Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: What do stars look like in your eye?
    From: Frank Reed CT
    Date: 2004 Apr 25, 18:18 EDT
    Re using shades when shooting Venus, Ken M wrote:
    "What a difference it made. They're also tremendous for reducing the brightness of the moon when using stars."

    Yes, exactly. A couple of the "classic" lunars stars are rather faint. There's almost no way to use them for lunars unless you reduce the Moon's brightness. Keep in mind that you have yet another source of error here. Those shades rarely get used and you won't know until you experiment whether they're a problem. I have a Davis plastic sextant which I like very much and use for sights often, but the shades introduce errors of a half a minute of arc or more. If you can find just the right object, you can try to get an index correction with the various shades in the light path.

    Frank E. Reed
    [ ] Mystic, Connecticut
    [X] Chicago, Illinois
    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)