Giant and Supergiant Stars

Sophia B.

What are Giant and Supergiant Stars?

Giant and Supergiant stars are massive stars that have a much larger radius from other stars in the universe. To make a giant star, a regular star has to convert all the helium in it. When all the helium is converted it turns into a giant star. These stars are luminous stars, super bright.

A photo of a rare Yellow , Red, and Blue Supergiants

Big image

Facts about Giant and Supergiant Stars

The masses of a giant and supergiant star can range from 10-70 solar masses. The color of the stars are based on the temperature of the star. If the star is red then that means it is cold. If the star is blue then it is hot which is the opposite from here on earth.


Rigels are one of the brightest stars in the sky. You can easily tell between a rigel and a regular star. Rigel is the brightest star in the constellation Orion. This star is only 10 million years old while the sun is over 4 billion years old. The rigel has a brightness 47,000 times greater than the sun. In the picture below there is a rigel and a nebulae next to each other, and stars behind it.

Hypergiant Stars

The red hypergiant is one of the biggest stars that people know of. This star is so big that if you took a passenger airplane, and flew around it once, it would take you 1100 years. There are billions of stars out there, and they might even be bigger than this red hypergiant that we just don't know about yet.
The Biggest Stars In The Universe


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