BIRTH OF STARS

Birth of Stars

Birth of Stars

There are hundreds of billions of stars in the Milky Way alone, young and old, big and small, quiet and violence. But they all started the same way. Let us the birth stars. You can look through these books and educational materials on Amazon.com for more information about the stars. Stars of the big balls of hydrogen and helium, the heat of the same nuclear reactions that power the hydrogen bomb (www.factoidz.com).

When stars are born, they are from the existing gas and dust. This is called the interstellar medium. When the cloud of interstellar matter crosses the spiral arm of the galaxy, he begins to form clots. Gravitational forces within the cluster to their contract, the formation of the protostar lead. Center of the protostar can reach temperatures of several million degrees Celsius. At this high temperature fusion reaction begins. Energy released in this reaction prevents the protostar on the contract. So the star was formed (www.library.thinkquest.org).

The sun to the earth and other planets, a typical middle-aged star. It is based on hydrogen converted to helium in the amount of four million tons per second, which produces large amounts of energy based. When the heat rises by gravity pressure inside the star disappeared and boring envelope of gas and dust, the protostar is formed, finally, the light in the visible spectrum. When the pressure and temperature in the core is sufficiently high (several million Kelvin) are nuclear fusion begins, hydrogen, helium. One of the requirements for this process is that the protostar should have a mass of not less than one-tenth the mass of the sun (www.factoidz.com). Otherwise instead of young stars, it is only the infrared radiation caused by the contraction. This small star, which sends infrared light, is known as "brown dwarfs".

Although there ...