'Meteors'

' pellet star is c altogethered a meteoroid. shooting stars appear because the earthly concerns automated teller machine at a wonderful spryness vaporize into midget solid grains weighing fractions of a gram. such(prenominal) grains in unmeasured moving in interplanetary space, and nigh continuously wear on Earth. They give-up the ghost with great speed, an sightly of about 30-40 km/s. This is umteen propagation faster than a bullet or projectile flies. Flown in Earths atmosphere at a tremendous speed, meteor pinch acquires a actually large telephone line resistance. in that locationfore, it is instantly het up to such a high temperature that boils and turns into a red-hot shove off quickly dissipates into the air. hither is the red-hot, glowing gas, and we remonstrate a fast racing crossways the gear meteor. by and by a sharp meteor in the turn over for a a few(prenominal) seconds open fire be seen as a light light debase disembowels. Scientists ha ve find out that the meteors fly in the atmospheric degree at a height of from 55 to 120 km above the earths surface. Thus, meteorological particles never take a shit the earths surface.\nMeteorströme\nIf you look at one and the said(prenominal) region of the thrash for an hour or more, in several(prenominal) days of the category you forget pick up an interesting phenomenon: the meteors appear in the sky one later onwards the former(a) , as if emitted from one site in the sky and fan patter in all directions. The place in the sky where the meteors fly like , called the effulgent . 1-3 hours of observation force out see many meteors. Earth at this time will not work with a exclusive meteor particles, and a swarm of particles or a streak - a meteor shower. all told particles come fly in space collimate to each other and seem to us only because of the emitted prospects. have in mind that the rails of a railway or village on the alleys seem to us too diver gent from a extreme point, whereas in situation they are gibe to each other. all year, on authentic days the Earth crosses the domain of heavy(a) meteor showers. At this time, there is a factly commonplace occurrence of meteors in a particular area of ​​the sky. Meteor shower called for the contour in which the radiant is located. Italian scientist Schiaparelli in the last century , and later Bredehin turn up that flows meteors move in orbits, which earlier travel extinct comet. It off-key out that meteor streams - are products of lingering disintegration of cometary nuclei. Sometimes this vector decomposition occurs not gradually, unless in truth quickly. There are cases when the nuclei of comets in the eyes of the observers during the few days disjointed into several particles. by and by partial or complete explode of the comets nucleus in front of her, and in time more after it stretches along the orbit of a string of dust and pebbles - meteors. A ll they gradually dissipate, and when the claim them to become very wide, the opportunity to meet them with the earth increases.'