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: the term "Latitude by account" means??
    From: Greg Rudzinski
    Date: 2012 Mar 12, 05:42 -0700

    Alan,

    Can you post an image of the page in Hansen's tables where it refers to Latitude by account. I do not have my copy with me here in Florida. As I recall when doing the initial look-ups using Latitude and Declination you will be using the DR Latitude and the Declination for the time of the observation. Precision is not critical here so the nearest whole Latitude and Declination will often be good enough for selection of the Key Table. Visual interpolation using the DR Latitude and exact Declination for the time of observation will improve the Key Table section for more precise ex-meridian corrections which is how I do it.

    Greg Rudzinski
    ----------------------------------------------------------------
    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com
    ----------------------------------------------------------------

       
    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