9P/Tempel 1 is a mid-sized comet whose orbit features a relatively short period, low inclination, and is controlled by Jupiter's gravitational effects. NASA JPL has not classified 9P/Tempel 1 as potentially hazardous because its orbit does not bring it close to Earth.
9P/Tempel 1 orbits the sun every 2,040 days (5.59 years), coming as close as 1.54 AU and reaching as far as 4.75 AU from the sun. 9P/Tempel 1 is about 6.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.
The rotation of 9P/Tempel 1 has been observed. It completes a rotation on its axis every 40.70 days.
9P/Tempel 1's orbit is 0.53 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.
9P/Tempel 1's orbit is determined by observations dating back to Nov. 11, 2015. It was last officially observed on Jan. 31, 2020. The IAU Minor Planet Center records 1,485 observations used to determine its orbit.
The position of 9P/Tempel 1 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.