29120

29120 is a numbered minor planet located in the asteroid belt between Mars and Jupiter. It was discovered on 24 April 2000 by the Lincoln Near-Earth Asteroid Research (LINEAR) project at the Socorro observatory in New Mexico, United States. The discoverers identified the object during a systematic survey of the sky for near-Earth objects, and it subsequently received its provisional designation 2000 AV3 before being assigned the permanent number 29120.

The asteroid orbits the Sun with a semi‑major axis of approximately 2.45 astronomical units (AU), placing it in the inner region of the main belt. Its orbital period is about 3.82 years, and the orbit is slightly eccentric with an eccentricity of approximately 0.13. The inclination of its orbit relative to the ecliptic plane is modest, around 5 degrees. Because its orbit lies well within the main belt and does not cross the orbit of Earth, 29120 is classified as a background asteroid rather than a near‑Earth object.

Physical measurements based on photometric observations suggest that 29120 is relatively small, with an estimated diameter of roughly 2 kilometers, assuming a standard albedo for stony asteroids. The rotational period of the object has not been firmly established; however, preliminary light‑curve analyses indicate a relatively slow rotation and a possible amplitude of variation in brightness. Spectral classification data are limited, and no detailed spectroscopic studies have been published to date.

The name "29120" remains the object's official designation; no formal name has been assigned by the International Astronomical Union. As a result, the catalog entries for the minor planet continue to reference its numerical designation only. Further observations of its orbit and physical properties are expected to refine our understanding of its composition and dynamical behavior within the main‑belt asteroid population.