Welcome to the NavList Message Boards.

NavList:

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

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    Name or NavList Code:
    Email:
       
    Reply
    Re: Sight reduction methods
    From: Yves Robin-Jouan
    Date: 2015 Nov 14, 02:08 -0800

    Hi Andrés,

    May be you can add in your synoptic diagram:

    - Georges Boissaye du Bocage method (Universal circle, 1682), which is tied to stereographic projection (but did not use complex algebra !)

    http://data.bnf.fr/15317695/georges_boissaye_du_bocage/#rdt70-15317695

    - Pierre Semirot method (1961), which is a mechanical one 

    "Navigation aérienne et nautique : nouvelle méthode de calcul", Journal des Observateurs, Vol 44 1961

    - and what about the "astrograph" ?

    I can't do more now, because Paris attack consequences are catching my attention.

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

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

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

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

    Email Settings

    NavList ID Code:

    Custom Index

    Subject:
    Author:
    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