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
    Bubble horizon
    From: Marc Bernstein
    Date: 2002 Dec 16, 15:49 -0500

    I assume most of us are using the "practice bubble horizon" sold by
    Celestaire. The key word here is 'practice'. It is not particularly easy to
    sight through and the bubble is quite wobbly. The main problem appears to be
    a lack of fluid dampening. Based upon my experience 7 minutes is not bad. I
    often get accuracies of 10-15 minutes. Maybe I need more practice.
    
    By the way if you hold a flashlight in just the right spot, it is possible
    to illuminate the bubble from the outside so you can use the practice bubble
    at night also. This only works with the Moon. There is not enough light
    transmission to sight a star, and no magnification.
    
    But for those of us who are landlocked it is still worth it.
    
    
    

       
    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