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    Re: Finding your Position via Lunar Eclipses
    From: Geoffrey Kolbe
    Date: 2015 Aug 26, 18:02 +0100
    On Tue, Aug 25, 2015 at 4:42 PM, Ed Popko wrote:

    Although not an every day occurence, how can a lunar eclipse be used to determine longitude?


    The altitude of the Moon could be measured at various time throughout the eclipse. The time between altitude measurements should be recorded accurately. The absolute time of these measurements can be estimated from the extent of the shadow of the earth on the Moon, using the time between measurements to optimise the fit. A fix can then be determined in the usual way.

    Geoffrey Kolbe

     
       
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