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
    or...
       
    Reply
    Old hydrographic office polar star map
    From: Jim Stephens
    Date: 2015 Dec 18, 10:54 -0800

    Anyone familiar with H.R. Mills' Positional Astronomy and Astro-Navigation Made Easy?  Page 61 describes "A Home-made Equatorial Device" constructed from two protractors.  One of the protractors is actually a star chart (page 64).  The text describes this as "a common type of syar map with polar coordinates, favored by navigators for star identification, and formerly published by the Hydrographic Office, Washington D,C., under the authority of the U.S. Navy."  (By the time of the book's publication (1978) the hydrographic Office had been superseded by the Naval Oceanographic Office.)  I haven't seen a star chart like this and would like to find one, anyone familiar with its name?

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    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:

    Email Settings

    Posting 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