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: A paper sextant sight...
    From: Tony Oz
    Date: 2018 Oct 4, 08:41 -0700

    Dear Frank,

    Thank you for confirming the typo there.

    I personally love my Casio fx-85ESPlus, which allows for "natural"-looking formulas to be entered. The cos(HA) = sin(Alt)/[cos(Dec)·cos(Lat)] - tan(Dec)·tan(Lat) looks nicer on it as I can use the "fraction" button for the first part of the formula. A more beautiful formula always gives more precise results. :)

    If I put the "°" sign after the closing bracket of the acos() function - acos(.......)°, I get really nice-looking results in DMS format.

    Thank you again!

    Warm regards,


    60°N 30°E

    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