Cruithne is a mid-sized asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified Cruithne 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.
Cruithne orbits the sun every 364 days (1.00 years), coming as close as 0.48 AU and reaching as far as 1.51 AU from the sun. Cruithne is about 2.1 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to Mount Everest.
The rotation of Cruithne has been observed. It completes a rotation on its axis every 27.31 days.
Cruithne's orbit is 0.07 AU from Earth's orbit at its closest point. This means that there is an 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.
Cruithne's orbit is determined by observations dating back to Oct. 17, 1973. It was last officially observed on Nov. 9, 2019. The IAU Minor Planet Center records 792 observations used to determine its orbit.
The position of Cruithne 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.