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    Re: Long by Chron - Wikipedia article
    From: David C
    Date: 2020 Aug 17, 14:19 -0700

    Greg wrote

    Perhaps a new article titled Longitude Methods is needed to include the many methods and formulae with references and links.

    I agree. Specific methods could still have their own page. For example a long by chron worked with two latitudes is a chord Sumner. If worked with one latitude and an azimuth is calculated it is a tangent Sumner. Such material probably does not belong in a Longitude Methods page. And remember that two intercept sights determine longitude.

    I am not sure if my 1958 and 1966 copies of Bowditch contain the chapter you mention. I willl check. Wikipedia is very strong on references and it would make things a lot easier if a single Bowditch chapter could be referred to, particularly in the early stage of creating a new page.

       
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