Brunner

142754 Brunner (2002 TR317)

Space Reference » Main-belt Asteroids » Brunner

Key Facts

Overview

Brunner is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Brunner as potentially hazardous because its orbit does not bring it close to Earth.

Brunner orbits the sun every 1,510 days (4.13 years), coming as close as 2.13 AU and reaching as far as 3.02 AU from the sun. Based on its brightness and the way it reflects light, Brunner is probably between 1.238 to 2.767 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

No Close Approaches

Brunner's orbit is 1.14 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

Brunner's orbit is determined by observations dating back to Oct. 26, 1994. It was last officially observed on May 13, 2021. The IAU Minor Planet Center records 253 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 Brunner:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.575 AU
  • Eccentricity: 0.1719
  • Inclination: 6.57°
  • Longitude of Ascending Node: 216.54°
  • Argument of Periapsis: 196.46°
  • Mean Anomaly: 342.94°

Physical Characteristics

  • Diameter: ~1.598 km
  • Magnitude: 16.66

Derived Characteristics

  • Orbit Period: 1,510 days (4.13 years)
  • Avg. Orbit Speed: 18.55 km/s
  • Aphelion Distance: 3.02 AU
  • Perihelion Distance: 2.13 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of Brunner 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 Brunner 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.