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Geocentric Parallax |
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geocentric parallax [¦jē·ō¦sen·trik ′par·ə‚laks]
(astronomy) The difference in the apparent direction or position of a celestial body, measured in seconds of arc, as determined from the center of the earth and from a point on its surface; this varies with the body's altitude and distance from the earth. Also known as diurnal parallax. Geocentric Parallax (or diurnal parallax), the angle whose vertex is at the center of a celestial body and whose sides extend to the center of the earth and to the point of observation on the earth’s surface. (See.) 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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