20305

20305 is a minor planet located in the asteroid belt between the orbits of Mars and Jupiter. It was discovered on October 25, 1996, by astronomers at the Spacewatch program, an observational project based at the Kitt Peak National Observatory in Arizona, United States. The asteroid was officially named after the year 2030, with the "5" appended to distinguish it from other numbered objects.

20305 is classified as a main-belt asteroid, meaning it resides primarily in the region between Mars and Jupiter where most asteroids are found. Its orbit has a semi-major axis of approximately 2.6 astronomical units (AU), taking about 4.2 years to complete one revolution around the Sun. The asteroid has an estimated diameter of around 3 kilometers (1.9 miles), based on observations of its brightness and assumed albedo.

Little is known about its physical properties beyond its size and orbital characteristics. Like many asteroids, 20305 is likely composed of rock and metal, remnants from the early solar system. Its designation follows the naming conventions of the Minor Planet Center, where asteroids are numbered sequentially upon confirmation of their orbits.

While 20305 does not pose any known threat to Earth, it remains an object of interest for astronomers studying the distribution and composition of asteroids in the main belt. Its discovery contributes to the broader understanding of the solar system’s formation and evolution. Observations of such objects help scientists refine models of planetary dynamics and the early conditions of the solar system.