161606 (2005 UR38)

Mid-sized Outer Main-belt Asteroid

Space Reference » Outer Main-belt Asteroids » 161606 (2005 UR38)

Key Facts

Overview

161606 (2005 UR38) is a mid-sized asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified 2005 UR38 as potentially hazardous because its orbit does not bring it close to Earth.

2005 UR38 orbits the sun every 2,830 days (7.75 years), coming as close as 3.60 AU and reaching as far as 4.23 AU from the sun. Based on its brightness and the way it reflects light, 2005 UR38 is probably between 3.669 to 8.204 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.

No Close Approaches

2005 UR38's orbit is 2.61 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

2005 UR38's orbit is determined by observations dating back to Sept. 11, 1996. It was last officially observed on March 27, 2023. The IAU Minor Planet Center records 704 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 UR38:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.915 AU
  • Eccentricity: 0.0817
  • Inclination: 3.2°
  • Longitude of Ascending Node: 85.67°
  • Argument of Periapsis: 328.68°
  • Mean Anomaly: 109.89°

Physical Characteristics

  • Diameter: ~4.737 km
  • Magnitude: 14.3

Derived Characteristics

  • Orbit Period: 2,830 days (7.75 years)
  • Avg. Orbit Speed: 15.05 km/s
  • Aphelion Distance: 4.23 AU
  • Perihelion Distance: 3.60 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 161606 (2005 UR38) 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 UR38 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.