/ / CyberSecurity.ru / / – Every August our planet in its orbit passes through the Perseid meteor shower, which is considered the most powerful of all periodic meteor showers and known as “the August meteor shower.” This year, the peak of the meteor shower will be visible in the evening on Monday. As the astronomers say, the 2013 peak flow will have on Monday night, and the night of Monday to Tuesday. Also good visibility burning meteors can be expected in the evening on Tuesday 13 August.
more of visual meteor stream at this time will give a dark night sky, as the moon is now in the phase of the new moon, and almost no light interference for observation.
Technically speaking, in the area of ??the tail of a meteor shower, our planet will enter early Monday morning, Moscow time, about 3:15 MSK, but the peak flow will be approximately 20 hours after that.
It is known that the Perseid stream is created by residual particles of the comet Swift-Tuttle, which was opened in 1862. This comet makes a complete revolution around the Sun every 130 years. Strictly speaking, the Earth passes twice through the “path” of the residual particles of the comet. The second time it happens in November and then the flow is called the Leonids. In mid-August cometary material enters the atmosphere of our planet at a speed of 214,000 km / h, creating a bright strokes in the night sky.
The last time the Earth and the comet Swift-Tuttle missed more than 20 years ago – in December 1992, that is, the next time a comet on its path stretched again come to us as early as 2122. In 1992, it was possible to nabldat hundreds of meteors per hour strokes, many of which were visible even when the rising or setting sun.
Scientists also say that the comet Swift-Tuttle several atypical orbit flight, which indirectly indicates the fact that she used to be much larger in size. Now the Earth and comet share about 5.1 billion kilometers.
In the upcoming meteor shower, astronomers expect the average activity of meteors in the sky, which is about 1 meteor per minute, but this is under ideal dark conditions, while in the suburbs this figure will be lower, but in the city with night illumination is hardly anything to be seen.
The very first mention of the Perseids is dated 36 year n. e. in the Chinese annals. The Perseids are also frequently mentioned in Chinese, Japanese and Korean chronicles VIII-XI centuries. In Europe, the Perseids are called “Tears of St. Lawrence”, as the festival of St. Lawrence, which takes place in Italy, accounted for the most active period of meteor shower – August 10.
officially considered as the discoverer of the annual Perseid meteor shower is the Belgian Adolphe Quetelet, who reported on this show in August 1835.
first researcher who calculated the number of meteors per hour was Edward Hayes, who set a maximum rate of 160 meteors per hour. Watching Hayes and other researchers around the world have continued almost every year after that. The maximum rate between 37 and 88 per hour to 1858. Interestingly, the rate jumped to 78-102 in 1861.
Perseid meteors were the first, which is associated with a particular comet. During the years 1861-1863 the number of observers have noticed an increase in the August Perseids. In 1863, it recorded 215 such outbreaks per hour. Italian astronomer Giovanni Virginio Schiaparelli calculated the orbit of a Perseid meteoroids, and found that they coincide with the orbit of the comet Swift – Tuttle. Comet Swift – Tuttle opened in 1862, when it passed close to Earth.
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Every August our planet in its orbit passes through the Perseid meteor shower, which is considered the most powerful of all periodic meteor showers and known as “the August meteor shower.” This year, the peak of the meteor shower can be wi … full text
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