199913EY

199913EY is a minor planet, also known as an asteroid, that orbits within the main asteroid belt located between the orbits of Mars and Jupiter. It was discovered on October 1, 1999, by the Lincoln Near-Earth Asteroid Research (LINEAR) project, a collaborative effort between the United States Air Force, NASA, and the Massachusetts Institute of Technology's Lincoln Laboratory.

The asteroid has an estimated diameter of approximately 1.3 kilometers (0.8 miles) and takes about 3.7 years to complete one orbit around the Sun. Its orbit is moderately inclined, meaning it does not lie perfectly within the plane of the ecliptic, and it is slightly eccentric, indicating that its distance from the Sun varies somewhat over the course of its orbit.

199913EY is classified as a main-belt asteroid, which means it is not a near-Earth object and does not pose any threat to our planet. Its composition is likely similar to that of other main-belt asteroids, which are primarily rocky bodies with some metallic content. The specific spectral type of 199913EY has not been determined, so its exact composition remains uncertain.

As with many minor planets, 199913EY is named according to the conventions established by the International Astronomical Union. The name "199913EY" indicates that it was the 332nd asteroid discovered in the second half of October 1999. The "EY" suffix denotes its specific discovery sequence within that time frame. While it does not have a unique name, it is still a recognized member of the solar system's vast population of minor planets.