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: Sun and Moon in the Arctic
    From: Lars Bergman
    Date: 2026 Feb 27, 01:48 -0800

    Geoff and Peter,

    You are correct. Checking my calculations I found that an error of 6.3' when interpolating moon's declination resulted in a close to one degree error in my local hour angle. With correct declination I now get LHA = -121°27.5' = 238°32.5' giving a longitude of W 86°57'.

    Lars

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join / Get 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