Glossary term: 特洛伊天体
Description: 特洛伊天体是指一类绕太阳运行的小行星，它们的轨道与某些主要行星的轨道相同，但比行星提前六分之一个轨道，或是滞后六分之一个轨道。这两个点，即行星的前方和后方，是两个特殊的引力点，被称为拉格朗日点 4 和 5。在这里，一个小天体可以稳定地保持其轨道位置，不会被行星的引力扰动。
太阳系中最大的特洛伊小行星群是那些与木星共享轨道的小天体。位于木星前方 60 度的特洛伊天体有时被称为希腊群，是以特洛伊战争中的希腊神话人物命名的。位于木星后方 60 度的行星则以特洛伊的人物命名。
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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
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