Astronomy and Space


What is the sun made of?

The sun is an incandescent ball of gases. Its mass is 1.8 x 1027 tons or 1.8 octillion tons (a mass 330,000 times as great as Earth).

Element Percent of Mass
Hydrogen 73.46
Helium 24.85
Oxygen 0.77
Carbon 0.29
Iron 0.16
Neon 0.12
Nitrogen 0.09
Silicon 0.07
Magnesium 0.05
Sulfur 0.04
Other 0.10


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