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: Dip Anomaly
    From: Greg Rudzinski
    Date: 2008 Mar 28, 15:02 -0700

    I would like to thank the NAVLIST for a very helpful and informative
    response. I have applied some of the suggestions successfully using a
    U.S. Navy MK 5 world war 2 bubble sextant. I did notice that a large
    formed bubble was steadier than a small formed bubble. The U.S. Navy
    MK 5 reads to 2 minutes of arc but can be visually interpolated to the
    nearest minute of arc. I haven't noticed any dip anomalies yet. I have
    been able to determine an unknown height of eye to within three
    On Mar 13, 1:22 pm, Greg Rudzinski  wrote:
    > Question for NAVLIST: Can a bubble sextant be used to measure dip
    > anomalies from a known height of eye? This would be a negative
    > measurement in minutes from bubble to horizon.
    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To unsubscribe, email NavList-unsubscribe@fer3.com

    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)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site