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lunation |
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lunation [lü′nā·shən]
(astronomy) The time period between two successive new moons. 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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No references found | Jackson was able to photograph the object on five nights spread over two lunations and reported it as being of magnitude 13, but it was then 'lost' for some 49 years before being recovered on 1985 July 17 from Klet Observatory in the Czech Republic. The moon referred to is not the real moon of the heavens, but a hypothetical moon on whose 'full' the date of Easter depends, and the lunations of this 'calendar' moon consist of 29 and 30 days alternately, with certain modifications to make the date of its full agree as nearly as possible with that of the real moon, which is known as the Paschal Full Moon. More accurately, the system has a period of 70 499 183 lunations which is about 5 700 000 years: more details are at astro. |
lunations |
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