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Sun
diameter:
1,390,000 km or about 863,706 miles
mass: 1.989e30 or about 4.4e30 pounds
quick fact: It contains more than 99.8% of the
total mass of the Solar System.
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::FACTS
-By far the largest object
in the solar system.
-Contains more than 99.8% of the total mass of the solar system.
-Made up of about 70% hydrogen and 28% helium.
-It changes slowly over time as the Sun converts hydrogen to
helium in its core.
-At the equator the surface rotates once every 25.4 days, near
the poles its as much as 36 days.
-The sun is not a solid body like Earth.
-The temperature at the core is 15.6 million Kelvin.
-The pressure at the core is 250 billion atmospheres.
-At the center of the core the Sun's density is more than 150
times that of water.
-The Sun's energy output is about 383,000,000,000,000,000,000
megawatts and is produced by nuclear fusion reactions.
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