Description: 柯伊伯带是外太阳系的一个冰冻小天体带，大部分位于海王星轨道之外，其中的大多数天体与太阳的距离为 40-48 个天文单位。

柯伊伯带中的天体大多很小，但也有包括冥王星在内的几颗矮行星。与小行星带中的小天体和矮行星不同，柯伊伯带中的天体大多由冰冻的水、甲烷和氨组成。

Related Terms:

• Neptune
• Pluto
• Solar System
• Oort Cloud

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".