Phaetusa is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Phaetusa as potentially hazardous because its orbit does not bring it close to Earth.
Phaetusa orbits the sun every 1,220 days (3.34 years), coming as close as 1.87 AU and reaching as far as 2.59 AU from the sun. Phaetusa is about 8.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.
The rotation of Phaetusa has been observed. It completes a rotation on its axis every 4.54 hours.
Phaetusa's orbit is 0.87 AU from Earth's orbit at its closest point. This means that there is an 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.
Phaetusa's orbit is determined by observations dating back to Sept. 7, 1920. It was last officially observed on April 25, 2021. The IAU Minor Planet Center records 3,380 observations used to determine its orbit.
Scientists have been able to determine this object's shape.
View asteroid Phaetusa in 3D.
The position of Phaetusa 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.