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: Star to Star Distances taken on a Second Hand Sextant
    From: Brad Morris
    Date: 2019 Dec 4, 17:12 -0800

    Hello Michael

    Firstly, permit me to thank you for presenting your data.  I appreciate your enthusiasm.  If I may be permitted to ask for clarifications

    I have examined two of the spreadsheet files.  Procyon//Pollux and Arcturus//Alioth.  From this inspection, I see you kept the same format.  Consequently I only need talk about one, say Procyon//Pollux

    At the very top of the sheet Procyon//Pollux, I believe you took the observation at 2019 April 06 at 11:02:13.  Is that zone UTZ-00?  A 24:00 clock or is that a PM observation (23:02:13)?

    In order to directly confirm cell F48=21°51'.13, which you label "Distance in Theory", you provided your Estimated Position as 55°1'N 1°27'.1W.  Is that correct?  

    Next, you computed cell F65=22°52'.25, which you label "Corrected Distance".   

    There is a one time observation of distance, in cells D67 E67 = 22°46'.5.  Can you confirm that is just one observation?  

    Indicated in cell g67 is the Index Error.  5' off the arc.  If its off, put it on, arriving at 22°51'.5 measured, cell 

    You then take the delta, getting -0.013° or -0'.8, given in cell J67.

    Is my understanding of the contents of the file template correct, given Procyon//Pollux?

    Thanks in advance for your time answering my questions.  They are posed as requests for clarifications.

    Brad

     

       
    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