Kuiper belt object
/ˈkaɪpər/
词源说明
Named after Gerard Kuiper, who theorized about the belt's existence.
释义
名词noun
- 1(astronomy) A trans-Neptunian object (TNO) (a type of minor planet) that has an orbit in the Kuiper belt (between 30-50 AU) with inclinations consistent with the ecliptic.