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    Re: Question to Frank
    From: Ken Muldrew
    Date: 2005 Apr 22, 09:08 -0600

    On 22 Apr 2005 at 6:21, Jim Thompson wrote:
    > Also still doing only backyard
    > lunars using calculated altitudes instead of an artificial horizon to
    > measure all 3 angles.
    In fact this was the preferred method for land-based lunars. Take the
    lunar distance and then take a time sight using a star in the East or West
    rather than using the altitudes of the moon and other body in lieu of the
    time sight. Whether this preference was due to the fact that an artificial
    horizon limits you to altitudes below 60? or that you get a better time
    sight using a rising or setting star I just don't know (or perhaps there
    is some other factor that I haven't thought of).
    Ken Muldrew.
       \----------------------------+---------------------------------+   o_,
     O_/ \    Ken Muldrew, PhD      | Voice: (403) 220-5976           |
     <\__  \  Dept. of Cell Biology | Fax:   (403) 270-0617           |     |
      "\ L  | University of Calgary | kmuldrew{at}acs.ucalgary.ca        |   / /
       <    +-----------------------+---------------------------------+ / /
                   Morning coffee recapitulate phylogeny               L/

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