Density per solar radius in the
Dalsgaard model, based on the ideal gas laws, with gravity pulling in, and with heat from nuclear fusion in the core generating the hydrostatic pressure that pushes back out. The X axis shows the decimal of the solar radius starting from the center, and the percentage of the solar volume, starting from the surface. The Y axis shows g/cm
3. The densities of liquid platinum, iron, helium, and hydrogen are shown for reference. The average density of the Sun is 10
0.15 = 1.408 g/cm
3 = 1408 kg/m
3.