In the fall of 2020, after Amateur astronomers Vitaly Nevsky and Artem Novichonok first observed the comet ISON, astronomers had expected that she would become a “Great comet” − a rare visitor, perhaps the brightest comet of the twenty-first century.
Alas, severely battered during the close approach to the Sun in November of this year, ISON no longer promises such a bright future. To the naked eye from the Ground to see it would be impossible − but hopes not worth it to lose. Somewhere in the dark depths of space, probably unnoticed by anyone else is racing the comet, which will deserve the attention and present us with an unforgettable sight. This has always been the Large comets appear about once a decade, and every century one of them was especially bright.
We will tell you about these “comets of the century”, since the sixteenth century. It is interesting that they flew as a rule, in the second half of your century, and has had an average of once every 97 years. Given this, we can calculate that if the comet of Ikeya-Seki (C/1965 S1) visited the Earth in 1965, following a visitor, you can wait until 2029.
However, to predict what particular impossible: a Big comet can appear quite unexpectedly, at almost any time. The message we may hear tomorrow.
The origin of the solar system
The sun and the solar system was formed about 4.5 billion years ago. The solar system originated from a cloud, composed of gas and dust particles moving. Under the influence of its weight of it formed a disk in the center of which formed the Sun .
Gradually within the disk began to form solid materials. They faced each other, whereby a large celestial body. Their size corresponds to the existing planets. Inside the nebulae, where the temperature was high enough to form rocky planets. Far from the center formed the giant planets, they contain a large amount of ice, and they were surrounded by a thick layer of gas.
Within the Solar system the temperature even higher, and planets formed from rocky debris of the solar nebula. They are in contact with each other, forming a large celestial body. They attract each other by virtue of the power of the law of gravity and give birth to planets of terrestrial group. The atmosphere of the Earth and Venus, the largest among them, tight.
The atmosphere of Mars, a smaller planet is less dense, and mercury. the smallest planet of this group, it is very sparse compared to earth is not readily available. Continue reading
Halley’s comet is the only short-period comet that is clearly visible to the naked eye
Halley’s comet is the most popular of comets. It rotates around the Sun with a period of 74 to 79 years in highly elliptical orbit. During the appearance of the comet in 1835 with the help of spectral analysis it was found that the composition of cometary atmospheres observed molecular bands of CYANOGEN, carbon monoxide and other compounds. So quickly spread rumors about poisoning the earth’s atmosphere hazardous to human health toxic cometary gases.
As predicted by astronomers, may 19, 1910 the Earth “collided” with the tail of Halley’s comet. However, even the most sensitive instruments have not detected any unusual phenomena in the Earth’s atmosphere, which could uniquely associate with this event. So the wave of fear that swept through many countries in may 1910, had under itself no soil.
After passing through the tail of Halley’s comet, the Earth appeared as a kind of probe. It should be noted that the Earth has been repeatedly passed through the tails of comets, and the effect was always the same – no influence on processes in the earth’s atmosphere substance of different tails of comets were not provided. Continue reading