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How a Star is Born, Lives, and Dies<br />Matt Frisco<br />
Pre-Stellar Gas Clouds<br />Hydrogen and Helium are the most abundant gasses in the Universe.<br />They form a cloud due t...
Functions of a Gas Cloud <br />It gets bigger and starts to spin.<br />Gravity draws more gas to it.<br />The gasses are h...
A Star is Born<br />The cloud gets smaller, denser, and hotter.<br />Eventually hydrogen begins to fuse.<br />2 hydrogen a...
Early Days of a Star<br />Fusion continues in the core where its hottest.<br />The size depends on how much gas was in the...
Classifying Stars<br />Stars are many colors, sizes, and  temperatures.<br />Characteristics of stars are dependant of eac...
Examples of Star Color<br />Stars can have many colors<br />The most common are yellow and white<br />Blue are biggest and...
The Hertzsprung–Russell Diagram <br />The HR Diagram groups stars.<br />The diagram was created in 1910.<br />The diagram ...
H-R Diagram Example<br />
What the Diagram Measures<br />The sides measure the brightness, spectral class, temperature, and magnitude (size relative...
Types of Stars<br />The curve shape through the middle are the main sequence stars.<br />The bottom left are white dwarfs....
Main Sequence Stars<br />Most stars are currently main  sequence.<br />Main sequence stars are many colors and temperature...
Other Stars<br />Some stars live their whole lives off the main sequence.<br />Some jump on and off.<br />Some special sta...
Lives of Stars<br />Stars live for 5 million-10 billion years.<br />Stars turn mass into energy.<br />Stars fuse all eleme...
Our Star<br />The name of the Sun is Sol<br />Sol is 4.6 billion years old <br />It will live another 5 billion years<br /...
Death of Stars<br />When the star cannot fuse anymore it dies<br />Small stars dim down and off<br />Super-giants explode ...
References<br />GLCE E5.2F<br />-http://www.michigan.gov/documents/EARTHMMC_168211_7.pdf<br />Web Resources<br />Oracle Th...
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Transcript of "How a star is born, lives,"

  1. 1. How a Star is Born, Lives, and Dies<br />Matt Frisco<br />
  2. 2. Pre-Stellar Gas Clouds<br />Hydrogen and Helium are the most abundant gasses in the Universe.<br />They form a cloud due to gravity.<br />Example of a gas cloud.<br />
  3. 3. Functions of a Gas Cloud <br />It gets bigger and starts to spin.<br />Gravity draws more gas to it.<br />The gasses are hydrogen, helium, and lithium.<br />Spinning causes the cloud to condense.<br />It spins faster and gets denser until it reaches critical mass.<br />
  4. 4. A Star is Born<br />The cloud gets smaller, denser, and hotter.<br />Eventually hydrogen begins to fuse.<br />2 hydrogen atoms become 1 helium atom.<br />This process releases light and heat energy.<br />Then the star lights up.<br />
  5. 5. Early Days of a Star<br />Fusion continues in the core where its hottest.<br />The size depends on how much gas was in the cloud.<br />Temperature depends on how much gas is fusing.<br />Bigger hotter stars fuse more.<br />Smaller cooler stars fuse less. <br />
  6. 6. Classifying Stars<br />Stars are many colors, sizes, and temperatures.<br />Characteristics of stars are dependant of each other.<br />For example: Big stars are hotter and bluer. <br />
  7. 7. Examples of Star Color<br />Stars can have many colors<br />The most common are yellow and white<br />Blue are biggest and hottest<br />Red and Orange are average <br />
  8. 8. The Hertzsprung–Russell Diagram <br />The HR Diagram groups stars.<br />The diagram was created in 1910.<br />The diagram tells us everything about stars.<br />All the information helps us understand a stars lifespan.<br />
  9. 9. H-R Diagram Example<br />
  10. 10. What the Diagram Measures<br />The sides measure the brightness, spectral class, temperature, and magnitude (size relative to our sun).<br />The dots represent the stars.<br />The colors of the dots are the colors of the stars.<br />All of this information helps us understand a stars lifespan.<br />
  11. 11. Types of Stars<br />The curve shape through the middle are the main sequence stars.<br />The bottom left are white dwarfs.<br />The top right are red giants.<br />The top left are blue super-giants.<br />
  12. 12. Main Sequence Stars<br />Most stars are currently main sequence.<br />Main sequence stars are many colors and temperatures.<br />Main sequence stars fuse hydrogen and helium and other light gasses.<br />Stars jump in and out of the main sequence. <br />
  13. 13. Other Stars<br />Some stars live their whole lives off the main sequence.<br />Some jump on and off.<br />Some special stars are blue giants and white dwarfs.<br />Blue giants are big, bright, and hot.<br />White dwarfs are small, dim. and cool.<br />Blue giants don’t live long and white dwarfs live long.<br />
  14. 14. Lives of Stars<br />Stars live for 5 million-10 billion years.<br />Stars turn mass into energy.<br />Stars fuse all elements up to Iron; but not heavier.<br />Stars and nebula make up 98 percent of all matter. <br />Life wouldn’t be possible without stars.<br />Stars are usually at least 3 light years from each other.<br />
  15. 15. Our Star<br />The name of the Sun is Sol<br />Sol is 4.6 billion years old <br />It will live another 5 billion years<br />It takes 8 minutes for light to reach Earth <br />Sol can fit 1million Earths inside of it<br />
  16. 16. Death of Stars<br />When the star cannot fuse anymore it dies<br />Small stars dim down and off<br />Super-giants explode in a supernova<br />After the supernova it collapses into a black hole<br />Black holes are small and dense<br />
  17. 17. References<br />GLCE E5.2F<br />-http://www.michigan.gov/documents/EARTHMMC_168211_7.pdf<br />Web Resources<br />Oracle ThinkQuesthttp://library.thinkquest.org/J002231F/Sun/factsaboutthesun.htm<br />National Geographic http://science.nationalgeographic.com/science/space/universe/stars-article.html<br />Universe Today <br /> http://www.universetoday.com/25145/interesting-facts-about-stars/<br />Picture references<br />Published by Tonynetone, Star Colors (Self-given description), Taken Date August 21, 2010 (no upload date) via flickr, creative commons attribution license.<br />Published by NASA Goddard Photo and Video, Hubble Reveals Heart of Lagoon Nebula, Taken Date July 15, 2010 (no upload date) via flickr, creative commons attribution license. <br />Published by NASA Goddard Photo and Video, Sun’s Surface May 18, 2010, Uploaded June 21, 2010 via flickr, creative commons attribution license.<br />Published by Wikimedia Commons, H-R Diagram afr.GIF uploaded May 16 2007, via Wikimedia Commons, Creative Commons Attribution Share-Alike License <br />
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