Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to the Golden Gate Bridge (0.68 km diameter)
- Will pass within 17,546,124 km of Earth in 2025
- Classified as a Near Earth Asteroid (NEA)
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
155110 (2005 TB) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2005 TB as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.
2005 TB orbits the sun every 517 days (1.42 years), coming as close as 0.82 AU and reaching as far as 1.70 AU from the sun. 2005 TB is about 0.7 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 2005 TB has been observed. It completes a rotation on its axis every 3.48 hours.
Close Approaches
2005 TB's orbit is 0.11 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.
2005 TB has 7 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| April 29, 2025 | 17,546,124 | 19.626 |
| April 29, 2042 | 17,780,322 | 19.686 |
| April 28, 2059 | 18,552,199 | 19.864 |
| April 26, 2076 | 20,115,711 | 20.151 |
| April 23, 2093 | 24,364,393 | 20.798 |
| May 15, 2168 | 26,930,356 | 18.121 |
| May 11, 2185 | 22,661,518 | 18.322 |
Images and Observations
2005 TB's orbit is determined by observations dating back to Nov. 24, 1984. It was last officially observed on Dec. 26, 2022. The IAU Minor Planet Center records 883 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 2005 TB:References
Search
or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.261 AU
- Eccentricity: 0.3485
- Inclination: 30.38°
- Longitude of Ascending Node: 226.18°
- Argument of Periapsis: 44.77°
- Mean Anomaly: 282.05°
Physical Characteristics
- Diameter: 0.68300 km
- Magnitude: 17.49
- Albedo: 0.379
Derived Characteristics
- Orbit Period: 517 days (1.42 years)
- Avg. Orbit Speed: 26.53 km/s
- Aphelion Distance: 1.70 AU
- Perihelion Distance: 0.82 AU
- Rotation Period: 3.48 hours
Map Comparison
Orbit Simulation
Sky Map
The position of 155110 (2005 TB) 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 2005 TB 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.
