White Dwarf and Red Giant

By: Kennedy and Kameron

Introduction

Red Giants and White Dwarfs are both stars, and are the last stages of a sun. The first stage after a sun is a Red Giant, then later comes a White Dwarf. They are both some of the brightest stars in the night sky. Even though they are close to being the same thing they are different in many ways.



White Dwarf

White Dwarfs,also known as Degenerate Dwarf, are a small very dense star that is normally the size of a plant. This star if formed when a low mass star has exhausted all of its nuclear fuel.

A White Dwarf is made up mainly of oxygen and carbon. Its the last stage a sun goes through before it completely dies.

A white dwarf is also one of the brightest stars in the night sky. White dwarfs are sometimes found in binary systems.

Red Giant

A red giant star is a dying star in the last stages of stellar evolution. In only a few billion years our sun will eventually turn into a red giant.

Red Giant stars can reach the sizes of 100 million to 1 billion kilometers in diameter, or 62 million to 621 million miles. That is 100 to 1,000 times our sun.

Red Giants temperature is actually cooler than a suns temperature. The normal temperature of a Red Giant reaches only 4,000 to 5,800 degrees Fahrenheit, only about half as hot as the sun.


Comparison

One comparison is that they are both stars out of stellar evolution. Another is that they are both large in size. Also they both give of solar winds, this is because they once were a sun.




Contrast

They may be the same in many ways, but they are also different too. One way in which they are different is that a red giant is that even though they are both large in size, a red giant is way bigger. Also they are very different in temperature a red giant is much hotter than a white dwarf. Also a white dwarf is more like a sun (just not as hot). Another difference is that a red giant is a big ball of gases just like the sun but much bigger, and a white dwarf is just the core of a star.



Conclusion

In conclusion white dwarfs and red giants are both similar yet different at the same time. They help us learn more a out our sun, and what will happen to our solar system in about five billion years. One things for sure are universe wouldn't be the same with out them.

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