Glossary term: 小行星带

Also known as Main Asteroid Belt

Description: 小行星带位于火星和木星之间的区域；围绕该区域运行的是矮行星谷神星和大量主要由岩石和一些矿物组成的小型小行星。小行星带被称为主小行星带，以便将其与太阳系中发现的其他小天体（即近地天体和特洛伊群）区分开来。

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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".

Related Media

谷神星

Caption: 这是一张由“黎明号”探测器在2015年5月在13641公里的距离拍摄的小行星谷神星的真彩色图像。右侧醒目的明亮陨石坑是豪拉尼（Haulani）陨石坑，其左侧较小的亮点位于奥克索（Oxo）陨石坑的底部。来自这些撞击的喷出物似乎暴露出明亮的物质，可能是水冰。
Credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA / Justin Cowart

License: CC-BY-2.0 Creative Commons Attribution 2.0 Generic icons

The asteroid Ida is grey and shaped like a potato with lots of shallow craters. It's moon Dactyl is 40 times smaller

Ida and Dactyl

Caption: This picture of the asteroid Ida with its satellite Dactyl was taken by the Galileo space probe in August 1993 from a range of 10,870 kilometers (6,755 miles). Ida is a heavily cratered, irregularly shaped asteroid in the main asteroid belt between Mars and Jupiter. This image is proof that asteroids like the 56 km large Ida can possess their own moons.
Credit: NASA/JPL credit link

License: PD Public Domain icons

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