20129

20129 is an asteroid in the main asteroid belt, discovered on April 13, 1996, by the Spacewatch project at Kitt Peak National Observatory. It is a C-type asteroid, meaning it is composed primarily of carbonaceous material. C-type asteroids are among the most common types of asteroids in the solar system.

The asteroid has a diameter estimated to be between 5 and 10 kilometers. Its orbital period is approximately 3.7 years, and it follows a relatively circular orbit around the Sun. Like other asteroids, 20129 is thought to be a remnant from the early formation of the solar system, never having coalesced into a planet.

Observations of 20129 have been conducted using various telescopes, including ground-based observatories and space telescopes. These observations help astronomers determine its size, shape, composition, and orbital characteristics. The study of asteroids like 20129 provides valuable insights into the conditions and processes that occurred during the formation of our planetary system.

The asteroid's designation, 20129, follows the standard astronomical naming convention for minor planets. The number is assigned sequentially as new objects are discovered and their orbits are confirmed. While 20129 is not considered a threat to Earth, its study contributes to the broader understanding of the solar system's composition and evolution.