斯威夫特-塔特尔彗星撒下的尘埃形成的英仙座流星雨，为北半球的天空年复一年地带来盛大的夏日流星秀。
Dust from comet Swift-Tuttle is responsible for the Perseids, creating the northern hemisphere's regular summer sky show.
斯威夫特-塔特尔彗星撒下的尘埃形成的英仙座流星雨，为北半球的天空年复一年地带来盛大的夏日流星秀。
Dust from comet Swift-Tuttle is responsible for the Perseids, creating the northern hemisphere's regular summer sky show.
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