Key Facts
- Categorized as a Main-belt Asteroid
- Comparable in size to the city of Cleveland, Ohio (11.43 km diameter)
- Not a Near Earth Object
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
Colleenohare is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Colleenohare as potentially hazardous because its orbit does not bring it close to Earth.
Colleenohare orbits the sun every 1,930 days (5.28 years), coming as close as 2.67 AU and reaching as far as 3.40 AU from the sun. Colleenohare is about 11.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Cleveland, Ohio.
The rotation of Colleenohare has been observed. It completes a rotation on its axis every 5.35 hours.
No Close Approaches
Colleenohare's orbit is 1.67 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.
Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.
Images and Observations
Colleenohare's orbit is determined by observations dating back to Oct. 19, 1933. It was last officially observed on June 30, 2023. The IAU Minor Planet Center records 4,111 observations used to determine its orbit.
Scientists have been able to determine this object's shape:
View asteroid Colleenohare in 3D.
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 Colleenohare:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 3.034 AU
- Eccentricity: 0.1198
- Inclination: 10.87°
- Longitude of Ascending Node: 12.68°
- Argument of Periapsis: 325.29°
- Mean Anomaly: 40.18°
Physical Characteristics
- Diameter: 11.43200 km
- Magnitude: 12.52
- Albedo: 0.135
Derived Characteristics
- Orbit Period: 1,930 days (5.28 years)
- Avg. Orbit Speed: 17.10 km/s
- Aphelion Distance: 3.40 AU
- Perihelion Distance: 2.67 AU
- Rotation Period: 5.35 hours
Map Comparison
Orbit Simulation
Sky Map
The position of Colleenohare 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.