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Solar constant
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Graph showing reconstructions of long-term solar irradiance from 1600 to 2000, with two data series: a blue line for the long-term trend from modeling sunlike stars and a purple line for the solar magnetic flux model, both measured in watts per square metre.
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Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
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Solar constant: References & Edit History

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  • Kenneth Lang
    Professor of astrophysics and radio astronomy, Tufts University. Prof. Lang is a world renowned author of popular and scholarly books in astronomy and astrophysics.

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Article History

Type Description Contributor Date
Article title updated for style. Nov 09, 2026
Add new Web site: Australian Government Bureau of Meterology - Radio and Space Weather Service The Solar Constant. Aug 24, 2012
Article revised and updated. Jul 22, 2010
Media added. Jan 28, 2009
Article revised and updated. Mar 19, 2008
Article added to new online database. Jul 20, 1998
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