Heart of the Sun

Amazing Facts about the Sun:

Average distance from Earth   93 million miles
Time for light from the sun to reach the Earth   About 8 minutes to reach the Earth
Diameter of the sun   About 865,000 miles. (The diameter of earth at the equator is approximately 8000 miles, so the diameter of the sun is 108 times greater than the diameter of Earth.) If the sun were hollow, it could hold 1,300,000 Earths.
Age of the sun   4.6 billion years
Expected lifetime of the sun   Another 5 billion years
Mass of the sun   About 2 trillion, trillion, trillion tons; if it were possible to clump all the planets together, the sun's mass would be 750 times larger than all the planets together.
Surface temperature of sun   About 11,000 degrees fahrenheit
Core temperature of sun   About 27 million degrees fahrenheit (which is enough to sustain nuclear reactions)
Composition of sun   At least 94% Hydrogen; remainder is mostly helium; with traces of other elements.
Rotation period   At the equator: 25 Earth Days
Halfway to the poles: about 28 days
Near the poles: about 35 days
(The sun does not rotate as a solid body!)
sun's gravity   28 times greater than Earth's
sun's activity   The sun goes through an 11-year cycle of activity, in the form of sunspots, solar flares, solar mass ejections, etc.

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