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
    or...
       
    Reply
    Re: Longitude, zone time, and local mean time
    From: Bruce Cutting
    Date: 2018 Oct 29, 18:49 -0600

    In my book, having the right answer is about 1/4 of the problem.  Knowing
    how/why is the other 75%.  I've seen any number of exams where he answer
    was correct and the derivation was ridiculous.  I always like to derive
    the answer using mte most basic calculations (so I don't have to carry
    much "baggage").
    
    Cheers!
    
    On Mon, October 29, 2018 15:31, David Fleming wrote:
    > First off you have the right answer so you must understand it even if it
    > doesn't feel like it. An alternative way to do what Bruce said'
    > 150 degrees is a zone center and you are 6d 36.8 east of that, therefore a
    > later time. Look up 6d 36.8m in increments and corrections and you find
    > that for 26m  27sec for a planet ( 15 deg/hr) therefore time is 23:45 +
    > 00:26:27  or  24:11:27
    > DaveF
    >
    >
    > [plain text auto-generated]
    > ----------------------------------------------------------------
    > NavList message boards and member settings: http://fer3.com/NavList
    > Members may optionally receive posts by email.
    > To cancel email delivery, send a message to NoMail[at]fer3.com
    > ----------------------------------------------------------------
    > ----------------------------------------------------------------
    >
    >
    >
    > View and reply to this message:
    > http://fer3.com/arc/m2.aspx/Longitude-zone-time-local-mean-time-Fleming-oc
    > t-2018-g43211
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    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:

    Email Settings

    Posting 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