A Cross-section of the Sun
Mass 1.989x1030 kg (332 946 Earth masses)

Radius 6.955x108 m (109 Earth radii)

Volume 1.412x1027 m3 (1.3 million Earths)

Density (center) 151 300 kgm-3

(mean) 1 409 kgm-3

Pressure (center) 2.334x1011 bars

(photosphere) 0.0001 bar

Temperature (center) 15.6 million degrees Kelvin

(photosphere) 5 780 degrees Kelvin

(corona) 2-3 million degrees Kelvin

Luminosity 3.854x1026 Joule s-1

Solar constant 1 366 W m-2

Age 4.55 billion years

Principal chemical components Hydrogen 92.1 percent

Helium 7.8 percent

All others 0.1 percent