The Sun and Stars - University of Arizona
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The Sun and the Stars () The Sun and Stars September 9, 2013 1/5
Transcript of The Sun and Stars - University of Arizona
The Sun and the Stars
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How big is the sun?
Diameter of 864,400 miles! (Earth’s diameter is about 8000 miles)
1,300,000 Earths could fit in the sun!
The sun’s mass is about 4400000000000000000000000000000 lbs(99.8% of all the mass in the solar system!)
The sun is a mid-sized star
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What is the sun?
91% Hydrogen, and 9%Helium
mostly plasma
constant NUCLEARFUSION reactions convertHelium to Hydrogen, makingheat and light!
temperatures reach27, 000, 000◦F in core, and10, 000◦F on the surface
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History of the Universe
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What do we think will happen to the sun?
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