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: Excel Almanac
    From: Herman Dekker
    Date: 2021 Jan 6, 07:13 -0800


    Hello Sean,
    I changed only the UT to 00:00:00 (on 1 jan 2021) the calculated Sun GHA is 179°06,9' that's not the same as I get from other sorces.
    On average (10 sources) it is 179°08,5' so what is, or do I wrong?
    I tested this because by conincidence a few days ago  I was on the webstite of Johannes Hornbach. TheNauticalAlmanac.com
    He has a nice collection off Celestial tables etc. and a Forum that nobody seems to use.
    His complete nautical Almanac for 2021 has as GHA value 179° 08,2' I attended him on this (also) wrong value.
    He thought it is the PYEem program that generates the wrong value.
    His only Sun Almanac give the most common 179°08,5' value. Generated with one other program.
    So Sean can you check your GHA value, or inform me how to use the program.

    Kind regards
    HermanD

       
    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