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occultation |
Also found in: Wikipedia, Hutchinson | 0.03 sec. |
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occultation (ŏk'əltā`shən), in astronomy, eclipse of one celestial body by another, e.g., when the moon lies between a star and the earth. Occultations of stars by the moon are important in astronomy. Since stellar positions are very accurately known, the time and position of an occultation can be used to determine the position of the moon. Alternatively, an observer can determine his or her longitude longitude (lŏn`jĭt ..... Click the link for more information. by comparing the time at which he observes an occultation with a table listing the universal time universal time (UT), the international time standard common to every place in the world, it nominally reflects the mean solar time along the earth's prime meridian (renumbered to equate to civil time ). ..... Click the link for more information. at which the occultation occurs. 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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