Donnison is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Donnison as potentially hazardous because its orbit does not bring it close to Earth.
Donnison orbits the sun every 1,320 days (3.61 years), coming as close as 1.84 AU and reaching as far as 2.88 AU from the sun. Based on its brightness and the way it reflects light, Donnison is probably between 3.472 to 7.763 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the island of Manhattan.
The rotation of Donnison has been observed. It completes a rotation on its axis every 48.20 hours.
Donnison's orbit is 0.82 AU from Earth's orbit at its closest point. This means that there is a very 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.
Donnison's orbit is determined by observations dating back to July 28, 1949. It was last officially observed on April 9, 2023. The IAU Minor Planet Center records 3,080 observations used to determine its orbit.
The position of Donnison 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.
The above comparison is an artistic rendering that uses available data on the diameter of Donnison 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.