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
    Re: Not exactly "pinwheeling"
    From: Greg Rudzinski
    Date: 2011 Oct 21, 17:56 -0700


    Are you using Pub 229 for sight reductions ? If 35N 119W is the assumed position of convenience then you must be using a calculator or online sight reduction. If you are using Pub 229 then each body will have a different assumed Longitude along Latitude 35N to get an even LHA ( not 119*W)

    Post the star/planet info then we can compare the two types of sight reduction plots -Pub 229 vs. Calculator. For now it might be better to be working with three stars/planets differing by 120* in azimuth.

    Greg Rudzinski

    [NavList] Not exactly "pinwheeling"
    From: Randall.F.Morrow---org
    Date: 21 Oct 2011 11:05

    It's not "pin-wheeling" but it is getting better.
    This is the plot of this mornings round of sights: (10/21/2011)

    My AP was W119* , N35*.
    My actual position, from a web site based on a street address, is W119*5', N35*19'. (I don't own a GPS)
    The sextant is a Davis Mark 15, using a levelled mirror a.h and a digital level only accurate to 1/10 degree.
    The intercept distances ranged from 0.3 miles to 32 miles.
    My moon sights always seem to be the worst of the bunch.
    Thanks to all for your help and patience.

    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?

    Join NavList

    (please, no nicknames or handles)
    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 Settings

    Posting 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