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: Lunar Distance Charts and Tables - Jun 2020
    From: Andrew Bauer
    Date: 2022 May 16, 23:11 -0700

    Hello HermanD,

    After years of working with Johannes (thenauticalalmanac.com) we know each other very well. He is indeed now a friend of mine and uses my software since years to generate what he publishes. I was also thinking along your lines ... that it might be a good idea to publish Lunars too. Well, I think we are a little beyond the year 1850, when Lunars quickly went "out of fashion" (replaced by marine chronometers). However I see a charm in studying or even employing the Lunar Distance method with solid good robust sextant. It's a challenge if ever there was one for yachsmen with a sextant.

    With pleasure I'll pass your idea on to Johannes. Thanks for your feedback - and I welcome more feedback from this site. I can add that I did not even attempt to implement the "quadratic method" that Jorrit Visser described mathematically - however I used a far simpler approximation to determine the cut-off point when to drop ("invalidate") Lunar Distance angles when a celestial body passes close to the Moon. I rely on the experts here on NavList to correct me where necessary.

    Kind Regards from Munich, Andrew
    (ooops ... there's a typo in the title: I meant Jun 2022, of course)

       
    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