单词 | swift-tuttle |
释义 | Swift-TuttleSwift–Tuttle(swift tut-'l) (1737 II; 1862 III; 1992 t) A major comet that was independently discovered in 1862 by Lewis Swift and Horace Tuttle. It is the parent of the Perseid meteoroid stream, which has a mass of well over 1014 kg. The comet has an orbital inclination of 113° and a period of around 128 years. |
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