What is a Star and how are they formed?

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Presentation transcript:

What is a Star and how are they formed?

Some pictures of Stars

Our Star, the Sun

Now Read The Life Cycle of a Star

Nebulae

Protostar

Our Sun

Red Giant

A Dwarf?

White Dwarf

Black Dwarf

Sizes of Stars

Sizes of Stars On the bottom right are Arcturus (orange giant), Rigel (blue giant), Sirius A (blue dwarf) and the Sun (yellow dwarf). Meanwhile on the left at the top the Sun is shown blown up and compared with Proxima Centauri (a red dwarf) and Sirius B (a white dwarf).

Pictures Pictures were found at the links below: http://www.nasa.gov http://www.godandscience.org/love/solarsystem.html http://www.fas.org/irp/imint/docs/rst/Sect20/A5.html http://disney.go.com/vault/archives/characters/sevendwarfs/ sevendwarfs.html http://library.thinkquest.org/3103/index.html http://www.astro.psu.edu/users/saez/Class/class.html http://cse.ssl.berkeley.edu/segwayed/lessons/startemp/l6.htm

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