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
    Name or NavList Code:
    Re: Lunars: 10/27/2013
    From: Frank Reed
    Date: 2013 Oct 29, 09:57 -0700

    Paul Hirose wrote:
    "Apparently nobody else is curious about this -- how and why did you
    determine height of eye to .01 foot?"

    The 'how' is probably by some software 'app'. There are some available where you can click on a location and the app will determine your altitude above sea level from topographic data. Obviously anything beyond the nearest foot is irrelevant for celestial navigation purposes, but extra digits do no harm. The 'why' here may be because "height of eye" is an input in my online lunar calculator. It's only required if altitudes are actually observed. Otherwise it's ignored.

    And you wrote:
    "Note that "All times are LMT (EDT; UT -4)" is self-contradictory."

    Good catch. Of course it's obvious that he meant local zone time.


    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com

    Browse Files

    Drop Files


    What is NavList?

    Get a NavList ID Code

    (please, no nicknames or handles)
    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 Settings

    NavList ID 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