145480 (2005 TB190) is a dwarf planet whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2005 TB190 as potentially hazardous because its orbit does not bring it close to Earth.
2005 TB190 orbits the sun every 246,000 days (673.51 years), coming as close as 46.22 AU and reaching as far as 107.30 AU from the sun. Based on its brightness and the way it reflects light, 2005 TB190 is probably between 328.515 to 734.581 kilometers in diameter, making it one of the largest objects, very roughly comparable in size to the U.S. state of South Dakota.
The rotation of 2005 TB190 has been observed. It completes a rotation on its axis every 12.68 hours.
2005 TB190's orbit is 45.20 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 TB190's orbit is determined by observations dating back to Nov. 18, 2001. It was last officially observed on Oct. 19, 2022. The IAU Minor Planet Center records 686 observations used to determine its orbit.
The position of 145480 (2005 TB190) 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.