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: An example of a slope
    From: Paolo Borchetta
    Date: 2013 Mar 7, 00:12 -0800

    Hi Peter,
    On way to cut down on calculation in determining the reference slope is to reduce only one of the two initial reference sights for an arbitrary time around the initial time of the real sights series; then looking at the data of the first sight LHA1, Htab,Z and d, look for the data of the next LHA2 (LHA1+1deg.), this is equal to a 4 min. increase in the time for the first reference slope sight and ensure that you get an LHA2 round number.
    If the two d-corr. are identical there is not even the need to calculate Hc, but both Htab can be used in plotting the slope since it will not change the slope itself.
    My two cents, good posting.
    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

    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