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    Re: Tables for clearing the Lunar Distances from Bruce Stark
    From: Fred Hebard
    Date: 2003 Jul 30, 15:47 -0400

    Thanks.  I was suggesting that a description of this procedure with a
    worksheet be included in any subsequent revision of the tables.  I
    suppose directions for using them for sailings, etc, also could be
    included. It probably would be no more difficult or even easier than
    using H.O. 229, with the same accuracy and much less bulk. Thus the
    Tables would be an advance in arenas additional to lunars for solving
    navigational problems using pen and paper.
    Fred Hebard
    On Wednesday, Jul 30, 2003, at 13:58 US/Eastern, Jan Kalivoda wrote:
    > Fred,
    > Of course, I cannot act as Bruce's speaker, but I suppose that your
    > want is very easy to be fullfilled. The computation of reference
    > distances for full hours according to the second Bruce's worksheet
    > runs absolutely the same way as the computation of altitude for
    > assumed or D.R. position in St.Hilaire intercept method. Only the
    > difference of GHA's should be changed for LHA of the actual body and
    > one declination for the assumed latitude. The result will be the
    > calculated altitude instead of lunar distance. The declination and LHA
    > would have to be interpolated to the exact time of observation of the
    > body, what was superfluous in calculating reference lunar distances.
    > Jan Kalivoda

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