2011年8月13日：来自太空的英仙流星群

本文介绍了年度最著名的流星雨——英仙流星群。文章解释了流星雨的成因，并指出了其母体彗星为109P/Swift-Tuttle。

Likely the best-known meteor shower of the year, the Perseids occur from late July through late August annually, typically peaking around Aug. 12-13. Meteor showers occur when the Earth passes through the debris field left behind as a comet orbits the Sun. In the case of the Perseids, that comet is Comet 109P/Swift-Tuttle, discovered in Continue reading "Aug. 13, 2011: Perseids from space" The post Aug. 13, 2011: Perseids from space appeared first on Astronomy Magazine .