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    Re: determination of longitude and the prime vertical
    From: Gary LaPook
    Date: 2007 Apr 28, 20:08 -0700

    Gary writes:
    
    And the SHA for polaris is off more than 50 minutes on Omar Reis'
    Online Nautical Almanac web site..
    
    On Apr 12, 12:42 pm, Bill  wrote:
    > Good eye George,
    >
    > First, there is a typo in LHA.  It should read 71d 09!9.  My apologies.  The
    > rest of information is as the site presented it.
    >
    > It is quite possible this site's program
    > (http://www.tecepe.com.br/cgi-win/cgiasvis.exeby Omar Reis) may be off on
    > GHA, LHA etc, by more than a rounding error in it's Navigator Star Finder
    > section.  It depends on the body.  Other areas of concern are stated RA's of
    > bodies converted to SHA and compared to the N.A.  Also note the declinations
    > given for Polaris for May: Site 89d 16!7, N.A. 89d 17!8.
    >
    > F
    
    
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