 U (trans-Neptunian object)

U is a designation for a specific trans-Neptunian object (TNO) that was discovered in the outer solar system. TNOs are icy bodies that orbit the Sun at a greater distance than Neptune. They are part of a larger group of objects known as the Kuiper Belt, which contains many similar bodies. The designation "U" is used here for clarity, as there can be multiple objects with similar naming conventions.