(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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Vindication "The possible return of Comet Swift-Tuttle, the parent of the Perseid meteor stream, focused an unusual amount of attention on this year's Perseid shower.
The Perseid meteors, shed by comet Swift-Tuttle, stage their show every August and are among the brightest of all shooting stars.
The Perseid meteor shower occurs every July and August as the Earth passes debris from the Swift-Tuttle comet.
The Perseids were the first meteor shower to be linked to a comet when astronomer Giovanni Schiaparelli spotted their association with Swift-Tuttle in 1862.
Named after the Perseus constellation, which is the point from which they appear to come from in the night sky, the Perseids are pieces of debris from the tail of Comet Swift-Tuttle that vaporise in our atmosphere - though usually tiny they generate intense light due to their colossal speeds of up to 160,000mph.
He said that these meteors are the dusty debris of Comet Swift-Tuttle that approaches the Sun once every 120 years, and when it travels away, it leaves debris and gases behind.
During the shower, debris from the comet litters the earth orbit, with the greatest density of rubble occurring only after the first week of August, when fragments of Comet Swift-Tuttle crash into the earth's atmosphere at 210,000km/hr.
The yearly Perseids meteor shower occurs when particles of the Swift-Tuttle comet enter the earth at the huge velocity of 58 kilometres per second.
The bits and pieces from Comet Swift-Tuttle slam into the Earth's upper atmosphere at some 130,000 miles (210,000 km) per hour, lighting up the night-time with fast-moving Perseid meteors.
The shower is made up of debris falling from the tail of comet Swift-Tuttle, which then bursts into the Earth's atmosphere.
Named after the Perseus constellation, Perseids are pieces of debris from the tail of Comet Swift-Tuttle hurled into space.
These shooting stars, as magical as they may appear to be magical, are caused when the Earth passes through a stream, or trail, of dust and rocks -- meteoroids -- left behind by the comet Swift-Tuttle as it orbits the sun.