Twinkle, twinkle little star, how I wonder what you are?......

What is Constellation

When you go outside on a dark clear night, looke up into the night sky and see hundreds if not thousands of stars randomly spread across the sky. How do you tell one from another? The answers is you learn the Comstellation. At night, you can see many glittering objects in the sky. These objects are called star. A group of stars that form pattern is called a Constellation. We can see millioons of dots of light ib thr night sky. Most of these are stars. Observe the patterns formed by these are stars. Do you know how important they are?

Sunday, April 10, 2011

SUPER GIANT STAR

A super giant star is the exact same thing as a giant star only much bigger. Remember that as a star gets older it begins to run out of fuel. As the star runs out of fuel, it will start to burn out.
Just like the sun-sized stars, blue giant stars also begin to burn helium.  As they do these stars get much hotter. This extra heat makes the outside of an old blue giant  star stretch out further. Remember how hot air balloons stretch out as the air in them gets hotter?
The only difference between Giant Stars and Super Giant Stars is their size. Super Giant Stars are much bigger.  If the Sun were replaced by a super giant star, it would extend from the center of our Solar System almost all the way out to Uranus.
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