2005 TH173 is a large asteroid with an orbit between Jupiter and Neptune. NASA JPL has not classified 2005 TH173 as potentially hazardous because its orbit does not bring it close to Earth.
2005 TH173 orbits the sun every 32,300 days (88.43 years), coming as close as 13.77 AU and reaching as far as 25.95 AU from the sun. Based on its brightness and the way it reflects light, 2005 TH173 is probably between 12.149 to 27.167 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the city of Philadelphia.
2005 TH173's orbit is 12.80 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.
2005 TH173's orbit is determined by observations dating back to Dec. 3, 2004. It was last officially observed on Dec. 4, 2005. The IAU Minor Planet Center records 18 observations used to determine its orbit.
The position of 2005 TH173 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.