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: V-Correction for Sun?
    From: UNK
    Date: 2016 Sep 25, 09:19 -0700

    Axcel,

    Further to Stan's explanation, it is also worth noting that there is an error in the NA which affects sight reduction with a calculator.

    The interpolation formula given on page 278 is wrong. It works for all celestial bodies except for the sun. The correct formula for GHA Sun is

    GHA = GHA0 + x * 15, where x is computed as stated in the almanac.

    The HMNAO has long been aware of the error, but is unwilling to fix it.

    Herbert Prinz

       
    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