12290 (1991 LZ) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1991 LZ as potentially hazardous because its orbit does not bring it close to Earth.
1991 LZ orbits the sun every 1,370 days (3.75 years), coming as close as 1.84 AU and reaching as far as 2.99 AU from the sun. 1991 LZ is about 3.6 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the island of Manhattan.
The rotation of 1991 LZ has been observed. It completes a rotation on its axis every 21.96 hours.
1991 LZ's orbit is 0.85 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.
1991 LZ's orbit is determined by observations dating back to Nov. 2, 1973. It was last officially observed on Jan. 18, 2023. The IAU Minor Planet Center records 2,664 observations used to determine its orbit.
The position of 12290 (1991 LZ) 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 1991 LZ 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.