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: Pick a Plath...
    From: Alexandre Eremenko
    Date: 2025 May 15, 06:48 -0700

    The one with nonius is supposed to give more accurate reading (to 0'2), however my experience shows that interpolating by eye gives the same (or better) result. I easily read the scale to 0'1 on my SNO-T which has an arrangement similar to the right picture. And has an additional advantage of much quicker reading. I suppose that both sextants have  illumination devices which are indispensable for star sights, but not shown in the pictures. 

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join / Get 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