Kuiper beltKui·per belt
a belt of icy debris orbiting in the outer solar system in the same plane as the planets, thought to be the source of many short-period comets
Origin of Kuiper beltafter G. P. Kuiper (1905-73), United States astronomer
A disk-shaped region in the outer solar system lying beyond the orbit of Neptune and extending to a distance of about 50 astronomical units, containing thousands of small icy bodies, some of which are on highly elliptical orbits, periodically visiting the inner solar system as comets.
Origin of Kuiper beltAfter Gerard Kuiper, (1905–1973), Dutch-born American astronomer who speculated about the existence of such a region.
- Alternative capitalization of Kuiper belt.