Aten asteroid


Also found in: Wikipedia.

Aten asteroid

[′ä‚ten ′as·tə‚rȯid]
(astronomy)
An asteroid whose period is less than that of the earth.
Mentioned in ?
References in periodicals archive ?
This newest asteroid is up to 50 percent more likely to hit Earth than other types of asteroids, said Helin, who pioneered the study of Aten asteroids in the 1970s.