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
    Re: Solve this Moon photo!
    From: Greg Rudzinski
    Date: 2020 Sep 28, 13:30 -0700

    Frank,

    I am in agreement on your best guess of the photographer position and on the trees location near the statue.  If the statue torch tip is 310 feet above the photographers eye then I get an appoximate 5° Hs for the moons upper limb for the torch silhouette moon image.  If the tree is 50 feet above the photographers eye then I get an appoximate 1.6° Hs for the moons lower limb on the aircraft silhouette moon image.  This then puts the silhouetted plane at about 2000 feet of altitude. What do you think? This would show about a 3' difference in upper and lower moon limb refraction for the 1.6° lower limb Hs on the aircraft moon image.

    Greg Rudzinski

       
    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