Meteor including single meteor (sporadic meteor), and the meteor shower of meteors fire are larger than mung bean of the meteoroid enters the atmosphere will be a visible brightness of the meteor.

• 流星包括单个流星（偶发流星）、火流星和流星雨三种，比绿豆大一点的流星体进入大气层就能形成肉眼可见亮度的流星。