Comet Swift-Tuttle (formally designated as 109P/Swift-Tuttle) was independently discovered by Lewis Swift on July 16 1862 and by Horace Parnell Tuttle on July 19 1862.
The comet made a return appearance in 1992, when it was rediscovered by Japanese astronomer Tsuruhiko Kiuchi .
It is the parent body of the Perseid meteor shower.