Definition

1. Noun:
   • A Kuiper Belt Object: A KBO is any of the numerous small, icy bodies that orbit the Sun in the Kuiper Belt, a region of the solar system beyond the orbit of the planet Neptune.

Usage Examples

• Noun:
  • Pluto is classified as a KBO.
  • Astronomers discovered a new KBO with a highly elliptical orbit.
  • The spacecraft's mission is to study a distant KBO.

Advanced Usage

• As a specific astronomical classification: The term is used to categorize celestial bodies based on their location and composition.
  • Sedna, due to its extreme orbit, is sometimes considered a detached object rather than a typical KBO.

Variants and Related Words

• Kuiper Belt Object (full form): The complete term for KBO.
• Trans-Neptunian Object (TNO): A broader category that includes all objects orbiting the Sun beyond Neptune, encompassing KBOs.
• Plutoid: A subcategory of KBOs that are large enough to be rounded by their own gravity, such as Pluto and Eris.

Synonyms

• Kuiper Belt Object: The full, formal synonym.
• Trans-Neptunian Object (TNO): A related, more general term.

Notes on Meaning

• The term KBO specifically refers to objects within the Kuiper Belt's main region. Other distant solar system objects, like those in the scattered disc or the Oort cloud, have different classifications, though they may also be Trans-Neptunian Objects (TNOs).

Noun

1. any of many minor planets in the Kuiper belt outside the orbit of Neptune at the edge of the solar system