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: Daytime Venus Lunar
    From: Antoine Couëtte
    Date: 2012 Aug 16, 02:20 -0700

    Dear Paul,

    Thank you very much for publishing your computation results.

    They quickly enabled me to check that my own Ephemeris results are very close from your values - and well inside my own +/- 6" minimum accuracy. Actually I find values differing from yours by under 1" for the Moon and by under 0"5 for Venus.

    It has been recognized that phase effect can not be solved with a common definition which can satisfy everybody. Up until about one year ago, I used own derived formula, which I replaced by a formula derived by one NavList Member who - through integration - found a slightly different value than the one I had been using. And so far, so good ...

    Thanks again for your results which I am going to print and compare with mine. I can already see that both our results seem extremely close anyway.

    Best Regards from

    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