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Samantha Wingate

The Life of a Star. Samantha Wingate. http://en.wikipedia.org/wiki/File:The_life_of_Sun-like_stars.jpg. What is a Star?. A star is a huge sphere of very hot glowing gas. When stars are grouped together we call them constellations. The big dipper is constellation that we see often. .

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Samantha Wingate

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  1. The Life of a Star Samantha Wingate http://en.wikipedia.org/wiki/File:The_life_of_Sun-like_stars.jpg

  2. What is a Star? • A star is a huge sphere of very hot glowing gas. • When stars are grouped together we call them constellations. • The big dipper is constellation that we see often. http://en.wikipedia.org/wiki/File:Big_dipper_from_the_kalalau_lookout_at_the_kokee_state_park_in_hawaii.jpg

  3. The Sun • The Sun is the only star in our solar system • All eight planets, comets, and an asteroid belt, revolve around the Sun. • The Sun is a yellow, medium sized star. http://en.wikipedia.org/wiki/File:Yohkohimage.gif

  4. Classifying Stars • Stars are classified according to their temperature and brightness. • Hot Stars are Blue or White • Cooler Stars are Red or Orange

  5. Classifying Stars Cont… • A young star is called a dwarf star • They can be colored red, yellow, or white. • Our Sun is a yellow dwarf • Older Stars are called Supergiants • They can be colored red or blue.

  6. The Timeline of a Star • Our Sun is an average star. The chart below shows the lifecycle of our sun over billions of years. http://en.wikipedia.org/wiki/File:Solar_Life_Cycle.svg

  7. How Stars Are Born • Star are formed from giant clouds of dust and gas. • Then, from gravity, the cloud collapses into a rotating gaseous ball. • Once the new star gets hot enough it will begin to create energy from a process called nuclear fission. • This created energy allows the star to glow for billions of years.

  8. Where Stars are Born • The Eagle Nebula http://en.wikipedia.org/wiki/File:Eagle_nebula_pillars.jpg

  9. The Death of Stars • A Star dies when it runs out of gases to burn. • The Star will first expand into a red, super giant. http://en.wikipedia.org/wiki/File:Betelgeuse_star_%28Hubble%29.jpg

  10. The Death of Stars Cont… • Then the Star will collapse and explode. • This takes billions of years. • The size of the star determines how long it’s life is. • The bigger the star the shorter the life.

  11. After a Star Explodes… • The Crab Nebula http://en.wikipedia.org/wiki/File:Crab_Nebula.jpg

  12. References • Picture References • Text References http://en.wikipedia.org/wiki/File:The_life_of_Sun-like_stars.jpg http://en.wikipedia.org/wiki/File:Big_dipper_from_the_kalalau_lookout_at_the_kokee_state_park_in_hawaii.jpg http://en.wikipedia.org/wiki/File:Solar_Life_Cycle.svg http://en.wikipedia.org/wiki/File:Yohkohimage.gif http://en.wikipedia.org/wiki/File:Eagle_nebula_pillars.jpg http://en.wikipedia.org/wiki/File:Crab_Nebula.jpg http://en.wikipedia.org/wiki/File:Betelgeuse_star_%28Hubble%29.jpg "Ask an Astronomer for kids!." Ask an Astronomer for kids!. Web. 25 Feb 2010. . <http://coolcosmos.ipac.caltech.edu/cosmic_kids/AskKids/star.shtml>. "Star Types." Zoom Astronomy. 2010. Enchanted Learning, Web. 1 Mar 2010. <http://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml>.

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