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annual equation |
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annual equation [′an·yə·wəl i′kwā·zhən] (astronomy) A variation in the moon's apparent motion caused by variations in the distance of the earth from the sun during the course of the year. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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