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The Sun Cheat Sheet (DRAFT) by

This is a draft cheat sheet. It is a work in progress and is not finished yet.

Compos­ition of the Sun

device used to break sun's light into spectrum
dark lines
gases in outer layers absorb wavele­ngths of light
temper­ature = which gases produce visible lines
temper­ature, density, pressure
the sun
75% hydrogen
Nuclear Fusion


The sun is gas, so magnetic field becomes twisted like rubber bands
If it is wound too fast, they burst
2 sun spots (N&S pole of magnet)
When 2 spots merge into 1, solar flare sends charged particles toward Earth
Solar wind arrives in 20 hours disrupting satellites and creating auroras
sunspots have an 11 year cycle

Sun's Energy

Nuclear Fusion
the proton cycle
2 groups of 3 protons
collisions result in 2 molecules of He3
He4 is less dense than the 4 protons
400 million tons per second * 90,000­,00­0,000
sun burns all energy ever used on Earth every second

Sun Facts

the sun is the size of an average star
the sun is 332,000 times larger than the sun
74% hydrogen
25% helium
core temper­ature: 15,000­,000K
surface temp: 5,800K
Burns hydrogen at 400 million tons/s­econd
At 5 billion years, the sun is at half-life

The Layers of the Sun

inner core 15,000­,000C
Hydrogen and Helium (no electrons) nuclear fusion`
radioative 2,000,000 -7,000­,000C
H & He (no elecct­rons) energy dispense
convective 2,000,000C
H & He (stable w/ electron) energy absorbed
Photos­phere 6,000C
less dense, energy shoots out as photons of light when electrons go in an energy level
Chromo­sphere 4,000 - 50,000C
Atmosphere of the sun (6,000 C - 20,000 C)
Corona >1,­000,000 C
The outer most layer, heats up to 1,000,000 C
Sunspots 3,800C