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
    Re: Tables for clearing the Lunar Distances from Bruce Stark
    From: Fred Hebard
    Date: 2003 Jul 30, 15:47 -0400

    Jan,
    
    Thanks.  I was suggesting that a description of this procedure with a
    worksheet be included in any subsequent revision of the tables.  I
    suppose directions for using them for sailings, etc, also could be
    included. It probably would be no more difficult or even easier than
    using H.O. 229, with the same accuracy and much less bulk. Thus the
    Tables would be an advance in arenas additional to lunars for solving
    navigational problems using pen and paper.
    
    Fred Hebard
    
    On Wednesday, Jul 30, 2003, at 13:58 US/Eastern, Jan Kalivoda wrote:
    
    > Fred,
    >
    > Of course, I cannot act as Bruce's speaker, but I suppose that your
    > want is very easy to be fullfilled. The computation of reference
    > distances for full hours according to the second Bruce's worksheet
    > runs absolutely the same way as the computation of altitude for
    > assumed or D.R. position in St.Hilaire intercept method. Only the
    > difference of GHA's should be changed for LHA of the actual body and
    > one declination for the assumed latitude. The result will be the
    > calculated altitude instead of lunar distance. The declination and LHA
    > would have to be interpolated to the exact time of observation of the
    > body, what was superfluous in calculating reference lunar distances.
    >
    >
    > Jan Kalivoda
    >
    >
    
    
    

       
    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