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
    Typos / Omissions in Tom Cunliffe's "Celestial Navigation" book?
    From: Greg R_
    Date: 2008 Jun 23, 19:30 -0700
    Since some of us have been in a manual sight-reduction/plotting mode lately, I've been re-visiting a lot of my basic celnav texts. When I got to Tom Cunliffe's otherwise fine "Celestial Navigation" book, I found some notes in the margins (that I'd made some time ago) about possible typos and/or omissions. I was on jury duty today, so thought I'd spend the time wisely and check my notes (and re-work the examples as necessary) - and I'm still convinced that my original notes were correct.
     
    If anyone has the same copy (1989 edition) and feels motivated, I'd definitely appreciate a second opinion on what I've found (and if anyone has a later edition, maybe they corrected these in a later edition?). I Googled "Cunliffe" and "typos" but didn't turn up anything useful. Also e-mailed the author via his website, but haven't heard back yet.
     
    -------------------------------------
    Pg. 18
      Case 1 - Example
        GHA for 16h = 60° 43.9' (vs. 60° 43.7')

      Case 2 - Example
        No Increments/Corrections page provided for 16m (only 14m and 15m)

      Case 3 - Example
        "Your longitude is 110°" ("E" designator missing)

      Case 4 - Example
        No Increments/Corrections page provided for 17m (only 14m and 15m)

    Pg. 40 - Example
        d correction calculation - Tabulated Hc = 46° 57' (vs. 47° 47' - he had it correct 2 paragraphs prior, but apparently was transcribed wrong in the d correction calculation). The final Hc value appears to be correct.

    Pg. 47 - Venus sight
      With an assumed longitude (ALong) = 15° 11.7'W, I get an LHA = 84° (don't understand why he used 15° 12.5'W as the ALong, much less how he gets an LHA of 89° out of it). There isn't a page for 48° Latitude in the book (and I don't have tables for that latitude either), so I can't verify the rest of his worksheet.
    -------------------------------------
     
    --
    GregR
     

    --~--~---------~--~----~------------~-------~--~----~
    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To , email NavList-@fer3.com
    -~----------~----~----~----~------~----~------~--~---

       
    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