 | 10.399 |
| July 28, 2181 | 12,348,909 | 13.074 |
Images and Observations
1997 BR's orbit is determined by observations dating back to Feb. 9, 1980. It was last officially observed on Jan. 23, 2023. The IAU Minor Planet Center records 1,038 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 1997 BR:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.336 AU
- Eccentricity: 0.3057
- Inclination: 17.25°
- Longitude of Ascending Node: 116.65°
- Argument of Periapsis: 133.8°
- Mean Anomaly: 7.26°
Physical Characteristics
- Diameter: 0.56200 km
- Magnitude: 17.89
- Albedo: 0.511
- Spectral type (SMASS): S
Derived Characteristics
- Orbit Period: 564 days (1.54 years)
- Avg. Orbit Speed: 25.77 km/s
- Aphelion Distance: 1.74 AU
- Perihelion Distance: 0.93 AU
- Rotation Period: 33.64 hours
- Approx. Composition: and .
Map Comparison
Orbit Simulation
Sky Map
The position of 13651 (1997 BR) 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 1997 BR 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.
