Life Cycle of Stars

By Jessica MacDowell

Life Cycle and Human Life Cycle

The life cycle of a star is very similar to the human life cycle. The protostar is the fetus baby. The main sequence is like the infancy through adulthood. Red giant supergiant is the middle age. The white dwarf is the old age death.
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Before a Star is Born

The matter occurring the stars of our galaxy

It is made up of gas and dust

It is found throughout the universe


equilibrium- a state in which opposing or influences are balance

Gravity forces dust. The gravity gets stronger and hotter and becomes a protostar. The birth of a star

main Sequence

fusion- melting things together

The main sequence is fusing hydrogen and helium. Stars spend most of there lives in this phase.

White Dwarf

A white dwarf is the left overs of a small star. When all the hydrogen is burned up it uses helium. When the temperature heats up it becomes a red Giant.

Red Giant

Helium fuses to form carbon. At the end of the stars life the cores temperature rises and causes the star to expand.


The element used is hydrogen

Spectroscopy measures light.

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The inward pull of gravity

the outward of internal gas pressure

Gravity is caused equilibrium

Blue Shifted

Doppler affect

comes closer

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Red Shifted

Doppler affect

moves away


Works Cited

"Astronomy for Kids." : Stars. N.p., n.d. Web. 23 Mar. 2015.

Flickr. Yahoo!, n.d. Web. 23 Mar. 2015.

Redd, Nola Taylor. "What Is a White Dwarf?" N.p., n.d. Web. 23 Mar. 2015.

"Stars - Main Sequence." Main Sequence. N.p., n.d. Web. 23 Mar. 2015.