Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to the U.S. Capitol building
- Will pass within 15,167,597 km of Earth in 2022
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
429584 (2011 EU29) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2011 EU29 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2011 EU29 orbits the sun every 1,450 days (3.97 years), coming as close as 0.75 AU and reaching as far as 4.25 AU from the sun. Based on its brightness and the way it reflects light, 2011 EU29 is probably between 0.293 to 0.655 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to the U.S. Capitol building.
The rotation of 2011 EU29 has been observed. It completes a rotation on its axis every 43.50 hours.
Close Approaches
2011 EU29's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.
2011 EU29 has 9 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Oct. 5, 2022 | 15,167,597 | 14.147 |
| Sept. 15, 2026 | 20,161,167 | 21.006 |
| Feb. 16, 2114 | 28,537,233 | 22.657 |
| Feb. 2, 2118 | 4,938,167 | 16.528 |
| Jan. 11, 2122 | 24,059,503 | 13.107 |
| Oct. 22, 2129 | 26,040,387 | 13.170 |
| Sept. 26, 2133 | 1,537,537 | 16.706 |
| Sept. 20, 2137 | 9,143,367 | 18.856 |
| Sept. 12, 2141 | 28,319,427 | 22.647 |
Images and Observations
2011 EU29's orbit is determined by observations dating back to March 8, 2011. It was last officially observed on March 26, 2023. The IAU Minor Planet Center records 441 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 2011 EU29:References
Search
or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 2.503 AU
- Eccentricity: 0.6999
- Inclination: 2.58°
- Longitude of Ascending Node: 177.15°
- Argument of Periapsis: 251.2°
- Mean Anomaly: 75.99°
Physical Characteristics
- Diameter: ~0.378 km
- Magnitude: 19.79
Derived Characteristics
- Orbit Period: 1,450 days (3.97 years)
- Avg. Orbit Speed: 18.78 km/s
- Aphelion Distance: 4.25 AU
- Perihelion Distance: 0.75 AU
- Rotation Period: 43.50 hours
Map Comparison
Orbit Simulation
Sky Map
The position of 429584 (2011 EU29) 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 2011 EU29 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.
