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Life Cycle of a Star

Life Cycle of a Star. Jessica , Nicole, Oriana . Lesson. Today we will talk about the Life Cycle of a Star: How stars are formed Life cycles of different stars. How different stars die We will use an example to show key features of the cycle. How to read and understand the HR diagram.

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Life Cycle of a Star

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  1. Life Cycle of a Star Jessica , Nicole, Oriana

  2. Lesson • Today we will talk about the Life Cycle of a Star: • How stars are formed • Life cycles of different stars. • How different stars die • We will use an example to show key features of the cycle. • How to read and understand the HR diagram.

  3. Red Star • Smallest of all the stars • Most common star • Longest life span • Dimmest star • Coolest star

  4. Yellow Star • Second most common star • Our Sun is a yellow star • Average • Lifespan • luminosity • Temperature

  5. White Star • Larger, less common star • Shorter lifespan • Ends in a supernova • Brighter and hotter

  6. Blue Star • Hottest and brightest star • Shortest life span • Least common • Ends in a supernova and becomes a black hole

  7. The HR Diagram

  8. Life Cycle of a star • Nebula -> protostar-> main sequence-> red giant-> white dwarf OR • Nebula -> protostar-> main sequence->red supergiant-> supernova-> black hole

  9. Citation • http://apod.nasa.gov/apod/ap121220.html • http://www.rootstown.sparcc.org/mattjust/h-r-diagram\ • http://www.nasa.gov/mission_pages/sunearth/news/News111312-m6flare.html • http://www.armaghplanet.com/blog/wp-content/uploads/2012/04/Image-of-Sirius_A_and_B.jpg • http://onlyhdwallpapers.com/space/blue-sun-star-desktop-hd-wallpaper-87838/ • http://fuzzyblobsmk.blogspot.com/2011/08/portrait-of-beauty.html

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