20408

20408 is a designation that can refer to several different things, most notably a minor planet and a specific year.

As a minor planet, 20408 is part of the asteroid belt, located between the orbits of Mars and Jupiter. It was discovered in 1998 by the LINEAR program, which stands for the Lincoln Near-Earth Asteroid Research project. Like other asteroids, it is a rocky body that never coalesced into a planet. Its precise composition and size are not widely known, but it orbits the Sun at an average distance of approximately 2.5 astronomical units.

The year 20408 is a future year in the Gregorian calendar. It will be a leap year, with February having 29 days. As a year in the 21st century, it follows 20407 and precedes 20409. Events that may occur in 20408 are speculative, but it falls within the timeframe where technological advancements and societal changes are predicted by various futurists and scientific projections. No specific significant historical events are associated with this year as it has not yet occurred.