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annual parallax |
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annual parallax [′an·yə·wəl ′par·ə‚laks] (astronomy) The apparent displacement of a celestial body viewed from two separated observation points whose base line is the radius of the earth's orbit. Also known as heliocentric parallax. 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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This proves their immense height, which makes the annual parallax vanish from before our eyes. |
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