Potomac is a large asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified Potomac as potentially hazardous because its orbit does not bring it close to Earth.
Potomac orbits the sun every 2,900 days (7.94 years), coming as close as 3.26 AU and reaching as far as 4.70 AU from the sun. Potomac is about 73.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Delaware.
The rotation of Potomac has been observed. It completes a rotation on its axis every 11.42 hours.
Potomac's orbit is 2.28 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.
Potomac's orbit is determined by observations dating back to Feb. 25, 1908. It was last officially observed on July 9, 2022. The IAU Minor Planet Center records 3,448 observations used to determine its orbit.
The position of Potomac 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.