Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Baffled by Baffin
    From: tony
    Date: 2005 Nov 25, 12:59 +0000

    Thanks for your comments George.
    I ran the London data through Redshift, an astronomy program, and having
    adjusted the date accordingly got a 9 minutes difference on Searle?s time of
    the moon?s meridian passage: 4h 34m.
    The only other reference to Searle?s Ephemerides is in a repeat of the lunar
    culmination procedure on 22 June 1615 (Julian). On this occasion, there are
    no problems, Baffin has a second almanac to consult, gets the moon?s
    relative motion correct, and the final result is fairly accurate.
    ...Nowe according to Searle?s Ephemerides, the moone came to the meridian at
    London at 4 54 30 and after Origamus, the moone came to the meridian at
    Wittenburg at 4 52 05 the same day.....
    ...74 degrees 5 minutes which is the latitude of this place west of London
    because the moone was later on the meridian at this place by 0 10 22.......
    I hope you are able to consult the copy of Searle?s in the Bodleian Library
    for the time of the moon?s transit, but this and the earlier one I sent are
    the only data that appear to be available.  Tony

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site