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    Re: Lunar distance measurement in ideal conditions: attainable accuracy.
    From: Alexandre Eremenko
    Date: 2013 Jan 7, 17:50 -0800

    Bill,
    I have few more questions about your attachments.
    1. In your index error columns, all numbers are positive.
    Does this mean that the index error was always positive, or you
    did not care of the sign when you recorded it?

    I am still amazed with the difference of accuracy between Lunar 1
    and Lunar 2 spreadsheets. Your Index Error does not show such remarkable
    progress. Was sheet 1 the very first Lunar you ever tried?


    2. Page from Cook's travel.
    It has a footnote saying that Cook was about 1 degree off in his longitude.
    I found both places on Google maps (according to
    the coordinates in the footnote, and according to longitude of Cook and latitude
    in the footnote, because the page has no record of Cook's latitude). They are both on shore, on the beach. How does Cook describe hos position, and
    what edition of his journal do you use?
    In my edition there are no footnotes.
    But my main question again is:

    Or what is the date of the observation?

    Alex.

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