• General Information on the Sun
  Find information on the big ole star we call the Sun.

• Observing the Sun
  How to look (indirectly) at the Sun.

• Sun Eclipses
  When the next solar eclipse is!

SIZE: 865,000 miles (1,392,000 km). About 109 times the size of Earth.

VOLUME & MASS: 1,300,000 times the volume of Earth. 333,000 times the mass of Earth. Accounts for 99.8% of the solar system's mass.

SURFACE TEMPERATURE: 10,000 degrees Fahrenheit (5500 degrees Celsius)

CENTER TEMPERATURE: 27,000,000 degrees Fahrenheit (15,000,000 degrees Celsius)

AGE: 4,600,000,000 years

ONE ROTATION: About 1 month

ONE REVOLUTION AROUND THE SYSTEM: About 200 million years

COMPOSITION: Mainly hydrogen (approx. 75%) and helium (approx. 25%) with 70 other elements making up the rest.