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The life of stars

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The life of stars. The life of stars. The Interstellar Medium. What is a light year? How many miles in a light year? Why is it called a light year? Just how fast is light?. Constellation of Orion. M42 – The Great Orion Nebula. Mass and weight. What is weight? What is mass?.

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slide1
The life of stars

The life of stars

slide3
What is a light year?

How many miles in a light year?

Why is it called a light year?

Just how fast is light?

slide4
Constellation of

Orion

M42 – The Great Orion

Nebula

slide11
Mass and weight

What is weight?

What is mass?

slide15
Hydrogen atom

1 Proton

2 Protons &

2 Neutrons

Helium atom

slide17
All stars will swell dramatically as they run out of fuel for nuclear fusion.
  • This pulsation often sheds gases from the star.
slide18
The structure of a highly evolved star of 20 solar masses.

The letters H, He, C, O, Ne, Mg, Si, S, and Fe are the chemical symbols for hydrogen, helium, carbon, oxygen, neon, magnesium, silicon, sulfur, and iron.

(The star's core and shells are not drawn to scale.)

slide44
Websites for more information

http://www.milky-way.com/gb/sevol.htm

http://sunshine.chpc.utah.edu/labs/star_life/starlife_main.html

http://www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html

http://cassfos02.ucsd.edu/public/tutorial/StevI.html

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