Friday, July 1, 2011

Stream of falling stars

In addition, there are many other weak flows. Observations of these remarkable events have shown that the way the individual stars of a stream crossed a certain point of the sky, called the point of radiation, or simply radiant: the flow or proceeds from that point or whether it found the extended backward direction of falling stars. These points do not change their position, not only for one night, but even for many years. Explain these phenomena can only be as follows: meteors are visible continuously in the same night, belong to the stream, which consists of a large number of small bodies, all of them revolve around the sun in the same general path that crosses Earth's orbit at the point where sometimes Earth Day appearance in the stream, she breaks the last one, and part of small celestial bodies, under the influence of gravity, falling onto its surface. As mentioned above, the Perseids (9 - 13 August) and the Leonids (13 - 14 November), among all the stellar flux reaching the earth, are the strongest. However, not every year that they are the same; Perseids appear at the maximum of once every 108 years and keep it unchanged for 20 - 30 years. Even more startling change in the strength of Leonids. The above description was made of the case, which was observed near Humboldt Kumano. After that, the night of 12 on November 13, 1833 Olmsted and Palmer was observed in S. America, about Nyugevena fireballs, which, like the missiles flew from one point of the sky, there were so many that they fell to the ground like snow flakes and all the sky was on fire; phenomenon lasted 9 hours, on a rough calculation at this time fell more than a quarter of a million stars. But not every year that fall Leonid manifested with such force, the collected observations show that the maximum of their repeated after 33V4 years, ie three times in a century. Based on the precise study of all the data it was possible to predict the emergence of a strong flow on the night of 13 to 14 November 1866, and indeed at this time the flow was in all its majestic beauty. This periodic repetition of the strong flows suggests that the cosmic bodies that make them, are distributed unevenly along the way and especially the densely crowded in certain places. Correct repetition of their maxima to determine the time during which the stream makes its way. For Leonid rate is currently 33.25 years. We are aware of the circulation of meteors, their direction, speed (on how to determine the past, we can not talk in depth), Lastly, the focus of their journey, which houses the Sun.

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