流星群,也称流星雨,通常是慧星慧尾的尘埃或者从小行星上脱落的小块物质引起的。
Meteors, also called shooting stars, normally begin as bits of dust from the tails of comets or even small pieces chipped off asteroids.
重点叙述流星天文学的历史与现状;流星群的地面和空间观测;流星雨观测和理论辐射点;
Especially, the history and status of meteoroid astronomy, the ground-based and space observations of meteoroid streams, the observed and theoretical radiants about meteor showers;
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