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Elongation of a Planet |
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Elongation of a Planet
the position of an inferior planet (Venus or Mercury) at the time when its longitude differs maximally from that of the sun. A distinction is made between the western and eastern elongations of a planet. At the time of elongation, Venus is located at an angular distance of 48° from the sun. The angular distance from Mercury to the sun at the time of elongation ranges from 18° to 28° because of the larger eccentricity of its orbit. During elongation, the planets move along the line of sight toward or away from the earth. (SeeCONFIGURATIONS.) 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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