Stars
A star is a giant ball of gas and dust that are also heat and light. If gas is the recording star, dies. A star can live for millions or even billions of years depending on its size. Each galaxy in the universe is composed of billions of stars.

Q: What is a proto-star?
A star is born in clouds of dust and gas, mainly hydrogen. More and more gas is determined by the gravity of a cloud. After a while the time, the cloud begins to rotate. That makes the battle of the atoms of gas in other high-speed, a lot of heat. As the cloud is a nuclear reaction takes place hotter there, and the clouds begin to shine. This cloud proto brilliant star. The proto-star continues to contract until it becomes a star.

D. How long a star lives?
AA bright star for millions of years, until the gas in the outer layer begins to cool, and hydrogen in the core is slowly being used. The cold layer begins to glow red. If this happens, the star is a red giant. The red giant to lose its shine, until it was lost. Depending on the size, a red giant, in May, died in an explosion, compressed to a black hole or a white dwarf.

Q: What is a white dwarf?
AA small star is usually reduced to a dense white dwarf. The size of a white dwarf is comparable to the size of the earth. There are many white dwarfs in our galaxy, but are too small to see. Sirius B is one of them.

D. What is a supernova?
AA is the supernova explosion of a large meeting at which a star is destroyed. After the explosion, the light is very bright for several days. Supernova appears to be one billion times brighter than the sun. Sometimes, a supernova explosion can be used for weeks or months. Supernovae occur, often in distant galaxies. The most recent supernova in the Milky Way was in 1604. E ‘was designed by the famous astronomer Johannes Kepler. The brightest supernova recorded so far is 1993J in the galaxy M81. E ‘was published on 26 March 1993. But because the stars are so distant from us, we see a supernova explosion that occurs much later.

Q: What is a black hole?
Black hole is a very compact objects that were once massive stars. Sometimes it’s a big star begins to fall until it is smaller than an atom. This is called a black hole. The black hole is called the “singularity”.
The proximity of this point of gravity is so strong that any object, which is also near the black hole, it was found. The light is sucked in, and that is why we can not see a black hole. Scientists special instruments to detect the presence of a black hole. The impact on nearby objects.

Black hole
No one can see a black hole, as the strength of gravity can also be used with the light, let alone anything else. This is an artist impression, that a black hole in May.

Celestial Pictures
Draw imaginary lines between the stars in the sky, we see that the shapes of animals or household items. You can make a crab, a dragon, a bear or otherwise. These stars are the constellation models. Astronomers have 88 constellations. The best known are the Big Dipper, Little Bear and Orion, also known as the hunter. Constellations as a character from Greek mythology and the 12 signs of the zodiac.

Dwarf Stars
If the stars at the end of his life, the lights begin to die, so that dwarf stars, owing to the attraction of matter in the interior.

1. How many stars are there in the world?
We know that approximately 70 sextillion (7, followed by 22 zeros) stars in the universe. However, we can only see about 8,000 of them.

2. What are the giants and dwarfs, stars?
Invited as a scientist or dwarf stars by their giant size. The sun is a dwarf star. Supergiants stars – the highest in the world – are at least 400 times larger than on Sunday.

3. A group of stars?
The stars are usually in groups called clusters. Some groups are composed of many stars packed, while other stars are packed tightly together to form a group.

4. What kind of stars are binary stars?
Pairs of stars are binary stars. Binary stars orbit the center of gravity.

5. What is the brightest star known?
The turret-Star is the brightest star in the known universe. This is 10 million times brighter than the sun.

gas giants -- Jupiter, Saturn, Uranus, and Neptune are often called gas giants. The four giant planets are comprised mostly of an outer layer of molecular hydrogen and . life cycles of stars grades 912 page 1 -- Eventually, enough gas and dust has been collected into a giant ball that, at nuclear fusion begins and the ball of gas and dust starts to glow. . stellar evolution reference library redorbit -- A star starts out as an enormous cloud of gas and dust many light-years across. At this point, nuclear fusion begins and the ball of gas and dust starts to glow. . life cycle of a star power point -- Ball of gas and dust that is pulled together by gravity. Nuclear fusion starts as gas Red giant star that expands and cools once is loses all its hydrogen . star body used process earth life characteristics -- Drifting through this region are vast, dark clouds of gas and dust. Nebula: Cloud of interstellar gas and dust. Neutron star: Extremely dense, compact, . 

gas giants -- cool enough, these gas clumps quickly contract and collapse into gas-giant protoplanets which attract dust gas giant around 10-million-year- old Sol-type star, as imagined by Pyle . star body used process earth life characteristics form energy -- Red giant: Stage in which an average-sized star spends the final 10 percent of brown dwarf, a small, dark, cool ball of dust and gas that never quite becomes a star.. starsintro -- Some of the gas condenses into molecules and dust. There may be so much that the star can be buried are so strong during the giant stage of a star's compressed into a tight ball of . 

Related Search: what is origin of the sun?, skytellers about stars, how are stars born?, group007, chapter 9,