Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding

Compose Your Message

Add Images & Files
    Re: The Easy Lunars
    From: Sean C
    Date: 2018 Jan 12, 15:43 -0800


    You didn't mention what the HP of the Moon is for your example. So, assuming a value of 54.6', here's how I've been doing it:

    1) Lookup value for first correction: 46°39.5' = +49.3'

    2) Lookup value for second correction, lower limb: 54.6' = +2.1'

    3) Add those two values to get total lower limb correction: 49.3' + 2.1' = +51.4'

    4) Lookup value for second correction, upper limb: 54.6' = +2.4'

    5) Subtract 30' and add above value to first correction to get total upper limb correction: 49.3' - 30' = +19.3'; 19.3' + 2.4' = +21.7'

    6) Add the total lower and upper limb corrections and divide by two to get the average: 51.4' + 21.7' = +73.1'; 73.1' / 2 = +36.55'

    Hope that helps!


    Sean C.

    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