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: Limb corrections using a reflective artificial horizon
    From: David Pike
    Date: 2014 Nov 6, 01:55 -0800

     

    Thank you Greg for the information.  Regarding the glass, it’s not so easy to buy a piece at any little DIY shop in the UK these days (probably EU regulations), so I bought a picture from a charity shop and used the 2mm glass from that.  Clearly, I should have bought two pictures and made myself a proper ‘rabbit hutch’.

     

     

     

    Regarding the semi-diameter question, if I shoot using a natural horizon, then I need to +/- one semi-diameter, 16’.  If I’m shooting limb to limb using a tray of oil, do I +/- 16, 32, or 64’?

     

     

     

    Steady for Astro

     

     

     

    Dave

     

       
    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