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irradiation correction |
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irradiation correction [i‚rād·ē′ā·shən kə′rek·shən]
(navigation) A correction to the readings of sextant altitudes made necessary by irradiation that is caused by the apparent enlargement of the bright surface of a celestial body against the darker background of the sky. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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