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
    Name or NavList Code:
    Email:
       
    Reply
    Re: Using analog stopwatches to time your sights,anyone else?
    From: Philippe Posth
    Date: 2022 Aug 19, 09:36 -0700

    Personally, I also use this stopwatch method for solo sights:

    - I start the stopwatch when the UT watch on board is at one full minute (seconds=0);

    - I do my sight by putting the celestial body a little 'in the water' if it is to my East, and a little 'in the air' if it is to my West;

    - I wait for the star to rise or fall to the horizon by itself, then holding my sextant by its handle with my right hand, and my stopwatch with my left hand;

    - When the celestial body tangents the horizon, I stop my stopwatch;

    - All I have to do now is add the time of the stopwatch to the initial time of the watch to get the exact time of my aim. Addition is always easier than subtraction, especially in sexagesimal.

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

    Enter the email address associated with your NavList messages. Your NavList code will be emailed to you immediately.
    Email:

    Email Settings

    NavList ID 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