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    Re: Last light
    From: Geoffrey Kolbe
    Date: 2015 May 28, 10:58 +0100

    Frank Reed <NoReply_FrankReed@fer3.com> wrote:

    Who recognizes that as a normal, specific definition of "last light" --identical to the end of civil twilight?


    ​I would suggest that "civil twilight" assumes the observer is at ground level....

    Geoffrey Kolbe​
     
       
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