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Sun Reference Data - Windows to the Universe

Sun Reference Data

Diameter: 1.4 million km
(870,000 miles)

Age: 4.5 billion years
Mass: 330,000 x Earth Distance from Earth: 149.6 million km (93 million miles)
Density: 1.41 (water=1) Distance to Nearest Star: 4.3 light years
Solar Wind Speed: 3 million km/hr. Luminosity: 390 billion billion megawatts
Solar Cycle: 8 - 11 years Temperature at surface: 5,500o C (9,932o F)
Temperature at Core: 14 milliono C (22.5 milliono F) Temperature of Sunspots: 4,000o C (7,232o F)
Rotation Period at Equator: 25 Earth days Rotation Period at Poles: 35 Earth days

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA








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