525729 (2005 RQ43) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2005 RQ43 as potentially hazardous because its orbit does not bring it close to Earth.
2005 RQ43 orbits the sun every 98,300 days (269.13 years), coming as close as 37.60 AU and reaching as far as 45.78 AU from the sun. Based on its brightness and the way it reflects light, 2005 RQ43 is probably between 138.215 to 309.058 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Massachusetts.
2005 RQ43's orbit is 36.70 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 RQ43's orbit is determined by observations dating back to Sept. 22, 2004. It was last officially observed on July 31, 2020. The IAU Minor Planet Center records 226 observations used to determine its orbit.
The position of 525729 (2005 RQ43) 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.