Open Star River.

Донецкое спутниковое телевидение подключение, монтаж, настройка.


цифровое качественное оборудование для спутникового телевидения в донецке

1год гарантии.




программа передач на спутниковое телевидение в донецке .


(широта: 48°, долгота: 37.8°)

Astronomers from the University of California and the Spitzer Science Center California Institute of Technology have discovered a new star structure. This narrow "stream" of stars that stretches in the northern hemisphere of the sky in an arc, the angular size of which is at least 45o. This is a giant arc over the disk of our Milky Way galaxy at a distance of about 76 thousand light years from Earth. However, the naked eye can not see it.This stellar river flows a little south of the bucket Big Dipper. And this stream crosses the star cluster NGC 5466, which consists of 50 thousand stars, and the impression that it is from this cluster flow and spreads in opposite directions. So it actually happens. And this is due to gravitational interaction with the Milky Way. The forces of gravitational attraction of the Milky Way at different ends of the cluster NGC 5466 differ from each other. Because of this difference forces are stretching the star cluster in different directions along a line directed toward the center of the Milky Way.The flow of stars stretches almost a straight line and is approximately 12o to the south of the bright star Arcturus from the constellation Bootes (presented here in the constellation Bootes the figure is near the mountain range).Despite its huge size, the stellar flux had never noticed because of the fact that he lost against the background of the mass of stars forming a disk of the Milky Way. Discovered it only recently in progress to determine the color and brightness of 9 million stars in the project compiling a catalog of stars Sloan Digital Sky Survey. It turned out that part of the stars from the 9 millionth masses are approximately the same distance from Earth, are the same age and nearly the same composition, which is typical for globular clusters. Only a globular cluster has been smeared as a long strip.And although, as mentioned above, this starry river can not be seen with the naked eye (the brightness of these stars in the 3 million times smaller than the brightness of the very dim star, which we can see without binoculars and telescopes), this discovery is very important for understanding the formation processes of our own galaxy. In any case, scientists hope to the parameters of the star stream to determine the mass of dark matter contained in the Milky Way, and the distribution of dark matter (uniformly smeared it on our own galaxy or in the form clots). So the discovery of virtually invisible stellar river can have major consequences.


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