Key Facts

Overview

456826 (2007 TH422) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2007 TH422 as potentially hazardous because its orbit does not bring it close to Earth.

2007 TH422 orbits the sun every 89,500 days (245.04 years), coming as close as 28.42 AU and reaching as far as 49.90 AU from the sun. Based on its brightness and the way it reflects light, 2007 TH422 is probably between 76.658 to 171.412 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Delaware.

No Close Approaches

2007 TH422's orbit is 27.50 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

2007 TH422's orbit is determined by observations dating back to Oct. 3, 2007. It was last officially observed on Jan. 4, 2016. The IAU Minor Planet Center records 36 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 2007 TH422:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 39.16 AU
  • Eccentricity: 0.2742
  • Inclination: 28.6°
  • Longitude of Ascending Node: 96.32°
  • Argument of Periapsis: 312.19°
  • Mean Anomaly: 20.15°

Physical Characteristics

  • Diameter: ~98.964 km
  • Magnitude: 7.7

Derived Characteristics

  • Orbit Period: 89,500 days (245.04 years)
  • Avg. Orbit Speed: 4.76 km/s
  • Aphelion Distance: 49.90 AU
  • Perihelion Distance: 28.42 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 456826 (2007 TH422) 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.