Key Facts

  • Categorized as a Interior-Earth Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 29,849,067 km of Earth in 2090
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation


413563 (2005 TG45) is a mid-sized asteroid with an orbit that is entirely confined within Earth's orbit. NASA JPL has classified 2005 TG45 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

2005 TG45 orbits the sun every 205 days (0.56 years), coming as close as 0.43 AU and reaching as far as 0.94 AU from the sun. Based on its brightness and the way it reflects light, 2005 TG45 is probably between 0.792 to 1.770 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the Golden Gate Bridge.

The rotation of 2005 TG45 has been observed. It completes a rotation on its axis every 1.39 hours.

Close Approaches

2005 TG45's orbit is 0.20 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2005 TG45 has 5 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
July 14, 2090 29,849,067 14.105
July 14, 2099 29,837,070 14.085
July 14, 2108 29,760,300 14.017
July 14, 2189 29,821,060 13.967
July 14, 2198 29,702,355 13.721

Images and Observations

2005 TG45's orbit is determined by observations dating back to Sept. 26, 2005. It was last officially observed on Sept. 6, 2022. The IAU Minor Planet Center records 268 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 TG45:



   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.6814 AU
  • Eccentricity: 0.3722
  • Inclination: 23.33°
  • Longitude of Ascending Node: 273.42°
  • Argument of Periapsis: 230.44°
  • Mean Anomaly: 172.08°

Physical Characteristics

  • Diameter: ~1.022 km
  • Magnitude: 17.63

Derived Characteristics

  • Orbit Period: 205 days (0.56 years)
  • Avg. Orbit Speed: 36.16 km/s
  • Aphelion Distance: 0.94 AU
  • Perihelion Distance: 0.43 AU
  • Rotation Period: 1.39 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 413563 (2005 TG45) 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 TG45 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.