2006/10/14 | 阿托恩小行星[Aten Asteroid]
类别(¤〖天文〗) | 评论(0) | 阅读(42) | 发表于 15:26
The Aten asteroids are a class of asteroids with Venus-crossing orbits. The first was discovered in 1976 by JPL astronomer Eleanor Helin. There are now 30 known Atens (Minor Planet Center).
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