Lyyli

Key Facts

• Categorized as a Mars-crossing Asteroid
• Comparable in size to the city of Indianapolis (25.16 km diameter)
• Not a Near Earth Object
• Not a Potentially Hazardous Object
• See orbit simulation

Overview

Lyyli is a large asteroid with an orbit that crosses the orbit of Mars. NASA JPL has not classified Lyyli as potentially hazardous because its orbit does not bring it close to Earth.

Lyyli orbits the sun every 1,520 days (4.16 years), coming as close as 1.54 AU and reaching as far as 3.64 AU from the sun. Lyyli is about 25.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of Lyyli has been observed. It completes a rotation on its axis every 11.06 hours.

Lyyli's spectral type None (Tholen) / X (SMASSII) indicates that it is likely to contain iron, nickel, and cobalt.

No Close Approaches

Lyyli's orbit is 0.69 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.

Images and Observations

Lyyli's orbit is determined by observations dating back to March 3, 1943. It was last officially observed on July 4, 2023. The IAU Minor Planet Center records 3,724 observations used to determine its orbit.

Scientists have been able to determine this object's shape:

View asteroid Lyyli in 3D.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of Lyyli:

• 14 Irene (A851 KA)
• 32 Pomona (A854 UA)
• 56 Melete (A857 RB)

References

• JPL Small Body Database
• Mission Design
• Sky Finder Chart

Orbit Simulation

Sky Map

The position of Lyyli 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.