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earth orbit |
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earth orbit [¦ərth ′ȯr·bət]
(astronomy) The elliptical motion of the earth about the sun (eccentricity 0.01675, average radius 9.296 × 107miles or 1.496 × 108kilometers) in a sidereal year. 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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