asteroid family中文什么意思

小行星家族

小行星族

• asteroid:    adj. 星状的。 n. 1.【天文 ...
• family:    n. 1.家，家庭；〔集合词〕家庭成 ...
• amor asteroid:    阿莫尔型小行星; 阿莫型小行星

百科释义

An asteroid family is a population of asteroids that share similar proper orbital elements, such as semimajor axis, eccentricity, and orbital inclination. The members of the families are thought to be fragments of past asteroid collisions.