Difference between revisions of "Astronomical unit"
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| − | The astronomical unit ([[AU]]) is the mean [[Sun]]-[[Earth]] distance, a unit of distance widely used in expressing distances in the solar system. 1 AU = 93 million miles = | + | The astronomical unit ([[AU]]) is the mean [[Sun]]-[[Earth]] distance, a unit of distance widely used in expressing distances in the solar system. 1 AU = 149,597,870.691 km<ref>[http://www.iau.org/public/measuring/ The IAU and astronomical units] - International Astronomical Union site</ref>, or approximately 93 million miles. <!-- which mile? landmine, nautical mile, roman mile? //--> |
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| + | == References == | ||
| + | <references /> | ||
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[[Category:Physics]] | [[Category:Physics]] | ||
| + | [[Category:Astronomy]] | ||