Key Facts

Overview

261081 (2005 SH225) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 2005 SH225 as potentially hazardous because its orbit does not bring it close to Earth.

2005 SH225 orbits the sun every 1,630 days (4.46 years), coming as close as 2.22 AU and reaching as far as 3.19 AU from the sun. Based on its brightness and the way it reflects light, 2005 SH225 is probably between 1.530 to 3.420 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

No Close Approaches

2005 SH225's orbit is 1.25 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 SH225's orbit is determined by observations dating back to Dec. 18, 2001. It was last officially observed on April 19, 2020. The IAU Minor Planet Center records 323 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 SH225:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 2.706 AU
  • Eccentricity: 0.1785
  • Inclination: 11.88°
  • Longitude of Ascending Node: 85.68°
  • Argument of Periapsis: 326.27°
  • Mean Anomaly: 85.5°

Physical Characteristics

  • Diameter: ~1.975 km
  • Magnitude: 16.2

Derived Characteristics

  • Orbit Period: 1,630 days (4.46 years)
  • Avg. Orbit Speed: 18.06 km/s
  • Aphelion Distance: 3.19 AU
  • Perihelion Distance: 2.22 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 261081 (2005 SH225) 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.