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    Re: Beta Cap -- the tenth lunars star
    From: Jim Thompson
    Date: 2004 Jan 21, 06:11 -0400
    Frank,
     
    1. Were data for any navigational stars (other than the lunar distance stars) provided in the almanacs prior to 1834?
     
    2. What did mariners use the other navigational stars for in 1834?  I know from previous posts that they were rarely used until line of position navigation, and even then not commonly used for several decades, but what what did they use them fore before Sumner published his method in the 1840's? 

    Jim Thompson
    jim2@jimthompson.net
    www.jimthompson.net
    Outgoing mail scanned by Norton Antivirus
    -----------------------------------------

    -----Original Message-----
    From: Navigation Mailing List [mailto:NAVIGATION-L@LISTSERV.WEBKAHUNA.COM]On Behalf Of Frank Reed

    Last month I noted that "Beta Capricorni" was listed in the 1778 Nautical Almanac for lunar distances, but we didn't have confirmation then as to when it was removed from the list. I had time today to check later editions of the almanac. It was gone by 1780, so I guess it was obvious very early that it was not useful in practice. This makes the list of nine standard lunars stars a remarkably stable and long-lasting group... some thirteen decades with no changes (apart from the addition of the navigational planets in 1834).
       
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