Hippocastanum is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Hippocastanum as potentially hazardous because its orbit does not bring it close to Earth.
Hippocastanum orbits the sun every 1,550 days (4.24 years), coming as close as 2.13 AU and reaching as far as 3.12 AU from the sun. Based on its brightness and the way it reflects light, Hippocastanum is probably between 5.605 to 12.533 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.
The rotation of Hippocastanum has been observed. It completes a rotation on its axis every 193.55 hours.
Hippocastanum's orbit is 1.18 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.
Hippocastanum's orbit is determined by observations dating back to June 28, 1990. It was last officially observed on June 8, 2023. The IAU Minor Planet Center records 3,170 observations used to determine its orbit.
The position of Hippocastanum 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.