when you look in the sky and see a star, what is it?

Question

What is a star

Answer 1

It is a large sphere of glowing gas....like the sun, only farther away.

Answer 2

A star is a massive, luminous ball of plasma. Stars group together to form galaxies, and they dominate the visible universe. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth, including daylight. Other stars are visible in the night sky, when they are not outshone by the Sun. A star shines because nuclear fusion in its core releases energy which traverses the star's interior and then radiates into outer space. Without stars, life and most atomic elements present in the Universe would not exist.

Answer 3

A star is a gigantic ball of gas, usually hydrogen and helium. The size of this object is so large that the weight of the gases pressing down on the central core of the ball creates intense heat and nuclear fusion results from the heat and pressure. Hydrogen fuses into helium, but the gas is under such intense pressure that the gases are a molten liquid. In the center of the core heat and pressure is so extreme that the molten gas liquid is almost metallic in consistancy.

The fusion of hydrogen into helium gives off additional intense heat and radiation. The radiation given off ranges from below the visable spectrum all the way up into the region of X Rays and Gamma Rays. We can see the light in the visable spectrum from the star. Other specialized equipment is needed to detect the non-visable radiation.

Our Sun is a star just like most of the stars you see at night.
On a clear, dark night all of the stars you can see with the naked eye are part of the Milky Way Galaxy which has more than 100,000 billion stars in it (exact number unknown). Beyond the Milky Way Galaxy are more galaxies that can be seen with the aid of a telescope. These distant galaxies contain more billions of stars. Some of the galaxies are so densely packed with stars that the galaxies themselves look like a glowing balls of light. Distances from Earth to those distant galaxies are immense, ranging into the hundreds and thousands of light years.

Answer 4

star wars? just joking.
A star is a massive, luminous ball of plasma. Stars group together to form galaxies, and they dominate the visible universe. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth, including daylight. Other stars are visible in the night sky, when they are not outshone by the Sun. A star shines because nuclear fusion in its core releases energy which traverses the star's interior and then radiates into outer space. Without stars, life and most atomic elements present in the Universe would not exist.

Answer 5

Stars are like the Sun which is a G4 classified star. When you look in the sky the "twinkly" ones are stars and the non-twinkly ones are usually planets.

Answer 6

u see the photons released by the stars physical surface many many years back(given by the distance of the star from us in light years from us)...in short u see the star as it used to be long back

Answer 7

the star that you see is probably a sun to planets or other planets millions of light-years away

Answer 8

Ahh Its heavenly.....

After all its an heavenly body right? Well stars are nothing different than sun ( sun is also a star ).
They appear to be beautiful coz of their distance.

EDIT: Technical details are already given. I won't repeat.

Answer 9

Not to put too fine a point on it, a star is a very large (indeed) hydrogen bomb that is exploding! (No foolin'!)

Answer 10

the little points of light can be single stars or whole galixies depending on wich one your looking at.