Radius: 7 x 108m
700 thousand km, ~100 Earth Radii
Mass: 2 x 1030 kg
300,000 Earth Masses
Density: 1.4 g/cm3
Similar to Water. Earth average is 5 times more dense
Varies greatly with radius: 150 g/cm3 at the Sun's core!
Temperature: 5780 K (Kelvin Degrees) at Surface
Also varies greatly with radius: 15 million K at core!
|Composition (by Mass):||71%||Hydrogen|
|2%||Other (C, N, O, Mg, Si, Fe, etc)|
How do we know this? We have determined it all by observing Photons from the Sun's surface, Neutrinos from the Sun's interior and detecting Plasma in the Solar Wind.